java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:21:06,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:21:06,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:21:06,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:21:06,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:21:06,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:21:06,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:21:06,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:21:06,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:21:06,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:21:06,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:21:06,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:21:06,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:21:06,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:21:06,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:21:06,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:21:06,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:21:06,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:21:06,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:21:06,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:21:06,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:21:06,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:21:06,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:21:06,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:21:06,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:21:06,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:21:06,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:21:06,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:21:06,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:21:06,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:21:06,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:21:06,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:21:06,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:21:06,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:21:06,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:21:06,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:21:06,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:21:06,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:21:06,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:21:06,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:21:06,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:21:06,215 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 [2019-10-13 21:21:06,236 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:21:06,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:21:06,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:21:06,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:21:06,239 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:21:06,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:21:06,240 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:21:06,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:21:06,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:21:06,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:21:06,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:21:06,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:21:06,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:21:06,243 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:21:06,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:21:06,243 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:21:06,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:21:06,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:21:06,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:21:06,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:21:06,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:21:06,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:21:06,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:21:06,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:21:06,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:21:06,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:21:06,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:21:06,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:21:06,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:21:06,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:21:06,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:21:06,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:21:06,579 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:21:06,579 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:21:06,580 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product60.cil.c [2019-10-13 21:21:06,658 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/103f7f060/9186ed8472f8440ebe3d77ff267d438e/FLAG0b3c4a6a8 [2019-10-13 21:21:07,179 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:21:07,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product60.cil.c [2019-10-13 21:21:07,202 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/103f7f060/9186ed8472f8440ebe3d77ff267d438e/FLAG0b3c4a6a8 [2019-10-13 21:21:07,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/103f7f060/9186ed8472f8440ebe3d77ff267d438e [2019-10-13 21:21:07,544 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:21:07,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:21:07,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:21:07,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:21:07,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:21:07,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:21:07" (1/1) ... [2019-10-13 21:21:07,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@422b8279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:07, skipping insertion in model container [2019-10-13 21:21:07,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:21:07" (1/1) ... [2019-10-13 21:21:07,563 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:21:07,621 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:21:08,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:21:08,095 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:21:08,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:21:08,221 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:21:08,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:08 WrapperNode [2019-10-13 21:21:08,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:21:08,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:21:08,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:21:08,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:21:08,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:08" (1/1) ... [2019-10-13 21:21:08,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:08" (1/1) ... [2019-10-13 21:21:08,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:08" (1/1) ... [2019-10-13 21:21:08,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:08" (1/1) ... [2019-10-13 21:21:08,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:08" (1/1) ... [2019-10-13 21:21:08,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:08" (1/1) ... [2019-10-13 21:21:08,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:08" (1/1) ... [2019-10-13 21:21:08,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:21:08,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:21:08,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:21:08,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:21:08,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:21:08,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:21:08,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:21:08,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:21:08,373 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 21:21:08,374 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 21:21:08,374 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 21:21:08,374 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 21:21:08,374 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 21:21:08,374 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 21:21:08,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 21:21:08,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 21:21:08,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:21:08,375 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 21:21:08,375 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 21:21:08,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:21:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 21:21:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:21:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:21:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:21:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:21:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:21:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:21:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:21:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:21:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:21:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:21:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:21:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:21:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 21:21:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 21:21:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:21:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 21:21:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 21:21:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 21:21:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 21:21:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 21:21:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 21:21:08,380 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 21:21:08,380 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 21:21:08,380 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 21:21:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 21:21:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 21:21:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 21:21:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 21:21:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:21:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:21:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:21:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 21:21:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 21:21:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 21:21:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 21:21:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 21:21:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 21:21:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 21:21:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 21:21:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:21:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:21:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 