/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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:32:12,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:32:12,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:32:12,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:32:12,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:32:12,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:32:12,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:32:12,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:32:12,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:32:12,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:32:12,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:32:12,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:32:12,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:32:12,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:32:12,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:32:12,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:32:12,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:32:12,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:32:12,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:32:12,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:32:12,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:32:12,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:32:12,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:32:12,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:32:12,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:32:12,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:32:12,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:32:12,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:32:12,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:32:12,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:32:12,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:32:12,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:32:12,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:32:12,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:32:12,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:32:12,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:32:12,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:32:12,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:32:12,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:32:12,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:32:12,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:32:12,209 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 04:32:12,231 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:32:12,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:32:12,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:32:12,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:32:12,236 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:32:12,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:32:12,236 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:32:12,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:32:12,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:32:12,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:32:12,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:32:12,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:32:12,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:32:12,239 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:32:12,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:32:12,239 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:32:12,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:32:12,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:32:12,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:32:12,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:32:12,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:32:12,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:32:12,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:32:12,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:32:12,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:32:12,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:32:12,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:32:12,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:32:12,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:32:12,552 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:32:12,565 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:32:12,569 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:32:12,570 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:32:12,571 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:32:12,571 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product57.cil.c [2019-11-07 04:32:12,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aacaa72b8/2b8b1fd65a7e4425a395fdd141e12853/FLAG03cb2cf79 [2019-11-07 04:32:13,164 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:32:13,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product57.cil.c [2019-11-07 04:32:13,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aacaa72b8/2b8b1fd65a7e4425a395fdd141e12853/FLAG03cb2cf79 [2019-11-07 04:32:13,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aacaa72b8/2b8b1fd65a7e4425a395fdd141e12853 [2019-11-07 04:32:13,459 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:32:13,461 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:32:13,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:32:13,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:32:13,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:32:13,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:32:13" (1/1) ... [2019-11-07 04:32:13,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e5aa86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:13, skipping insertion in model container [2019-11-07 04:32:13,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:32:13" (1/1) ... [2019-11-07 04:32:13,477 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:32:13,524 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:32:14,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:32:14,057 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:32:14,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:32:14,220 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:32:14,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:14 WrapperNode [2019-11-07 04:32:14,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:32:14,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:32:14,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:32:14,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:32:14,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:14" (1/1) ... [2019-11-07 04:32:14,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:14" (1/1) ... [2019-11-07 04:32:14,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:14" (1/1) ... [2019-11-07 04:32:14,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:14" (1/1) ... [2019-11-07 04:32:14,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:14" (1/1) ... [2019-11-07 04:32:14,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:14" (1/1) ... [2019-11-07 04:32:14,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:14" (1/1) ... [2019-11-07 04:32:14,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:32:14,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:32:14,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:32:14,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:32:14,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:14" (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 04:32:14,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:32:14,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:32:14,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:32:14,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:32:14,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:32:14,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:32:14,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:32:14,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:32:14,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:32:14,378 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-07 04:32:14,378 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-07 04:32:14,378 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-07 04:32:14,378 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-07 04:32:14,378 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-07 04:32:14,379 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-07 04:32:14,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-07 04:32:14,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-07 04:32:14,379 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:32:14,379 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:32:14,379 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:32:14,380 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:32:14,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-11-07 04:32:14,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:32:14,380 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:32:14,380 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-07 04:32:14,380 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:32:14,381 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-07 04:32:14,381 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-11-07 04:32:14,381 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-07 04:32:14,381 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-07 04:32:14,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-07 04:32:14,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-07 04:32:14,381 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-07 04:32:14,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-07 04:32:14,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-07 04:32:14,382 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:32:14,382 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:32:14,382 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:32:14,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:32:14,382 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:32:14,382 