/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 01:01:50,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 01:01:50,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 01:01:50,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 01:01:50,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 01:01:50,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 01:01:50,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 01:01:50,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 01:01:50,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 01:01:50,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 01:01:50,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 01:01:50,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 01:01:50,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 01:01:50,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 01:01:50,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 01:01:50,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 01:01:50,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 01:01:50,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 01:01:50,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 01:01:50,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 01:01:50,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 01:01:50,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 01:01:50,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 01:01:50,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 01:01:50,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 01:01:50,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 01:01:50,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 01:01:50,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 01:01:50,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 01:01:50,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 01:01:50,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 01:01:50,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 01:01:50,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 01:01:50,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 01:01:50,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 01:01:50,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 01:01:50,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 01:01:50,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 01:01:50,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 01:01:50,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 01:01:50,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 01:01:50,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 01:01:50,907 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 01:01:50,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 01:01:50,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 01:01:50,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 01:01:50,908 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 01:01:50,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 01:01:50,909 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 01:01:50,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 01:01:50,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 01:01:50,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 01:01:50,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 01:01:50,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 01:01:50,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 01:01:50,910 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 01:01:50,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 01:01:50,911 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 01:01:50,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 01:01:50,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 01:01:50,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 01:01:50,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 01:01:50,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 01:01:50,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:01:50,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 01:01:50,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 01:01:50,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 01:01:50,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 01:01:50,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 01:01:50,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 01:01:50,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 01:01:51,302 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 01:01:51,320 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 01:01:51,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 01:01:51,326 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 01:01:51,326 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 01:01:51,327 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product53.cil.c [2019-11-07 01:01:51,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3325b8cf4/efa8e94036544591a9b8a4ab8c0af064/FLAG69939b0ab [2019-11-07 01:01:51,948 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 01:01:51,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product53.cil.c [2019-11-07 01:01:51,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3325b8cf4/efa8e94036544591a9b8a4ab8c0af064/FLAG69939b0ab [2019-11-07 01:01:52,247 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3325b8cf4/efa8e94036544591a9b8a4ab8c0af064 [2019-11-07 01:01:52,255 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 01:01:52,257 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 01:01:52,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 01:01:52,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 01:01:52,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 01:01:52,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:01:52" (1/1) ... [2019-11-07 01:01:52,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f3de09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:52, skipping insertion in model container [2019-11-07 01:01:52,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:01:52" (1/1) ... [2019-11-07 01:01:52,273 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 01:01:52,329 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 01:01:52,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:01:52,726 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 01:01:52,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:01:52,931 INFO L192 MainTranslator]: Completed translation [2019-11-07 01:01:52,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:52 WrapperNode [2019-11-07 01:01:52,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 01:01:52,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 01:01:52,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 01:01:52,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 01:01:52,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:52" (1/1) ... [2019-11-07 01:01:52,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:52" (1/1) ... [2019-11-07 01:01:52,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:52" (1/1) ... [2019-11-07 01:01:52,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:52" (1/1) ... [2019-11-07 01:01:53,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:52" (1/1) ... [2019-11-07 01:01:53,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:52" (1/1) ... [2019-11-07 01:01:53,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:52" (1/1) ... [2019-11-07 01:01:53,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 01:01:53,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 01:01:53,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 01:01:53,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 01:01:53,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:52" (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 [2019-11-07 01:01:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 01:01:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 01:01:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 01:01:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 01:01:53,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 01:01:53,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 01:01:53,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 01:01:53,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 01:01:53,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 01:01:53,127 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 01:01:53,127 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 01:01:53,127 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-07 01:01:53,127 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 01:01:53,128 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-11-07 01:01:53,128 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-07 01:01:53,129 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-07 01:01:53,131 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-07 01:01:53,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-07 01:01:53,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-07 01:01:53,131 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-07 01:01:53,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-07 01:01:53,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-07 01:01:53,132 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 01:01:53,132 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 01:01:53,132 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 01:01:53,132 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 01:01:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 01:01:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-07 01:01:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-07 01:01:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-07 01:01:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-07 01:01:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-07 01:01:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-07 01:01:53,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-07 01:01:53,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-07 01:01:53,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-11-07 01:01:53,134 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 01:01:53,135 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 01:01:53,135 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 01:01:53,135 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 01:01:53,135 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 01:01:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 