/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:51:43,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:51:43,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:51:43,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:51:43,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:51:43,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:51:43,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:51:43,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:51:43,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:51:43,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:51:43,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:51:43,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:51:43,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:51:43,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:51:43,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:51:43,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:51:43,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:51:43,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:51:43,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:51:43,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:51:43,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:51:43,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:51:43,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:51:43,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:51:43,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:51:43,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:51:43,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:51:43,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:51:43,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:51:43,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:51:43,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:51:43,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:51:43,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:51:43,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:51:43,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:51:43,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:51:43,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:51:43,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:51:43,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:51:43,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:51:43,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:51:43,191 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 12:51:43,207 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:51:43,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:51:43,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:51:43,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:51:43,209 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:51:43,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:51:43,209 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:51:43,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:51:43,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:51:43,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:51:43,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:51:43,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:51:43,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:51:43,211 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:51:43,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:51:43,211 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:51:43,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:51:43,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:51:43,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:51:43,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:51:43,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:51:43,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:51:43,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:51:43,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:51:43,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:51:43,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:51:43,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:43,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:51:43,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:51:43,214 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 12:51:43,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:51:43,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:51:43,527 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:51:43,529 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:51:43,529 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:51:43,530 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2020-07-21 12:51:43,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ef64c8f9/4d0c94fdc5d448e3ae3a65a47b2240b4/FLAGe7a3b03f4 [2020-07-21 12:51:44,185 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:51:44,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2020-07-21 12:51:44,198 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ef64c8f9/4d0c94fdc5d448e3ae3a65a47b2240b4/FLAGe7a3b03f4 [2020-07-21 12:51:44,472 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ef64c8f9/4d0c94fdc5d448e3ae3a65a47b2240b4 [2020-07-21 12:51:44,483 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:51:44,486 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:51:44,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:51:44,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:51:44,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:51:44,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:51:44" (1/1) ... [2020-07-21 12:51:44,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f9047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:44, skipping insertion in model container [2020-07-21 12:51:44,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:51:44" (1/1) ... [2020-07-21 12:51:44,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:51:44,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:51:45,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:51:45,035 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:51:45,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:51:45,209 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:51:45,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:45 WrapperNode [2020-07-21 12:51:45,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:51:45,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:51:45,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:51:45,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:51:45,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:45" (1/1) ... [2020-07-21 12:51:45,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:45" (1/1) ... [2020-07-21 12:51:45,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:45" (1/1) ... [2020-07-21 12:51:45,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:45" (1/1) ... [2020-07-21 12:51:45,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:45" (1/1) ... [2020-07-21 12:51:45,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:45" (1/1) ... [2020-07-21 12:51:45,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:45" (1/1) ... [2020-07-21 12:51:45,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:51:45,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:51:45,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:51:45,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:51:45,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:45" (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 12:51:45,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:51:45,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:51:45,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:51:45,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:51:45,367 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:51:45,367 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:51:45,367 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:51:45,367 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:51:45,367 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:51:45,367 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:51:45,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:51:45,368 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:51:45,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:51:45,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 12:51:45,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 12:51:45,368 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:51:45,369 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:51:45,369 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 12:51:45,369 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:51:45,369 