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:32:14,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:32:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:32:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:32:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:32:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:32:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:32:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:32:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:32:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:32:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:32:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:32:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:32:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:32:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:32:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:32:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:32:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:32:14,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:32:14,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:32:14,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:32:14,385 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-07 04:32:14,385 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-07 04:32:14,385 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-07 04:32:14,385 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-07 04:32:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-07 04:32:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-07 04:32:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-07 04:32:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-07 04:32:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:32:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:32:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:32:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:32:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:32:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-07 04:32:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-11-07 04:32:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:32:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-07 04:32:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-07 04:32:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-07 04:32:14,388 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-07 04:32:14,388 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-07 04:32:14,388 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-07 04:32:14,388 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:32:14,388 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-07 04:32:14,388 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-11-07 04:32:14,388 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-07 04:32:14,389 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:32:14,389 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:32:14,389 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:32:14,389 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:32:14,389 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:32:14,389 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:32:14,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:32:14,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:32:14,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:32:16,072 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:32:16,073 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 04:32:16,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:32:16 BoogieIcfgContainer [2019-11-07 04:32:16,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:32:16,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:32:16,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:32:16,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:32:16,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:32:13" (1/3) ... [2019-11-07 04:32:16,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a04d094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:32:16, skipping insertion in model container [2019-11-07 04:32:16,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:32:14" (2/3) ... [2019-11-07 04:32:16,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a04d094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:32:16, skipping insertion in model container [2019-11-07 04:32:16,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:32:16" (3/3) ... [2019-11-07 04:32:16,085 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product57.cil.c [2019-11-07 04:32:16,096 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:32:16,107 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:32:16,119 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:32:16,153 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:32:16,153 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:32:16,153 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:32:16,154 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:32:16,154 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:32:16,154 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:32:16,154 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:32:16,155 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:32:16,183 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2019-11-07 04:32:16,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-07 04:32:16,198 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:16,199 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 04:32:16,205 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:16,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:16,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1867045480, now seen corresponding path program 1 times [2019-11-07 04:32:16,222 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:16,223 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304097851] [2019-11-07 04:32:16,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:16,641 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 04:32:16,642 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304097851] [2019-11-07 04:32:16,643 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:16,643 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:32:16,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387894022] [2019-11-07 04:32:16,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:32:16,652 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:16,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:32:16,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:32:16,668 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 2 states. [2019-11-07 04:32:16,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:16,741 INFO L93 Difference]: Finished difference Result 243 states and 290 transitions. [2019-11-07 04:32:16,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:32:16,750 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 47 [2019-11-07 04:32:16,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:16,763 INFO L225 Difference]: With dead ends: 243 [2019-11-07 04:32:16,763 INFO L226 Difference]: Without dead ends: 122 [2019-11-07 04:32:16,768 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 04:32:16,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-11-07 04:32:16,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-11-07 04:32:16,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-11-07 04:32:16,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 139 transitions. [2019-11-07 04:32:16,834 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 139 transitions. Word has length 47 [2019-11-07 04:32:16,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:16,835 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 139 transitions. [2019-11-07 04:32:16,835 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:32:16,836 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 139 transitions. [2019-11-07 04:32:16,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-07 04:32:16,839 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:16,840 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] [2019-11-07 04:32:16,840 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:16,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:16,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1813056017, now seen corresponding path program 1 times [2019-11-07 04:32:16,841 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:16,841 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575350868] [2019-11-07 04:32:16,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:16,972 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 04:32:16,973 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575350868] [2019-11-07 04:32:16,973 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:16,973 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:32:16,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280197676] [2019-11-07 04:32:16,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:32:16,976 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:16,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:32:16,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:32:16,977 INFO L87 Difference]: Start difference. First operand 122 states and 139 transitions. Second operand 3 states. [2019-11-07 04:32:17,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:17,001 INFO L93 Difference]: Finished difference Result 201 states and 229 transitions. [2019-11-07 04:32:17,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:32:17,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2019-11-07 04:32:17,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:17,005 INFO L225 Difference]: With dead ends: 201 [2019-11-07 04:32:17,005 INFO L226 Difference]: Without dead ends: 114 [2019-11-07 04:32:17,007 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 04:32:17,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-11-07 04:32:17,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-11-07 04:32:17,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-11-07 04:32:17,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 128 transitions. [2019-11-07 04:32:17,024 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 128 transitions. Word has length 48 [2019-11-07 04:32:17,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:17,025 