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_spec2_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:05,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:05,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:05,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:05,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:05,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:05,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:05,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:05,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:05,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:05,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:05,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:05,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:05,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:05,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:05,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:05,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:05,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:05,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:05,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:05,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:05,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:05,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:05,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:05,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:05,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:05,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:05,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:05,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:05,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:05,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:05,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:05,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:05,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:05,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:05,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:05,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:05,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:05,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:05,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:05,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:05,941 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 [2019-09-20 13:30:05,956 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:05,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:05,957 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:05,957 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:05,958 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:05,958 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:05,958 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:05,958 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:05,959 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:05,959 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:05,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:05,960 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:05,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:05,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:05,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:05,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:05,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:05,961 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:05,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:05,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:05,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:05,962 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:05,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:05,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:05,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:05,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:05,963 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:05,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:05,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:05,963 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:05,991 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:06,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:06,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:06,009 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:06,009 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:06,010 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product29.cil.c [2019-09-20 13:30:06,066 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb914ba3/a7f83ee3c9db4b5d9853aa0a388baf4f/FLAGfd6f8ca47 [2019-09-20 13:30:06,602 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:06,604 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product29.cil.c [2019-09-20 13:30:06,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb914ba3/a7f83ee3c9db4b5d9853aa0a388baf4f/FLAGfd6f8ca47 [2019-09-20 13:30:06,901 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb914ba3/a7f83ee3c9db4b5d9853aa0a388baf4f [2019-09-20 13:30:06,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:06,913 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:06,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:06,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:06,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:06,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:06" (1/1) ... [2019-09-20 13:30:06,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e757327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:06, skipping insertion in model container [2019-09-20 13:30:06,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:06" (1/1) ... [2019-09-20 13:30:06,934 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:07,001 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:07,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:07,491 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:07,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:07,649 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:07,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07 WrapperNode [2019-09-20 13:30:07,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:07,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:07,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:07,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:07,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:07,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:07,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:07,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:07,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (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 [2019-09-20 13:30:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:30:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:30:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:07,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:07,833 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:07,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:30:07,834 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:07,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:07,835 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:07,835 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:07,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:07,836 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:07,836 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:07,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:07,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:07,836 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:07,836 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:07,837 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:07,837 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:07,838 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:07,838 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:07,838 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:07,838 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:07,838 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:30:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:07,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:30:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:30:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:30:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:30:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:09,040 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:09,041 