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-21 12:51:45,369 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:51:45,369 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:51:45,369 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:51:45,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:51:45,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:51:45,370 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:51:45,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 12:51:45,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 12:51:45,370 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 12:51:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:51:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:51:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:51:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:51:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:51:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:51:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-21 12:51:45,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-21 12:51:45,372 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:51:45,372 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:51:45,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:51:45,372 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:51:45,372 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:51:45,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:51:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:51:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:51:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:51:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:51:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:51:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:51:45,374 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:51:45,374 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:51:45,374 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:51:45,374 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:51:45,374 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:51:45,374 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:51:45,375 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:51:45,375 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 12:51:45,375 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 12:51:45,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:51:45,375 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 12:51:45,375 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:51:45,375 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:51:45,376 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:51:45,376 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:51:45,376 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:51:45,376 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:51:45,376 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:51:45,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-21 12:51:45,377 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:51:45,377 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 12:51:45,377 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 12:51:45,377 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:51:45,377 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 12:51:45,377 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-21 12:51:45,378 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:51:45,378 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:51:45,378 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:51:45,378 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:51:45,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:51:45,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:51:45,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:51:45,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:51:45,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:51:45,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:51:45,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:51:45,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:51:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:51:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:51:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:51:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:51:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:51:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:51:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-21 12:51:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:51:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:51:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:51:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:51:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:51:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:51:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:51:46,501 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:51:46,501 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:51:46,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:51:46 BoogieIcfgContainer [2020-07-21 12:51:46,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:51:46,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:51:46,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:51:46,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:51:46,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:51:44" (1/3) ... [2020-07-21 12:51:46,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7861c32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:51:46, skipping insertion in model container [2020-07-21 12:51:46,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:45" (2/3) ... [2020-07-21 12:51:46,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7861c32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:51:46, skipping insertion in model container [2020-07-21 12:51:46,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:51:46" (3/3) ... [2020-07-21 12:51:46,515 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product55.cil.c [2020-07-21 12:51:46,526 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:51:46,535 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:51:46,550 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:51:46,575 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:51:46,576 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:51:46,576 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:51:46,576 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:51:46,577 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:51:46,577 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:51:46,577 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:51:46,577 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:51:46,601 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2020-07-21 12:51:46,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 12:51:46,612 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:46,613 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 12:51:46,613 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:46,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:46,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1134611440, now seen corresponding path program 1 times [2020-07-21 12:51:46,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:46,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594467274] [2020-07-21 12:51:46,629 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:51:47,002 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:47,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:47,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:51:47,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:47,051 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 12:51:47,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:47,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [594467274] [2020-07-21 12:51:47,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:47,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:51:47,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852317653] [2020-07-21 12:51:47,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:51:47,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:47,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:51:47,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:51:47,078 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2020-07-21 12:51:47,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:47,127 INFO L93 Difference]: Finished difference Result 304 states and 381 transitions. [2020-07-21 12:51:47,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:51:47,128 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2020-07-21 