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 128 transitions. [2019-11-07 04:32:17,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:32:17,025 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 128 transitions. [2019-11-07 04:32:17,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-11-07 04:32:17,028 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:17,028 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] [2019-11-07 04:32:17,028 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:17,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:17,029 INFO L82 PathProgramCache]: Analyzing trace with hash 778514521, now seen corresponding path program 1 times [2019-11-07 04:32:17,029 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:17,029 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391085527] [2019-11-07 04:32:17,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:17,308 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 04:32:17,308 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391085527] [2019-11-07 04:32:17,308 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:17,309 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:32:17,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785629734] [2019-11-07 04:32:17,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:32:17,310 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:17,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:32:17,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:32:17,310 INFO L87 Difference]: Start difference. First operand 114 states and 128 transitions. Second operand 7 states. [2019-11-07 04:32:17,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:17,683 INFO L93 Difference]: Finished difference Result 206 states and 235 transitions. [2019-11-07 04:32:17,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:32:17,684 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-11-07 04:32:17,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:17,687 INFO L225 Difference]: With dead ends: 206 [2019-11-07 04:32:17,688 INFO L226 Difference]: Without dead ends: 114 [2019-11-07 04:32:17,690 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:32:17,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-11-07 04:32:17,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-11-07 04:32:17,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-11-07 04:32:17,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 127 transitions. [2019-11-07 04:32:17,709 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 127 transitions. Word has length 50 [2019-11-07 04:32:17,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:17,709 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 127 transitions. [2019-11-07 04:32:17,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:32:17,709 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 127 transitions. [2019-11-07 04:32:17,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-07 04:32:17,715 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:17,715 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] [2019-11-07 04:32:17,715 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:17,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:17,717 INFO L82 PathProgramCache]: Analyzing trace with hash 349983145, now seen corresponding path program 1 times [2019-11-07 04:32:17,717 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:17,717 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550458234] [2019-11-07 04:32:17,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:17,885 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 04:32:17,886 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550458234] [2019-11-07 04:32:17,886 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:17,886 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:32:17,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420381276] [2019-11-07 04:32:17,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:32:17,887 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:17,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:32:17,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:32:17,888 INFO L87 Difference]: Start difference. First operand 114 states and 127 transitions. Second operand 5 states. [2019-11-07 04:32:18,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:18,429 INFO L93 Difference]: Finished difference Result 300 states and 349 transitions. [2019-11-07 04:32:18,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:32:18,430 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2019-11-07 04:32:18,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:18,432 INFO L225 Difference]: With dead ends: 300 [2019-11-07 04:32:18,433 INFO L226 Difference]: Without dead ends: 208 [2019-11-07 04:32:18,434 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 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 04:32:18,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2019-11-07 04:32:18,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 193. [2019-11-07 04:32:18,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-11-07 04:32:18,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 213 transitions. [2019-11-07 04:32:18,475 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 213 transitions. Word has length 63 [2019-11-07 04:32:18,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:18,476 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 213 transitions. [2019-11-07 04:32:18,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:32:18,476 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 213 transitions. [2019-11-07 04:32:18,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-11-07 04:32:18,480 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:18,480 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] [2019-11-07 04:32:18,482 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:18,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:18,482 INFO L82 PathProgramCache]: Analyzing trace with hash -2023526779, now seen corresponding path program 1 times [2019-11-07 04:32:18,483 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:18,483 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745813440] [2019-11-07 04:32:18,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:18,634 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 04:32:18,634 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745813440] [2019-11-07 04:32:18,635 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:18,635 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 04:32:18,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139315639] [2019-11-07 04:32:18,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 04:32:18,636 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:18,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 04:32:18,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:32:18,637 INFO L87 Difference]: Start difference. First operand 193 states and 213 transitions. Second operand 6 states. [2019-11-07 04:32:18,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:18,823 INFO L93 Difference]: Finished difference Result 471 states and 536 transitions. [2019-11-07 04:32:18,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:32:18,825 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2019-11-07 04:32:18,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:18,830 INFO L225 Difference]: With dead ends: 471 [2019-11-07 04:32:18,830 INFO L226 Difference]: Without dead ends: 300 [2019-11-07 04:32:18,831 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 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 04:32:18,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-11-07 04:32:18,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 290. [2019-11-07 04:32:18,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2019-11-07 04:32:18,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 324 transitions. [2019-11-07 04:32:18,864 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 324 transitions. Word has length 72 [2019-11-07 04:32:18,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:18,864 INFO L462 AbstractCegarLoop]: Abstraction has 290 states and 324 transitions. [2019-11-07 04:32:18,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 04:32:18,865 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 324 transitions. [2019-11-07 04:32:18,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-11-07 04:32:18,866 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:18,867 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] [2019-11-07 04:32:18,867 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:18,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:18,867 INFO L82 PathProgramCache]: Analyzing trace with hash 2006404444, now seen corresponding path program 1 times [2019-11-07 04:32:18,867 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:18,868 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22067338] [2019-11-07 04:32:18,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:19,143 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 04:32:19,144 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22067338] [2019-11-07 04:32:19,144 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:19,144 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-07 04:32:19,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750389777] [2019-11-07 04:32:19,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 04:32:19,145 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:19,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 04:32:19,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-07 04:32:19,146 INFO L87 Difference]: Start difference. First operand 290 states and 324 transitions. Second operand 14 states. [2019-11-07 04:32:19,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:19,563 INFO L93 Difference]: Finished difference Result 575 states and 661 transitions. [2019-11-07 04:32:19,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-07 04:32:19,564 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 75 [2019-11-07 04:32:19,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:19,568 INFO L225 Difference]: With dead ends: 575 [2019-11-07 04:32:19,568 