21:21:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 21:21:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 21:21:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 21:21:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:21:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 21:21:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:21:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 21:21:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:21:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:21:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:21:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:21:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:21:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 21:21:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 21:21:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:21:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:21:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:21:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:21:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:21:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:21:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:21:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:21:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:21:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:21:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:21:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:21:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:21:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:21:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:21:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:21:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 21:21:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 21:21:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 21:21:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 21:21:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 21:21:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 21:21:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 21:21:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:21:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 21:21:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 21:21:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 21:21:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:21:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:21:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:21:09,508 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:21:09,508 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 21:21:09,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:21:09 BoogieIcfgContainer [2019-10-13 21:21:09,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:21:09,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:21:09,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:21:09,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:21:09,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:21:07" (1/3) ... [2019-10-13 21:21:09,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e28ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:21:09, skipping insertion in model container [2019-10-13 21:21:09,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:08" (2/3) ... [2019-10-13 21:21:09,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e28ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:21:09, skipping insertion in model container [2019-10-13 21:21:09,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:21:09" (3/3) ... [2019-10-13 21:21:09,521 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product60.cil.c [2019-10-13 21:21:09,530 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:21:09,541 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:21:09,552 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:21:09,588 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:21:09,588 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:21:09,588 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:21:09,588 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:21:09,589 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:21:09,589 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:21:09,589 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:21:09,589 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:21:09,611 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-10-13 21:21:09,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 21:21:09,621 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:09,623 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:21:09,625 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:09,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:09,631 INFO L82 PathProgramCache]: Analyzing trace with hash 694173544, now seen corresponding path program 1 times [2019-10-13 21:21:09,641 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:09,641 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644665531] [2019-10-13 21:21:09,642 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:09,642 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:09,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:10,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:21:10,040 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644665531] [2019-10-13 21:21:10,041 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:10,042 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:21:10,042 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935885510] [2019-10-13 21:21:10,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:21:10,048 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:10,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:21:10,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:21:10,061 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 2 states. [2019-10-13 21:21:10,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:10,116 INFO L93 Difference]: Finished difference Result 306 states and 377 transitions. [2019-10-13 21:21:10,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:21:10,121 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-10-13 21:21:10,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:10,153 INFO L225 Difference]: With dead ends: 306 [2019-10-13 21:21:10,154 INFO L226 Difference]: Without dead ends: 155 [2019-10-13 21:21:10,162 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:21:10,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-10-13 21:21:10,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2019-10-13 21:21:10,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-10-13 21:21:10,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 182 transitions. [2019-10-13 21:21:10,227 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 182 transitions. Word has length 51 [2019-10-13 21:21:10,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:10,227 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 182 transitions. [2019-10-13 21:21:10,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:21:10,228 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 182 transitions. [2019-10-13 21:21:10,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 21:21:10,232 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:10,232 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:21:10,232 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:10,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:10,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1863175654, now seen corresponding path program 1 times [2019-10-13 21:21:10,233 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:10,233 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894325869] [2019-10-13 21:21:10,234 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:10,234 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:10,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:10,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:21:10,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894325869] [2019-10-13 21:21:10,424 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:10,424 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:21:10,424 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422241216] [2019-10-13 21:21:10,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:21:10,427 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:10,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:21:10,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:21:10,428 INFO L87 Difference]: Start difference. First operand 155 states and 182 transitions. Second operand 3 states. [2019-10-13 21:21:10,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:10,454 INFO L93 Difference]: Finished difference Result 245 states and 287 transitions. [2019-10-13 21:21:10,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:21:10,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-13 21:21:10,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:10,458 INFO L225 Difference]: With dead ends: 245 [2019-10-13 21:21:10,459 INFO L226 Difference]: Without dead ends: 146 [2019-10-13 21:21:10,461 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:21:10,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-10-13 21:21:10,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-10-13 21:21:10,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-10-13 21:21:10,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 170 transitions. [2019-10-13 21:21:10,491 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 170 transitions. Word has length 52 [2019-10-13 21:21:10,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:10,492 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 170 transitions. [2019-10-13 21:21:10,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:21:10,492 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 170 transitions. [2019-10-13 21:21:10,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-13 21:21:10,495 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:10,499 INFO L380 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] [2019-10-13 21:21:10,499 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:10,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:10,499 INFO L82 PathProgramCache]: Analyzing trace with hash 284161781, now seen corresponding path program 1 times [2019-10-13 21:21:10,500 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:10,500 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21530306] [2019-10-13 21:21:10,500 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:10,500 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:10,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:10,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:21:10,666 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21530306] [2019-10-13 21:21:10,667 