12:51:47,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:47,143 INFO L225 Difference]: With dead ends: 304 [2020-07-21 12:51:47,143 INFO L226 Difference]: Without dead ends: 154 [2020-07-21 12:51:47,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 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 12:51:47,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-07-21 12:51:47,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-07-21 12:51:47,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-07-21 12:51:47,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 184 transitions. [2020-07-21 12:51:47,211 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 184 transitions. Word has length 51 [2020-07-21 12:51:47,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:47,212 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 184 transitions. [2020-07-21 12:51:47,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:51:47,212 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 184 transitions. [2020-07-21 12:51:47,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 12:51:47,216 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:47,216 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] [2020-07-21 12:51:47,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:47,430 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:47,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:47,431 INFO L82 PathProgramCache]: Analyzing trace with hash -179918531, now seen corresponding path program 1 times [2020-07-21 12:51:47,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:47,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094572862] [2020-07-21 12:51:47,433 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:51:47,771 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:47,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:47,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:51:47,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:47,813 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 12:51:47,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:47,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094572862] [2020-07-21 12:51:47,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:47,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:51:47,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152557959] [2020-07-21 12:51:47,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:51:47,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:47,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:51:47,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:47,817 INFO L87 Difference]: Start difference. First operand 154 states and 184 transitions. Second operand 3 states. [2020-07-21 12:51:47,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:47,841 INFO L93 Difference]: Finished difference Result 247 states and 295 transitions. [2020-07-21 12:51:47,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:51:47,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-21 12:51:47,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:47,844 INFO L225 Difference]: With dead ends: 247 [2020-07-21 12:51:47,844 INFO L226 Difference]: Without dead ends: 145 [2020-07-21 12:51:47,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 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 12:51:47,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-07-21 12:51:47,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-07-21 12:51:47,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-07-21 12:51:47,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 172 transitions. [2020-07-21 12:51:47,861 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 172 transitions. Word has length 52 [2020-07-21 12:51:47,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:47,862 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 172 transitions. [2020-07-21 12:51:47,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:51:47,862 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 172 transitions. [2020-07-21 12:51:47,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-21 12:51:47,865 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:47,865 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] [2020-07-21 12:51:48,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:48,080 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:48,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:48,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1227863388, now seen corresponding path program 1 times [2020-07-21 12:51:48,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:48,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926238373] [2020-07-21 12:51:48,083 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:51:48,388 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:48,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:48,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 12:51:48,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:48,422 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 12:51:48,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:48,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926238373] [2020-07-21 12:51:48,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:48,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:51:48,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488792669] [2020-07-21 12:51:48,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:51:48,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:48,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:51:48,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:48,425 INFO L87 Difference]: Start difference. First operand 145 states and 172 transitions. Second operand 3 states. [2020-07-21 12:51:48,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:48,460 INFO L93 Difference]: Finished difference Result 377 states and 460 transitions. [2020-07-21 12:51:48,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:51:48,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-07-21 12:51:48,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:48,465 INFO L225 Difference]: With dead ends: 377 [2020-07-21 12:51:48,465 INFO L226 Difference]: Without dead ends: 260 [2020-07-21 12:51:48,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 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 12:51:48,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-07-21 12:51:48,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 256. [2020-07-21 12:51:48,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-07-21 12:51:48,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 311 transitions. [2020-07-21 12:51:48,496 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 311 transitions. Word has length 56 [2020-07-21 12:51:48,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:48,497 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 311 transitions. [2020-07-21 12:51:48,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:51:48,497 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 311 transitions. [2020-07-21 12:51:48,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-07-21 12:51:48,500 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:48,500 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, 1, 1, 1, 1, 1] [2020-07-21 12:51:48,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:48,716 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:48,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:48,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1601957820, now seen corresponding path program 1 times [2020-07-21 12:51:48,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:48,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598579318] [2020-07-21 12:51:48,718 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:51:49,035 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:49,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:49,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 12:51:49,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:49,092 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 12:51:49,092 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:49,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598579318] [2020-07-21 12:51:49,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:49,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:49,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45583719] [2020-07-21 12:51:49,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:49,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:49,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:49,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:49,095 INFO