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_spec5_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:59:18,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:59:18,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:59:18,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:59:18,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:59:18,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:59:18,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:59:18,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:59:18,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:59:18,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:59:18,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:59:18,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:59:18,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:59:18,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:59:18,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:59:18,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:59:18,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:59:18,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:59:18,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:59:18,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:59:18,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:59:18,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:59:18,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:59:18,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:59:19,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:59:19,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:59:19,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:59:19,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:59:19,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:59:19,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:59:19,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:59:19,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:59:19,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:59:19,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:59:19,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:59:19,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:59:19,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:59:19,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:59:19,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:59:19,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:59:19,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:59:19,014 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 [2019-10-03 02:59:19,038 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:59:19,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:59:19,038 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:59:19,039 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:59:19,040 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:59:19,040 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:59:19,040 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:59:19,040 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:59:19,041 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:59:19,041 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:59:19,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:59:19,043 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:59:19,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:59:19,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:59:19,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:59:19,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:59:19,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:59:19,044 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:59:19,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:59:19,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:59:19,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:59:19,045 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:59:19,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:59:19,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:59:19,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:59:19,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:59:19,047 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:59:19,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:59:19,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:59:19,047 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:59:19,086 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:59:19,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:59:19,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:59:19,103 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:59:19,103 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:59:19,104 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2019-10-03 02:59:19,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac485966/0d1b4a794ab2412d9dd9736bc0284745/FLAG073322c02 [2019-10-03 02:59:19,701 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:59:19,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2019-10-03 02:59:19,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac485966/0d1b4a794ab2412d9dd9736bc0284745/FLAG073322c02 [2019-10-03 02:59:19,990 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac485966/0d1b4a794ab2412d9dd9736bc0284745 [2019-10-03 02:59:19,999 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:59:20,000 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:59:20,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:59:20,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:59:20,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:59:20,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:59:19" (1/1) ... [2019-10-03 02:59:20,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21620fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:20, skipping insertion in model container [2019-10-03 02:59:20,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:59:19" (1/1) ... [2019-10-03 02:59:20,018 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:59:20,096 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:59:20,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:59:20,552 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:59:20,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:59:20,733 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:59:20,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:20 WrapperNode [2019-10-03 02:59:20,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:59:20,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:59:20,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:59:20,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:59:20,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:20" (1/1) ... [2019-10-03 02:59:20,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:20" (1/1) ... [2019-10-03 02:59:20,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:20" (1/1) ... [2019-10-03 02:59:20,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:20" (1/1) ... [2019-10-03 02:59:20,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:20" (1/1) ... [2019-10-03 02:59:20,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:20" (1/1) ... [2019-10-03 02:59:20,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:20" (1/1) ... [2019-10-03 02:59:20,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:59:20,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:59:20,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:59:20,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:59:20,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:20" (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 [2019-10-03 02:59:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:59:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:59:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:59:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:59:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:59:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:59:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:59:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:59:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:59:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:59:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:59:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:59:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:59:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:59:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:59:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:59:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:59:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:59:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:59:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:59:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:59:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:59:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:59:20,923 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:59:20,923 