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:10,667 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:21:10,667 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21007385] [2019-10-13 21:21:10,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:21:10,668 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:10,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:21:10,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:21:10,669 INFO L87 Difference]: Start difference. First operand 146 states and 170 transitions. Second operand 7 states. [2019-10-13 21:21:11,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:11,294 INFO L93 Difference]: Finished difference Result 433 states and 524 transitions. [2019-10-13 21:21:11,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:21:11,295 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-10-13 21:21:11,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:11,299 INFO L225 Difference]: With dead ends: 433 [2019-10-13 21:21:11,299 INFO L226 Difference]: Without dead ends: 315 [2019-10-13 21:21:11,301 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:21:11,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2019-10-13 21:21:11,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 303. [2019-10-13 21:21:11,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2019-10-13 21:21:11,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 366 transitions. [2019-10-13 21:21:11,360 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 366 transitions. Word has length 57 [2019-10-13 21:21:11,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:11,362 INFO L462 AbstractCegarLoop]: Abstraction has 303 states and 366 transitions. [2019-10-13 21:21:11,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:21:11,363 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 366 transitions. [2019-10-13 21:21:11,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-13 21:21:11,373 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:11,373 INFO L380 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] [2019-10-13 21:21:11,373 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:11,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:11,374 INFO L82 PathProgramCache]: Analyzing trace with hash 367003092, now seen corresponding path program 1 times [2019-10-13 21:21:11,374 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:11,374 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517377568] [2019-10-13 21:21:11,374 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:11,374 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:11,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:11,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:21:11,540 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517377568] [2019-10-13 21:21:11,541 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:11,541 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:21:11,541 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553423919] [2019-10-13 21:21:11,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:21:11,542 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:11,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:21:11,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:21:11,547 INFO L87 Difference]: Start difference. First operand 303 states and 366 transitions. Second operand 6 states. [2019-10-13 21:21:11,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:11,822 INFO L93 Difference]: Finished difference Result 835 states and 1032 transitions. [2019-10-13 21:21:11,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:21:11,822 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-10-13 21:21:11,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:11,828 INFO L225 Difference]: With dead ends: 835 [2019-10-13 21:21:11,828 INFO L226 Difference]: Without dead ends: 560 [2019-10-13 21:21:11,830 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:21:11,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2019-10-13 21:21:11,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 554. [2019-10-13 21:21:11,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2019-10-13 21:21:11,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 672 transitions. [2019-10-13 21:21:11,875 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 672 transitions. Word has length 62 [2019-10-13 21:21:11,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:11,875 INFO L462 AbstractCegarLoop]: Abstraction has 554 states and 672 transitions. [2019-10-13 21:21:11,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:21:11,875 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 672 transitions. [2019-10-13 21:21:11,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-13 21:21:11,878 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:11,878 INFO L380 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] [2019-10-13 21:21:11,878 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:11,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:11,879 INFO L82 PathProgramCache]: Analyzing trace with hash -612062288, now seen corresponding path program 1 times [2019-10-13 21:21:11,879 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:11,879 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738158599] [2019-10-13 21:21:11,879 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:11,879 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:11,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:11,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:21:11,992 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738158599] [2019-10-13 21:21:11,993 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:11,993 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:21:11,993 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018769676] [2019-10-13 21:21:11,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:21:11,994 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:11,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:21:11,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:21:11,995 INFO L87 Difference]: Start difference. First operand 554 states and 672 transitions. Second operand 7 states. [2019-10-13 21:21:12,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:12,799 INFO L93 Difference]: Finished difference Result 1415 states and 1838 transitions. [2019-10-13 21:21:12,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:21:12,799 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-10-13 21:21:12,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:12,806 INFO L225 Difference]: With dead ends: 1415 [2019-10-13 21:21:12,806 INFO L226 Difference]: Without dead ends: 889 [2019-10-13 21:21:12,809 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:21:12,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2019-10-13 21:21:12,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 791. [2019-10-13 21:21:12,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2019-10-13 21:21:12,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 955 transitions. [2019-10-13 21:21:12,882 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 955 transitions. Word has length 66 [2019-10-13 21:21:12,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:12,883 INFO L462 AbstractCegarLoop]: Abstraction has 791 states and 955 transitions. [2019-10-13 21:21:12,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:21:12,884 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 955 transitions. [2019-10-13 21:21:12,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-13 21:21:12,888 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:12,888 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:21:12,889 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:12,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:12,889 INFO L82 PathProgramCache]: Analyzing trace with hash 637474211, now seen corresponding path program 1 times [2019-10-13 21:21:12,889 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:12,890 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578364141] [2019-10-13 21:21:12,890 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:12,890 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:12,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:13,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:21:13,034 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578364141] [2019-10-13 21:21:13,034 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:13,034 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:21:13,035 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039887148] [2019-10-13 21:21:13,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:21:13,035 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:13,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:21:13,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:21:13,038 INFO L87 Difference]: Start difference. First operand 791 states and 955 transitions. Second operand 6 states. [2019-10-13 21:21:13,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:13,101 INFO L93 Difference]: Finished difference Result 1582 states and 1970 transitions. [2019-10-13 21:21:13,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:21:13,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2019-10-13 21:21:13,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:13,110 INFO L225 Difference]: With dead ends: 1582 [2019-10-13 21:21:13,110 INFO L226 Difference]: Without dead ends: 819 [2019-10-13 21:21:13,113 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:21:13,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2019-10-13 21:21:13,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 811. [2019-10-13 21:21:13,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2019-10-13 21:21:13,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 975 transitions. [2019-10-13 21:21:13,168 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 975 transitions. Word has length 104 [2019-10-13 21:21:13,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:13,168 INFO L462 AbstractCegarLoop]: Abstraction has 811 states and 975 transitions. [2019-10-13 21:21:13,168 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:21:13,169 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 975 transitions. [2019-10-13 21:21:13,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-13 21:21:13,177 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:13,177 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:21:13,177 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:13,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:13,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1729220383, now seen corresponding path program 1 times [2019-10-13 21:21:13,178 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:13,178 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077698008] [2019-10-13 21:21:13,178 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:13,178 