L87 Difference]: Start difference. First operand 256 states and 311 transitions. Second operand 6 states. [2020-07-21 12:51:49,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:49,350 INFO L93 Difference]: Finished difference Result 699 states and 869 transitions. [2020-07-21 12:51:49,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:51:49,351 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-07-21 12:51:49,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:49,355 INFO L225 Difference]: With dead ends: 699 [2020-07-21 12:51:49,355 INFO L226 Difference]: Without dead ends: 471 [2020-07-21 12:51:49,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 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 12:51:49,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-07-21 12:51:49,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 467. [2020-07-21 12:51:49,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-07-21 12:51:49,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 572 transitions. [2020-07-21 12:51:49,396 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 572 transitions. Word has length 62 [2020-07-21 12:51:49,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:49,396 INFO L479 AbstractCegarLoop]: Abstraction has 467 states and 572 transitions. [2020-07-21 12:51:49,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:49,397 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 572 transitions. [2020-07-21 12:51:49,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-07-21 12:51:49,401 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:49,401 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:49,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:49,616 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:49,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:49,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1204720808, now seen corresponding path program 1 times [2020-07-21 12:51:49,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:49,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958984822] [2020-07-21 12:51:49,618 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:51:49,933 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:49,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:49,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:51:49,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:49,977 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 12:51:49,978 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:49,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958984822] [2020-07-21 12:51:49,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:49,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:49,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787388162] [2020-07-21 12:51:49,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:49,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:49,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:49,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:49,980 INFO L87 Difference]: Start difference. First operand 467 states and 572 transitions. Second operand 6 states. [2020-07-21 12:51:50,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:50,281 INFO L93 Difference]: Finished difference Result 1122 states and 1440 transitions. [2020-07-21 12:51:50,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:51:50,282 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-07-21 12:51:50,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:50,287 INFO L225 Difference]: With dead ends: 1122 [2020-07-21 12:51:50,287 INFO L226 Difference]: Without dead ends: 683 [2020-07-21 12:51:50,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 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 12:51:50,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2020-07-21 12:51:50,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 671. [2020-07-21 12:51:50,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2020-07-21 12:51:50,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 826 transitions. [2020-07-21 12:51:50,356 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 826 transitions. Word has length 66 [2020-07-21 12:51:50,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:50,357 INFO L479 AbstractCegarLoop]: Abstraction has 671 states and 826 transitions. [2020-07-21 12:51:50,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:50,358 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 826 transitions. [2020-07-21 12:51:50,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-21 12:51:50,363 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:50,364 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:51:50,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:50,572 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:50,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:50,573 INFO L82 PathProgramCache]: Analyzing trace with hash -763723638, now seen corresponding path program 1 times [2020-07-21 12:51:50,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:50,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919985908] [2020-07-21 12:51:50,576 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:51:50,897 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:50,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:50,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:51:50,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:50,941 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 12:51:50,941 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:50,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919985908] [2020-07-21 12:51:50,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:50,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:50,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740010277] [2020-07-21 12:51:50,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:50,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:50,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:50,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:50,944 INFO L87 Difference]: Start difference. First operand 671 states and 826 transitions. Second operand 6 states. [2020-07-21 12:51:50,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:50,998 INFO L93 Difference]: Finished difference Result 1334 states and 1680 transitions. [2020-07-21 12:51:50,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:51:50,999 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-07-21 12:51:50,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:51,004 INFO L225 Difference]: With dead ends: 1334 [2020-07-21 12:51:51,004 INFO L226 Difference]: Without dead ends: 691 [2020-07-21 12:51:51,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 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 12:51:51,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-07-21 12:51:51,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2020-07-21 12:51:51,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-07-21 12:51:51,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 846 transitions. [2020-07-21 12:51:51,047 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 846 transitions. Word has length 93 [2020-07-21 12:51:51,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:51,048 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 846 transitions. [2020-07-21 12:51:51,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:51,048 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 846 transitions. [2020-07-21 12:51:51,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-21 12:51:51,050 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:51,050 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:51:51,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:51,266 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:51,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:51,266 INFO L82 PathProgramCache]: Analyzing trace with hash -836110196, now seen corresponding path program 1 times [2020-07-21 12:51:51,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:51,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572122751] [2020-07-21 12:51:51,268 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:51:51,582 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:51,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:51,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 12:51:51,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:51,622 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 12:51:51,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:51,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572122751] [2020-07-21 12:51:51,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:51,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 