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:09,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:09 BoogieIcfgContainer [2019-09-20 13:30:09,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:09,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:09,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:09,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:09,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:06" (1/3) ... [2019-09-20 13:30:09,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8024380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:09, skipping insertion in model container [2019-09-20 13:30:09,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (2/3) ... [2019-09-20 13:30:09,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8024380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:09, skipping insertion in model container [2019-09-20 13:30:09,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:09" (3/3) ... [2019-09-20 13:30:09,052 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product29.cil.c [2019-09-20 13:30:09,062 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:09,073 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:09,092 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:09,124 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:09,124 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:09,124 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:09,124 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:09,125 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:09,125 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:09,125 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:09,126 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:09,152 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2019-09-20 13:30:09,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:09,169 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:09,170 INFO L407 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] [2019-09-20 13:30:09,173 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:09,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:09,180 INFO L82 PathProgramCache]: Analyzing trace with hash -454427267, now seen corresponding path program 1 times [2019-09-20 13:30:09,182 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:09,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:09,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:09,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:09,237 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:09,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:09,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:09,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:09,522 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:09,528 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:09,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:09,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:09,549 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 2 states. [2019-09-20 13:30:09,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:09,579 INFO L93 Difference]: Finished difference Result 135 states and 159 transitions. [2019-09-20 13:30:09,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:09,581 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:09,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:09,594 INFO L225 Difference]: With dead ends: 135 [2019-09-20 13:30:09,594 INFO L226 Difference]: Without dead ends: 124 [2019-09-20 13:30:09,596 INFO L636 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 [2019-09-20 13:30:09,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-09-20 13:30:09,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-09-20 13:30:09,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-09-20 13:30:09,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 147 transitions. [2019-09-20 13:30:09,647 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 147 transitions. Word has length 51 [2019-09-20 13:30:09,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:09,648 INFO L475 AbstractCegarLoop]: Abstraction has 124 states and 147 transitions. [2019-09-20 13:30:09,648 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:09,648 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 147 transitions. [2019-09-20 13:30:09,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:09,652 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:09,652 INFO L407 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] [2019-09-20 13:30:09,653 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:09,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:09,653 INFO L82 PathProgramCache]: Analyzing trace with hash 364968758, now seen corresponding path program 1 times [2019-09-20 13:30:09,653 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:09,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:09,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:09,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:09,657 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:09,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:09,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:09,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:09,821 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:09,824 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:09,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:09,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:09,826 INFO L87 Difference]: Start difference. First operand 124 states and 147 transitions. Second operand 3 states. [2019-09-20 13:30:09,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:09,855 INFO L93 Difference]: Finished difference Result 115 states and 135 transitions. [2019-09-20 13:30:09,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:09,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:09,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:09,862 INFO L225 Difference]: With dead ends: 115 [2019-09-20 13:30:09,862 INFO L226 Difference]: Without dead ends: 115 [2019-09-20 13:30:09,863 INFO L636 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 [2019-09-20 13:30:09,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-09-20 13:30:09,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-09-20 13:30:09,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-09-20 13:30:09,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2019-09-20 13:30:09,885 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2019-09-20 13:30:09,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:09,886 INFO L475 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2019-09-20 13:30:09,886 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:09,886 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2019-09-20 13:30:09,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-20 13:30:09,889 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:09,889 INFO L407 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] [2019-09-20 13:30:09,889 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:09,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:09,890 INFO L82 PathProgramCache]: Analyzing trace with hash 604582976, now seen corresponding path program 1 times [2019-09-20 13:30:09,890 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:09,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:09,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:09,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:09,893 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:10,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:10,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:10,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:10,006 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:10,007 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:10,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:10,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:10,008 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 3 states. [2019-09-20 13:30:10,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:10,024 INFO L93 Difference]: Finished difference Result 115 states and 134 transitions. [2019-09-20 13:30:10,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:10,025 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2019-09-20 13:30:10,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:10,027 INFO L225 Difference]: With dead ends: 115 [2019-09-20 13:30:10,027 INFO L226 Difference]: Without dead ends: 115 [2019-09-20 13:30:10,027 INFO L636 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 [2019-09-20 13:30:10,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-09-20 