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:13,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:13,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:21:13,267 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077698008] [2019-10-13 21:21:13,267 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:13,267 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:21:13,267 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031670732] [2019-10-13 21:21:13,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:21:13,268 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:13,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:21:13,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:21:13,269 INFO L87 Difference]: Start difference. First operand 811 states and 975 transitions. Second operand 8 states. [2019-10-13 21:21:13,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:13,332 INFO L93 Difference]: Finished difference Result 1622 states and 2010 transitions. [2019-10-13 21:21:13,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:21:13,332 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2019-10-13 21:21:13,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:13,338 INFO L225 Difference]: With dead ends: 1622 [2019-10-13 21:21:13,339 INFO L226 Difference]: Without dead ends: 839 [2019-10-13 21:21:13,342 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:21:13,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2019-10-13 21:21:13,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 827. [2019-10-13 21:21:13,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-10-13 21:21:13,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 991 transitions. [2019-10-13 21:21:13,392 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 991 transitions. Word has length 104 [2019-10-13 21:21:13,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:13,392 INFO L462 AbstractCegarLoop]: Abstraction has 827 states and 991 transitions. [2019-10-13 21:21:13,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:21:13,393 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 991 transitions. [2019-10-13 21:21:13,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-13 21:21:13,395 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:13,396 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:21:13,396 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:13,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:13,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1969760512, now seen corresponding path program 1 times [2019-10-13 21:21:13,396 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:13,397 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097519771] [2019-10-13 21:21:13,397 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:13,397 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:13,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:13,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:21:13,475 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097519771] [2019-10-13 21:21:13,475 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:13,475 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:21:13,475 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651063377] [2019-10-13 21:21:13,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:21:13,476 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:13,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:21:13,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:21:13,477 INFO L87 Difference]: Start difference. First operand 827 states and 991 transitions. Second operand 4 states. [2019-10-13 21:21:13,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:13,809 INFO L93 Difference]: Finished difference Result 2613 states and 3282 transitions. [2019-10-13 21:21:13,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:21:13,812 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2019-10-13 21:21:13,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:13,824 INFO L225 Difference]: With dead ends: 2613 [2019-10-13 21:21:13,824 INFO L226 Difference]: Without dead ends: 1814 [2019-10-13 21:21:13,828 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:21:13,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2019-10-13 21:21:13,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1783. [2019-10-13 21:21:13,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1783 states. [2019-10-13 21:21:13,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 2191 transitions. [2019-10-13 21:21:13,976 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 2191 transitions. Word has length 104 [2019-10-13 21:21:13,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:13,977 INFO L462 AbstractCegarLoop]: Abstraction has 1783 states and 2191 transitions. [2019-10-13 21:21:13,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:21:13,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 2191 transitions. [2019-10-13 21:21:13,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 21:21:13,983 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:13,983 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:21:13,984 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:13,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:13,984 INFO L82 PathProgramCache]: Analyzing trace with hash 672707866, now seen corresponding path program 1 times [2019-10-13 21:21:13,984 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:13,985 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820849429] [2019-10-13 21:21:13,985 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:13,985 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:13,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:14,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:21:14,168 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820849429] [2019-10-13 21:21:14,169 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222687433] [2019-10-13 21:21:14,169 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 [2019-10-13 21:21:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:14,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 21:21:14,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:21:14,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:21:14,774 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:21:15,765 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:21:15,767 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:21:15,767 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2019-10-13 21:21:15,767 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127177678] [2019-10-13 21:21:15,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:21:15,768 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:15,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:21:15,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:21:15,769 INFO L87 Difference]: Start difference. First operand 1783 states and 2191 transitions. Second operand 8 states. [2019-10-13 21:21:16,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:16,386 INFO L93 Difference]: Finished difference Result 3512 states and 4334 transitions. [2019-10-13 21:21:16,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:21:16,387 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2019-10-13 21:21:16,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:16,401 INFO L225 Difference]: With dead ends: 3512 [2019-10-13 21:21:16,402 INFO L226 Difference]: Without dead ends: 1757 [2019-10-13 21:21:16,408 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 199 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:21:16,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2019-10-13 21:21:16,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1757. [2019-10-13 21:21:16,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1757 states. [2019-10-13 21:21:16,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 2115 transitions. [2019-10-13 21:21:16,535 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 2115 transitions. Word has length 108 [2019-10-13 21:21:16,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:16,537 INFO L462 AbstractCegarLoop]: Abstraction has 1757 states and 2115 transitions. [2019-10-13 21:21:16,537 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:21:16,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 2115 transitions. [2019-10-13 21:21:16,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 21:21:16,546 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:16,546 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:21:16,751 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:21:16,752 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:16,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:16,752 INFO L82 PathProgramCache]: Analyzing trace with hash 19459107, now seen corresponding path program 1 times [2019-10-13 21:21:16,753 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:16,754 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869246033] [2019-10-13 21:21:16,754 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:16,754 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:16,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:16,884 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 21:21:16,884 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869246033] [2019-10-13 21:21:16,885 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:16,885 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:21:16,885 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547265571] [2019-10-13 21:21:16,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:21:16,890 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:16,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:21:16,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:21:16,891 INFO L87 Difference]: Start difference. First operand 1757 states and 2115 transitions. Second operand 3 states. [2019-10-13 21:21:16,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:16,998 INFO L93 Difference]: Finished difference Result 2794 states and 3455 transitions. [2019-10-13 21:21:16,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:21:16,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-10-13 21:21:16,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:17,021 INFO L225 Difference]: With dead ends: 2794 [2019-10-13 21:21:17,021 INFO L226 Difference]: Without dead ends: 2791 [2019-10-13 21:21:17,023 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:21:17,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2019-10-13 21:21:17,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 2633. [2019-10-13 21:21:17,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2633 states. [2019-10-13 21:21:17,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 3263 transitions. [2019-10-13 21:21:17,282 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 3263 transitions. Word has length 162 [2019-10-13 21:21:17,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:17,283 INFO L462 AbstractCegarLoop]: Abstraction has 2633 states and 3263 transitions. [2019-10-13 21:21:17,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:21:17,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 3263 transitions. [2019-10-13 21:21:17,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-13 21:21:17,303 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:17,305 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:21:17,305 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:17,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:17,306 INFO L82 PathProgramCache]: Analyzing trace with hash -2025500828, now seen corresponding path program 1 times [2019-10-13 21:21:17,306 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:17,306 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889841698] [2019-10-13 21:21:17,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:17,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:17,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:17,482 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 49 proven. 