01:01:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 01:01:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 01:01:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 01:01:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 01:01:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 01:01:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 01:01:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 01:01:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 01:01:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 01:01:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 01:01:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 01:01:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 01:01:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 01:01:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 01:01:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 01:01:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 01:01:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 01:01:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 01:01:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 01:01:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-07 01:01:53,139 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-07 01:01:53,139 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 01:01:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 01:01:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 01:01:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-07 01:01:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-07 01:01:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-07 01:01:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-07 01:01:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-07 01:01:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-07 01:01:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-07 01:01:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-07 01:01:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-07 01:01:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-11-07 01:01:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-07 01:01:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-07 01:01:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-07 01:01:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 01:01:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-07 01:01:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-11-07 01:01:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-07 01:01:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 01:01:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 01:01:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 01:01:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 01:01:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 01:01:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-07 01:01:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 01:01:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 01:01:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 01:01:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 01:01:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 01:01:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 01:01:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 01:01:54,343 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 01:01:54,344 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 01:01:54,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:01:54 BoogieIcfgContainer [2019-11-07 01:01:54,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 01:01:54,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 01:01:54,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 01:01:54,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 01:01:54,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:01:52" (1/3) ... [2019-11-07 01:01:54,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44eb74ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:01:54, skipping insertion in model container [2019-11-07 01:01:54,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:52" (2/3) ... [2019-11-07 01:01:54,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44eb74ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:01:54, skipping insertion in model container [2019-11-07 01:01:54,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:01:54" (3/3) ... [2019-11-07 01:01:54,355 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2019-11-07 01:01:54,366 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 01:01:54,376 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 01:01:54,389 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 01:01:54,418 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 01:01:54,419 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 01:01:54,419 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 01:01:54,419 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 01:01:54,420 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 01:01:54,420 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 01:01:54,420 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 01:01:54,420 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 01:01:54,447 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2019-11-07 01:01:54,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-07 01:01:54,458 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:01:54,459 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:01:54,461 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:01:54,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:01:54,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1045855625, now seen corresponding path program 1 times [2019-11-07 01:01:54,481 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:01:54,481 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789581001] [2019-11-07 01:01:54,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:01:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:01:54,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:01:54,913 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789581001] [2019-11-07 01:01:54,914 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:01:54,914 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 01:01:54,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451500366] [2019-11-07 01:01:54,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 01:01:54,923 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:01:54,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 01:01:54,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 01:01:54,941 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 2 states. [2019-11-07 01:01:55,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:01:55,015 INFO L93 Difference]: Finished difference Result 292 states and 361 transitions. [2019-11-07 01:01:55,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 01:01:55,025 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-11-07 01:01:55,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:01:55,059 INFO L225 Difference]: With dead ends: 292 [2019-11-07 01:01:55,060 INFO L226 Difference]: Without dead ends: 146 [2019-11-07 01:01:55,070 INFO L630 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 [2019-11-07 01:01:55,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-11-07 01:01:55,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-11-07 01:01:55,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-11-07 01:01:55,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 172 transitions. [2019-11-07 01:01:55,170 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 172 transitions. Word has length 46 [2019-11-07 01:01:55,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:01:55,171 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 172 transitions. [2019-11-07 01:01:55,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 01:01:55,171 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 172 transitions. [2019-11-07 01:01:55,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-07 01:01:55,184 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:01:55,184 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:01:55,184 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:01:55,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:01:55,185 INFO L82 PathProgramCache]: Analyzing trace with hash -334246685, now seen corresponding path program 1 times [2019-11-07 01:01:55,185 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:01:55,185 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205306227] [2019-11-07 01:01:55,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:01:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:01:55,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:01:55,305 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205306227] [2019-11-07 01:01:55,305 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:01:55,306 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 01:01:55,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292662793] [2019-11-07 01:01:55,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:01:55,308 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:01:55,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:01:55,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:01:55,309 INFO L87 Difference]: Start difference. First operand 146 states and 172 transitions. Second operand 3 states. [2019-11-07 01:01:55,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:01:55,332 INFO L93 Difference]: Finished difference Result 241 states and 283 transitions. [2019-11-07 01:01:55,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:01:55,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-11-07 01:01:55,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:01:55,335 INFO L225 Difference]: With dead ends: 241 [2019-11-07 01:01:55,335 INFO L226 Difference]: Without dead ends: 137 [2019-11-07 01:01:55,337 INFO L630 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 [2019-11-07 01:01:55,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-07 01:01:55,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2019-11-07 01:01:55,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-11-07 01:01:55,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2019-11-07 01:01:55,351 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 47 [2019-11-07 01:01:55,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:01:55,351 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2019-11-07 