/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 10:35:22,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 10:35:22,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 10:35:22,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 10:35:22,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 10:35:22,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 10:35:22,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 10:35:22,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 10:35:22,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 10:35:22,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 10:35:22,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 10:35:22,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 10:35:22,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 10:35:22,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 10:35:22,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 10:35:22,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 10:35:22,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 10:35:22,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 10:35:22,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 10:35:22,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 10:35:22,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 10:35:22,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 10:35:22,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 10:35:22,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 10:35:22,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 10:35:22,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 10:35:22,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 10:35:22,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 10:35:22,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 10:35:22,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 10:35:22,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 10:35:22,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 10:35:22,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 10:35:22,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 10:35:22,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 10:35:22,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 10:35:22,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 10:35:22,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 10:35:22,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 10:35:22,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 10:35:22,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 10:35:22,181 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 [2020-07-21 10:35:22,218 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 10:35:22,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 10:35:22,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 10:35:22,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 10:35:22,220 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 10:35:22,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 10:35:22,220 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 10:35:22,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 10:35:22,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 10:35:22,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 10:35:22,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 10:35:22,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 10:35:22,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 10:35:22,222 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 10:35:22,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 10:35:22,222 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 10:35:22,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 10:35:22,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 10:35:22,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 10:35:22,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 10:35:22,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 10:35:22,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:35:22,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 10:35:22,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 10:35:22,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 10:35:22,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 10:35:22,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:22,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 10:35:22,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 10:35:22,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 10:35:22,513 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 10:35:22,526 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 10:35:22,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 10:35:22,531 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 10:35:22,531 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 10:35:22,532 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-07-21 10:35:22,604 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7d91c0ab/c24f3e4e61b2403382a47f2818a8a8af/FLAGd2a5ceb48 [2020-07-21 10:35:23,119 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 10:35:23,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-07-21 10:35:23,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7d91c0ab/c24f3e4e61b2403382a47f2818a8a8af/FLAGd2a5ceb48 [2020-07-21 10:35:23,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7d91c0ab/c24f3e4e61b2403382a47f2818a8a8af [2020-07-21 10:35:23,392 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 10:35:23,395 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 10:35:23,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 10:35:23,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 10:35:23,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 10:35:23,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:35:23" (1/1) ... [2020-07-21 10:35:23,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e65e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:23, skipping insertion in model container [2020-07-21 10:35:23,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:35:23" (1/1) ... [2020-07-21 10:35:23,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 10:35:23,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 10:35:23,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:35:23,944 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 10:35:24,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:35:24,092 INFO L208 MainTranslator]: Completed translation [2020-07-21 10:35:24,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:24 WrapperNode [2020-07-21 10:35:24,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 10:35:24,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 10:35:24,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 10:35:24,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 10:35:24,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:24" (1/1) ... [2020-07-21 10:35:24,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:24" (1/1) ... [2020-07-21 10:35:24,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:24" (1/1) ... [2020-07-21 10:35:24,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:24" (1/1) ... [2020-07-21 10:35:24,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:24" (1/1) ... [2020-07-21 10:35:24,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:24" (1/1) ... [2020-07-21 10:35:24,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:24" (1/1) ... [2020-07-21 10:35:24,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 10:35:24,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 10:35:24,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 10:35:24,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 10:35:24,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:24" (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 [2020-07-21 10:35:24,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 10:35:24,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 10:35:24,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 10:35:24,292 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 10:35:24,292 