11 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-13 21:21:17,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889841698] [2019-10-13 21:21:17,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864656178] [2019-10-13 21:21:17,483 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 [2019-10-13 21:21:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:17,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 21:21:17,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:21:17,812 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2019-10-13 21:21:17,812 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:21:18,180 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 49 proven. 11 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-13 21:21:18,181 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:21:18,182 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2019-10-13 21:21:18,182 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750199029] [2019-10-13 21:21:18,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:21:18,183 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:18,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:21:18,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:21:18,184 INFO L87 Difference]: Start difference. First operand 2633 states and 3263 transitions. Second operand 5 states. [2019-10-13 21:21:19,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:19,074 INFO L93 Difference]: Finished difference Result 5804 states and 7588 transitions. [2019-10-13 21:21:19,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:21:19,075 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 227 [2019-10-13 21:21:19,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:19,108 INFO L225 Difference]: With dead ends: 5804 [2019-10-13 21:21:19,108 INFO L226 Difference]: Without dead ends: 3523 [2019-10-13 21:21:19,119 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 454 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:21:19,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3523 states. [2019-10-13 21:21:19,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3523 to 3269. [2019-10-13 21:21:19,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3269 states. [2019-10-13 21:21:19,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3269 states to 3269 states and 4162 transitions. [2019-10-13 21:21:19,493 INFO L78 Accepts]: Start accepts. Automaton has 3269 states and 4162 transitions. Word has length 227 [2019-10-13 21:21:19,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:19,494 INFO L462 AbstractCegarLoop]: Abstraction has 3269 states and 4162 transitions. [2019-10-13 21:21:19,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:21:19,494 INFO L276 IsEmpty]: Start isEmpty. Operand 3269 states and 4162 transitions. [2019-10-13 21:21:19,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2019-10-13 21:21:19,516 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:19,516 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:21:19,723 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:21:19,723 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:19,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:19,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1599354868, now seen corresponding path program 1 times [2019-10-13 21:21:19,724 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:19,724 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879455875] [2019-10-13 21:21:19,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:19,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:19,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 54 proven. 26 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 21:21:20,000 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879455875] [2019-10-13 21:21:20,000 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175996895] [2019-10-13 21:21:20,000 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 [2019-10-13 21:21:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:20,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 1104 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-13 21:21:20,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:21:20,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:21:20,437 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 104 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-13 21:21:20,437 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:21:20,686 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:21:20,745 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:21:20,769 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:21:20,771 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:21:20,810 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:21:20,997 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 54 proven. 26 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 21:21:20,997 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [460129432] [2019-10-13 21:21:21,002 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 224 [2019-10-13 21:21:21,061 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:21:21,061 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:21:21,139 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:21:21,141 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-10-13 21:21:21,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:21,147 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:21:21,237 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-13 21:21:21,237 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:21:21,243 INFO L553 sIntCurrentIteration]: We unified 222 AI predicates to 222 [2019-10-13 21:21:21,243 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:21:21,244 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:21:21,245 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10, 10, 10] total 17 [2019-10-13 21:21:21,245 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302526827] [2019-10-13 21:21:21,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:21:21,247 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:21,247 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:21:21,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:21:21,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:21:21,248 INFO L87 Difference]: Start difference. First operand 3269 states and 4162 transitions. Second operand 2 states. [2019-10-13 21:21:21,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:21,289 INFO L93 Difference]: Finished difference Result 3269 states and 4162 transitions. [2019-10-13 21:21:21,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:21:21,290 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 223 [2019-10-13 21:21:21,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:21,291 INFO L225 Difference]: With dead ends: 3269 [2019-10-13 21:21:21,291 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:21:21,302 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:21:21,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:21:21,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:21:21,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:21:21,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:21:21,304 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 223 [2019-10-13 21:21:21,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:21,304 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:21:21,304 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:21:21,304 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:21:21,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:21:21,511 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:21:21,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:21:22,290 INFO L443 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2019-10-13 21:21:22,291 INFO L443 ceAbstractionStarter]: For program point L447-2(lines 447 468) no Hoare annotation was computed. [2019-10-13 21:21:22,291 INFO L443 ceAbstractionStarter]: For program point L469(lines 446 470) no Hoare annotation was computed. [2019-10-13 21:21:22,291 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 422 477) no Hoare annotation was computed. [2019-10-13 21:21:22,291 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 422 477) no Hoare annotation was computed. [2019-10-13 21:21:22,292 INFO L443 ceAbstractionStarter]: For program point L453(lines 453 457) no Hoare annotation was computed. [2019-10-13 21:21:22,292 INFO L443 ceAbstractionStarter]: For program point L453-1(lines 453 457) no Hoare annotation was computed. [2019-10-13 21:21:22,292 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 422 477) no Hoare annotation was computed. [2019-10-13 21:21:22,292 INFO L443 ceAbstractionStarter]: For program point L510(lines 510 514) no Hoare annotation was computed. [2019-10-13 21:21:22,292 INFO L443 ceAbstractionStarter]: For program point L510-1(lines 510 514) no Hoare annotation was computed. [2019-10-13 21:21:22,292 INFO L443 ceAbstractionStarter]: For program point L505(line 505) no Hoare annotation was computed. [2019-10-13 21:21:22,293 INFO L443 ceAbstractionStarter]: For program point L504-2(lines 504 529) no Hoare annotation was computed. [2019-10-13 21:21:22,293 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 478 537) no Hoare annotation was computed. [2019-10-13 21:21:22,293 INFO L443 ceAbstractionStarter]: For program point L530(lines 503 531) no Hoare annotation was computed. [2019-10-13 21:21:22,293 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 478 537) no Hoare annotation was computed. [2019-10-13 21:21:22,293 INFO L443 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2019-10-13 21:21:22,294 INFO L443 ceAbstractionStarter]: For program point L523-1(line 523) no Hoare annotation was computed. [2019-10-13 