13:30:10,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-09-20 13:30:10,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-09-20 13:30:10,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 134 transitions. [2019-09-20 13:30:10,038 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 134 transitions. Word has length 56 [2019-09-20 13:30:10,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:10,038 INFO L475 AbstractCegarLoop]: Abstraction has 115 states and 134 transitions. [2019-09-20 13:30:10,038 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:10,039 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 134 transitions. [2019-09-20 13:30:10,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-20 13:30:10,050 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:10,051 INFO L407 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] [2019-09-20 13:30:10,051 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:10,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:10,052 INFO L82 PathProgramCache]: Analyzing trace with hash -781962313, now seen corresponding path program 1 times [2019-09-20 13:30:10,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:10,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:10,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:10,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:10,055 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:10,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:10,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:10,203 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:10,203 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:10,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:10,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:10,204 INFO L87 Difference]: Start difference. First operand 115 states and 134 transitions. Second operand 6 states. [2019-09-20 13:30:10,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:10,521 INFO L93 Difference]: Finished difference Result 194 states and 230 transitions. [2019-09-20 13:30:10,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:10,522 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2019-09-20 13:30:10,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:10,526 INFO L225 Difference]: With dead ends: 194 [2019-09-20 13:30:10,526 INFO L226 Difference]: Without dead ends: 194 [2019-09-20 13:30:10,527 INFO L636 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 [2019-09-20 13:30:10,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-09-20 13:30:10,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 192. [2019-09-20 13:30:10,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2019-09-20 13:30:10,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 228 transitions. [2019-09-20 13:30:10,573 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 228 transitions. Word has length 69 [2019-09-20 13:30:10,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:10,574 INFO L475 AbstractCegarLoop]: Abstraction has 192 states and 228 transitions. [2019-09-20 13:30:10,574 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:10,574 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 228 transitions. [2019-09-20 13:30:10,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-20 13:30:10,583 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:10,583 INFO L407 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] [2019-09-20 13:30:10,583 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:10,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:10,584 INFO L82 PathProgramCache]: Analyzing trace with hash 737122587, now seen corresponding path program 1 times [2019-09-20 13:30:10,584 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:10,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:10,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:10,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:10,591 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:10,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:10,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:10,760 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:10,760 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:10,760 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:10,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:10,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:10,761 INFO L87 Difference]: Start difference. First operand 192 states and 228 transitions. Second operand 7 states. [2019-09-20 13:30:11,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:11,078 INFO L93 Difference]: Finished difference Result 126 states and 139 transitions. [2019-09-20 13:30:11,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:11,078 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2019-09-20 13:30:11,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:11,079 INFO L225 Difference]: With dead ends: 126 [2019-09-20 13:30:11,079 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:11,080 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:30:11,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:11,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:11,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:11,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2019-09-20 13:30:11,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:11,081 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:11,081 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:11,083 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:11,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:11,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:11 BoogieIcfgContainer [2019-09-20 13:30:11,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:11,092 INFO L168 Benchmark]: Toolchain (without parser) took 4177.88 ms. Allocated memory was 140.5 MB in the beginning and 260.6 MB in the end (delta: 120.1 MB). Free memory was 85.9 MB in the beginning and 165.4 MB in the end (delta: -79.4 MB). Peak memory consumption was 40.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:11,094 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 105.3 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:11,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.99 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 85.7 MB in the beginning and 165.6 MB in the end (delta: -79.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:11,097 INFO L168 Benchmark]: Boogie Preprocessor took 94.50 ms. Allocated memory is still 200.3 MB. Free memory was 165.6 MB in the beginning and 161.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:11,099 INFO L168 Benchmark]: RCFGBuilder took 1298.38 ms. Allocated memory was 200.3 MB in the beginning and 225.4 MB in the end (delta: 25.2 MB). Free memory was 160.8 MB in the beginning and 191.8 MB in the end (delta: -31.0 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:11,101 INFO L168 Benchmark]: TraceAbstraction took 2044.71 ms. Allocated memory was 225.4 MB in the beginning and 260.6 MB in the end (delta: 35.1 MB). Free memory was 191.8 MB in the beginning and 165.4 MB in the end (delta: 26.4 MB). Peak memory consumption was 61.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:11,112 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 105.3 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 731.99 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 85.7 MB in the beginning and 165.6 MB in the end (delta: -79.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.50 ms. Allocated memory is still 200.3 MB. Free memory was 165.6 MB in the beginning and 161.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1298.38 ms. Allocated memory was 200.3 MB in the beginning and 225.4 MB in the end (delta: 25.2 MB). Free memory was 160.8 MB in the beginning and 191.8 MB in the end (delta: -31.0 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2044.71 ms. Allocated memory was 225.4 MB in the beginning and 260.6 MB in the end (delta: 35.1 MB). Free memory was 191.8 MB in the beginning and 165.4 MB in the end (delta: 26.4 MB). Peak memory consumption was 61.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 317]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 236 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 641 SDtfs, 288 SDslu, 724 SDs, 0 SdLazy, 243 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=4, 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 301 NumberOfCodeBlocks, 301 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 296 ConstructedInterpolants, 0 QuantifiedInterpolants, 32144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...