INFO L226 Difference]: Without dead ends: 404 [2019-11-07 04:32:19,569 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2019-11-07 04:32:19,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2019-11-07 04:32:19,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 384. [2019-11-07 04:32:19,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2019-11-07 04:32:19,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 436 transitions. [2019-11-07 04:32:19,601 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 436 transitions. Word has length 75 [2019-11-07 04:32:19,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:19,601 INFO L462 AbstractCegarLoop]: Abstraction has 384 states and 436 transitions. [2019-11-07 04:32:19,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 04:32:19,602 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 436 transitions. [2019-11-07 04:32:19,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-11-07 04:32:19,604 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:19,604 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:32:19,604 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:19,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:19,605 INFO L82 PathProgramCache]: Analyzing trace with hash -762416742, now seen corresponding path program 1 times [2019-11-07 04:32:19,605 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:19,605 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383772411] [2019-11-07 04:32:19,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:19,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 04:32:19,756 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383772411] [2019-11-07 04:32:19,756 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548854419] [2019-11-07 04:32:19,757 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 04:32:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:19,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-07 04:32:19,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:32:20,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:32:20,116 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:32:20,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 04:32:20,651 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 04:32:20,651 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9] total 19 [2019-11-07 04:32:20,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980083565] [2019-11-07 04:32:20,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:32:20,652 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:20,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:32:20,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:32:20,653 INFO L87 Difference]: Start difference. First operand 384 states and 436 transitions. Second operand 8 states. [2019-11-07 04:32:21,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:21,186 INFO L93 Difference]: Finished difference Result 1089 states and 1264 transitions. [2019-11-07 04:32:21,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:32:21,188 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2019-11-07 04:32:21,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:21,197 INFO L225 Difference]: With dead ends: 1089 [2019-11-07 04:32:21,197 INFO L226 Difference]: Without dead ends: 727 [2019-11-07 04:32:21,199 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:32:21,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2019-11-07 04:32:21,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 712. [2019-11-07 04:32:21,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2019-11-07 04:32:21,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 812 transitions. [2019-11-07 04:32:21,283 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 812 transitions. Word has length 85 [2019-11-07 04:32:21,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:21,284 INFO L462 AbstractCegarLoop]: Abstraction has 712 states and 812 transitions. [2019-11-07 04:32:21,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:32:21,287 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 812 transitions. [2019-11-07 04:32:21,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-07 04:32:21,292 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:21,292 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:32:21,507 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:32:21,507 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:21,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:21,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1293636771, now seen corresponding path program 1 times [2019-11-07 04:32:21,509 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:21,509 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140037596] [2019-11-07 04:32:21,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 04:32:21,711 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140037596] [2019-11-07 04:32:21,712 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:21,712 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:32:21,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816920332] [2019-11-07 04:32:21,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:32:21,715 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:21,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:32:21,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:32:21,716 INFO L87 Difference]: Start difference. First operand 712 states and 812 transitions. Second operand 12 states. [2019-11-07 04:32:23,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:23,541 INFO L93 Difference]: Finished difference Result 1417 states and 1651 transitions. [2019-11-07 04:32:23,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-07 04:32:23,541 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2019-11-07 04:32:23,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:23,547 INFO L225 Difference]: With dead ends: 1417 [2019-11-07 04:32:23,547 INFO L226 Difference]: Without dead ends: 1055 [2019-11-07 04:32:23,549 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2019-11-07 04:32:23,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2019-11-07 04:32:23,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1021. [2019-11-07 04:32:23,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2019-11-07 04:32:23,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1161 transitions. [2019-11-07 04:32:23,611 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1161 transitions. Word has length 88 [2019-11-07 04:32:23,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:23,611 INFO L462 AbstractCegarLoop]: Abstraction has 1021 states and 1161 transitions. [2019-11-07 04:32:23,611 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:32:23,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1161 transitions. [2019-11-07 04:32:23,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-07 04:32:23,614 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:23,614 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:32:23,614 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:23,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:23,615 INFO L82 PathProgramCache]: Analyzing trace with hash 2134866946, now seen corresponding path program 1 times [2019-11-07 04:32:23,615 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:23,615 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133543717] [2019-11-07 04:32:23,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:32:23,728 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133543717] [2019-11-07 04:32:23,728 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:32:23,728 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:32:23,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867866701] [2019-11-07 04:32:23,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:32:23,729 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:23,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:32:23,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:32:23,730 INFO L87 Difference]: Start difference. First operand 1021 states and 1161 transitions. Second operand 10 states. [2019-11-07 04:32:24,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:24,039 INFO L93 Difference]: Finished difference Result 2032 states and 2313 transitions. [2019-11-07 04:32:24,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 04:32:24,040 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2019-11-07 04:32:24,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:24,046 INFO L225 Difference]: With dead ends: 2032 [2019-11-07 04:32:24,046 INFO L226 Difference]: Without dead ends: 1033 [2019-11-07 04:32:24,049 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-07 04:32:24,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2019-11-07 04:32:24,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 961. [2019-11-07 04:32:24,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2019-11-07 04:32:24,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1044 transitions. [2019-11-07 04:32:24,102 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1044 transitions. Word has length 88 [2019-11-07 04:32:24,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:24,103 INFO L462 AbstractCegarLoop]: Abstraction has 961 states and 1044 transitions. [2019-11-07 04:32:24,103 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:32:24,103 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1044 transitions. [2019-11-07 04:32:24,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-11-07 04:32:24,107 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:24,107 INFO L410 BasicCegarLoop]: trace histogram [3, 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] [2019-11-07 04:32:24,107 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:24,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:24,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1722605992, now seen corresponding path program 1 times [2019-11-07 04:32:24,108 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:24,108 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576360633] [2019-11-07 04:32:24,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:24,206 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 04:32:24,206 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576360633] [2019-11-07 