21:21:22,294 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 478 537) no Hoare annotation was computed. [2019-10-13 21:21:22,294 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 282 288) the Hoare annotation is: true [2019-10-13 21:21:22,294 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 282 288) no Hoare annotation was computed. [2019-10-13 21:21:22,295 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 289 297) no Hoare annotation was computed. [2019-10-13 21:21:22,295 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 289 297) the Hoare annotation is: true [2019-10-13 21:21:22,295 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 289 297) no Hoare annotation was computed. [2019-10-13 21:21:22,296 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 240 262) the Hoare annotation is: true [2019-10-13 21:21:22,296 INFO L446 ceAbstractionStarter]: At program point L252(line 252) the Hoare annotation is: true [2019-10-13 21:21:22,296 INFO L446 ceAbstractionStarter]: At program point L252-1(line 252) the Hoare annotation is: true [2019-10-13 21:21:22,296 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 257) no Hoare annotation was computed. [2019-10-13 21:21:22,297 INFO L443 ceAbstractionStarter]: For program point L250-1(lines 250 257) no Hoare annotation was computed. [2019-10-13 21:21:22,297 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 240 262) no Hoare annotation was computed. [2019-10-13 21:21:22,297 INFO L443 ceAbstractionStarter]: For program point L248(line 248) no Hoare annotation was computed. [2019-10-13 21:21:22,297 INFO L446 ceAbstractionStarter]: At program point L247(line 247) the Hoare annotation is: true [2019-10-13 21:21:22,298 INFO L446 ceAbstractionStarter]: At program point L246(line 246) the Hoare annotation is: true [2019-10-13 21:21:22,298 INFO L446 ceAbstractionStarter]: At program point L246-1(line 246) the Hoare annotation is: true [2019-10-13 21:21:22,299 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 240 262) no Hoare annotation was computed. [2019-10-13 21:21:22,300 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 193 216) no Hoare annotation was computed. [2019-10-13 21:21:22,300 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 193 216) no Hoare annotation was computed. [2019-10-13 21:21:22,300 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 193 216) no Hoare annotation was computed. [2019-10-13 21:21:22,300 INFO L443 ceAbstractionStarter]: For program point L211(line 211) no Hoare annotation was computed. [2019-10-13 21:21:22,300 INFO L443 ceAbstractionStarter]: For program point L210(line 210) no Hoare annotation was computed. [2019-10-13 21:21:22,301 INFO L443 ceAbstractionStarter]: For program point L209(line 209) no Hoare annotation was computed. [2019-10-13 21:21:22,301 INFO L443 ceAbstractionStarter]: For program point L208(line 208) no Hoare annotation was computed. [2019-10-13 21:21:22,301 INFO L443 ceAbstractionStarter]: For program point L207(line 207) no Hoare annotation was computed. [2019-10-13 21:21:22,301 INFO L443 ceAbstractionStarter]: For program point L206(line 206) no Hoare annotation was computed. [2019-10-13 21:21:22,301 INFO L443 ceAbstractionStarter]: For program point L205(line 205) no Hoare annotation was computed. [2019-10-13 21:21:22,301 INFO L443 ceAbstractionStarter]: For program point L204(line 204) no Hoare annotation was computed. [2019-10-13 21:21:22,302 INFO L443 ceAbstractionStarter]: For program point L203(line 203) no Hoare annotation was computed. [2019-10-13 21:21:22,302 INFO L443 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2019-10-13 21:21:22,302 INFO L443 ceAbstractionStarter]: For program point L201(line 201) no Hoare annotation was computed. [2019-10-13 21:21:22,302 INFO L443 ceAbstractionStarter]: For program point L200(line 200) no Hoare annotation was computed. [2019-10-13 21:21:22,302 INFO L443 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2019-10-13 21:21:22,302 INFO L443 ceAbstractionStarter]: For program point L198(line 198) no Hoare annotation was computed. [2019-10-13 21:21:22,303 INFO L443 ceAbstractionStarter]: For program point stopSystemEXIT(lines 954 968) no Hoare annotation was computed. [2019-10-13 21:21:22,303 INFO L446 ceAbstractionStarter]: At program point L960(line 960) the Hoare annotation is: true [2019-10-13 21:21:22,303 INFO L443 ceAbstractionStarter]: For program point L958(lines 958 964) no Hoare annotation was computed. [2019-10-13 21:21:22,303 INFO L446 ceAbstractionStarter]: At program point stopSystemENTRY(lines 954 968) the Hoare annotation is: true [2019-10-13 21:21:22,303 INFO L443 ceAbstractionStarter]: For program point stopSystemFINAL(lines 954 968) no Hoare annotation was computed. [2019-10-13 21:21:22,303 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 871 879) no Hoare annotation was computed. [2019-10-13 21:21:22,304 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 871 879) the Hoare annotation is: true [2019-10-13 21:21:22,304 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 871 879) no Hoare annotation was computed. [2019-10-13 21:21:22,304 INFO L443 ceAbstractionStarter]: For program point L944(lines 944 948) no Hoare annotation was computed. [2019-10-13 21:21:22,304 INFO L446 ceAbstractionStarter]: At program point L942(line 942) the Hoare annotation is: true [2019-10-13 21:21:22,304 INFO L443 ceAbstractionStarter]: For program point L944-2(lines 944 948) no Hoare annotation was computed. [2019-10-13 21:21:22,305 INFO L443 ceAbstractionStarter]: For program point L942-1(line 942) no Hoare annotation was computed. [2019-10-13 21:21:22,305 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 935 953) the Hoare annotation is: true [2019-10-13 21:21:22,305 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 935 953) no Hoare annotation was computed. [2019-10-13 21:21:22,305 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 935 953) no Hoare annotation was computed. [2019-10-13 21:21:22,305 INFO L443 ceAbstractionStarter]: For program point L899-2(lines 899 907) no Hoare annotation was computed. [2019-10-13 21:21:22,305 INFO L443 ceAbstractionStarter]: For program point L887(lines 887 895) no Hoare annotation was computed. [2019-10-13 21:21:22,306 INFO L443 ceAbstractionStarter]: For program point L887-2(lines 887 895) no Hoare annotation was computed. [2019-10-13 21:21:22,306 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 880 915) no Hoare annotation was computed. [2019-10-13 21:21:22,306 INFO L443 ceAbstractionStarter]: For program point L910(line 910) no Hoare annotation was computed. [2019-10-13 21:21:22,306 INFO L443 ceAbstractionStarter]: For program point L910-1(line 910) no Hoare annotation was computed. [2019-10-13 21:21:22,306 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 880 915) no Hoare annotation was computed. [2019-10-13 21:21:22,307 INFO L443 ceAbstractionStarter]: For program point L899(lines 899 907) no Hoare annotation was computed. [2019-10-13 21:21:22,307 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 880 915) no Hoare annotation was computed. [2019-10-13 21:21:22,307 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 275 281) no Hoare annotation was computed. [2019-10-13 21:21:22,307 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 275 281) the Hoare annotation is: true [2019-10-13 21:21:22,307 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 376 421) no Hoare annotation was computed. [2019-10-13 21:21:22,307 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 376 421) no Hoare annotation was computed. [2019-10-13 21:21:22,308 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 376 421) no Hoare annotation was computed. [2019-10-13 21:21:22,308 INFO L443 ceAbstractionStarter]: For program point L703(lines 703 723) no Hoare annotation was computed. [2019-10-13 21:21:22,308 INFO L443 ceAbstractionStarter]: For program point L703-1(lines 703 723) no Hoare annotation was computed. [2019-10-13 21:21:22,308 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 689 734) no Hoare annotation was computed. [2019-10-13 21:21:22,309 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 689 734) no Hoare annotation was computed. [2019-10-13 21:21:22,309 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 689 734) no Hoare annotation was computed. [2019-10-13 21:21:22,310 INFO L443 ceAbstractionStarter]: For program point L709(lines 709 716) no Hoare annotation was computed. [2019-10-13 21:21:22,310 INFO L446 ceAbstractionStarter]: At program point runTestENTRY(lines 226 236) the Hoare annotation is: true [2019-10-13 21:21:22,310 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 226 236) no Hoare annotation was computed. [2019-10-13 21:21:22,310 INFO L446 ceAbstractionStarter]: At program point L231(line 231) the Hoare annotation is: true [2019-10-13 21:21:22,310 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 226 236) no Hoare annotation was computed. [2019-10-13 21:21:22,310 INFO L446 ceAbstractionStarter]: At program point L865(line 865) the Hoare annotation is: true [2019-10-13 21:21:22,311 INFO L443 ceAbstractionStarter]: For program point L865-1(line 865) no Hoare annotation was computed. [2019-10-13 21:21:22,311 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 860 870) the Hoare annotation is: true [2019-10-13 21:21:22,311 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 860 870) no Hoare annotation was computed. [2019-10-13 21:21:22,311 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 860 870) no Hoare annotation was computed. [2019-10-13 21:21:22,311 INFO L446 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 852 859) the Hoare annotation is: true [2019-10-13 21:21:22,312 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 852 859) no Hoare annotation was computed. [2019-10-13 21:21:22,312 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 852 859) no Hoare annotation was computed. [2019-10-13 21:21:22,312 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 127 140) no Hoare annotation was computed. [2019-10-13 21:21:22,312 INFO L443 ceAbstractionStarter]: For program point L131(lines 131 137) no Hoare annotation was computed. [2019-10-13 21:21:22,312 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 127 140) the Hoare annotation is: true [2019-10-13 21:21:22,312 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 127 140) no Hoare annotation was computed. [2019-10-13 21:21:22,313 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 801 825) no Hoare annotation was computed. [2019-10-13 21:21:22,313 INFO L446 ceAbstractionStarter]: At program point L820(line 820) the Hoare annotation is: true [2019-10-13 21:21:22,313 INFO L446 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 801 825) the Hoare annotation is: true [2019-10-13 21:21:22,313 INFO L443 ceAbstractionStarter]: For program point L820-1(lines 801 825) no Hoare annotation was computed. [2019-10-13 21:21:22,313 INFO L446 ceAbstractionStarter]: At program