01:01:55,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:01:55,352 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2019-11-07 01:01:55,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-07 01:01:55,353 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:01:55,353 INFO L410 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] [2019-11-07 01:01:55,354 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:01:55,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:01:55,354 INFO L82 PathProgramCache]: Analyzing trace with hash 20699943, now seen corresponding path program 1 times [2019-11-07 01:01:55,354 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:01:55,355 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936354634] [2019-11-07 01:01:55,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:01:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:01:55,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:01:55,443 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936354634] [2019-11-07 01:01:55,443 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:01:55,443 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 01:01:55,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460594800] [2019-11-07 01:01:55,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:01:55,444 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:01:55,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:01:55,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:01:55,445 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand 3 states. [2019-11-07 01:01:55,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:01:55,486 INFO L93 Difference]: Finished difference Result 250 states and 297 transitions. [2019-11-07 01:01:55,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:01:55,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-11-07 01:01:55,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:01:55,496 INFO L225 Difference]: With dead ends: 250 [2019-11-07 01:01:55,496 INFO L226 Difference]: Without dead ends: 137 [2019-11-07 01:01:55,498 INFO L630 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 [2019-11-07 01:01:55,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-07 01:01:55,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2019-11-07 01:01:55,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-11-07 01:01:55,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 159 transitions. [2019-11-07 01:01:55,514 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 159 transitions. Word has length 51 [2019-11-07 01:01:55,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:01:55,517 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 159 transitions. [2019-11-07 01:01:55,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:01:55,517 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 159 transitions. [2019-11-07 01:01:55,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-11-07 01:01:55,520 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:01:55,520 INFO L410 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] [2019-11-07 01:01:55,520 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:01:55,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:01:55,524 INFO L82 PathProgramCache]: Analyzing trace with hash 134260403, now seen corresponding path program 1 times [2019-11-07 01:01:55,524 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:01:55,525 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153107164] [2019-11-07 01:01:55,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:01:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:01:55,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:01:55,728 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153107164] [2019-11-07 01:01:55,728 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:01:55,728 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 01:01:55,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809667260] [2019-11-07 01:01:55,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 01:01:55,729 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:01:55,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 01:01:55,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 01:01:55,730 INFO L87 Difference]: Start difference. First operand 137 states and 159 transitions. Second operand 5 states. [2019-11-07 01:01:56,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:01:56,309 INFO L93 Difference]: Finished difference Result 352 states and 425 transitions. [2019-11-07 01:01:56,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 01:01:56,311 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-11-07 01:01:56,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:01:56,316 INFO L225 Difference]: With dead ends: 352 [2019-11-07 01:01:56,316 INFO L226 Difference]: Without dead ends: 239 [2019-11-07 01:01:56,319 INFO L630 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 [2019-11-07 01:01:56,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-11-07 01:01:56,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 221. [2019-11-07 01:01:56,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2019-11-07 01:01:56,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 250 transitions. [2019-11-07 01:01:56,371 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 250 transitions. Word has length 69 [2019-11-07 01:01:56,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:01:56,377 INFO L462 AbstractCegarLoop]: Abstraction has 221 states and 250 transitions. [2019-11-07 01:01:56,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 01:01:56,377 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 250 transitions. [2019-11-07 01:01:56,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-11-07 01:01:56,380 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:01:56,380 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:01:56,380 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:01:56,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:01:56,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1484828875, now seen corresponding path program 1 times [2019-11-07 01:01:56,381 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:01:56,381 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888961999] [2019-11-07 01:01:56,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:01:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:01:56,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:01:56,560 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888961999] [2019-11-07 01:01:56,560 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:01:56,560 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 01:01:56,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028413812] [2019-11-07 01:01:56,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 01:01:56,561 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:01:56,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 01:01:56,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-11-07 01:01:56,562 INFO L87 Difference]: Start difference. First operand 221 states and 250 transitions. Second operand 10 states. [2019-11-07 01:01:57,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:01:57,234 INFO L93 Difference]: Finished difference Result 703 states and 867 transitions. [2019-11-07 01:01:57,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 01:01:57,235 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2019-11-07 01:01:57,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:01:57,242 INFO L225 Difference]: With dead ends: 703 [2019-11-07 01:01:57,242 INFO L226 Difference]: Without dead ends: 506 [2019-11-07 01:01:57,244 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-11-07 01:01:57,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2019-11-07 01:01:57,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 496. [2019-11-07 01:01:57,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2019-11-07 01:01:57,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 582 transitions. [2019-11-07 01:01:57,324 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 582 transitions. Word has length 83 [2019-11-07 01:01:57,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:01:57,325 INFO L462 AbstractCegarLoop]: Abstraction has 496 states and 582 transitions. [2019-11-07 01:01:57,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 01:01:57,325 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 582 transitions. [2019-11-07 01:01:57,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-11-07 01:01:57,332 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:01:57,332 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 01:01:57,332 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:01:57,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:01:57,333 INFO L82 PathProgramCache]: Analyzing trace with hash 27577775, now seen corresponding path program 1 times [2019-11-07 01:01:57,333 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:01:57,333 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346219820] [2019-11-07 01:01:57,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:01:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:01:57,489 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 01:01:57,489 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346219820] [2019-11-07 01:01:57,490 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290255353] [2019-11-07 01:01:57,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:01:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:01:57,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-07 01:01:57,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:01:57,942 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-07 01:01:57,942 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:01:58,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 01:01:58,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 01:01:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-07 01:01:58,413 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 01:01:58,414 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6, 10] total 19 [2019-11-07 01:01:58,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667264598] [2019-11-07 01:01:58,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 01:01:58,415 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:01:58,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 01:01:58,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2019-11-07 01:01:58,416 INFO L87 