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 10:35:24,292 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 10:35:24,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 10:35:24,293 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 10:35:24,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 10:35:24,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 10:35:24,293 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 10:35:24,293 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 10:35:24,294 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 10:35:24,294 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-21 10:35:24,294 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 10:35:24,294 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 10:35:24,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 10:35:24,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 10:35:24,294 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 10:35:24,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 10:35:24,295 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 10:35:24,295 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 10:35:24,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 10:35:24,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-21 10:35:24,295 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 10:35:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 10:35:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 10:35:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 10:35:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 10:35:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 10:35:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 10:35:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 10:35:24,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 10:35:24,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 10:35:24,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 10:35:24,297 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 10:35:24,297 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 10:35:24,298 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 10:35:24,298 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 10:35:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 10:35:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 10:35:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 10:35:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 10:35:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 10:35:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 10:35:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 10:35:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 10:35:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 10:35:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 10:35:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 10:35:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 10:35:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 10:35:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 10:35:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 10:35:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 10:35:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 10:35:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-21 10:35:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 10:35:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 10:35:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 10:35:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-21 10:35:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 10:35:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 10:35:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 10:35:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 10:35:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 10:35:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 10:35:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 10:35:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 10:35:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 10:35:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 10:35:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 10:35:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 10:35:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 10:35:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 10:35:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 10:35:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 10:35:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 10:35:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 10:35:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 10:35:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 10:35:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 10:35:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 10:35:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 10:35:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 10:35:24,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 10:35:24,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 10:35:24,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 10:35:24,304 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 10:35:24,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 10:35:24,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 10:35:24,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 10:35:25,360 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 10:35:25,360 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 10:35:25,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:35:25 BoogieIcfgContainer [2020-07-21 10:35:25,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 10:35:25,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 10:35:25,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 10:35:25,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 10:35:25,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:35:23" (1/3) ... [2020-07-21 10:35:25,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17df9421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:35:25, skipping insertion in model container [2020-07-21 10:35:25,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:24" (2/3) ... [2020-07-21 10:35:25,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17df9421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:35:25, skipping insertion in model container [2020-07-21 10:35:25,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:35:25" (3/3) ... [2020-07-21 10:35:25,380 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2020-07-21 10:35:25,392 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 10:35:25,401 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 10:35:25,415 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 10:35:25,439 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 10:35:25,439 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 10:35:25,439 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 10:35:25,439 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 10:35:25,440 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 10:35:25,440 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 10:35:25,440 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 10:35:25,440 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 10:35:25,463 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-07-21 10:35:25,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 10:35:25,473 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:25,474 INFO L422 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] [2020-07-21 10:35:25,475 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:25,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:25,481 INFO L82 PathProgramCache]: Analyzing trace with hash 2058113087, now seen corresponding path program 1 times [2020-07-21 10:35:25,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:25,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530466315] [2020-07-21 10:35:25,491 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:25,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 