point L815(line 815) the Hoare annotation is: true [2019-10-13 21:21:22,313 INFO L446 ceAbstractionStarter]: At program point L811(line 811) the Hoare annotation is: true [2019-10-13 21:21:22,314 INFO L443 ceAbstractionStarter]: For program point L809(lines 809 817) no Hoare annotation was computed. [2019-10-13 21:21:22,314 INFO L446 ceAbstractionStarter]: At program point L807(line 807) the Hoare annotation is: true [2019-10-13 21:21:22,314 INFO L443 ceAbstractionStarter]: For program point L807-1(line 807) no Hoare annotation was computed. [2019-10-13 21:21:22,314 INFO L443 ceAbstractionStarter]: For program point L805(lines 805 822) no Hoare annotation was computed. [2019-10-13 21:21:22,314 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 767 773) no Hoare annotation was computed. [2019-10-13 21:21:22,314 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 767 773) the Hoare annotation is: true [2019-10-13 21:21:22,315 INFO L446 ceAbstractionStarter]: At program point testENTRY(lines 301 368) the Hoare annotation is: true [2019-10-13 21:21:22,315 INFO L446 ceAbstractionStarter]: At program point L351(line 351) the Hoare annotation is: true [2019-10-13 21:21:22,315 INFO L443 ceAbstractionStarter]: For program point L349(lines 349 355) no Hoare annotation was computed. [2019-10-13 21:21:22,315 INFO L446 ceAbstractionStarter]: At program point L349-1(lines 341 356) the Hoare annotation is: true [2019-10-13 21:21:22,315 INFO L443 ceAbstractionStarter]: For program point L312(lines 311 360) no Hoare annotation was computed. [2019-10-13 21:21:22,315 INFO L446 ceAbstractionStarter]: At program point L343(line 343) the Hoare annotation is: true [2019-10-13 21:21:22,316 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 301 368) no Hoare annotation was computed. [2019-10-13 21:21:22,316 INFO L443 ceAbstractionStarter]: For program point L341(lines 341 356) no Hoare annotation was computed. [2019-10-13 21:21:22,316 INFO L446 ceAbstractionStarter]: At program point L333(line 333) the Hoare annotation is: true [2019-10-13 21:21:22,316 INFO L443 ceAbstractionStarter]: For program point L331(lines 331 337) no Hoare annotation was computed. [2019-10-13 21:21:22,316 INFO L443 ceAbstractionStarter]: For program point L331-1(lines 331 337) no Hoare annotation was computed. [2019-10-13 21:21:22,316 INFO L446 ceAbstractionStarter]: At program point L358(lines 311 360) the Hoare annotation is: true [2019-10-13 21:21:22,317 INFO L446 ceAbstractionStarter]: At program point L323(line 323) the Hoare annotation is: true [2019-10-13 21:21:22,317 INFO L443 ceAbstractionStarter]: For program point L321(lines 321 327) no Hoare annotation was computed. [2019-10-13 21:21:22,317 INFO L443 ceAbstractionStarter]: For program point L321-1(lines 321 327) no Hoare annotation was computed. [2019-10-13 21:21:22,317 INFO L443 ceAbstractionStarter]: For program point L313(lines 313 317) no Hoare annotation was computed. [2019-10-13 21:21:22,317 INFO L446 ceAbstractionStarter]: At program point L361(lines 310 362) the Hoare annotation is: true [2019-10-13 21:21:22,317 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 301 368) no Hoare annotation was computed. [2019-10-13 21:21:22,318 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 643 688) no Hoare annotation was computed. [2019-10-13 21:21:22,318 INFO L443 ceAbstractionStarter]: For program point L663(lines 663 670) no Hoare annotation was computed. [2019-10-13 21:21:22,318 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 643 688) no Hoare annotation was computed. [2019-10-13 21:21:22,318 INFO L443 ceAbstractionStarter]: For program point L657(lines 657 677) no Hoare annotation was computed. [2019-10-13 21:21:22,318 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 643 688) no Hoare annotation was computed. [2019-10-13 21:21:22,318 INFO L443 ceAbstractionStarter]: For program point L657-1(lines 657 677) no Hoare annotation was computed. [2019-10-13 21:21:22,319 INFO L446 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 826 833) the Hoare annotation is: true [2019-10-13 21:21:22,319 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 826 833) no Hoare annotation was computed. [2019-10-13 21:21:22,319 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 826 833) no Hoare annotation was computed. [2019-10-13 21:21:22,319 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 141 149) no Hoare annotation was computed. [2019-10-13 21:21:22,319 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 141 149) the Hoare annotation is: true [2019-10-13 21:21:22,319 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 141 149) no Hoare annotation was computed. [2019-10-13 21:21:22,319 INFO L446 ceAbstractionStarter]: At program point L993(line 993) the Hoare annotation is: true [2019-10-13 21:21:22,320 INFO L443 ceAbstractionStarter]: For program point L993-1(line 993) no Hoare annotation was computed. [2019-10-13 21:21:22,320 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 987 1015) the Hoare annotation is: true [2019-10-13 21:21:22,320 INFO L446 ceAbstractionStarter]: At program point L1002(line 1002) the Hoare annotation is: true [2019-10-13 21:21:22,320 INFO L443 ceAbstractionStarter]: For program point L1000(lines 1000 1006) no Hoare annotation was computed. [2019-10-13 21:21:22,320 INFO L443 ceAbstractionStarter]: For program point L999(lines 999 1009) no Hoare annotation was computed. [2019-10-13 21:21:22,320 INFO L446 ceAbstractionStarter]: At program point L997(line 997) the Hoare annotation is: true [2019-10-13 21:21:22,321 INFO L443 ceAbstractionStarter]: For program point L997-1(line 997) no Hoare annotation was computed. [2019-10-13 21:21:22,321 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__2EXIT(lines 987 1015) no Hoare annotation was computed. [2019-10-13 21:21:22,321 INFO L443 ceAbstractionStarter]: For program point L995(lines 995 1012) no Hoare annotation was computed. [2019-10-13 21:21:22,321 INFO L443 ceAbstractionStarter]: For program point L995-1(lines 987 1015) no Hoare annotation was computed. [2019-10-13 21:21:22,321 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 95 117) no Hoare annotation was computed. [2019-10-13 21:21:22,322 INFO L443 ceAbstractionStarter]: For program point L103(lines 103 111) no Hoare annotation was computed. [2019-10-13 21:21:22,322 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 95 117) no Hoare annotation was computed. [2019-10-13 21:21:22,322 INFO L443 ceAbstractionStarter]: For program point L103-2(lines 103 111) no Hoare annotation was computed. [2019-10-13 21:21:22,322 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 95 117) no Hoare annotation was computed. [2019-10-13 21:21:22,322 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 979 986) the Hoare annotation is: true [2019-10-13 21:21:22,322 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1FINAL(lines 979 986) no Hoare annotation was computed. [2019-10-13 21:21:22,323 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1EXIT(lines 979 986) no Hoare annotation was computed. [2019-10-13 21:21:22,323 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 265 274) no Hoare annotation was computed. [2019-10-13 21:21:22,323 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 265 274) no Hoare annotation was computed. [2019-10-13 21:21:22,324 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 265 274) no Hoare annotation was computed. [2019-10-13 21:21:22,324 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 540 642) no Hoare annotation was computed. [2019-10-13 21:21:22,324 INFO L443 ceAbstractionStarter]: For program point L605(line 605) no Hoare annotation was computed. [2019-10-13 21:21:22,324 INFO L443 ceAbstractionStarter]: For program point L605-1(line 605) no Hoare annotation was computed. [2019-10-13 21:21:22,325 INFO L443 ceAbstractionStarter]: For program point L564(lines 564 568) no Hoare annotation was computed. [2019-10-13 21:21:22,325 INFO L443 ceAbstractionStarter]: For program point L628(lines 628 639) no Hoare annotation was computed. [2019-10-13 21:21:22,325 INFO L443 ceAbstractionStarter]: For program point L591(lines 591 595) no Hoare annotation was computed. [2019-10-13 21:21:22,325 INFO L443 ceAbstractionStarter]: For program point L589-2(lines 589 609) no Hoare annotation was computed. [2019-10-13 21:21:22,325 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 540 642) no Hoare annotation was computed. [2019-10-13 21:21:22,325 INFO L443 ceAbstractionStarter]: For program point L610(lines 588 611) no Hoare annotation was computed. [2019-10-13 21:21:22,326 INFO L443 ceAbstractionStarter]: For program point L569(lines 569 585) no Hoare annotation was computed. [2019-10-13 21:21:22,326 INFO L443 ceAbstractionStarter]: For program point L629(lines 629 636) no Hoare annotation was computed. [2019-10-13 21:21:22,326 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 540 642) no Hoare annotation was computed. [2019-10-13 21:21:22,326 INFO L443 ceAbstractionStarter]: For program point L590(lines 589 609) no Hoare annotation was computed. [2019-10-13 21:21:22,326 INFO L443 ceAbstractionStarter]: For program point L621(line 621) no Hoare annotation was computed. [2019-10-13 21:21:22,327 INFO L443 ceAbstractionStarter]: For program point L621-1(line 621) no Hoare annotation was computed. [2019-10-13 21:21:22,327 INFO L443 ceAbstractionStarter]: For program point L586(lines 586 627) no Hoare annotation was computed. [2019-10-13 21:21:22,327 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:21:22,327 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2019-10-13 21:21:22,327 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:21:22,328 INFO L446 ceAbstractionStarter]: At program point L846(line 846) the Hoare annotation is: true [2019-10-13 21:21:22,329 INFO L443 ceAbstractionStarter]: For program point L846-1(lines 835 851) no Hoare annotation was computed. [2019-10-13 21:21:22,329 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 835 851) no Hoare annotation was computed. [2019-10-13 21:21:22,329 INFO L443 ceAbstractionStarter]: For program point L842(lines 842 848) no Hoare annotation was computed. [2019-10-13 21:21:22,329 INFO L446 ceAbstractionStarter]: At program point activatePumpENTRY(lines 835 851) the Hoare annotation is: true [2019-10-13 21:21:22,329 INFO L446 ceAbstractionStarter]: At program point L840(line 840) the Hoare annotation is: true [2019-10-13 21:21:22,329 INFO L443 ceAbstractionStarter]: For program point L840-1(line 840) no Hoare annotation was computed. [2019-10-13 21:21:22,329 INFO L443 ceAbstractionStarter]: For program point getWaterLevelENTRY(lines 118 126) no Hoare annotation was computed. [2019-10-13 21:21:22,329 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 118 126) no Hoare annotation was computed. [2019-10-13 21:21:22,330 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 118 126) no Hoare annotation was computed. [2019-10-13 21:21:22,330 