Difference]: Start difference. First operand 496 states and 582 transitions. Second operand 11 states. [2019-11-07 01:02:00,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:00,209 INFO L93 Difference]: Finished difference Result 1073 states and 1392 transitions. [2019-11-07 01:02:00,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-07 01:02:00,209 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 135 [2019-11-07 01:02:00,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:00,218 INFO L225 Difference]: With dead ends: 1073 [2019-11-07 01:02:00,218 INFO L226 Difference]: Without dead ends: 704 [2019-11-07 01:02:00,220 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 248 SyntacticMatches, 12 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2019-11-07 01:02:00,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2019-11-07 01:02:00,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 615. [2019-11-07 01:02:00,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-11-07 01:02:00,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 736 transitions. [2019-11-07 01:02:00,295 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 736 transitions. Word has length 135 [2019-11-07 01:02:00,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:00,297 INFO L462 AbstractCegarLoop]: Abstraction has 615 states and 736 transitions. [2019-11-07 01:02:00,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 01:02:00,297 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 736 transitions. [2019-11-07 01:02:00,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-11-07 01:02:00,301 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:00,301 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 01:02:00,517 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:02:00,517 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:00,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:00,518 INFO L82 PathProgramCache]: Analyzing trace with hash -2031940663, now seen corresponding path program 1 times [2019-11-07 01:02:00,518 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:00,519 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392657134] [2019-11-07 01:02:00,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:00,646 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 01:02:00,647 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392657134] [2019-11-07 01:02:00,647 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963520380] [2019-11-07 01:02:00,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:02:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:00,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-07 01:02:00,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:02:00,869 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-07 01:02:00,870 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:02:01,147 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 01:02:01,147 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 01:02:01,148 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2019-11-07 01:02:01,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978755531] [2019-11-07 01:02:01,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 01:02:01,149 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:01,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 01:02:01,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 01:02:01,149 INFO L87 Difference]: Start difference. First operand 615 states and 736 transitions. Second operand 6 states. [2019-11-07 01:02:01,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:01,208 INFO L93 Difference]: Finished difference Result 1226 states and 1504 transitions. [2019-11-07 01:02:01,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 01:02:01,208 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2019-11-07 01:02:01,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:01,213 INFO L225 Difference]: With dead ends: 1226 [2019-11-07 01:02:01,213 INFO L226 Difference]: Without dead ends: 635 [2019-11-07 01:02:01,215 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 01:02:01,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2019-11-07 01:02:01,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2019-11-07 01:02:01,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2019-11-07 01:02:01,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 758 transitions. [2019-11-07 01:02:01,285 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 758 transitions. Word has length 131 [2019-11-07 01:02:01,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:01,285 INFO L462 AbstractCegarLoop]: Abstraction has 635 states and 758 transitions. [2019-11-07 01:02:01,285 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 01:02:01,285 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 758 transitions. [2019-11-07 01:02:01,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-11-07 01:02:01,293 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:01,294 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 01:02:01,495 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:02:01,495 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:01,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:01,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1791700917, now seen corresponding path program 1 times [2019-11-07 01:02:01,497 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:01,497 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527309497] [2019-11-07 01:02:01,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:01,599 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 01:02:01,600 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527309497] [2019-11-07 01:02:01,600 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488694052] [2019-11-07 01:02:01,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:02:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:01,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-07 01:02:01,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:02:01,848 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-07 01:02:01,848 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:02:02,176 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 01:02:02,177 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 01:02:02,177 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2019-11-07 01:02:02,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775467848] [2019-11-07 01:02:02,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 01:02:02,178 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:02,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 01:02:02,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-11-07 01:02:02,204 INFO L87 Difference]: Start difference. First operand 635 states and 758 transitions. Second operand 5 states. [2019-11-07 01:02:02,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:02,248 INFO L93 Difference]: Finished difference Result 1142 states and 1401 transitions. [2019-11-07 01:02:02,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 01:02:02,249 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2019-11-07 01:02:02,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:02,254 INFO L225 Difference]: With dead ends: 1142 [2019-11-07 01:02:02,254 INFO L226 Difference]: Without dead ends: 531 [2019-11-07 01:02:02,256 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 259 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-11-07 01:02:02,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2019-11-07 01:02:02,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2019-11-07 01:02:02,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2019-11-07 01:02:02,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 633 transitions. [2019-11-07 01:02:02,292 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 633 transitions. Word has length 131 [2019-11-07 01:02:02,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:02,296 INFO L462 AbstractCegarLoop]: Abstraction has 531 states and 633 transitions. [2019-11-07 01:02:02,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 01:02:02,296 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 633 transitions. [2019-11-07 01:02:02,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-11-07 01:02:02,299 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:02,299 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:02:02,506 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:02:02,506 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:02,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:02,507 INFO L82 PathProgramCache]: Analyzing trace with hash -794012334, now seen corresponding path program 1 times [2019-11-07 01:02:02,507 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:02,507 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208054130] [2019-11-07 01:02:02,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:02,670 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-11-07 01:02:02,671 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208054130] [2019-11-07 01:02:02,671 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:02:02,671 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 01:02:02,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038713562] [2019-11-07 01:02:02,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 01:02:02,673 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:02,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 01:02:02,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-07 01:02:02,674 INFO L87 Difference]: Start difference. First operand 531 states and 633 transitions. Second operand 9 states. [2019-11-07 01:02:03,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:03,490 INFO L93 Difference]: Finished difference Result 1420 states and 1736 transitions. [2019-11-07 01:02:03,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-07 01:02:03,491 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 204 [2019-11-07 01:02:03,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:03,496 INFO L225 Difference]: With dead ends: 1420 [2019-11-07 01:02:03,497 INFO L226 Difference]: Without dead ends: 913 [2019-11-07 01:02:03,499 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2019-11-07 01:02:03,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2019-11-07 01:02:03,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 910. [2019-11-07 01:02:03,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 910 states. [2019-11-07 01:02:03,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1076 