04:32:24,206 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306758316] [2019-11-07 04:32:24,206 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 04:32:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:24,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 32 conjunts are in the unsatisfiable core [2019-11-07 04:32:24,458 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:32:24,587 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-07 04:32:24,588 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:32:24,802 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:32:24,803 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:32:24,859 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:32:24,920 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:32:24,960 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:32:25,042 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-11-07 04:32:25,042 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 04:32:25,043 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 21 [2019-11-07 04:32:25,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840503809] [2019-11-07 04:32:25,043 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 04:32:25,044 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:25,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 04:32:25,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2019-11-07 04:32:25,044 INFO L87 Difference]: Start difference. First operand 961 states and 1044 transitions. Second operand 9 states. [2019-11-07 04:32:25,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:25,555 INFO L93 Difference]: Finished difference Result 2174 states and 2406 transitions. [2019-11-07 04:32:25,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 04:32:25,555 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 125 [2019-11-07 04:32:25,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:25,563 INFO L225 Difference]: With dead ends: 2174 [2019-11-07 04:32:25,563 INFO L226 Difference]: Without dead ends: 1478 [2019-11-07 04:32:25,568 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2019-11-07 04:32:25,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2019-11-07 04:32:25,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1402. [2019-11-07 04:32:25,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1402 states. [2019-11-07 04:32:25,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1523 transitions. [2019-11-07 04:32:25,715 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1523 transitions. Word has length 125 [2019-11-07 04:32:25,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:25,716 INFO L462 AbstractCegarLoop]: Abstraction has 1402 states and 1523 transitions. [2019-11-07 04:32:25,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 04:32:25,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1523 transitions. [2019-11-07 04:32:25,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-11-07 04:32:25,721 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:32:25,722 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:25,928 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:32:25,929 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:32:25,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:32:25,930 INFO L82 PathProgramCache]: Analyzing trace with hash -3065373, now seen corresponding path program 1 times [2019-11-07 04:32:25,930 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:32:25,930 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825239876] [2019-11-07 04:32:25,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:32:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:26,189 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 04:32:26,190 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825239876] [2019-11-07 04:32:26,190 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774717512] [2019-11-07 04:32:26,190 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 04:32:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:32:26,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-07 04:32:26,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:32:26,460 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 04:32:26,460 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:32:27,012 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-07 04:32:27,013 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 04:32:27,013 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15, 11] total 24 [2019-11-07 04:32:27,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823272817] [2019-11-07 04:32:27,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 04:32:27,014 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:32:27,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 04:32:27,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2019-11-07 04:32:27,015 INFO L87 Difference]: Start difference. First operand 1402 states and 1523 transitions. Second operand 11 states. [2019-11-07 04:32:27,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:32:27,631 INFO L93 Difference]: Finished difference Result 2847 states and 3217 transitions. [2019-11-07 04:32:27,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-07 04:32:27,632 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 133 [2019-11-07 04:32:27,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:32:27,633 INFO L225 Difference]: With dead ends: 2847 [2019-11-07 04:32:27,634 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 04:32:27,642 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=744, Unknown=0, NotChecked=0, Total=870 [2019-11-07 04:32:27,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 04:32:27,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 04:32:27,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 04:32:27,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 04:32:27,643 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 133 [2019-11-07 04:32:27,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:32:27,644 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 04:32:27,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 04:32:27,644 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 04:32:27,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 04:32:27,849 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:32:27,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 04:32:29,436 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 35 [2019-11-07 04:32:30,029 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2019-11-07 04:32:30,244 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 25 [2019-11-07 04:32:30,516 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 23 [2019-11-07 04:32:30,650 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2019-11-07 04:32:30,941 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 34 [2019-11-07 04:32:31,227 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 22 [2019-11-07 04:32:31,618 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 25 [2019-11-07 04:32:31,722 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 15 [2019-11-07 04:32:32,225 WARN L191 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 44 [2019-11-07 04:32:32,407 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2019-11-07 04:32:32,643 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 28 [2019-11-07 04:32:32,995 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 32 [2019-11-07 04:32:33,324 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 24 [2019-11-07 04:32:33,428 INFO L443 ceAbstractionStarter]: For program point L123(lines 123 127) no Hoare annotation was computed. [2019-11-07 04:32:33,428 INFO L443 ceAbstractionStarter]: For program point L117-2(lines 117 138) no Hoare annotation was computed. [2019-11-07 04:32:33,428 INFO L443 ceAbstractionStarter]: For program point L139(lines 116 140) no Hoare annotation was computed. [2019-11-07 04:32:33,429 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 92 147) no Hoare annotation was computed. [2019-11-07 04:32:33,432 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 92 147) no Hoare annotation was computed. [2019-11-07 04:32:33,432 INFO L443 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2019-11-07 04:32:33,432 INFO L443 ceAbstractionStarter]: For program point L193-1(line 193) no Hoare annotation was computed. [2019-11-07 04:32:33,432 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 148 207) no Hoare annotation was computed. [2019-11-07 04:32:33,432 INFO L443 ceAbstractionStarter]: For program point L180(lines 180 184) no Hoare annotation was computed. [2019-11-07 04:32:33,432 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 148 207) no Hoare annotation was computed. [2019-11-07 04:32:33,432 INFO L443 ceAbstractionStarter]: For program point L174-2(lines 174 199) no Hoare annotation was computed. [2019-11-07 04:32:33,433 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 148 207) no Hoare annotation was computed. [2019-11-07 04:32:33,433 INFO L443 ceAbstractionStarter]: For program point L200(lines 173 201) no Hoare annotation was computed. [2019-11-07 04:32:33,433 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 538 544) the Hoare annotation is: true [2019-11-07 04:32:33,433 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 538 544) no Hoare annotation was computed. [2019-11-07 04:32:33,433 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 545 553) no Hoare annotation was computed. [2019-11-07 04:32:33,433 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 545 553) the Hoare annotation is: true [2019-11-07 04:32:33,435 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 957 979) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:33,436 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 957 979) no Hoare annotation was computed. [2019-11-07 04:32:33,436 INFO L439 ceAbstractionStarter]: At program point L969(line 969) the Hoare annotation is: (or (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= main_~tmp~10 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:33,436 INFO L439 ceAbstractionStarter]: At program point L969-1(line 969) the Hoare annotation is: (or (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= main_~tmp~10 