12:51:51,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304947454] [2020-07-21 12:51:51,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 12:51:51,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:51,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 12:51:51,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:51:51,625 INFO L87 Difference]: Start difference. First operand 691 states and 846 transitions. Second operand 5 states. [2020-07-21 12:51:51,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:51,664 INFO L93 Difference]: Finished difference Result 1382 states and 1764 transitions. [2020-07-21 12:51:51,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 12:51:51,665 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2020-07-21 12:51:51,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:51,669 INFO L225 Difference]: With dead ends: 1382 [2020-07-21 12:51:51,670 INFO L226 Difference]: Without dead ends: 719 [2020-07-21 12:51:51,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 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 12:51:51,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-07-21 12:51:51,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 707. [2020-07-21 12:51:51,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2020-07-21 12:51:51,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 862 transitions. [2020-07-21 12:51:51,706 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 862 transitions. Word has length 93 [2020-07-21 12:51:51,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:51,707 INFO L479 AbstractCegarLoop]: Abstraction has 707 states and 862 transitions. [2020-07-21 12:51:51,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 12:51:51,707 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 862 transitions. [2020-07-21 12:51:51,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-21 12:51:51,709 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:51,709 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:51:51,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:51,923 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:51,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:51,924 INFO L82 PathProgramCache]: Analyzing trace with hash -506344435, now seen corresponding path program 1 times [2020-07-21 12:51:51,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:51,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [559241667] [2020-07-21 12:51:51,925 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:51:52,190 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:52,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:52,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 12:51:52,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:52,226 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 12:51:52,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:52,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [559241667] [2020-07-21 12:51:52,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:52,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:51:52,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698308597] [2020-07-21 12:51:52,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:51:52,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:52,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:51:52,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:52,229 INFO L87 Difference]: Start difference. First operand 707 states and 862 transitions. Second operand 3 states. [2020-07-21 12:51:52,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:52,315 INFO L93 Difference]: Finished difference Result 1981 states and 2570 transitions. [2020-07-21 12:51:52,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:51:52,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2020-07-21 12:51:52,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:52,325 INFO L225 Difference]: With dead ends: 1981 [2020-07-21 12:51:52,325 INFO L226 Difference]: Without dead ends: 1302 [2020-07-21 12:51:52,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 90 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 12:51:52,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-07-21 12:51:52,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1299. [2020-07-21 12:51:52,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1299 states. [2020-07-21 12:51:52,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1630 transitions. [2020-07-21 12:51:52,402 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1630 transitions. Word has length 93 [2020-07-21 12:51:52,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:52,403 INFO L479 AbstractCegarLoop]: Abstraction has 1299 states and 1630 transitions. [2020-07-21 12:51:52,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:51:52,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1630 transitions. [2020-07-21 12:51:52,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-07-21 12:51:52,407 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:52,407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:51:52,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:52,612 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:52,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:52,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1600364013, now seen corresponding path program 1 times [2020-07-21 12:51:52,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:52,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [329148329] [2020-07-21 12:51:52,613 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:51:52,949 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:52,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:52,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 12:51:52,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:52,978 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 12:51:52,978 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:52,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [329148329] [2020-07-21 12:51:52,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:52,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:51:52,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905299757] [2020-07-21 12:51:52,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:51:52,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:52,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:51:52,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:52,981 INFO L87 Difference]: Start difference. First operand 1299 states and 1630 transitions. Second operand 3 states. [2020-07-21 12:51:53,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:53,103 INFO L93 Difference]: Finished difference Result 2334 states and 2967 transitions. [2020-07-21 12:51:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:51:53,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-07-21 12:51:53,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:53,124 INFO L225 Difference]: With dead ends: 2334 [2020-07-21 12:51:53,124 INFO L226 Difference]: Without dead ends: 2331 [2020-07-21 12:51:53,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 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 12:51:53,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2020-07-21 12:51:53,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 2235. [2020-07-21 12:51:53,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2235 states. [2020-07-21 12:51:53,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 2853 transitions. [2020-07-21 12:51:53,291 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 2853 transitions. Word has length 97 [2020-07-21 12:51:53,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:53,293 INFO L479 AbstractCegarLoop]: Abstraction has 2235 states and 2853 transitions. [2020-07-21 12:51:53,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:51:53,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 2853 transitions. [2020-07-21 12:51:53,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 12:51:53,306 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:53,307 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:53,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:53,520 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:53,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:53,521 INFO L82 PathProgramCache]: Analyzing trace with hash 407899471, now seen corresponding path program 1 times [2020-07-21 12:51:53,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:53,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806331335] [2020-07-21 12:51:53,522 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:51:53,802 