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:59:20,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:59:20,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:59:20,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:59:20,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:59:20,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:59:20,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:59:20,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:59:20,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:59:20,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:59:20,925 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:59:20,925 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:59:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:59:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:59:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:59:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:59:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:59:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:59:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:59:20,927 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:59:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:59:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:59:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:59:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:59:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:59:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:59:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:59:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:59:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:59:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:59:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:59:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:59:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:59:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:59:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:59:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:59:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:59:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:59:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:59:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:59:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:59:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:59:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:59:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:59:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:59:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:59:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:59:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:59:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:59:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:59:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:59:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:59:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:59:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:59:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:59:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:59:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:59:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:59:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:59:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:59:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:59:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:59:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:59:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:59:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:59:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:59:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:59:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:59:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:59:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:59:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:59:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:59:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:59:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:59:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:59:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:59:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:59:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:59:22,186 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:59:22,186 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:59:22,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:59:22 BoogieIcfgContainer [2019-10-03 02:59:22,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:59:22,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:59:22,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:59:22,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:59:22,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:59:19" (1/3) ... [2019-10-03 02:59:22,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fddab32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:59:22, skipping insertion in model container [2019-10-03 02:59:22,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:20" (2/3) ... [2019-10-03 02:59:22,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fddab32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:59:22, skipping insertion in model container [2019-10-03 02:59:22,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:59:22" (3/3) ... [2019-10-03 02:59:22,202 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product61.cil.c [2019-10-03 02:59:22,212 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:59:22,224 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:59:22,243 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:59:22,280 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:59:22,281 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:59:22,281 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:59:22,281 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:59:22,282 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:59:22,283 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:59:22,283 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:59:22,283 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:59:22,316 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2019-10-03 02:59:22,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-03 02:59:22,336 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:22,338 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:22,345 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:22,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:22,351 INFO L82 PathProgramCache]: Analyzing trace with hash -748532366, now seen corresponding path program 1 times [2019-10-03 02:59:22,354 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:22,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:22,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:22,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:22,424 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:22,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:22,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:22,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:59:22,742 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:22,747 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:59:22,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:59:22,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:22,761 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 2 states. [2019-10-03 02:59:22,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:22,801 INFO L93 Difference]: Finished difference Result 174 states and 205 transitions. [2019-10-03 02:59:22,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:59:22,804 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-10-03 02:59:22,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:22,828 INFO L225 Difference]: With dead ends: 174 [2019-10-03 02:59:22,828 INFO L226 Difference]: Without dead ends: 163 [2019-10-03 02:59:22,832 INFO L640 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 [2019-10-03 02:59:22,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-10-03 02:59:22,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2019-10-03 02:59:22,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2019-10-03 02:59:22,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 193 transitions. [2019-10-03 02:59:22,891 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 193 transitions. Word has length 59 [2019-10-03 02:59:22,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:22,892 INFO L475 AbstractCegarLoop]: Abstraction has 163 states and 193 transitions. [2019-10-03 02:59:22,892 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:59:22,892 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 193 transitions. [2019-10-03 02:59:22,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-03 02:59:22,896 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:22,897 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:22,897 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:22,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:22,898 INFO L82 PathProgramCache]: Analyzing trace with hash -637468051, now seen corresponding path program 1 times [2019-10-03 02:59:22,898 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:22,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:22,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:22,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:22,901 