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:33,436 INFO L443 ceAbstractionStarter]: For program point L967(lines 967 974) no Hoare annotation was computed. [2019-11-07 04:32:33,436 INFO L443 ceAbstractionStarter]: For program point L967-1(lines 967 974) no Hoare annotation was computed. [2019-11-07 04:32:33,437 INFO L443 ceAbstractionStarter]: For program point L965(line 965) no Hoare annotation was computed. [2019-11-07 04:32:33,437 INFO L439 ceAbstractionStarter]: At program point L964(line 964) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:33,438 INFO L439 ceAbstractionStarter]: At program point L963(line 963) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:33,438 INFO L439 ceAbstractionStarter]: At program point L963-1(line 963) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:33,438 INFO L443 ceAbstractionStarter]: For program point L929(line 929) no Hoare annotation was computed. [2019-11-07 04:32:33,438 INFO L443 ceAbstractionStarter]: For program point L928(line 928) no Hoare annotation was computed. [2019-11-07 04:32:33,439 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 916 939) no Hoare annotation was computed. [2019-11-07 04:32:33,439 INFO L443 ceAbstractionStarter]: For program point L927(line 927) no Hoare annotation was computed. [2019-11-07 04:32:33,439 INFO L443 ceAbstractionStarter]: For program point L926(line 926) no Hoare annotation was computed. [2019-11-07 04:32:33,439 INFO L443 ceAbstractionStarter]: For program point L925(line 925) no Hoare annotation was computed. [2019-11-07 04:32:33,441 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 916 939) no Hoare annotation was computed. [2019-11-07 04:32:33,441 INFO L443 ceAbstractionStarter]: For program point L924(line 924) no Hoare annotation was computed. [2019-11-07 04:32:33,441 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 916 939) no Hoare annotation was computed. [2019-11-07 04:32:33,441 INFO L443 ceAbstractionStarter]: For program point L923(line 923) no Hoare annotation was computed. [2019-11-07 04:32:33,441 INFO L443 ceAbstractionStarter]: For program point L922(line 922) no Hoare annotation was computed. [2019-11-07 04:32:33,441 INFO L443 ceAbstractionStarter]: For program point L921(line 921) no Hoare annotation was computed. [2019-11-07 04:32:33,441 INFO L443 ceAbstractionStarter]: For program point L934(line 934) no Hoare annotation was computed. [2019-11-07 04:32:33,441 INFO L443 ceAbstractionStarter]: For program point L933(line 933) no Hoare annotation was computed. [2019-11-07 04:32:33,442 INFO L443 ceAbstractionStarter]: For program point L932(line 932) no Hoare annotation was computed. [2019-11-07 04:32:33,442 INFO L443 ceAbstractionStarter]: For program point L931(line 931) no Hoare annotation was computed. [2019-11-07 04:32:33,442 INFO L443 ceAbstractionStarter]: For program point L930(line 930) no Hoare annotation was computed. [2019-11-07 04:32:33,442 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 735 743) no Hoare annotation was computed. [2019-11-07 04:32:33,442 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 735 743) the Hoare annotation is: true [2019-11-07 04:32:33,442 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 799 817) the Hoare annotation is: true [2019-11-07 04:32:33,442 INFO L446 ceAbstractionStarter]: At program point L806(line 806) the Hoare annotation is: true [2019-11-07 04:32:33,442 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 799 817) no Hoare annotation was computed. [2019-11-07 04:32:33,443 INFO L443 ceAbstractionStarter]: For program point L806-1(line 806) no Hoare annotation was computed. [2019-11-07 04:32:33,443 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 744 779) no Hoare annotation was computed. [2019-11-07 04:32:33,443 INFO L443 ceAbstractionStarter]: For program point L774(line 774) no Hoare annotation was computed. [2019-11-07 04:32:33,443 INFO L443 ceAbstractionStarter]: For program point L774-1(line 774) no Hoare annotation was computed. [2019-11-07 04:32:33,443 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 744 779) no Hoare annotation was computed. [2019-11-07 04:32:33,443 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 531 537) no Hoare annotation was computed. [2019-11-07 04:32:33,456 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 531 537) the Hoare annotation is: true [2019-11-07 04:32:33,456 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 46 91) no Hoare annotation was computed. [2019-11-07 04:32:33,456 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 46 91) no Hoare annotation was computed. [2019-11-07 04:32:33,456 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 359 404) no Hoare annotation was computed. [2019-11-07 04:32:33,456 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 359 404) no Hoare annotation was computed. [2019-11-07 04:32:33,457 INFO L439 ceAbstractionStarter]: At program point runTestENTRY(lines 947 956) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:33,457 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 947 956) no Hoare annotation was computed. [2019-11-07 04:32:33,457 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 947 956) no Hoare annotation was computed. [2019-11-07 04:32:33,457 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 724 734) the Hoare annotation is: true [2019-11-07 04:32:33,457 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 724 734) no Hoare annotation was computed. [2019-11-07 04:32:33,457 INFO L446 ceAbstractionStarter]: At program point L729(line 729) the Hoare annotation is: true [2019-11-07 04:32:33,457 INFO L443 ceAbstractionStarter]: For program point L729-1(line 729) no Hoare annotation was computed. [2019-11-07 04:32:33,458 INFO L439 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 716 723) the Hoare annotation is: (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) [2019-11-07 04:32:33,458 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 716 723) no Hoare annotation was computed. [2019-11-07 04:32:33,458 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 493 506) no Hoare annotation was computed. [2019-11-07 04:32:33,458 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 493 506) the Hoare annotation is: true [2019-11-07 04:32:33,458 INFO L443 ceAbstractionStarter]: For program point L673(lines 673 681) no Hoare annotation was computed. [2019-11-07 04:32:33,458 INFO L439 ceAbstractionStarter]: At program point L671(line 671) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:33,458 INFO L443 ceAbstractionStarter]: For program point L671-1(line 671) no Hoare annotation was computed. [2019-11-07 04:32:33,462 INFO L443 ceAbstractionStarter]: For program point L669(lines 669 686) no Hoare annotation was computed. [2019-11-07 04:32:33,462 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 665 689) no Hoare annotation was computed. [2019-11-07 04:32:33,462 INFO L439 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 665 689) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:33,462 INFO L439 ceAbstractionStarter]: At program point L684(line 684) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:33,462 INFO L443 ceAbstractionStarter]: For program point L684-1(lines 665 689) no Hoare annotation was computed. [2019-11-07 04:32:33,463 INFO L439 ceAbstractionStarter]: At program point L679(line 679) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:33,463 INFO L439 ceAbstractionStarter]: At program point L675(line 675) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:33,463 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 631 637) no Hoare annotation was computed. [2019-11-07 04:32:33,463 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 631 637) the Hoare annotation is: true [2019-11-07 04:32:33,463 INFO L439 ceAbstractionStarter]: At program point testENTRY(lines 820 883) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:33,463 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 820 883) no Hoare annotation was computed. [2019-11-07 04:32:33,464 INFO L439 ceAbstractionStarter]: At program point L876(lines 829 877) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-11-07 04:32:33,464 INFO L439 ceAbstractionStarter]: At program point L866-2(lines 860 871) the Hoare annotation is: (let ((.cse6 (not (= |old(~methaneLevelCritical~0)| 0)))) (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse5 (= ~pumpRunning~0 1)) (.cse4 (or .cse6 (= 1 ~methaneLevelCritical~0))) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse2 (< ~waterLevel~0 3)) (.cse3 (= ~pumpRunning~0 0))) (or (not (= ~systemActive~0 1)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse5) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2 .cse5) (not (= |old(~waterLevel~0)| 1)) .cse6 (and .cse4 .cse1 .cse2 .cse3)))) [2019-11-07 04:32:33,464 INFO L443 ceAbstractionStarter]: For program point L831(lines 830 875) no Hoare annotation was computed. [2019-11-07 04:32:33,464 INFO L439 ceAbstractionStarter]: At program point L852(line 852) the Hoare annotation is: (let ((.cse0 (= 1 ~methaneLevelCritical~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 1)) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse2 (< ~waterLevel~0 3))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= ~systemActive~0 1)) (and .cse0 .cse1 .cse2 .cse4) (and (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) .cse1 .cse4) .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and (and .cse3 (and (= 0 ~methaneLevelCritical~0) .cse1)) .