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:53,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:53,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 12:51:53,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:53,840 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-21 12:51:53,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:53,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806331335] [2020-07-21 12:51:53,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:53,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:51:53,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259410682] [2020-07-21 12:51:53,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:51:53,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:53,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:51:53,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:53,843 INFO L87 Difference]: Start difference. First operand 2235 states and 2853 transitions. Second operand 3 states. [2020-07-21 12:51:54,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:54,018 INFO L93 Difference]: Finished difference Result 2430 states and 3103 transitions. [2020-07-21 12:51:54,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:51:54,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-21 12:51:54,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:54,030 INFO L225 Difference]: With dead ends: 2430 [2020-07-21 12:51:54,030 INFO L226 Difference]: Without dead ends: 1089 [2020-07-21 12:51:54,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 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 12:51:54,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2020-07-21 12:51:54,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 894. [2020-07-21 12:51:54,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-07-21 12:51:54,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1105 transitions. [2020-07-21 12:51:54,082 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1105 transitions. Word has length 137 [2020-07-21 12:51:54,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:54,082 INFO L479 AbstractCegarLoop]: Abstraction has 894 states and 1105 transitions. [2020-07-21 12:51:54,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:51:54,083 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1105 transitions. [2020-07-21 12:51:54,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-21 12:51:54,087 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:54,087 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:54,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:54,301 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:54,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:54,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1898255401, now seen corresponding path program 1 times [2020-07-21 12:51:54,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:54,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211458368] [2020-07-21 12:51:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:51:54,619 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:54,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:54,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 18 conjunts are in the unsatisfiable core [2020-07-21 12:51:54,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:54,691 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 52 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 12:51:54,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 12:51:55,012 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:51:55,050 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:51:55,241 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 28 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-21 12:51:55,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211458368] [2020-07-21 12:51:55,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 12:51:55,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 12 [2020-07-21 12:51:55,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127971701] [2020-07-21 12:51:55,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 12:51:55,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:55,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 12:51:55,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-07-21 12:51:55,245 INFO L87 Difference]: Start difference. First operand 894 states and 1105 transitions. Second operand 12 states. [2020-07-21 12:51:56,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:56,537 INFO L93 Difference]: Finished difference Result 2646 states and 3887 transitions. [2020-07-21 12:51:56,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 12:51:56,538 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 175 [2020-07-21 12:51:56,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:56,558 INFO L225 Difference]: With dead ends: 2646 [2020-07-21 12:51:56,558 INFO L226 Difference]: Without dead ends: 1780 [2020-07-21 12:51:56,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 327 SyntacticMatches, 15 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2020-07-21 12:51:56,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2020-07-21 12:51:56,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1196. [2020-07-21 12:51:56,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1196 states. [2020-07-21 12:51:56,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1515 transitions. [2020-07-21 12:51:56,680 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1515 transitions. Word has length 175 [2020-07-21 12:51:56,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:56,680 INFO L479 AbstractCegarLoop]: Abstraction has 1196 states and 1515 transitions. [2020-07-21 12:51:56,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 12:51:56,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1515 transitions. [2020-07-21 12:51:56,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-21 12:51:56,684 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:56,685 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 12:51:56,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:56,898 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:56,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:56,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1055495760, now seen corresponding path program 1 times [2020-07-21 12:51:56,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:56,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1382890241] [2020-07-21 12:51:56,899 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:51:57,275 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:57,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:57,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 12:51:57,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:57,308 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:51:57,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:57,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1382890241] [2020-07-21 12:51:57,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:57,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:51:57,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570219786] [2020-07-21 12:51:57,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:51:57,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:57,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:51:57,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:57,311 INFO L87 Difference]: Start difference. First operand 1196 states and 1515 transitions. Second operand 3 states. [2020-07-21 12:51:57,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:57,436 INFO L93 Difference]: Finished difference Result 2257 states and 2892 transitions. [2020-07-21 12:51:57,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:51:57,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-07-21 12:51:57,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:57,443 INFO L225 Difference]: With dead ends: 2257 [2020-07-21 12:51:57,444 INFO L226 Difference]: Without dead ends: 1089 [2020-07-21 12:51:57,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 158 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 12:51:57,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2020-07-21 12:51:57,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1054. [2020-07-21 12:51:57,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1054 states. [2020-07-21 12:51:57,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1257 transitions. [2020-07-21 12:51:57,515 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1257 transitions. Word has length 160 [2020-07-21 12:51:57,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:57,515 INFO L479 AbstractCegarLoop]: Abstraction has 1054 states and 1257 transitions. [2020-07-21 