10:35:25,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:25,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:35:25,817 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:25,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530466315] [2020-07-21 10:35:25,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:25,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 10:35:25,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055307] [2020-07-21 10:35:25,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 10:35:25,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:25,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 10:35:25,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:35:25,842 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 2 states. [2020-07-21 10:35:25,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:25,882 INFO L93 Difference]: Finished difference Result 252 states and 311 transitions. [2020-07-21 10:35:25,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 10:35:25,883 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-21 10:35:25,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:25,901 INFO L225 Difference]: With dead ends: 252 [2020-07-21 10:35:25,901 INFO L226 Difference]: Without dead ends: 126 [2020-07-21 10:35:25,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:35:25,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-07-21 10:35:25,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-07-21 10:35:25,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-07-21 10:35:25,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2020-07-21 10:35:25,965 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 46 [2020-07-21 10:35:25,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:25,965 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2020-07-21 10:35:25,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 10:35:25,966 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2020-07-21 10:35:25,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 10:35:25,969 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:25,970 INFO L422 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] [2020-07-21 10:35:26,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:26,183 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:26,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:26,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1232914971, now seen corresponding path program 1 times [2020-07-21 10:35:26,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:26,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533482454] [2020-07-21 10:35:26,186 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:26,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 10:35:26,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:26,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:35:26,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:26,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533482454] [2020-07-21 10:35:26,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:26,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:35:26,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792714282] [2020-07-21 10:35:26,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:35:26,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:26,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:35:26,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:35:26,455 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand 3 states. [2020-07-21 10:35:26,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:26,479 INFO L93 Difference]: Finished difference Result 192 states and 223 transitions. [2020-07-21 10:35:26,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:35:26,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 10:35:26,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:26,485 INFO L225 Difference]: With dead ends: 192 [2020-07-21 10:35:26,485 INFO L226 Difference]: Without dead ends: 117 [2020-07-21 10:35:26,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:35:26,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-07-21 10:35:26,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-07-21 10:35:26,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-07-21 10:35:26,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2020-07-21 10:35:26,516 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 47 [2020-07-21 10:35:26,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:26,517 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2020-07-21 10:35:26,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:35:26,517 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2020-07-21 10:35:26,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 10:35:26,521 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:26,522 INFO L422 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] [2020-07-21 10:35:26,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:26,737 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:26,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:26,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1264843506, now seen corresponding path program 1 times [2020-07-21 10:35:26,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:26,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466282036] [2020-07-21 10:35:26,739 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:26,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 10:35:26,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:27,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:35:27,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:27,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466282036] [2020-07-21 10:35:27,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:27,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:35:27,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593409147] [2020-07-21 10:35:27,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:35:27,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:27,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:35:27,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:35:27,034 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand 3 states. [2020-07-21 10:35:27,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:27,064 INFO L93 Difference]: Finished difference Result 301 states and 357 transitions. [2020-07-21 10:35:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:35:27,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-21 10:35:27,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:27,069 INFO L225 Difference]: With dead ends: 301 [2020-07-21 10:35:27,069 INFO L226 Difference]: Without dead ends: 208 [2020-07-21 10:35:27,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:35:27,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-07-21 10:35:27,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 198. [2020-07-21 10:35:27,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-07-21 10:35:27,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 233 transitions. [2020-07-21 10:35:27,097 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 233 transitions. Word has length 51 [2020-07-21 10:35:27,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:27,098 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 233 transitions. [2020-07-21 10:35:27,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:35:27,098 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 233 transitions. [2020-07-21 10:35:27,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-21 10:35:27,100 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:27,101 INFO L422 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] [2020-07-21 10:35:27,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:27,314 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:27,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:27,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1557328557, now seen corresponding path program 1 times [2020-07-21 