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-11-07 04:32:33,464 INFO L443 ceAbstractionStarter]: For program point L850(lines 850 856) no Hoare annotation was computed. [2019-11-07 04:32:33,464 INFO L443 ceAbstractionStarter]: For program point L850-1(lines 850 856) no Hoare annotation was computed. [2019-11-07 04:32:33,467 INFO L439 ceAbstractionStarter]: At program point L842(line 842) the Hoare annotation is: (let ((.cse4 (= 0 test_~splverifierCounter~0))) (let ((.cse0 (and (= 1 ~systemActive~0) .cse4 (= ~pumpRunning~0 0))) (.cse3 (= 1 ~methaneLevelCritical~0)) (.cse1 (= 0 ~methaneLevelCritical~0)) (.cse2 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2) (not (= ~systemActive~0 1)) (and .cse3 .cse0 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse3 .cse4 .cse2 .cse5) (and .cse1 .cse4 .cse2 .cse5) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))))) [2019-11-07 04:32:33,467 INFO L439 ceAbstractionStarter]: At program point L873(lines 830 875) the Hoare annotation is: (let ((.cse4 (= 0 ~methaneLevelCritical~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse0 (= 1 ~methaneLevelCritical~0)) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse2 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 0))) (or (not (= ~systemActive~0 1)) (and .cse0 .cse1 .cse2 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and (not (= ~waterLevel~0 2)) .cse4 .cse1 .cse2 .cse5) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse5) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-11-07 04:32:33,467 INFO L443 ceAbstractionStarter]: For program point L840(lines 840 846) no Hoare annotation was computed. [2019-11-07 04:32:33,468 INFO L443 ceAbstractionStarter]: For program point L840-1(lines 840 846) no Hoare annotation was computed. [2019-11-07 04:32:33,468 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 820 883) no Hoare annotation was computed. [2019-11-07 04:32:33,468 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 313 358) no Hoare annotation was computed. [2019-11-07 04:32:33,468 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 313 358) no Hoare annotation was computed. [2019-11-07 04:32:33,468 INFO L439 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 690 697) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2019-11-07 04:32:33,468 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 690 697) no Hoare annotation was computed. [2019-11-07 04:32:33,468 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 507 515) the Hoare annotation is: true [2019-11-07 04:32:33,469 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 507 515) no Hoare annotation was computed. [2019-11-07 04:32:33,469 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 461 483) no Hoare annotation was computed. [2019-11-07 04:32:33,469 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 461 483) no Hoare annotation was computed. [2019-11-07 04:32:33,469 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 297) no Hoare annotation was computed. [2019-11-07 04:32:33,469 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 210 312) no Hoare annotation was computed. [2019-11-07 04:32:33,469 INFO L443 ceAbstractionStarter]: For program point L275(line 275) no Hoare annotation was computed. [2019-11-07 04:32:33,469 INFO L443 ceAbstractionStarter]: For program point L275-1(line 275) no Hoare annotation was computed. [2019-11-07 04:32:33,469 INFO L443 ceAbstractionStarter]: For program point L234(lines 234 238) no Hoare annotation was computed. [2019-11-07 04:32:33,470 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 210 312) no Hoare annotation was computed. [2019-11-07 04:32:33,473 INFO L443 ceAbstractionStarter]: For program point L259-2(lines 259 279) no Hoare annotation was computed. [2019-11-07 04:32:33,473 INFO L443 ceAbstractionStarter]: For program point L280(lines 258 281) no Hoare annotation was computed. [2019-11-07 04:32:33,473 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 210 312) no Hoare annotation was computed. [2019-11-07 04:32:33,473 INFO L443 ceAbstractionStarter]: For program point L239(lines 239 255) no Hoare annotation was computed. [2019-11-07 04:32:33,473 INFO L443 ceAbstractionStarter]: For program point L260(lines 259 279) no Hoare annotation was computed. [2019-11-07 04:32:33,473 INFO L443 ceAbstractionStarter]: For program point L291(line 291) no Hoare annotation was computed. [2019-11-07 04:32:33,473 INFO L443 ceAbstractionStarter]: For program point L291-1(line 291) no Hoare annotation was computed. [2019-11-07 04:32:33,474 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 521 530) no Hoare annotation was computed. [2019-11-07 04:32:33,474 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 521 530) no Hoare annotation was computed. [2019-11-07 04:32:33,474 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (or (< ~waterLevel~0 3) (<= 3 |old(~waterLevel~0)|)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) [2019-11-07 04:32:33,474 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 04:32:33,474 INFO L439 ceAbstractionStarter]: At program point L704(line 704) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2019-11-07 04:32:33,474 INFO L443 ceAbstractionStarter]: For program point L704-1(line 704) no Hoare annotation was computed. [2019-11-07 04:32:33,474 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 699 715) no Hoare annotation was computed. [2019-11-07 04:32:33,474 INFO L439 ceAbstractionStarter]: At program point activatePumpENTRY(lines 699 715) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2019-11-07 04:32:33,475 INFO L439 ceAbstractionStarter]: At program point L710(line 710) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (< ~waterLevel~0 3))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2) (or .cse0 (and (= ~methaneLevelCritical~0 activatePump_~tmp~6) (= ~pumpRunning~0 0)) .cse1 .cse2))) [2019-11-07 04:32:33,475 INFO L443 ceAbstractionStarter]: For program point L710-1(lines 699 715) no Hoare annotation was computed. [2019-11-07 04:32:33,475 INFO L443 ceAbstractionStarter]: For program point L706(lines 706 712) no Hoare annotation was computed. [2019-11-07 04:32:33,475 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 484 492) the Hoare annotation is: true [2019-11-07 04:32:33,475 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 484 492) no Hoare annotation was computed. [2019-11-07 04:32:33,475 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 780 798) no Hoare annotation was computed. [2019-11-07 04:32:33,475 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 780 798) the Hoare annotation is: true [2019-11-07 04:32:33,475 INFO L446 ceAbstractionStarter]: At program point L787(line 787) the Hoare annotation is: true [2019-11-07 04:32:33,475 INFO L443 ceAbstractionStarter]: For program point L787-1(line 787) no Hoare annotation was computed. [2019-11-07 04:32:33,475 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-11-07 04:32:33,476 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-11-07 04:32:33,478 INFO L439 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 440 451) the Hoare annotation is: (let ((.cse2 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse0 (not (< ~waterLevel~0 3))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (or (not (= 0 ~pumpRunning~0)) .cse1) .cse2) (or .cse2 (or .cse0 (or .cse1 (not (= 1 ~pumpRunning~0))))))) [2019-11-07 04:32:33,478 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 440 451) no Hoare annotation was computed. [2019-11-07 04:32:33,478 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 452 460) the Hoare annotation is: true [2019-11-07 04:32:33,478 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 452 460) no Hoare annotation was computed. [2019-11-07 04:32:33,478 INFO L439 ceAbstractionStarter]: At program point timeShiftENTRY(lines 607 630) the Hoare annotation is: (let ((.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (< |old(~waterLevel~0)| 3))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (< ~waterLevel~0 3))) (and (or (or .cse0 (or (not (= 1 |old(~pumpRunning~0)|)) .cse1)) (and .cse2 (= ~pumpRunning~0 1))) (or (not (< |old(~waterLevel~0)| 2)) .cse3 .cse1 (< ~waterLevel~0 2)) (or .cse3 (= 1 ~waterLevel~0) .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse3 .cse0 .cse1 (and .cse2 (= ~pumpRunning~0 0))))) [2019-11-07 04:32:33,481 INFO L439 ceAbstractionStarter]: At program point L620(line 620) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 2)) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (< |old(~waterLevel~0)| 3))) (.cse2 (not (= ~systemActive~0 1)))) (and (or (and (= ~pumpRunning~0 1) .cse0) (or .cse1 (or (not (= 1 |old(~pumpRunning~0)|)) .cse2))) (or (not (< |old(~waterLevel~0)| 2)) .cse3 .cse2 .cse0) (or .cse3 (= 1 ~waterLevel~0) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse3 .cse1 .cse2 (and (< ~waterLevel~0 3) (= ~pumpRunning~0 0))))) [2019-11-07 04:32:33,482 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 607 630) no Hoare annotation was computed. [2019-11-07 04:32:33,482 INFO L439 ceAbstractionStarter]: At program point L618(lines 618 624) the Hoare annotation is: (let ((.cse1 (< ~waterLevel~0 2)) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (= ~pumpRunning~0 1)) (.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse3 (not (= ~systemActive~0 1))) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse7 (< ~waterLevel~0 3)) (.cse0 (= ~pumpRunning~0 0))) (and (or (and .cse0 .cse1) (or .cse2 (or (not (= 1 |old(~pumpRunning~0)|)) .cse3)) (and .cse4 .cse1)) (or .cse5 .cse6 .cse2 .cse3 (and .cse7 .cse0)) (or (not (< |old(~waterLevel~0)| 2)) .cse5 .cse3 .cse1) (or .cse5 (= 1 ~waterLevel~0) .cse3 (not (= |old(~waterLevel~0)| 1))) (or .cse5 (and .cse7 .cse4) .cse2 .cse3 (not .cse6) (and (not (= ~waterLevel~0 2)) .cse7 .cse0)))) [2019-11-07 04:32:33,482 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 607 630) no Hoare annotation was computed. [2019-11-07 04:32:33,482 INFO L439 ceAbstractionStarter]: At program point L613(line 613) the Hoare annotation is: (let ((.cse0 (not (< |old(~waterLevel~0)| 3))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (and (< ~waterLevel~0 3) (= ~pumpRunning~0 1)) (or .cse0 (or (not (= 1 |old(~pumpRunning~0)|)) .cse1))))) [2019-11-07 04:32:33,482 INFO L443 ceAbstractionStarter]: For program point L611(lines 610 629) no Hoare annotation was computed. [2019-11-07 04:32:33,482 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 886 915) no Hoare annotation was computed. [2019-11-07 04:32:33,482 INFO L446 ceAbstractionStarter]: At program point L896-2(lines 896 910) the Hoare annotation is: true [2019-11-07 04:32:33,483 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 886 915) the Hoare annotation is: true [2019-11-07 04:32:33,483 INFO L446 ceAbstractionStarter]: At program point L892(line 892) the Hoare annotation is: true [2019-11-07 04:32:33,483 INFO L443 ceAbstractionStarter]: For program point L892-1(line 892) no Hoare annotation was computed. [2019-11-07 04:32:33,483 INFO L446 ceAbstractionStarter]: At program point L911(lines 886 915) the Hoare annotation is: true [2019-11-07 04:32:33,483 INFO L443 ceAbstractionStarter]: For program point L907(line 907) no Hoare annotation was computed. [2019-11-07 04:32:33,483 INFO L443 ceAbstractionStarter]: For program point L900(lines 900 904) no Hoare annotation was computed. [2019-11-07 04:32:33,483 INFO L446 ceAbstractionStarter]: At program point L900-1(lines 900 904) the Hoare annotation is: true [2019-11-07 04:32:33,483 INFO L443 ceAbstractionStarter]: For program point L576(lines 576 582) no Hoare annotation was computed. [2019-11-07 04:32:33,487 INFO L439 ceAbstractionStarter]: At program point L574(line 574) the Hoare annotation is: (let ((.cse2 (not (= 1 ~pumpRunning~0))) (.cse4 (not (= 0 ~pumpRunning~0))) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (not (< ~waterLevel~0 3))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (< ~waterLevel~0 2)) .cse4 .cse3) (or (= ~waterLevel~0 2) .