12:51:57,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:51:57,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1257 transitions. [2020-07-21 12:51:57,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-21 12:51:57,520 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:57,520 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:57,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:57,735 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:57,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:57,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1897710765, now seen corresponding path program 1 times [2020-07-21 12:51:57,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:57,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1968700783] [2020-07-21 12:51:57,736 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:58,070 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:58,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:58,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 12:51:58,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:58,154 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-21 12:51:58,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:58,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1968700783] [2020-07-21 12:51:58,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:58,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 12:51:58,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881900358] [2020-07-21 12:51:58,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 12:51:58,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:58,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 12:51:58,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:51:58,156 INFO L87 Difference]: Start difference. First operand 1054 states and 1257 transitions. Second operand 8 states. [2020-07-21 12:51:58,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:58,679 INFO L93 Difference]: Finished difference Result 1792 states and 2148 transitions. [2020-07-21 12:51:58,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 12:51:58,680 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 173 [2020-07-21 12:51:58,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:58,681 INFO L225 Difference]: With dead ends: 1792 [2020-07-21 12:51:58,681 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 12:51:58,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 165 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 12:51:58,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 12:51:58,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 12:51:58,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 12:51:58,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 12:51:58,687 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 173 [2020-07-21 12:51:58,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:58,687 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 12:51:58,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 12:51:58,687 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 12:51:58,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 12:51:58,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:58,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 12:52:01,137 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2020-07-21 12:52:01,350 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 36 [2020-07-21 12:52:01,587 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 34 [2020-07-21 12:52:01,877 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2020-07-21 12:52:02,061 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 33 [2020-07-21 12:52:02,271 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2020-07-21 12:52:02,460 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 32 [2020-07-21 12:52:02,651 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 32 [2020-07-21 12:52:02,896 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 36 [2020-07-21 12:52:03,429 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 59 [2020-07-21 12:52:03,668 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2020-07-21 12:52:04,029 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 35 [2020-07-21 12:52:04,186 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 32 [2020-07-21 12:52:04,335 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 23 [2020-07-21 12:52:04,621 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 33 [2020-07-21 12:52:04,938 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2020-07-21 12:52:05,090 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 32 [2020-07-21 12:52:05,299 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2020-07-21 12:52:05,559 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 32 [2020-07-21 12:52:05,771 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2020-07-21 12:52:06,568 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2020-07-21 12:52:06,772 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 34 [2020-07-21 12:52:07,093 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-07-21 12:52:07,378 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-07-21 12:52:07,835 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-07-21 12:52:07,982 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 22 [2020-07-21 12:52:08,105 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 32 [2020-07-21 12:52:08,344 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 35 [2020-07-21 12:52:08,574 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2020-07-21 12:52:08,713 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 23 [2020-07-21 12:52:09,004 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 51 [2020-07-21 12:52:09,008 INFO L268 CegarLoopResult]: For program point L579-2(lines 579 600) no Hoare annotation was computed. [2020-07-21 12:52:09,008 INFO L268 CegarLoopResult]: For program point L601(lines 578 602) no Hoare annotation was computed. [2020-07-21 12:52:09,008 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 554 609) no Hoare annotation was computed. [2020-07-21 12:52:09,008 INFO L268 CegarLoopResult]: For program point L585(lines 585 589) no Hoare annotation was computed. [2020-07-21 12:52:09,008 INFO L268 CegarLoopResult]: For program point L585-1(lines 585 589) no Hoare annotation was computed. [2020-07-21 12:52:09,008 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 554 609) no Hoare annotation was computed. [2020-07-21 12:52:09,009 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 12:52:09,009 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 554 609) no Hoare annotation was computed. [2020-07-21 12:52:09,009 INFO L268 CegarLoopResult]: For program point L642-1(lines 642 646) no Hoare annotation was computed. [2020-07-21 12:52:09,009 INFO L268 CegarLoopResult]: For program point L637(line 637) no Hoare annotation was computed. [2020-07-21 12:52:09,009 INFO L268 CegarLoopResult]: For program point L636-2(lines 636 661) no Hoare annotation was computed. [2020-07-21 12:52:09,009 INFO L268 CegarLoopResult]: For program point L662(lines 635 663) no Hoare annotation was computed. [2020-07-21 12:52:09,009 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 610 669) no Hoare annotation was computed. [2020-07-21 12:52:09,009 INFO L268 CegarLoopResult]: For program point L655(line 655) no Hoare annotation was computed. [2020-07-21 12:52:09,009 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 610 669) no Hoare annotation was computed. [2020-07-21 12:52:09,009 INFO L268 CegarLoopResult]: For program point L655-1(line 655) no Hoare annotation was computed. [2020-07-21 12:52:09,010 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 610 669) no Hoare annotation was computed. [2020-07-21 12:52:09,010 INFO L268 CegarLoopResult]: For program point L642(lines 642 646) no Hoare annotation was computed. [2020-07-21 12:52:09,010 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2020-07-21 12:52:09,010 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2020-07-21 12:52:09,010 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2020-07-21 12:52:09,010 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2020-07-21 12:52:09,010 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2020-07-21 12:52:09,011 INFO L264 CegarLoopResult]: At program point L993(line 993) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:52:09,011 INFO L264 CegarLoopResult]: At program point L993-1(line 993) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:52:09,011 INFO L268 CegarLoopResult]: For program point L991(lines 991 998) no Hoare annotation was computed. [2020-07-21 12:52:09,011 INFO L268 CegarLoopResult]: For program point L991-1(lines 991 998) no Hoare annotation was computed. [2020-07-21 12:52:09,011 