10:35:27,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:27,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017100644] [2020-07-21 10:35:27,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:27,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 10:35:27,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:27,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:35:27,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:27,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017100644] [2020-07-21 10:35:27,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:27,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:35:27,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129971124] [2020-07-21 10:35:27,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:35:27,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:27,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:35:27,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:35:27,548 INFO L87 Difference]: Start difference. First operand 198 states and 233 transitions. Second operand 6 states. [2020-07-21 10:35:27,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:27,789 INFO L93 Difference]: Finished difference Result 476 states and 582 transitions. [2020-07-21 10:35:27,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 10:35:27,789 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-07-21 10:35:27,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:27,793 INFO L225 Difference]: With dead ends: 476 [2020-07-21 10:35:27,793 INFO L226 Difference]: Without dead ends: 302 [2020-07-21 10:35:27,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 10:35:27,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-07-21 10:35:27,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 294. [2020-07-21 10:35:27,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 10:35:27,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 351 transitions. [2020-07-21 10:35:27,826 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 351 transitions. Word has length 57 [2020-07-21 10:35:27,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:27,826 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 351 transitions. [2020-07-21 10:35:27,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:35:27,827 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 351 transitions. [2020-07-21 10:35:27,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-07-21 10:35:27,829 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:27,829 INFO L422 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] [2020-07-21 10:35:28,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:28,043 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:28,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:28,043 INFO L82 PathProgramCache]: Analyzing trace with hash 806006492, now seen corresponding path program 1 times [2020-07-21 10:35:28,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:28,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755235168] [2020-07-21 10:35:28,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:28,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 10:35:28,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:28,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 10:35:28,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:28,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755235168] [2020-07-21 10:35:28,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:28,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:35:28,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262666973] [2020-07-21 10:35:28,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:35:28,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:28,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:35:28,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:35:28,264 INFO L87 Difference]: Start difference. First operand 294 states and 351 transitions. Second operand 3 states. [2020-07-21 10:35:28,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:28,307 INFO L93 Difference]: Finished difference Result 826 states and 1051 transitions. [2020-07-21 10:35:28,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:35:28,307 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2020-07-21 10:35:28,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:28,313 INFO L225 Difference]: With dead ends: 826 [2020-07-21 10:35:28,313 INFO L226 Difference]: Without dead ends: 556 [2020-07-21 10:35:28,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:35:28,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-07-21 10:35:28,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 553. [2020-07-21 10:35:28,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-07-21 10:35:28,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 688 transitions. [2020-07-21 10:35:28,380 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 688 transitions. Word has length 89 [2020-07-21 10:35:28,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:28,381 INFO L479 AbstractCegarLoop]: Abstraction has 553 states and 688 transitions. [2020-07-21 10:35:28,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:35:28,381 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 688 transitions. [2020-07-21 10:35:28,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-21 10:35:28,385 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:28,385 INFO L422 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] [2020-07-21 10:35:28,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:28,600 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:28,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:28,601 INFO L82 PathProgramCache]: Analyzing trace with hash 733666945, now seen corresponding path program 1 times [2020-07-21 10:35:28,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:28,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118020558] [2020-07-21 10:35:28,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:28,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 10:35:28,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:28,821 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 10:35:28,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:28,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118020558] [2020-07-21 10:35:28,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:28,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:35:28,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674491591] [2020-07-21 10:35:28,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:35:28,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:28,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:35:28,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:35:28,824 INFO L87 Difference]: Start difference. First operand 553 states and 688 transitions. Second operand 6 states. [2020-07-21 10:35:29,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:29,727 INFO L93 Difference]: Finished difference Result 1802 states and 2423 transitions. [2020-07-21 10:35:29,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 10:35:29,729 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-07-21 10:35:29,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:29,740 INFO L225 Difference]: With dead ends: 1802 [2020-07-21 10:35:29,741 INFO L226 Difference]: Without dead ends: 1273 [2020-07-21 10:35:29,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 10:35:29,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2020-07-21 10:35:29,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 1167. [2020-07-21 10:35:29,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2020-07-21 10:35:29,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1511 transitions. [2020-07-21 10:35:29,845 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1511 transitions. Word has length 93 [2020-07-21 10:35:29,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:29,847 INFO L479 AbstractCegarLoop]: Abstraction has 1167 states and 1511 transitions. [2020-07-21 10:35:29,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:35:29,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1511 