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:23,038 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:23,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:23,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:59:23,040 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:23,041 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:59:23,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:59:23,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:59:23,043 INFO L87 Difference]: Start difference. First operand 163 states and 193 transitions. Second operand 3 states. [2019-10-03 02:59:23,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:23,088 INFO L93 Difference]: Finished difference Result 154 states and 181 transitions. [2019-10-03 02:59:23,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:59:23,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-03 02:59:23,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:23,096 INFO L225 Difference]: With dead ends: 154 [2019-10-03 02:59:23,097 INFO L226 Difference]: Without dead ends: 154 [2019-10-03 02:59:23,098 INFO L640 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 [2019-10-03 02:59:23,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-10-03 02:59:23,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-10-03 02:59:23,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-10-03 02:59:23,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 181 transitions. [2019-10-03 02:59:23,124 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 181 transitions. Word has length 60 [2019-10-03 02:59:23,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:23,124 INFO L475 AbstractCegarLoop]: Abstraction has 154 states and 181 transitions. [2019-10-03 02:59:23,124 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:59:23,125 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 181 transitions. [2019-10-03 02:59:23,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-03 02:59:23,127 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:23,128 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:23,128 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:23,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:23,131 INFO L82 PathProgramCache]: Analyzing trace with hash -733015768, now seen corresponding path program 1 times [2019-10-03 02:59:23,131 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:23,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:23,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:23,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:23,134 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:23,312 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:23,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:59:23,312 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:23,313 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:59:23,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:59:23,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:23,314 INFO L87 Difference]: Start difference. First operand 154 states and 181 transitions. Second operand 7 states. [2019-10-03 02:59:23,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:23,791 INFO L93 Difference]: Finished difference Result 154 states and 180 transitions. [2019-10-03 02:59:23,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:59:23,792 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2019-10-03 02:59:23,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:23,794 INFO L225 Difference]: With dead ends: 154 [2019-10-03 02:59:23,795 INFO L226 Difference]: Without dead ends: 154 [2019-10-03 02:59:23,795 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:59:23,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-10-03 02:59:23,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-10-03 02:59:23,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-10-03 02:59:23,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 180 transitions. [2019-10-03 02:59:23,813 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 180 transitions. Word has length 64 [2019-10-03 02:59:23,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:23,816 INFO L475 AbstractCegarLoop]: Abstraction has 154 states and 180 transitions. [2019-10-03 02:59:23,816 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:59:23,821 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 180 transitions. [2019-10-03 02:59:23,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-03 02:59:23,829 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:23,829 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:23,830 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:23,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:23,836 INFO L82 PathProgramCache]: Analyzing trace with hash 330531379, now seen corresponding path program 1 times [2019-10-03 02:59:23,836 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:23,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:23,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:23,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:23,844 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:24,044 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:24,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:59:24,044 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:24,046 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:59:24,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:59:24,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:59:24,047 INFO L87 Difference]: Start difference. First operand 154 states and 180 transitions. Second operand 5 states. [2019-10-03 02:59:24,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:24,627 INFO L93 Difference]: Finished difference Result 273 states and 314 transitions. [2019-10-03 02:59:24,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:59:24,628 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 82 [2019-10-03 02:59:24,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:24,631 INFO L225 Difference]: With dead ends: 273 [2019-10-03 02:59:24,631 INFO L226 Difference]: Without dead ends: 273 [2019-10-03 02:59:24,631 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:59:24,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2019-10-03 02:59:24,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 255. [2019-10-03 02:59:24,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2019-10-03 02:59:24,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 290 transitions. [2019-10-03 02:59:24,650 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 290 transitions. Word has length 82 [2019-10-03 02:59:24,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:24,650 INFO L475 AbstractCegarLoop]: Abstraction has 255 states and 290 transitions. [2019-10-03 02:59:24,650 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:59:24,650 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 290 transitions. [2019-10-03 02:59:24,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-03 02:59:24,654 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:24,654 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:24,654 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:24,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:24,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1154984362, now seen corresponding path program 1 times [2019-10-03 02:59:24,655 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:24,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:24,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:24,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:24,657 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:24,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:59:24,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:24,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:59:24,808 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:24,809 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:59:24,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:59:24,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:24,810 INFO L87 Difference]: Start difference. First operand 255 states and 290 transitions. Second operand 7 states. [2019-10-03 02:59:25,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:25,620 INFO L93 Difference]: Finished difference Result 272 states and 314 transitions. [2019-10-03 02:59:25,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:59:25,621 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2019-10-03 02:59:25,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:25,624 INFO L225 Difference]: With dead ends: 272 [2019-10-03 02:59:25,624 INFO L226 Difference]: Without dead ends: 272 [2019-10-03 02:59:25,624 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:59:25,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2019-10-03 02:59:25,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 254. [2019-10-03 02:59:25,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-10-03 02:59:25,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 287 transitions. [2019-10-03 02:59:25,640 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 287 transitions. Word has length 96 [2019-10-03 02:59:25,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:25,641 