transitions. [2019-11-07 01:02:03,583 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1076 transitions. Word has length 204 [2019-11-07 01:02:03,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:03,584 INFO L462 AbstractCegarLoop]: Abstraction has 910 states and 1076 transitions. [2019-11-07 01:02:03,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 01:02:03,584 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1076 transitions. [2019-11-07 01:02:03,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-11-07 01:02:03,588 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:03,588 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:02:03,589 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:03,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:03,589 INFO L82 PathProgramCache]: Analyzing trace with hash 314286646, now seen corresponding path program 1 times [2019-11-07 01:02:03,589 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:03,589 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736517133] [2019-11-07 01:02:03,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:03,693 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2019-11-07 01:02:03,693 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736517133] [2019-11-07 01:02:03,694 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:02:03,694 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 01:02:03,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413845918] [2019-11-07 01:02:03,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 01:02:03,695 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:03,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 01:02:03,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 01:02:03,696 INFO L87 Difference]: Start difference. First operand 910 states and 1076 transitions. Second operand 6 states. [2019-11-07 01:02:03,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:03,946 INFO L93 Difference]: Finished difference Result 919 states and 1089 transitions. [2019-11-07 01:02:03,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 01:02:03,947 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 208 [2019-11-07 01:02:03,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:03,955 INFO L225 Difference]: With dead ends: 919 [2019-11-07 01:02:03,956 INFO L226 Difference]: Without dead ends: 916 [2019-11-07 01:02:03,959 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-07 01:02:03,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2019-11-07 01:02:04,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 910. [2019-11-07 01:02:04,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 910 states. [2019-11-07 01:02:04,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1074 transitions. [2019-11-07 01:02:04,021 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1074 transitions. Word has length 208 [2019-11-07 01:02:04,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:04,021 INFO L462 AbstractCegarLoop]: Abstraction has 910 states and 1074 transitions. [2019-11-07 01:02:04,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 01:02:04,022 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1074 transitions. [2019-11-07 01:02:04,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-11-07 01:02:04,026 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:04,026 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2019-11-07 01:02:04,027 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:04,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:04,027 INFO L82 PathProgramCache]: Analyzing trace with hash 426205906, now seen corresponding path program 1 times [2019-11-07 01:02:04,027 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:04,028 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155469642] [2019-11-07 01:02:04,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:04,357 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 47 proven. 32 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-11-07 01:02:04,358 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155469642] [2019-11-07 01:02:04,358 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695774358] [2019-11-07 01:02:04,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:02:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:04,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 1043 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-07 01:02:04,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:02:04,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 01:02:04,773 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 111 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-07 01:02:04,773 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:02:05,029 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 01:02:05,140 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 01:02:05,161 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 01:02:05,163 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 01:02:05,205 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 01:02:05,435 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 47 proven. 32 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-11-07 01:02:05,436 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1796308836] [2019-11-07 01:02:05,441 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 227 [2019-11-07 01:02:05,491 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 01:02:05,491 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 01:02:05,569 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-07 01:02:05,571 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-11-07 01:02:05,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:05,576 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-07 01:02:05,671 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-11-07 01:02:05,671 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-07 01:02:05,677 INFO L553 sIntCurrentIteration]: We unified 225 AI predicates to 225 [2019-11-07 01:02:05,677 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-07 01:02:05,678 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-07 01:02:05,678 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10, 10, 10] total 17 [2019-11-07 01:02:05,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379832425] [2019-11-07 01:02:05,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 01:02:05,680 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:05,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 01:02:05,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2019-11-07 01:02:05,680 INFO L87 Difference]: Start difference. First operand 910 states and 1074 transitions. Second operand 2 states. [2019-11-07 01:02:05,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:05,698 INFO L93 Difference]: Finished difference Result 910 states and 1074 transitions. [2019-11-07 01:02:05,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 01:02:05,699 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 226 [2019-11-07 01:02:05,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:05,700 INFO L225 Difference]: With dead ends: 910 [2019-11-07 01:02:05,701 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 01:02:05,703 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 443 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2019-11-07 01:02:05,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 01:02:05,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 01:02:05,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 01:02:05,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 01:02:05,704 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 226 [2019-11-07 01:02:05,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:05,705 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 01:02:05,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 01:02:05,705 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 01:02:05,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 01:02:05,910 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:02:05,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 01:02:06,246 INFO L443 ceAbstractionStarter]: For program point L123(lines 123 127) no Hoare annotation was computed. [2019-11-07 01:02:06,246 INFO L443 ceAbstractionStarter]: For program point L123-1(lines 123 127) no Hoare annotation was computed. [2019-11-07 01:02:06,246 INFO L443 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2019-11-07 01:02:06,246 INFO L443 ceAbstractionStarter]: For program point L117-2(lines 117 138) no Hoare annotation was computed. [2019-11-07 01:02:06,246 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 92 147) no Hoare annotation was computed. [2019-11-07 01:02:06,246 INFO L443 ceAbstractionStarter]: For program point L139(lines 116 140) no Hoare annotation was computed. [2019-11-07 01:02:06,246 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 92 147) no Hoare annotation was computed. [2019-11-07 01:02:06,247 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 92 147) no Hoare annotation was computed. [2019-11-07 01:02:06,247 INFO L443 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2019-11-07 01:02:06,247 INFO L443 ceAbstractionStarter]: For program point L193-1(line 193) no Hoare annotation was computed. [2019-11-07 01:02:06,247 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 148 207) no Hoare annotation was computed. [2019-11-07 01:02:06,247 INFO L443 ceAbstractionStarter]: For program point L180(lines 180 184) no Hoare annotation was computed. [2019-11-07 01:02:06,247 INFO L443 ceAbstractionStarter]: For program point L180-1(lines 180 184) no Hoare annotation was computed. [2019-11-07 01:02:06,247 INFO L443 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2019-11-07 01:02:06,248 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 148 207) no Hoare annotation was computed. [2019-11-07 01:02:06,248 INFO L443 ceAbstractionStarter]: For program point L174-2(lines 174 199) no Hoare annotation was computed. [2019-11-07 01:02:06,248 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 148 207) no Hoare annotation was computed. [2019-11-07 01:02:06,248 INFO L443 ceAbstractionStarter]: For program point L200(lines 173 201) no Hoare annotation was computed. [2019-11-07 01:02:06,248 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 729 735) the Hoare annotation is: true [2019-11-07 01:02:06,248 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 729 735) no Hoare annotation was computed. [2019-11-07 