transitions. [2020-07-21 10:35:29,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-07-21 10:35:29,854 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:29,856 INFO L422 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] [2020-07-21 10:35:30,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:30,057 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:30,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:30,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1164932965, now seen corresponding path program 1 times [2020-07-21 10:35:30,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:30,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136713474] [2020-07-21 10:35:30,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:30,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 10:35:30,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:30,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 10:35:30,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:30,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136713474] [2020-07-21 10:35:30,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:30,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:35:30,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712705709] [2020-07-21 10:35:30,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:35:30,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:30,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:35:30,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:35:30,300 INFO L87 Difference]: Start difference. First operand 1167 states and 1511 transitions. Second operand 6 states. [2020-07-21 10:35:30,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:30,564 INFO L93 Difference]: Finished difference Result 3378 states and 4575 transitions. [2020-07-21 10:35:30,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 10:35:30,565 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2020-07-21 10:35:30,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:30,580 INFO L225 Difference]: With dead ends: 3378 [2020-07-21 10:35:30,580 INFO L226 Difference]: Without dead ends: 2235 [2020-07-21 10:35:30,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 10:35:30,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2020-07-21 10:35:30,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 2199. [2020-07-21 10:35:30,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2199 states. [2020-07-21 10:35:30,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2199 states to 2199 states and 2860 transitions. [2020-07-21 10:35:30,709 INFO L78 Accepts]: Start accepts. Automaton has 2199 states and 2860 transitions. Word has length 89 [2020-07-21 10:35:30,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:30,709 INFO L479 AbstractCegarLoop]: Abstraction has 2199 states and 2860 transitions. [2020-07-21 10:35:30,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:35:30,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2199 states and 2860 transitions. [2020-07-21 10:35:30,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-21 10:35:30,712 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:30,713 INFO L422 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] [2020-07-21 10:35:30,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:30,927 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:30,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:30,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1880670433, now seen corresponding path program 1 times [2020-07-21 10:35:30,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:30,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722070692] [2020-07-21 10:35:30,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:31,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 10:35:31,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:31,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:35:31,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:31,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722070692] [2020-07-21 10:35:31,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:31,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 10:35:31,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909780282] [2020-07-21 10:35:31,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 10:35:31,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:31,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 10:35:31,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 10:35:31,196 INFO L87 Difference]: Start difference. First operand 2199 states and 2860 transitions. Second operand 8 states. [2020-07-21 10:35:31,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:31,737 INFO L93 Difference]: Finished difference Result 4210 states and 5536 transitions. [2020-07-21 10:35:31,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 10:35:31,738 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2020-07-21 10:35:31,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:31,752 INFO L225 Difference]: With dead ends: 4210 [2020-07-21 10:35:31,752 INFO L226 Difference]: Without dead ends: 2035 [2020-07-21 10:35:31,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 10:35:31,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2020-07-21 10:35:31,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 2035. [2020-07-21 10:35:31,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2035 states. [2020-07-21 10:35:31,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 2586 transitions. [2020-07-21 10:35:31,863 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 2586 transitions. Word has length 93 [2020-07-21 10:35:31,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:31,864 INFO L479 AbstractCegarLoop]: Abstraction has 2035 states and 2586 transitions. [2020-07-21 10:35:31,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 10:35:31,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 2586 transitions. [2020-07-21 10:35:31,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-21 10:35:31,869 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:31,869 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-07-21 10:35:32,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:32,085 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:32,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:32,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1522818168, now seen corresponding path program 1 times [2020-07-21 10:35:32,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:32,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106468099] [2020-07-21 10:35:32,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:32,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 10:35:32,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:32,304 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-21 10:35:32,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:32,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106468099] [2020-07-21 10:35:32,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:32,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:35:32,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295691346] [2020-07-21 10:35:32,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:35:32,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:32,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:35:32,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:35:32,307 INFO L87 Difference]: Start difference. First operand 2035 states and 2586 transitions. Second operand 3 states. [2020-07-21 10:35:32,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:32,412 INFO L93 Difference]: Finished difference Result 2516 states and 3182 transitions. [2020-07-21 10:35:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:35:32,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-07-21 10:35:32,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:32,419 INFO L225 Difference]: With dead ends: 2516 [2020-07-21 10:35:32,420 INFO L226 Difference]: Without dead ends: 923 [2020-07-21 10:35:32,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:35:32,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-07-21 