INFO L475 AbstractCegarLoop]: Abstraction has 254 states and 287 transitions. [2019-10-03 02:59:25,641 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:59:25,641 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 287 transitions. [2019-10-03 02:59:25,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-03 02:59:25,644 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:25,645 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:25,645 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:25,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:25,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1590195415, now seen corresponding path program 1 times [2019-10-03 02:59:25,646 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:25,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:25,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:25,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:25,648 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:25,757 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:25,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:25,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:59:25,758 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:25,758 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:59:25,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:59:25,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:59:25,759 INFO L87 Difference]: Start difference. First operand 254 states and 287 transitions. Second operand 6 states. [2019-10-03 02:59:25,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:25,797 INFO L93 Difference]: Finished difference Result 261 states and 294 transitions. [2019-10-03 02:59:25,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:59:25,798 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2019-10-03 02:59:25,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:25,801 INFO L225 Difference]: With dead ends: 261 [2019-10-03 02:59:25,801 INFO L226 Difference]: Without dead ends: 261 [2019-10-03 02:59:25,802 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:25,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2019-10-03 02:59:25,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 259. [2019-10-03 02:59:25,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2019-10-03 02:59:25,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 292 transitions. [2019-10-03 02:59:25,834 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 292 transitions. Word has length 112 [2019-10-03 02:59:25,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:25,834 INFO L475 AbstractCegarLoop]: Abstraction has 259 states and 292 transitions. [2019-10-03 02:59:25,834 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:59:25,835 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 292 transitions. [2019-10-03 02:59:25,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-03 02:59:25,838 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:25,838 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:25,839 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:25,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:25,839 INFO L82 PathProgramCache]: Analyzing trace with hash -765609835, now seen corresponding path program 1 times [2019-10-03 02:59:25,839 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:25,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:25,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:25,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:25,842 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:25,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:25,955 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:25,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:59:25,956 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:25,956 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:59:25,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:59:25,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:59:25,957 INFO L87 Difference]: Start difference. First operand 259 states and 292 transitions. Second operand 8 states. [2019-10-03 02:59:25,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:25,985 INFO L93 Difference]: Finished difference Result 266 states and 299 transitions. [2019-10-03 02:59:25,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:59:25,986 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 112 [2019-10-03 02:59:25,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:25,988 INFO L225 Difference]: With dead ends: 266 [2019-10-03 02:59:25,988 INFO L226 Difference]: Without dead ends: 266 [2019-10-03 02:59:25,989 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:59:25,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-10-03 02:59:25,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 263. [2019-10-03 02:59:25,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2019-10-03 02:59:25,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 296 transitions. [2019-10-03 02:59:25,999 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 296 transitions. Word has length 112 [2019-10-03 02:59:26,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:26,000 INFO L475 AbstractCegarLoop]: Abstraction has 263 states and 296 transitions. [2019-10-03 02:59:26,000 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:59:26,000 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 296 transitions. [2019-10-03 02:59:26,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-03 02:59:26,002 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:26,002 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:26,002 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:26,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:26,003 INFO L82 PathProgramCache]: Analyzing trace with hash 3560180, now seen corresponding path program 1 times [2019-10-03 02:59:26,003 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:26,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:26,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:26,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:26,005 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:26,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:26,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:26,101 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:59:26,101 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:26,102 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:59:26,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:59:26,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:59:26,102 INFO L87 Difference]: Start difference. First operand 263 states and 296 transitions. Second operand 4 states. [2019-10-03 02:59:26,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:26,388 INFO L93 Difference]: Finished difference Result 519 states and 608 transitions. [2019-10-03 02:59:26,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:59:26,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2019-10-03 02:59:26,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:26,392 INFO L225 Difference]: With dead ends: 519 [2019-10-03 02:59:26,392 INFO L226 Difference]: Without dead ends: 519 [2019-10-03 02:59:26,393 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:59:26,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2019-10-03 02:59:26,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 510. [2019-10-03 02:59:26,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2019-10-03 02:59:26,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 591 transitions. [2019-10-03 02:59:26,417 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 591 transitions. Word has length 112 [2019-10-03 02:59:26,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:26,417 INFO L475 AbstractCegarLoop]: Abstraction has 510 states and 591 transitions. [2019-10-03 02:59:26,417 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:59:26,418 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 591 transitions. [2019-10-03 02:59:26,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-03 02:59:26,420 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:26,420 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:26,420 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:26,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:26,421 INFO L82 PathProgramCache]: Analyzing trace with hash -427651474, now seen corresponding path program 1 times [2019-10-03 02:59:26,421 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:26,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:26,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:26,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:26,423 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:26,585 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:26,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:26,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-03 02:59:26,585 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:26,586 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-03 02:59:26,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-03 02:59:26,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:59:26,587 INFO L87 Difference]: Start difference. First operand 510 states and 591 transitions. Second operand 9 states. [2019-10-03 