01:02:06,248 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 736 744) no Hoare annotation was computed. [2019-11-07 01:02:06,249 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 736 744) the Hoare annotation is: true [2019-11-07 01:02:06,249 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 736 744) no Hoare annotation was computed. [2019-11-07 01:02:06,249 INFO L446 ceAbstractionStarter]: At program point L865(line 865) the Hoare annotation is: true [2019-11-07 01:02:06,249 INFO L443 ceAbstractionStarter]: For program point L865-1(line 865) no Hoare annotation was computed. [2019-11-07 01:02:06,249 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 859 883) the Hoare annotation is: true [2019-11-07 01:02:06,249 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 859 883) no Hoare annotation was computed. [2019-11-07 01:02:06,249 INFO L446 ceAbstractionStarter]: At program point L873(line 873) the Hoare annotation is: true [2019-11-07 01:02:06,249 INFO L443 ceAbstractionStarter]: For program point L871(lines 871 877) no Hoare annotation was computed. [2019-11-07 01:02:06,249 INFO L446 ceAbstractionStarter]: At program point L869(line 869) the Hoare annotation is: true [2019-11-07 01:02:06,250 INFO L443 ceAbstractionStarter]: For program point L869-1(line 869) no Hoare annotation was computed. [2019-11-07 01:02:06,250 INFO L443 ceAbstractionStarter]: For program point L867(lines 867 880) no Hoare annotation was computed. [2019-11-07 01:02:06,250 INFO L443 ceAbstractionStarter]: For program point L867-1(lines 859 883) no Hoare annotation was computed. [2019-11-07 01:02:06,250 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 957 979) the Hoare annotation is: true [2019-11-07 01:02:06,250 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 957 979) no Hoare annotation was computed. [2019-11-07 01:02:06,250 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 957 979) no Hoare annotation was computed. [2019-11-07 01:02:06,250 INFO L446 ceAbstractionStarter]: At program point L969(line 969) the Hoare annotation is: true [2019-11-07 01:02:06,250 INFO L446 ceAbstractionStarter]: At program point L969-1(line 969) the Hoare annotation is: true [2019-11-07 01:02:06,251 INFO L443 ceAbstractionStarter]: For program point L967(lines 967 974) no Hoare annotation was computed. [2019-11-07 01:02:06,251 INFO L443 ceAbstractionStarter]: For program point L967-1(lines 967 974) no Hoare annotation was computed. [2019-11-07 01:02:06,251 INFO L443 ceAbstractionStarter]: For program point L965(line 965) no Hoare annotation was computed. [2019-11-07 01:02:06,251 INFO L446 ceAbstractionStarter]: At program point L964(line 964) the Hoare annotation is: true [2019-11-07 01:02:06,251 INFO L446 ceAbstractionStarter]: At program point L963(line 963) the Hoare annotation is: true [2019-11-07 01:02:06,251 INFO L446 ceAbstractionStarter]: At program point L963-1(line 963) the Hoare annotation is: true [2019-11-07 01:02:06,251 INFO L443 ceAbstractionStarter]: For program point L929(line 929) no Hoare annotation was computed. [2019-11-07 01:02:06,251 INFO L443 ceAbstractionStarter]: For program point L928(line 928) no Hoare annotation was computed. [2019-11-07 01:02:06,251 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 916 939) no Hoare annotation was computed. [2019-11-07 01:02:06,252 INFO L443 ceAbstractionStarter]: For program point L927(line 927) no Hoare annotation was computed. [2019-11-07 01:02:06,252 INFO L443 ceAbstractionStarter]: For program point L926(line 926) no Hoare annotation was computed. [2019-11-07 01:02:06,252 INFO L443 ceAbstractionStarter]: For program point L925(line 925) no Hoare annotation was computed. [2019-11-07 01:02:06,252 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 916 939) no Hoare annotation was computed. [2019-11-07 01:02:06,252 INFO L443 ceAbstractionStarter]: For program point L924(line 924) no Hoare annotation was computed. [2019-11-07 01:02:06,252 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 916 939) no Hoare annotation was computed. [2019-11-07 01:02:06,252 INFO L443 ceAbstractionStarter]: For program point L923(line 923) no Hoare annotation was computed. [2019-11-07 01:02:06,252 INFO L443 ceAbstractionStarter]: For program point L922(line 922) no Hoare annotation was computed. [2019-11-07 01:02:06,252 INFO L443 ceAbstractionStarter]: For program point L921(line 921) no Hoare annotation was computed. [2019-11-07 01:02:06,253 INFO L443 ceAbstractionStarter]: For program point L934(line 934) no Hoare annotation was computed. [2019-11-07 01:02:06,253 INFO L443 ceAbstractionStarter]: For program point L933(line 933) no Hoare annotation was computed. [2019-11-07 01:02:06,253 INFO L443 ceAbstractionStarter]: For program point L932(line 932) no Hoare annotation was computed. [2019-11-07 01:02:06,253 INFO L443 ceAbstractionStarter]: For program point L931(line 931) no Hoare annotation was computed. [2019-11-07 01:02:06,253 INFO L443 ceAbstractionStarter]: For program point L930(line 930) no Hoare annotation was computed. [2019-11-07 01:02:06,253 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 624 632) no Hoare annotation was computed. [2019-11-07 01:02:06,253 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 624 632) the Hoare annotation is: true [2019-11-07 01:02:06,253 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 624 632) no Hoare annotation was computed. [2019-11-07 01:02:06,253 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 688 706) the Hoare annotation is: true [2019-11-07 01:02:06,254 INFO L443 ceAbstractionStarter]: For program point L697(lines 697 701) no Hoare annotation was computed. [2019-11-07 01:02:06,254 INFO L446 ceAbstractionStarter]: At program point L695(line 695) the Hoare annotation is: true [2019-11-07 01:02:06,254 INFO L443 ceAbstractionStarter]: For program point L697-2(lines 697 701) no Hoare annotation was computed. [2019-11-07 01:02:06,254 INFO L443 ceAbstractionStarter]: For program point L695-1(line 695) no Hoare annotation was computed. [2019-11-07 01:02:06,254 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 688 706) no Hoare annotation was computed. [2019-11-07 01:02:06,254 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 688 706) no Hoare annotation was computed. [2019-11-07 01:02:06,254 INFO L443 ceAbstractionStarter]: For program point L640(lines 640 648) no Hoare annotation was computed. [2019-11-07 01:02:06,254 INFO L443 ceAbstractionStarter]: For program point L640-2(lines 640 648) no Hoare annotation was computed. [2019-11-07 01:02:06,254 INFO L443 ceAbstractionStarter]: For program point L663(line 663) no Hoare annotation was computed. [2019-11-07 01:02:06,255 INFO L443 ceAbstractionStarter]: For program point L663-1(line 663) no Hoare annotation was computed. [2019-11-07 01:02:06,255 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 633 668) no Hoare annotation was computed. [2019-11-07 01:02:06,255 INFO L443 ceAbstractionStarter]: For program point L652(lines 652 660) no Hoare annotation was computed. [2019-11-07 01:02:06,255 INFO L443 ceAbstractionStarter]: For program point L652-2(lines 652 660) no Hoare annotation was computed. [2019-11-07 01:02:06,255 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 633 668) no Hoare annotation was computed. [2019-11-07 01:02:06,255 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 633 668) no Hoare annotation was computed. [2019-11-07 01:02:06,255 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 722 728) no Hoare annotation was computed. [2019-11-07 01:02:06,255 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 722 728) the Hoare annotation is: true [2019-11-07 01:02:06,256 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 46 91) no Hoare annotation was computed. [2019-11-07 01:02:06,256 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 46 91) no Hoare annotation was computed. [2019-11-07 01:02:06,256 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 46 91) no Hoare annotation was computed. [2019-11-07 01:02:06,256 INFO L443 ceAbstractionStarter]: For program point L379(lines 379 386) no Hoare annotation was computed. [2019-11-07 01:02:06,256 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 359 404) no Hoare annotation was computed. [2019-11-07 01:02:06,256 INFO L443 ceAbstractionStarter]: For program point L373(lines 373 393) no Hoare annotation was computed. [2019-11-07 01:02:06,256 INFO L443 ceAbstractionStarter]: For program point L373-1(lines 373 393) no Hoare annotation was computed. [2019-11-07 01:02:06,256 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 359 404) no Hoare annotation was computed. [2019-11-07 01:02:06,256 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 359 404) no Hoare annotation was computed. [2019-11-07 01:02:06,256 INFO L446 ceAbstractionStarter]: At program point runTestENTRY(lines 947 956) the Hoare annotation is: true [2019-11-07 01:02:06,257 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 947 956) no Hoare annotation was computed. [2019-11-07 01:02:06,257 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 947 956) no Hoare annotation was computed. [2019-11-07 01:02:06,257 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 613 623) the Hoare annotation is: true [2019-11-07 01:02:06,257 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 613 623) no Hoare annotation was computed. [2019-11-07 01:02:06,257 INFO L446 ceAbstractionStarter]: At program point L618(line 618) the Hoare annotation is: true [2019-11-07 01:02:06,257 INFO L443 ceAbstractionStarter]: For program point L618-1(line 618) no Hoare annotation was computed. [2019-11-07 01:02:06,257 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 613 623) no Hoare annotation was computed. [2019-11-07 01:02:06,257 INFO L446 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 605 612) the Hoare annotation is: true [2019-11-07 01:02:06,257 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 605 612) no Hoare annotation was computed. [2019-11-07 01:02:06,258 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 605 612) no Hoare annotation was computed. [2019-11-07 01:02:06,258 INFO L443 ceAbstractionStarter]: For program point L839(lines 839 845) no Hoare annotation was computed. [2019-11-07 01:02:06,258 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 835 848) no Hoare annotation was computed. [2019-11-07 01:02:06,258 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 835 848) the Hoare annotation is: true [2019-11-07 01:02:06,258 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 835 848) no Hoare