10:35:32,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 923. [2020-07-21 10:35:32,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-07-21 10:35:32,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1144 transitions. [2020-07-21 10:35:32,473 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1144 transitions. Word has length 126 [2020-07-21 10:35:32,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:32,474 INFO L479 AbstractCegarLoop]: Abstraction has 923 states and 1144 transitions. [2020-07-21 10:35:32,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:35:32,474 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1144 transitions. [2020-07-21 10:35:32,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-21 10:35:32,477 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:32,477 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-07-21 10:35:32,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:32,691 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:32,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:32,691 INFO L82 PathProgramCache]: Analyzing trace with hash 458891640, now seen corresponding path program 1 times [2020-07-21 10:35:32,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:32,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357467062] [2020-07-21 10:35:32,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:32,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 10:35:32,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:32,957 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 10:35:32,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:32,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357467062] [2020-07-21 10:35:32,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:32,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:35:32,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474309533] [2020-07-21 10:35:32,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:35:32,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:32,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:35:32,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:35:32,960 INFO L87 Difference]: Start difference. First operand 923 states and 1144 transitions. Second operand 6 states. [2020-07-21 10:35:33,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:33,018 INFO L93 Difference]: Finished difference Result 1864 states and 2439 transitions. [2020-07-21 10:35:33,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 10:35:33,019 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2020-07-21 10:35:33,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:33,025 INFO L225 Difference]: With dead ends: 1864 [2020-07-21 10:35:33,025 INFO L226 Difference]: Without dead ends: 965 [2020-07-21 10:35:33,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 10:35:33,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2020-07-21 10:35:33,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 953. [2020-07-21 10:35:33,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2020-07-21 10:35:33,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1182 transitions. [2020-07-21 10:35:33,077 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1182 transitions. Word has length 128 [2020-07-21 10:35:33,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:33,077 INFO L479 AbstractCegarLoop]: Abstraction has 953 states and 1182 transitions. [2020-07-21 10:35:33,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:35:33,077 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1182 transitions. [2020-07-21 10:35:33,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-21 10:35:33,081 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:33,081 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-07-21 10:35:33,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:33,297 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:33,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:33,297 INFO L82 PathProgramCache]: Analyzing trace with hash 2025649590, now seen corresponding path program 1 times [2020-07-21 10:35:33,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:33,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804391070] [2020-07-21 10:35:33,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:33,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 10:35:33,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:33,502 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 10:35:33,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:33,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804391070] [2020-07-21 10:35:33,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:33,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 10:35:33,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818655527] [2020-07-21 10:35:33,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 10:35:33,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:33,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 10:35:33,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 10:35:33,505 INFO L87 Difference]: Start difference. First operand 953 states and 1182 transitions. Second operand 5 states. [2020-07-21 10:35:33,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:33,566 INFO L93 Difference]: Finished difference Result 1759 states and 2238 transitions. [2020-07-21 10:35:33,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 10:35:33,567 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-07-21 10:35:33,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:33,574 INFO L225 Difference]: With dead ends: 1759 [2020-07-21 10:35:33,574 INFO L226 Difference]: Without dead ends: 830 [2020-07-21 10:35:33,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 10:35:33,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2020-07-21 10:35:33,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2020-07-21 10:35:33,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2020-07-21 10:35:33,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1014 transitions. [2020-07-21 10:35:33,631 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1014 transitions. Word has length 128 [2020-07-21 10:35:33,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:33,631 INFO L479 AbstractCegarLoop]: Abstraction has 830 states and 1014 transitions. [2020-07-21 10:35:33,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 10:35:33,632 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1014 transitions. [2020-07-21 10:35:33,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-21 10:35:33,634 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:33,635 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:35:33,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:33,849 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:33,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:33,849 INFO L82 PathProgramCache]: Analyzing trace with hash -405492817, now seen corresponding path program 1 times [2020-07-21 10:35:33,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:33,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632093989] [2020-07-21 10:35:33,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:35:34,145 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:35:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:35:34,278 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:35:34,608 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 10:35:34,608 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 10:35:34,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:35,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:35:35 BoogieIcfgContainer [2020-07-21 10:35:35,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 10:35:35,030 INFO L168 Benchmark]: Toolchain (without parser) took 11635.60 ms. Allocated memory was 141.0 MB in the beginning and 351.8 MB in the end (delta: 210.8 MB). Free memory was 105.2 MB in the beginning and 199.4 MB in the end (delta: -94.2 MB). Peak memory consumption was 116.6 MB. Max. memory is 7.1 GB. [2020-07-21 10:35:35,031 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 10:35:35,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.76 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 104.8 MB in the beginning and 172.9 MB in the end (delta: -68.1 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2020-07-21 10:35:35,032 INFO L168 Benchmark]: Boogie Preprocessor took 116.93 ms. Allocated memory is still 204.5 MB. Free memory was 172.9 MB in the beginning and 169.