02:59:27,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:27,963 INFO L93 Difference]: Finished difference Result 926 states and 1076 transitions. [2019-10-03 02:59:27,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-03 02:59:27,967 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 116 [2019-10-03 02:59:27,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:27,971 INFO L225 Difference]: With dead ends: 926 [2019-10-03 02:59:27,972 INFO L226 Difference]: Without dead ends: 926 [2019-10-03 02:59:27,972 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:59:27,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2019-10-03 02:59:28,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 850. [2019-10-03 02:59:28,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2019-10-03 02:59:28,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 973 transitions. [2019-10-03 02:59:28,019 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 973 transitions. Word has length 116 [2019-10-03 02:59:28,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:28,019 INFO L475 AbstractCegarLoop]: Abstraction has 850 states and 973 transitions. [2019-10-03 02:59:28,020 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-03 02:59:28,020 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 973 transitions. [2019-10-03 02:59:28,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-03 02:59:28,023 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:28,023 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:28,024 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:28,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:28,024 INFO L82 PathProgramCache]: Analyzing trace with hash -701597495, now seen corresponding path program 1 times [2019-10-03 02:59:28,024 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:28,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:28,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:28,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:28,029 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:28,233 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-03 02:59:28,234 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:59:28,234 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:59:28,235 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2019-10-03 02:59:28,238 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [85], [88], [92], [93], [94], [110], [114], [115], [116], [119], [121], [127], [131], [134], [135], [136], [145], [149], [153], [156], [159], [161], [167], [169], [172], [187], [188], [189], [190], [200], [202], [207], [210], [211], [213], [218], [220], [221], [222], [223], [227], [230], [234], [240], [267], [268], [271], [275], [276], [279], [281], [284], [291], [294], [297], [301], [302], [305], [306], [307], [309], [310], [311], [313], [316], [318], [321], [324], [333], [335], [336], [339], [341], [347], [351], [354], [355], [356], [380], [382], [383], [450], [451], [461], [469], [470], [471], [472], [473], [474], [475], [476], [477], [509], [510], [511], [512], [515], [516], [517], [518], [519], [520], [523], [524], [527], [528], [529], [530], [531], [532], [533], [534], [535], [536], [537], [538], [539], [540], [545], [546], [547], [548], [551], [552], [553], [554], [555], [556], [557], [558], [559], [561], [562], [565], [566], [567], [568], [571], [572], [573], [575], [576], [581], [582], [583] [2019-10-03 02:59:28,281 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:59:28,281 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:59:28,357 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:59:28,358 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-10-03 02:59:28,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:28,362 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:59:28,428 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:59:28,428 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:59:28,441 INFO L420 sIntCurrentIteration]: We unified 192 AI predicates to 192 [2019-10-03 02:59:28,441 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:59:28,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:59:28,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:59:28,444 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:28,444 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:59:28,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:59:28,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:28,445 INFO L87 Difference]: Start difference. First operand 850 states and 973 transitions. Second operand 2 states. [2019-10-03 02:59:28,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:28,446 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:59:28,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:59:28,446 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 193 [2019-10-03 02:59:28,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:28,448 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:59:28,448 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:59:28,449 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:28,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:59:28,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:59:28,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:59:28,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:59:28,451 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 193 [2019-10-03 02:59:28,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:28,451 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:59:28,451 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:59:28,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:59:28,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:59:28,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:59:28 BoogieIcfgContainer [2019-10-03 02:59:28,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:59:28,461 INFO L168 Benchmark]: Toolchain (without parser) took 8458.83 ms. Allocated memory was 130.5 MB in the beginning and 346.0 MB in the end (delta: 215.5 MB). Free memory was 85.8 MB in the beginning and 184.8 MB in the end (delta: -99.0 MB). Peak memory consumption was 116.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:28,462 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 130.5 MB. Free memory was 104.7 MB in the beginning and 104.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-03 02:59:28,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.51 ms. Allocated memory was 130.5 MB in the beginning and 197.7 MB in the end (delta: 67.1 MB). Free memory was 85.6 MB in the beginning and 161.3 MB in the end (delta: -75.8 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:28,466 INFO L168 Benchmark]: Boogie Preprocessor took 101.02 ms. Allocated memory is still 197.7 MB. Free memory was 161.3 MB in the beginning and 157.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:28,472 INFO L168 Benchmark]: RCFGBuilder took 1356.58 ms. Allocated memory was 197.7 MB in the beginning and 217.6 MB in the end (delta: 19.9 MB). Free memory was 157.3 MB in the beginning and 184.9 MB in the end (delta: -27.6 MB). Peak memory consumption was 93.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:28,473 INFO L168 Benchmark]: TraceAbstraction took 6264.02 ms. Allocated memory was 217.6 MB in the beginning and 346.0 MB in the end (delta: 128.5 MB). Free memory was 184.9 MB in the beginning and 184.8 MB in the end (delta: 134.8 kB). Peak memory consumption was 128.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:28,484 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 130.5 MB. Free memory was 104.7 MB in the beginning and 104.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 732.51 ms. Allocated memory was 130.5 MB in the beginning and 197.7 MB in the end (delta: 67.1 MB). Free memory was 85.6 MB in the beginning and 161.3 MB in the end (delta: -75.8 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.02 ms. Allocated memory is still 197.7 MB. Free memory was 161.3 MB in the beginning and 157.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1356.58 ms. Allocated memory was 197.7 MB in the beginning and 217.6 MB in the end (delta: 19.9 MB). Free memory was 157.3 MB in the beginning and 184.9 MB in the end (delta: -27.6 MB). Peak memory consumption was 93.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6264.02 ms. Allocated memory was 217.6 MB in the beginning and 346.0 MB in the end (delta: 128.5 MB). Free memory was 184.9 MB in the beginning and 184.8 MB in the end (delta: 134.8 kB). Peak memory consumption was 128.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 925]: 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 44 procedures, 262 locations, 1 error locations. SAFE Result, 6.1s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1792 SDtfs, 1484 SDslu, 3565 SDs, 0 SdLazy, 2033 SolverSat, 593 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 298 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.7864583333333334 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 126 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1006 NumberOfCodeBlocks, 1006 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 996 ConstructedInterpolants, 0 QuantifiedInterpolants, 183282 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 72/81 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...