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse3))) [2019-11-07 04:32:33,488 INFO L443 ceAbstractionStarter]: For program point L574-1(line 574) no Hoare annotation was computed. [2019-11-07 04:32:33,488 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification3_spec__1EXIT(lines 557 589) no Hoare annotation was computed. [2019-11-07 04:32:33,488 INFO L443 ceAbstractionStarter]: For program point L572(lines 572 585) no Hoare annotation was computed. [2019-11-07 04:32:33,488 INFO L443 ceAbstractionStarter]: For program point L572-1(lines 557 589) no Hoare annotation was computed. [2019-11-07 04:32:33,489 INFO L439 ceAbstractionStarter]: At program point L570(line 570) the Hoare annotation is: (let ((.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (not (< ~waterLevel~0 3))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= 1 ~pumpRunning~0)) .cse2) (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 .cse2))) [2019-11-07 04:32:33,489 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification3_spec__1ENTRY(lines 557 589) the Hoare annotation is: true [2019-11-07 04:32:33,489 INFO L443 ceAbstractionStarter]: For program point L570-1(line 570) no Hoare annotation was computed. [2019-11-07 04:32:33,489 INFO L443 ceAbstractionStarter]: For program point L566(lines 566 586) no Hoare annotation was computed. [2019-11-07 04:32:33,489 INFO L446 ceAbstractionStarter]: At program point L564(line 564) the Hoare annotation is: true [2019-11-07 04:32:33,489 INFO L443 ceAbstractionStarter]: For program point L564-1(line 564) no Hoare annotation was computed. [2019-11-07 04:32:33,489 INFO L439 ceAbstractionStarter]: At program point L580(line 580) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (< ~waterLevel~0 3))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (< ~waterLevel~0 2)) .cse0 .cse1) (or .cse2 (not (= 1 ~pumpRunning~0)) .cse1) (or .cse0 (= ~methaneLevelCritical~0 0) .cse2 .cse1))) [2019-11-07 04:32:33,489 INFO L439 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 416 427) the Hoare annotation is: (or (< ~waterLevel~0 3) (or (not (= ~systemActive~0 1)) (not (< |old(~waterLevel~0)| 3)) (not (= 1 ~pumpRunning~0)))) [2019-11-07 04:32:33,490 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 416 427) no Hoare annotation was computed. [2019-11-07 04:32:33,493 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 940 946) no Hoare annotation was computed. [2019-11-07 04:32:33,493 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 940 946) the Hoare annotation is: true [2019-11-07 04:32:33,493 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 04:32:33,493 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) [2019-11-07 04:32:33,493 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 04:32:33,493 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 04:32:33,494 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 639 663) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:33,494 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 639 663) no Hoare annotation was computed. [2019-11-07 04:32:33,494 INFO L439 ceAbstractionStarter]: At program point L658(line 658) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:33,494 INFO L443 ceAbstractionStarter]: For program point L658-1(lines 639 663) no Hoare annotation was computed. [2019-11-07 04:32:33,494 INFO L439 ceAbstractionStarter]: At program point L653(line 653) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (and (not (= ~waterLevel~0 2)) (= ~pumpRunning~0 0))) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:33,494 INFO L439 ceAbstractionStarter]: At program point L649(line 649) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (and (or (not (= ~waterLevel~0 2)) (= 1 processEnvironment__wrappee__highWaterSensor_~tmp~4)) (= ~pumpRunning~0 0)) (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:33,494 INFO L443 ceAbstractionStarter]: For program point L647(lines 647 655) no Hoare annotation was computed. [2019-11-07 04:32:33,495 INFO L439 ceAbstractionStarter]: At program point L645(line 645) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-11-07 04:32:33,495 INFO L443 ceAbstractionStarter]: For program point L645-1(line 645) no Hoare annotation was computed. [2019-11-07 04:32:33,495 INFO L443 ceAbstractionStarter]: For program point L643(lines 643 660) no Hoare annotation was computed. [2019-11-07 04:32:33,496 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 428 439) no Hoare annotation was computed. [2019-11-07 04:32:33,496 INFO L439 ceAbstractionStarter]: At program point waterRiseENTRY(lines 428 439) the Hoare annotation is: (let ((.cse0 (not (< |old(~waterLevel~0)| 3))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (< ~waterLevel~0 3))) (and (or (or .cse0 .cse1 (not (= 1 ~pumpRunning~0))) .cse2) (or (or .cse0 (or (not (= 0 ~pumpRunning~0)) .cse1)) .cse2))) [2019-11-07 04:32:33,496 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 595) no Hoare annotation was computed. [2019-11-07 04:32:33,498 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 591 598) the Hoare annotation is: true [2019-11-07 04:32:33,498 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 591 598) no Hoare annotation was computed. [2019-11-07 04:32:33,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:32:33 BoogieIcfgContainer [2019-11-07 04:32:33,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 04:32:33,528 INFO L168 Benchmark]: Toolchain (without parser) took 20067.22 ms. Allocated memory was 138.9 MB in the beginning and 508.6 MB in the end (delta: 369.6 MB). Free memory was 103.1 MB in the beginning and 334.7 MB in the end (delta: -231.5 MB). Peak memory consumption was 384.0 MB. Max. memory is 7.1 GB. [2019-11-07 04:32:33,529 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-11-07 04:32:33,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.58 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 102.9 MB in the beginning and 171.5 MB in the end (delta: -68.6 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2019-11-07 04:32:33,533 INFO L168 Benchmark]: Boogie Preprocessor took 84.40 ms. Allocated memory is still 203.9 MB. Free memory was 171.5 MB in the beginning and 166.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-11-07 04:32:33,534 INFO L168 Benchmark]: RCFGBuilder took 1767.67 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 166.8 MB in the beginning and 143.1 MB in the end (delta: 23.7 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2019-11-07 04:32:33,535 INFO L168 Benchmark]: TraceAbstraction took 17450.94 ms. Allocated memory was 237.0 MB in the beginning and 508.6 MB in the end (delta: 271.6 MB). Free memory was 143.1 MB in the beginning and 334.7 MB in the end (delta: -191.6 MB). Peak memory consumption was 325.9 MB. Max. memory is 7.1 GB. [2019-11-07 04:32:33,542 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 759.58 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 102.9 MB in the beginning and 171.5 MB in the end (delta: -68.6 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.40 ms. Allocated memory is still 203.9 MB. Free memory was 171.5 MB in the beginning and 166.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1767.67 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 166.8 MB in the beginning and 143.1 MB in the end (delta: 23.7 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17450.94 ms. Allocated memory was 237.0 MB in the beginning and 508.6 MB in the end (delta: 271.6 MB). Free memory was 143.1 MB in the beginning and 334.7 MB in the end (delta: -191.6 MB). Peak memory consumption was 325.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 595]: 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: 886]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 830]: Loop Invariant Derived loop invariant: ((((((!(systemActive == 1) || (((1 == methaneLevelCritical && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 1)) || !(0 == \old(pumpRunning))) || ((((!(waterLevel == 2) && 0 == methaneLevelCritical) && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 0)) || (((0 == methaneLevelCritical && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 1)) || (((1 == methaneLevelCritical && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 896]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 829]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 192 locations, 1 error locations. Result: SAFE, OverallTime: 17.3s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.5s, HoareTripleCheckerStatistics: 1625 SDtfs, 1324 SDslu, 5637 SDs, 0 SdLazy, 2776 SolverSat, 672 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 850 GetRequests, 707 SyntacticMatches, 2 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1402occurred in iteration=10, 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, 242 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 65 LocationsWithAnnotation, 2954 PreInvPairs, 3082 NumberOfFragments, 1546 HoareAnnotationTreeSize, 2954 FomulaSimplifications, 6646 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 65 FomulaSimplificationsInter, 18913 FormulaSimplificationTreeSizeReductionInter, 4.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1217 NumberOfCodeBlocks, 1217 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1543 ConstructedInterpolants, 0 QuantifiedInterpolants, 289742 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2448 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 193/211 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...