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-07-21 10:35:35,033 INFO L168 Benchmark]: RCFGBuilder took 1158.65 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 169.0 MB in the beginning and 191.4 MB in the end (delta: -22.4 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. [2020-07-21 10:35:35,034 INFO L168 Benchmark]: TraceAbstraction took 9655.01 ms. Allocated memory was 233.8 MB in the beginning and 351.8 MB in the end (delta: 118.0 MB). Free memory was 191.4 MB in the beginning and 199.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 110.0 MB. Max. memory is 7.1 GB. [2020-07-21 10:35:35,037 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 697.76 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 104.8 MB in the beginning and 172.9 MB in the end (delta: -68.1 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.93 ms. Allocated memory is still 204.5 MB. Free memory was 172.9 MB in the beginning and 169.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1158.65 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 169.0 MB in the beginning and 191.4 MB in the end (delta: -22.4 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9655.01 ms. Allocated memory was 233.8 MB in the beginning and 351.8 MB in the end (delta: 118.0 MB). Free memory was 191.4 MB in the beginning and 199.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 110.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 405]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L147] int pumpRunning = 0; [L148] int systemActive = 1; [L436] int cleanupTimeShifts = 4; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=53, \old(head)=43, \old(head)=71, \old(methaneLevelCritical)=106, \old(pumpRunning)=66, \old(systemActive)=105, \old(waterLevel)=72, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L512] int retValue_acc ; [L513] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L517] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L518] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L519] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L519] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L519] tmp = valid_product() [L521] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L523] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L524] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L503] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L335] int splverifierCounter ; [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L339] int tmp___2 ; [L342] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L344] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L346] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L352] tmp = __VERIFIER_nondet_int() [L354] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L356] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L356] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L389] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L155] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L162] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L164] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L184] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L187] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L299] int retValue_acc ; [L300] int tmp ; [L301] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L305] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L127] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L305] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L305] tmp = isHighWaterSensorDry() [L307] COND FALSE !(\read(tmp)) [L310] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L312] retValue_acc = tmp___0 [L313] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L189] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] tmp = isHighWaterLevel() [L191] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L193] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L218] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L222] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L243] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L247] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L247] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L247] retValue_acc = isMethaneLevelCritical() [L249] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L222] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L222] tmp = isMethaneAlarm() [L224] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L228] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L212] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L228] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L193] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L164] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L170] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L411] int tmp ; [L412] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L416] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L416] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L416] tmp = isMethaneLevelCritical() [L418] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L170] RET __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L389] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L344] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L346] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L352] tmp = __VERIFIER_nondet_int() [L354] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=2] [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=-1, waterLevel=2] [L366] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L366] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=-1, waterLevel=2] [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=2] [L389] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L155] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L157] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L162] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L164] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L184] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L187] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L202] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L164] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L170] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L411] int tmp ; [L412] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L416] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L416] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L416] tmp = isMethaneLevelCritical() [L418] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L420] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L254] int retValue_acc ; [L257] retValue_acc = pumpRunning [L258] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L420] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L420] tmp___0 = isPumpRunning() [L422] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L424] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L405] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.3s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1741 SDtfs, 794 SDslu, 3149 SDs, 0 SdLazy, 941 SolverSat, 200 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 944 GetRequests, 904 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2199occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 175 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1079 NumberOfCodeBlocks, 1079 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 936 ConstructedInterpolants, 0 QuantifiedInterpolants, 139080 SizeOfPredicates, 27 NumberOfNonLiveVariables, 8144 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 97/97 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...