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 916 934) no Hoare annotation was computed. [2019-10-13 21:21:22,330 INFO L443 ceAbstractionStarter]: For program point L925(lines 925 929) no Hoare annotation was computed. [2019-10-13 21:21:22,330 INFO L446 ceAbstractionStarter]: At program point L923(line 923) the Hoare annotation is: true [2019-10-13 21:21:22,330 INFO L443 ceAbstractionStarter]: For program point L925-2(lines 925 929) no Hoare annotation was computed. [2019-10-13 21:21:22,330 INFO L443 ceAbstractionStarter]: For program point L923-1(line 923) no Hoare annotation was computed. [2019-10-13 21:21:22,330 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 916 934) the Hoare annotation is: true [2019-10-13 21:21:22,330 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 916 934) no Hoare annotation was computed. [2019-10-13 21:21:22,330 INFO L443 ceAbstractionStarter]: For program point L78-1(lines 74 85) no Hoare annotation was computed. [2019-10-13 21:21:22,331 INFO L446 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 74 85) the Hoare annotation is: true [2019-10-13 21:21:22,331 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 74 85) no Hoare annotation was computed. [2019-10-13 21:21:22,331 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:21:22,331 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-13 21:21:22,331 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:21:22,331 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 86 94) the Hoare annotation is: true [2019-10-13 21:21:22,332 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 86 94) no Hoare annotation was computed. [2019-10-13 21:21:22,332 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 86 94) no Hoare annotation was computed. [2019-10-13 21:21:22,333 INFO L446 ceAbstractionStarter]: At program point L756(line 756) the Hoare annotation is: true [2019-10-13 21:21:22,333 INFO L446 ceAbstractionStarter]: At program point L754(lines 754 760) the Hoare annotation is: true [2019-10-13 21:21:22,333 INFO L446 ceAbstractionStarter]: At program point timeShiftENTRY(lines 743 766) the Hoare annotation is: true [2019-10-13 21:21:22,333 INFO L446 ceAbstractionStarter]: At program point L749(line 749) the Hoare annotation is: true [2019-10-13 21:21:22,333 INFO L443 ceAbstractionStarter]: For program point L747(lines 746 765) no Hoare annotation was computed. [2019-10-13 21:21:22,333 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 743 766) no Hoare annotation was computed. [2019-10-13 21:21:22,333 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 743 766) no Hoare annotation was computed. [2019-10-13 21:21:22,333 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 162 191) no Hoare annotation was computed. [2019-10-13 21:21:22,333 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 162 191) the Hoare annotation is: true [2019-10-13 21:21:22,334 INFO L446 ceAbstractionStarter]: At program point L187(lines 162 191) the Hoare annotation is: true [2019-10-13 21:21:22,334 INFO L443 ceAbstractionStarter]: For program point L183(line 183) no Hoare annotation was computed. [2019-10-13 21:21:22,334 INFO L443 ceAbstractionStarter]: For program point L176(lines 176 180) no Hoare annotation was computed. [2019-10-13 21:21:22,334 INFO L446 ceAbstractionStarter]: At program point L176-1(lines 176 180) the Hoare annotation is: true [2019-10-13 21:21:22,334 INFO L443 ceAbstractionStarter]: For program point L173(line 173) no Hoare annotation was computed. [2019-10-13 21:21:22,334 INFO L446 ceAbstractionStarter]: At program point L172-2(lines 172 186) the Hoare annotation is: true [2019-10-13 21:21:22,334 INFO L446 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: true [2019-10-13 21:21:22,334 INFO L443 ceAbstractionStarter]: For program point L168-1(line 168) no Hoare annotation was computed. [2019-10-13 21:21:22,335 INFO L446 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 50 61) the Hoare annotation is: true [2019-10-13 21:21:22,335 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 50 61) no Hoare annotation was computed. [2019-10-13 21:21:22,335 INFO L443 ceAbstractionStarter]: For program point L54-1(lines 50 61) no Hoare annotation was computed. [2019-10-13 21:21:22,335 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 217 223) no Hoare annotation was computed. [2019-10-13 21:21:22,335 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 217 223) the Hoare annotation is: true [2019-10-13 21:21:22,335 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:21:22,335 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-13 21:21:22,335 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:21:22,336 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:21:22,336 INFO L443 ceAbstractionStarter]: For program point startSystemEXIT(lines 969 976) no Hoare annotation was computed. [2019-10-13 21:21:22,336 INFO L446 ceAbstractionStarter]: At program point startSystemENTRY(lines 969 976) the Hoare annotation is: true [2019-10-13 21:21:22,336 INFO L443 ceAbstractionStarter]: For program point startSystemFINAL(lines 969 976) no Hoare annotation was computed. [2019-10-13 21:21:22,336 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 775 799) the Hoare annotation is: true [2019-10-13 21:21:22,336 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 775 799) no Hoare annotation was computed. [2019-10-13 21:21:22,336 INFO L446 ceAbstractionStarter]: At program point L794(line 794) the Hoare annotation is: true [2019-10-13 21:21:22,336 INFO L443 ceAbstractionStarter]: For program point L794-1(lines 775 799) no Hoare annotation was computed. [2019-10-13 21:21:22,337 INFO L446 ceAbstractionStarter]: At program point L789(line 789) the Hoare annotation is: true [2019-10-13 21:21:22,337 INFO L446 ceAbstractionStarter]: At program point L785(line 785) the Hoare annotation is: true [2019-10-13 21:21:22,337 INFO L443 ceAbstractionStarter]: For program point L783(lines 783 791) no Hoare annotation was computed. [2019-10-13 21:21:22,337 INFO L446 ceAbstractionStarter]: At program point L781(line 781) the Hoare annotation is: true [2019-10-13 21:21:22,337 INFO L443 ceAbstractionStarter]: For program point L781-1(line 781) no Hoare annotation was computed. [2019-10-13 21:21:22,337 INFO L443 ceAbstractionStarter]: For program point L779(lines 779 796) no Hoare annotation was computed. [2019-10-13 21:21:22,337 INFO L443 ceAbstractionStarter]: For program point L66-1(lines 62 73) no Hoare annotation was computed. [2019-10-13 21:21:22,337 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 62 73) no Hoare annotation was computed. [2019-10-13 21:21:22,338 INFO L446 ceAbstractionStarter]: At program point waterRiseENTRY(lines 62 73) the Hoare annotation is: true [2019-10-13 21:21:22,338 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 151 158) no Hoare annotation was computed. [2019-10-13 21:21:22,338 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 151 158) the Hoare annotation is: true [2019-10-13 21:21:22,340 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 151 158) no Hoare annotation was computed. [2019-10-13 21:21:22,340 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2019-10-13 21:21:22,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:21:22 BoogieIcfgContainer [2019-10-13 21:21:22,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:21:22,360 INFO L168 Benchmark]: Toolchain (without parser) took 14810.12 ms. Allocated memory was 145.2 MB in the beginning and 555.2 MB in the end (delta: 410.0 MB). Free memory was 102.3 MB in the beginning and 408.6 MB in the end (delta: -306.3 MB). Peak memory consumption was 344.1 MB. Max. memory is 7.1 GB. [2019-10-13 21:21:22,371 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-13 21:21:22,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.03 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 102.1 MB in the beginning and 169.1 MB in the end (delta: -67.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:21:22,377 INFO L168 Benchmark]: Boogie Preprocessor took 89.72 ms. Allocated memory is still 203.4 MB. Free memory was 169.1 MB in the beginning and 165.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:21:22,378 INFO L168 Benchmark]: RCFGBuilder took 1198.25 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.0 MB in the beginning and 192.5 MB in the end (delta: -27.5 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:21:22,382 INFO L168 Benchmark]: TraceAbstraction took 12840.37 ms. Allocated memory was 235.9 MB in the beginning and 555.2 MB in the end (delta: 319.3 MB). Free memory was 191.1 MB in the beginning and 408.6 MB in the end (delta: -217.5 MB). Peak memory consumption was 342.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:21:22,391 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 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 676.03 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 102.1 MB in the beginning and 169.1 MB in the end (delta: -67.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.72 ms. Allocated memory is still 203.4 MB. Free memory was 169.1 MB in the beginning and 165.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1198.25 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.0 MB in the beginning and 192.5 MB in the end (delta: -27.5 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12840.37 ms. Allocated memory was 235.9 MB in the beginning and 555.2 MB in the end (delta: 319.3 MB). Free memory was 191.1 MB in the beginning and 408.6 MB in the end (delta: -217.5 MB). Peak memory consumption was 342.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 155]: 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: 162]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 311]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 310]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 257 locations, 1 error locations. Result: SAFE, OverallTime: 12.7s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, HoareTripleCheckerStatistics: 2256 SDtfs, 1355 SDslu, 5038 SDs, 0 SdLazy, 1724 SolverSat, 335 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 994 GetRequests, 913 SyntacticMatches, 9 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3269occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 579 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 4562 PreInvPairs, 4563 NumberOfFragments, 76 HoareAnnotationTreeSize, 4562 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 70 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 1878 NumberOfCodeBlocks, 1878 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2418 ConstructedInterpolants, 0 QuantifiedInterpolants, 649249 SizeOfPredicates, 16 NumberOfNonLiveVariables, 3031 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 736/833 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 145, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 0.7387387387387387, AVG_WEAKENED_CONJUNCTS: 0.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...