annotation was computed. [2019-11-07 01:02:06,258 INFO L443 ceAbstractionStarter]: For program point L578-1(line 578) no Hoare annotation was computed. [2019-11-07 01:02:06,258 INFO L443 ceAbstractionStarter]: For program point L576(lines 576 593) no Hoare annotation was computed. [2019-11-07 01:02:06,258 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 572 596) no Hoare annotation was computed. [2019-11-07 01:02:06,259 INFO L446 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 572 596) the Hoare annotation is: true [2019-11-07 01:02:06,259 INFO L446 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: true [2019-11-07 01:02:06,259 INFO L443 ceAbstractionStarter]: For program point L591-1(lines 572 596) no Hoare annotation was computed. [2019-11-07 01:02:06,259 INFO L446 ceAbstractionStarter]: At program point L586(line 586) the Hoare annotation is: true [2019-11-07 01:02:06,259 INFO L446 ceAbstractionStarter]: At program point L582(line 582) the Hoare annotation is: true [2019-11-07 01:02:06,259 INFO L443 ceAbstractionStarter]: For program point L580(lines 580 588) no Hoare annotation was computed. [2019-11-07 01:02:06,259 INFO L446 ceAbstractionStarter]: At program point L578(line 578) the Hoare annotation is: true [2019-11-07 01:02:06,259 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 512 518) no Hoare annotation was computed. [2019-11-07 01:02:06,259 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 512 518) the Hoare annotation is: true [2019-11-07 01:02:06,260 INFO L446 ceAbstractionStarter]: At program point testENTRY(lines 410 473) the Hoare annotation is: true [2019-11-07 01:02:06,260 INFO L446 ceAbstractionStarter]: At program point L442(line 442) the Hoare annotation is: true [2019-11-07 01:02:06,260 INFO L443 ceAbstractionStarter]: For program point L440(lines 440 446) no Hoare annotation was computed. [2019-11-07 01:02:06,260 INFO L443 ceAbstractionStarter]: For program point L440-1(lines 440 446) no Hoare annotation was computed. [2019-11-07 01:02:06,260 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 410 473) no Hoare annotation was computed. [2019-11-07 01:02:06,260 INFO L446 ceAbstractionStarter]: At program point L432(line 432) the Hoare annotation is: true [2019-11-07 01:02:06,260 INFO L446 ceAbstractionStarter]: At program point L463(lines 420 465) the Hoare annotation is: true [2019-11-07 01:02:06,260 INFO L443 ceAbstractionStarter]: For program point L430(lines 430 436) no Hoare annotation was computed. [2019-11-07 01:02:06,261 INFO L443 ceAbstractionStarter]: For program point L430-1(lines 430 436) no Hoare annotation was computed. [2019-11-07 01:02:06,261 INFO L443 ceAbstractionStarter]: For program point L422(lines 422 426) no Hoare annotation was computed. [2019-11-07 01:02:06,261 INFO L446 ceAbstractionStarter]: At program point L466(lines 419 467) the Hoare annotation is: true [2019-11-07 01:02:06,261 INFO L443 ceAbstractionStarter]: For program point L456(lines 456 460) no Hoare annotation was computed. [2019-11-07 01:02:06,261 INFO L446 ceAbstractionStarter]: At program point L456-2(lines 450 461) the Hoare annotation is: true [2019-11-07 01:02:06,261 INFO L443 ceAbstractionStarter]: For program point L421(lines 420 465) no Hoare annotation was computed. [2019-11-07 01:02:06,261 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 410 473) no Hoare annotation was computed. [2019-11-07 01:02:06,261 INFO L443 ceAbstractionStarter]: For program point L450(lines 450 461) no Hoare annotation was computed. [2019-11-07 01:02:06,262 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 313 358) no Hoare annotation was computed. [2019-11-07 01:02:06,262 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 313 358) no Hoare annotation was computed. [2019-11-07 01:02:06,262 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 313 358) no Hoare annotation was computed. [2019-11-07 01:02:06,262 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 340) no Hoare annotation was computed. [2019-11-07 01:02:06,262 INFO L443 ceAbstractionStarter]: For program point L327(lines 327 347) no Hoare annotation was computed. [2019-11-07 01:02:06,262 INFO L443 ceAbstractionStarter]: For program point L327-1(lines 327 347) no Hoare annotation was computed. [2019-11-07 01:02:06,262 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 849 857) no Hoare annotation was computed. [2019-11-07 01:02:06,262 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 849 857) the Hoare annotation is: true [2019-11-07 01:02:06,262 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 849 857) no Hoare annotation was computed. [2019-11-07 01:02:06,262 INFO L443 ceAbstractionStarter]: For program point L811(lines 811 819) no Hoare annotation was computed. [2019-11-07 01:02:06,263 INFO L443 ceAbstractionStarter]: For program point L811-2(lines 811 819) no Hoare annotation was computed. [2019-11-07 01:02:06,263 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 803 825) no Hoare annotation was computed. [2019-11-07 01:02:06,263 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 803 825) no Hoare annotation was computed. [2019-11-07 01:02:06,263 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 803 825) no Hoare annotation was computed. [2019-11-07 01:02:06,263 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 297) no Hoare annotation was computed. [2019-11-07 01:02:06,263 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 210 312) no Hoare annotation was computed. [2019-11-07 01:02:06,263 INFO L443 ceAbstractionStarter]: For program point L275(line 275) no Hoare annotation was computed. [2019-11-07 01:02:06,263 INFO L443 ceAbstractionStarter]: For program point L275-1(line 275) no Hoare annotation was computed. [2019-11-07 01:02:06,263 INFO L443 ceAbstractionStarter]: For program point L234(lines 234 238) no Hoare annotation was computed. [2019-11-07 01:02:06,264 INFO L443 ceAbstractionStarter]: For program point L298(lines 298 309) no Hoare annotation was computed. [2019-11-07 01:02:06,264 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 210 312) no Hoare annotation was computed. [2019-11-07 01:02:06,264 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 265) no Hoare annotation was computed. [2019-11-07 01:02:06,264 INFO L443 ceAbstractionStarter]: For program point L259-2(lines 259 279) no Hoare annotation was computed. [2019-11-07 01:02:06,264 INFO L443 ceAbstractionStarter]: For program point L280(lines 258 281) no Hoare annotation was computed. [2019-11-07 01:02:06,264 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 210 312) no Hoare annotation was computed. [2019-11-07 01:02:06,264 INFO L443 ceAbstractionStarter]: For program point L239(lines 239 255) no Hoare annotation was computed. [2019-11-07 01:02:06,264 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 306) no Hoare annotation was computed. [2019-11-07 01:02:06,264 INFO L443 ceAbstractionStarter]: For program point L260(lines 259 279) no Hoare annotation was computed. [2019-11-07 01:02:06,265 INFO L443 ceAbstractionStarter]: For program point L291(line 291) no Hoare annotation was computed. [2019-11-07 01:02:06,265 INFO L443 ceAbstractionStarter]: For program point L291-1(line 291) no Hoare annotation was computed. [2019-11-07 01:02:06,265 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 712 721) no Hoare annotation was computed. [2019-11-07 01:02:06,265 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 712 721) no Hoare annotation was computed. [2019-11-07 01:02:06,265 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 712 721) no Hoare annotation was computed. [2019-11-07 01:02:06,265 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-07 01:02:06,265 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (< 1 ~waterLevel~0) (< |old(~waterLevel~0)| 2)) (or (< 0 ~waterLevel~0) (< |old(~waterLevel~0)| 1))) [2019-11-07 01:02:06,266 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 01:02:06,266 INFO L443 ceAbstractionStarter]: For program point activatePumpFINAL(lines 597 604) no Hoare annotation was computed. [2019-11-07 01:02:06,266 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 597 604) no Hoare annotation was computed. [2019-11-07 01:02:06,266 INFO L446 ceAbstractionStarter]: At program point activatePumpENTRY(lines 597 604) the Hoare annotation is: true [2019-11-07 01:02:06,266 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 669 687) no Hoare annotation was computed. [2019-11-07 01:02:06,266 INFO L443 ceAbstractionStarter]: For program point L678(lines 678 682) no Hoare annotation was computed. [2019-11-07 01:02:06,266 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 669 687) the Hoare annotation is: true [2019-11-07 01:02:06,266 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 669 687) no Hoare annotation was computed. [2019-11-07 01:02:06,267 INFO L446 ceAbstractionStarter]: At program point L676(line 676) the Hoare annotation is: true [2019-11-07 01:02:06,267 INFO L443 ceAbstractionStarter]: For program point L678-2(lines 678 682) no Hoare annotation was computed. [2019-11-07 01:02:06,267 INFO L443 ceAbstractionStarter]: For program point L676-1(line 676) no Hoare annotation was computed. [2019-11-07 01:02:06,267 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 826 834) the Hoare annotation is: true [2019-11-07 01:02:06,267 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 826 834) no Hoare annotation was computed. [2019-11-07 01:02:06,267 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 826 834) no Hoare annotation was computed. [2019-11-07 01:02:06,267 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-11-07 01:02:06,267 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-11-07 01:02:06,267 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-11-07 01:02:06,267 INFO L443 ceAbstractionStarter]: For program point L786-1(lines 782 793) no Hoare annotation was computed. [2019-11-07 01:02:06,268 INFO L446 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 782 793) the Hoare annotation is: true [2019-11-07 01:02:06,268 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 782 793) no Hoare annotation was computed. [2019-11-07 01:02:06,268 INFO L446 ceAbstractionStarter]: At program point L501(line 501) the Hoare annotation is: true [2019-11-07 01:02:06,268 INFO L446 ceAbstractionStarter]: At program point L499(lines 499 505) the Hoare annotation is: true [2019-11-07 01:02:06,268 INFO L446 ceAbstractionStarter]: At program point timeShiftENTRY(lines 488 511) the Hoare annotation is: true [2019-11-07 01:02:06,268 INFO L446 ceAbstractionStarter]: At program point L494(line 494) the Hoare annotation is: true [2019-11-07 01:02:06,268 INFO L443 ceAbstractionStarter]: For program point L492(lines 491 510) no Hoare annotation was computed. [2019-11-07 01:02:06,268 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 488 511) no Hoare annotation was computed. [2019-11-07 01:02:06,269 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 488 511) no Hoare annotation was computed. [2019-11-07 01:02:06,269 INFO L443 ceAbstractionStarter]: For program point L897(line 897) no Hoare annotation was computed. [2019-11-07 01:02:06,269 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 886 915) no Hoare annotation was computed. [2019-11-07 01:02:06,269 INFO L446 ceAbstractionStarter]: At program point L896-2(lines 896 910) the Hoare annotation is: true [2019-11-07 01:02:06,269 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 886 915) the Hoare annotation is: true [2019-11-07 01:02:06,269 INFO L446 ceAbstractionStarter]: At program point L892(line 892) the Hoare annotation is: true [2019-11-07 01:02:06,269 INFO L443 ceAbstractionStarter]: For program point L892-1(line 892) no Hoare annotation was computed. [2019-11-07 01:02:06,269 INFO L446 ceAbstractionStarter]: At program point L911(lines 886 915) the Hoare annotation is: true [2019-11-07 01:02:06,270 INFO L443 ceAbstractionStarter]: For program point L907(line 907) no Hoare annotation was computed. [2019-11-07 01:02:06,270 INFO L443 ceAbstractionStarter]: For program point L900(lines 900 904) no Hoare annotation was computed. [2019-11-07 01:02:06,270 INFO L446 ceAbstractionStarter]: At program point L900-1(lines 900 904) the Hoare annotation is: true [2019-11-07 01:02:06,270 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 794 802) the Hoare annotation is: true [2019-11-07 01:02:06,270 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 794 802) no Hoare annotation was computed. [2019-11-07 01:02:06,270 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 794 802) no Hoare annotation was computed. [2019-11-07 01:02:06,270 INFO L446 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 758 769) the Hoare annotation is: true [2019-11-07 01:02:06,270 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 758 769) no Hoare annotation was computed. [2019-11-07 01:02:06,270 INFO L443 ceAbstractionStarter]: For program point L762-1(lines 758 769) no Hoare annotation was computed. [2019-11-07 01:02:06,271 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 940 946) no Hoare annotation was computed. [2019-11-07 01:02:06,271 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 940 946) the Hoare annotation is: true [2019-11-07 01:02:06,271 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 01:02:06,271 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-11-07 01:02:06,271 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 01:02:06,272 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 01:02:06,272 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 520 544) the Hoare annotation is: true [2019-11-07 01:02:06,272 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 520 544) no Hoare annotation was computed. [2019-11-07 01:02:06,272 INFO L446 ceAbstractionStarter]: At program point L539(line 539) the Hoare annotation is: true [2019-11-07 01:02:06,272 INFO L443 ceAbstractionStarter]: For program point L539-1(lines 520 544) no Hoare annotation was computed. [2019-11-07 01:02:06,272 INFO L446 ceAbstractionStarter]: At program point L534(line 534) the Hoare annotation is: true [2019-11-07 01:02:06,272 INFO L446 ceAbstractionStarter]: At program point L530(line 530) the Hoare annotation is: true [2019-11-07 01:02:06,272 INFO L443 ceAbstractionStarter]: For program point L528(lines 528 536) no Hoare annotation was computed. [2019-11-07 01:02:06,272 INFO L446 ceAbstractionStarter]: At program point L526(line 526) the Hoare annotation is: true [2019-11-07 01:02:06,272 INFO L443 ceAbstractionStarter]: For program point L526-1(line 526) no Hoare annotation was computed. [2019-11-07 01:02:06,273 INFO L443 ceAbstractionStarter]: For program point L524(lines 524 541) no Hoare annotation was computed. [2019-11-07 01:02:06,273 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 770 781) no Hoare annotation was computed. [2019-11-07 01:02:06,273 INFO L443 ceAbstractionStarter]: For program point L774-1(lines 770 781) no Hoare annotation was computed. [2019-11-07 01:02:06,273 INFO L446 ceAbstractionStarter]: At program point waterRiseENTRY(lines 770 781) the Hoare annotation is: true [2019-11-07 01:02:06,273 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 746 753) no Hoare annotation was computed. [2019-11-07 01:02:06,273 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 750) no Hoare annotation was computed. [2019-11-07 01:02:06,273 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 746 753) the Hoare annotation is: true [2019-11-07 01:02:06,273 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 746 753) no Hoare annotation was computed. [2019-11-07 01:02:06,273 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 546 570) no Hoare annotation was computed. [2019-11-07 01:02:06,274 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 546 570) the Hoare annotation is: true [2019-11-07 01:02:06,274 INFO L446 ceAbstractionStarter]: At program point L565(line 565) the Hoare annotation is: true [2019-11-07 01:02:06,274 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 546 570) no Hoare annotation was computed. [2019-11-07 01:02:06,274 INFO L446 ceAbstractionStarter]: At program point L560(line 560) the Hoare annotation is: true [2019-11-07 01:02:06,274 INFO L446 ceAbstractionStarter]: At program point L556(line 556) the Hoare annotation is: true [2019-11-07 01:02:06,274 INFO L443 ceAbstractionStarter]: For program point L554(lines 554 562) no Hoare annotation was computed. [2019-11-07 01:02:06,274 INFO L446 ceAbstractionStarter]: At program point L552(line 552) the Hoare annotation is: true [2019-11-07 01:02:06,274 INFO L443 ceAbstractionStarter]: For program point L552-1(line 552) no Hoare annotation was computed. [2019-11-07 01:02:06,274 INFO L443 ceAbstractionStarter]: For program point L550(lines 550 567) no Hoare annotation was computed. [2019-11-07 01:02:06,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:02:06 BoogieIcfgContainer [2019-11-07 01:02:06,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 01:02:06,286 INFO L168 Benchmark]: Toolchain (without parser) took 14028.12 ms. Allocated memory was 150.5 MB in the beginning and 439.4 MB in the end (delta: 288.9 MB). Free memory was 106.3 MB in the beginning and 182.0 MB in the end (delta: -75.7 MB). Peak memory consumption was 213.2 MB. Max. memory is 7.1 GB. [2019-11-07 01:02:06,287 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 150.5 MB. Free memory was 125.5 MB in the beginning and 125.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 01:02:06,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.05 ms. Allocated memory was 150.5 MB in the beginning and 205.5 MB in the end (delta: 55.1 MB). Free memory was 106.1 MB in the beginning and 171.0 MB in the end (delta: -64.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-11-07 01:02:06,288 INFO L168 Benchmark]: Boogie Preprocessor took 104.04 ms. Allocated memory is still 205.5 MB. Free memory was 171.0 MB in the beginning and 166.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2019-11-07 01:02:06,289 INFO L168 Benchmark]: RCFGBuilder took 1309.16 ms. Allocated memory was 205.5 MB in the beginning and 229.6 MB in the end (delta: 24.1 MB). Free memory was 166.3 MB in the beginning and 175.7 MB in the end (delta: -9.4 MB). Peak memory consumption was 70.4 MB. Max. memory is 7.1 GB. [2019-11-07 01:02:06,290 INFO L168 Benchmark]: TraceAbstraction took 11936.38 ms. Allocated memory was 229.6 MB in the beginning and 439.4 MB in the end (delta: 209.7 MB). Free memory was 175.7 MB in the beginning and 182.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 203.5 MB. Max. memory is 7.1 GB. [2019-11-07 01:02:06,293 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 150.5 MB. Free memory was 125.5 MB in the beginning and 125.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 674.05 ms. Allocated memory was 150.5 MB in the beginning and 205.5 MB in the end (delta: 55.1 MB). Free memory was 106.1 MB in the beginning and 171.0 MB in the end (delta: -64.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.04 ms. Allocated memory is still 205.5 MB. Free memory was 171.0 MB in the beginning and 166.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1309.16 ms. Allocated memory was 205.5 MB in the beginning and 229.6 MB in the end (delta: 24.1 MB). Free memory was 166.3 MB in the beginning and 175.7 MB in the end (delta: -9.4 MB). Peak memory consumption was 70.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11936.38 ms. Allocated memory was 229.6 MB in the beginning and 439.4 MB in the end (delta: 209.7 MB). Free memory was 175.7 MB in the beginning and 182.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 203.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 750]: 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 - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 886]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 896]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 245 locations, 1 error locations. Result: SAFE, OverallTime: 11.8s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 1865 SDtfs, 1447 SDslu, 4768 SDs, 0 SdLazy, 2617 SolverSat, 511 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1371 GetRequests, 1246 SyntacticMatches, 20 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=910occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 126 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 66 LocationsWithAnnotation, 1630 PreInvPairs, 1631 NumberOfFragments, 83 HoareAnnotationTreeSize, 1630 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 66 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1954 NumberOfCodeBlocks, 1954 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2558 ConstructedInterpolants, 0 QuantifiedInterpolants, 634223 SizeOfPredicates, 20 NumberOfNonLiveVariables, 3531 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 19 InterpolantComputations, 10 PerfectInterpolantSequences, 717/813 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 136, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 0.7288888888888889, AVG_WEAKENED_CONJUNCTS: 0.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...