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 981 1003) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:52:09,011 INFO L268 CegarLoopResult]: For program point L989(line 989) no Hoare annotation was computed. [2020-07-21 12:52:09,012 INFO L264 CegarLoopResult]: At program point L988(line 988) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:52:09,012 INFO L264 CegarLoopResult]: At program point L987(line 987) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:52:09,012 INFO L264 CegarLoopResult]: At program point L987-1(line 987) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:52:09,012 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 981 1003) no Hoare annotation was computed. [2020-07-21 12:52:09,012 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 981 1003) no Hoare annotation was computed. [2020-07-21 12:52:09,012 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 939 962) no Hoare annotation was computed. [2020-07-21 12:52:09,012 INFO L268 CegarLoopResult]: For program point L957(line 957) no Hoare annotation was computed. [2020-07-21 12:52:09,012 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 939 962) no Hoare annotation was computed. [2020-07-21 12:52:09,012 INFO L268 CegarLoopResult]: For program point L956(line 956) no Hoare annotation was computed. [2020-07-21 12:52:09,013 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 939 962) no Hoare annotation was computed. [2020-07-21 12:52:09,013 INFO L268 CegarLoopResult]: For program point L955(line 955) no Hoare annotation was computed. [2020-07-21 12:52:09,013 INFO L268 CegarLoopResult]: For program point L954(line 954) no Hoare annotation was computed. [2020-07-21 12:52:09,013 INFO L268 CegarLoopResult]: For program point L953(line 953) no Hoare annotation was computed. [2020-07-21 12:52:09,013 INFO L268 CegarLoopResult]: For program point L952(line 952) no Hoare annotation was computed. [2020-07-21 12:52:09,013 INFO L268 CegarLoopResult]: For program point L951(line 951) no Hoare annotation was computed. [2020-07-21 12:52:09,013 INFO L268 CegarLoopResult]: For program point L950(line 950) no Hoare annotation was computed. [2020-07-21 12:52:09,013 INFO L268 CegarLoopResult]: For program point L949(line 949) no Hoare annotation was computed. [2020-07-21 12:52:09,013 INFO L268 CegarLoopResult]: For program point L948(line 948) no Hoare annotation was computed. [2020-07-21 12:52:09,014 INFO L268 CegarLoopResult]: For program point L947(line 947) no Hoare annotation was computed. [2020-07-21 12:52:09,014 INFO L268 CegarLoopResult]: For program point L946(line 946) no Hoare annotation was computed. [2020-07-21 12:52:09,014 INFO L268 CegarLoopResult]: For program point L945(line 945) no Hoare annotation was computed. [2020-07-21 12:52:09,014 INFO L268 CegarLoopResult]: For program point L944(line 944) no Hoare annotation was computed. [2020-07-21 12:52:09,014 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 486 500) no Hoare annotation was computed. [2020-07-21 12:52:09,014 INFO L264 CegarLoopResult]: At program point L492(line 492) the Hoare annotation is: (and (or (not (= 0 ~methAndRunningLastTime~0)) (not (= 0 |old(~pumpRunning~0)|))) (or (not (<= 1 |old(~systemActive~0)|)) (<= 1 ~systemActive~0))) [2020-07-21 12:52:09,014 INFO L268 CegarLoopResult]: For program point L490(lines 490 496) no Hoare annotation was computed. [2020-07-21 12:52:09,014 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 486 500) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (= 0 ~systemActive~0) .cse1 (not (= 0 |old(~systemActive~0)|))) (or .cse0 .cse1 (= 0 ~pumpRunning~0)) (or (not (<= 1 |old(~systemActive~0)|)) (<= 1 ~systemActive~0)))) [2020-07-21 12:52:09,014 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 486 500) no Hoare annotation was computed. [2020-07-21 12:52:09,014 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 403 411) no Hoare annotation was computed. [2020-07-21 12:52:09,014 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 403 411) the Hoare annotation is: true [2020-07-21 12:52:09,015 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 403 411) no Hoare annotation was computed. [2020-07-21 12:52:09,015 INFO L268 CegarLoopResult]: For program point L476(lines 476 480) no Hoare annotation was computed. [2020-07-21 12:52:09,015 INFO L271 CegarLoopResult]: At program point L474(line 474) the Hoare annotation is: true [2020-07-21 12:52:09,015 INFO L268 CegarLoopResult]: For program point L476-2(lines 476 480) no Hoare annotation was computed. [2020-07-21 12:52:09,015 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 467 485) the Hoare annotation is: true [2020-07-21 12:52:09,015 INFO L268 CegarLoopResult]: For program point L474-1(line 474) no Hoare annotation was computed. [2020-07-21 12:52:09,015 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 467 485) no Hoare annotation was computed. [2020-07-21 12:52:09,015 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 467 485) no Hoare annotation was computed. [2020-07-21 12:52:09,015 INFO L268 CegarLoopResult]: For program point L419-2(lines 419 427) no Hoare annotation was computed. [2020-07-21 12:52:09,015 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 12:52:09,015 INFO L268 CegarLoopResult]: For program point L442-1(line 442) no Hoare annotation was computed. [2020-07-21 12:52:09,015 INFO L268 CegarLoopResult]: For program point L431(lines 431 439) no Hoare annotation was computed. [2020-07-21 12:52:09,015 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 412 447) no Hoare annotation was computed. [2020-07-21 12:52:09,016 INFO L268 CegarLoopResult]: For program point L431-2(lines 431 439) no Hoare annotation was computed. [2020-07-21 12:52:09,016 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 412 447) no Hoare annotation was computed. [2020-07-21 12:52:09,016 INFO L268 CegarLoopResult]: For program point L419(lines 419 427) no Hoare annotation was computed. [2020-07-21 12:52:09,016 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 412 447) no Hoare annotation was computed. [2020-07-21 12:52:09,016 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2020-07-21 12:52:09,016 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2020-07-21 12:52:09,016 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 508 553) no Hoare annotation was computed. [2020-07-21 12:52:09,016 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 508 553) no Hoare annotation was computed. [2020-07-21 12:52:09,016 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 508 553) no Hoare annotation was computed. [2020-07-21 12:52:09,016 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 821 866) no Hoare annotation was computed. [2020-07-21 12:52:09,016 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 821 866) no Hoare annotation was computed. [2020-07-21 12:52:09,016 INFO L268 CegarLoopResult]: For program point L841(lines 841 848) no Hoare annotation was computed. [2020-07-21 12:52:09,017 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 821 866) no Hoare annotation was computed. [2020-07-21 12:52:09,017 INFO L268 CegarLoopResult]: For program point L835(lines 835 855) no Hoare annotation was computed. [2020-07-21 12:52:09,017 INFO L268 CegarLoopResult]: For program point L835-1(lines 835 855) no Hoare annotation was computed. [2020-07-21 12:52:09,017 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 970 980) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:52:09,017 INFO L264 CegarLoopResult]: At program point L975(line 975) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:52:09,017 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 970 980) no Hoare annotation was computed. [2020-07-21 12:52:09,017 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 970 980) no Hoare annotation was computed. [2020-07-21 12:52:09,018 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 392 402) the Hoare annotation is: true [2020-07-21 12:52:09,018 INFO L271 CegarLoopResult]: At program point L397(line 397) the Hoare annotation is: true [2020-07-21 12:52:09,018 INFO L268 CegarLoopResult]: For program point L397-1(line 397) no Hoare annotation was computed. [2020-07-21 12:52:09,018 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 392 402) no Hoare annotation was computed. [2020-07-21 12:52:09,018 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 392 402) no Hoare annotation was computed. [2020-07-21 12:52:09,018 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 384 391) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (<= ~waterLevel~0 1))) (.cse3 (<= 1 ~pumpRunning~0))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-21 12:52:09,018 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 384 391) no Hoare annotation was computed. [2020-07-21 12:52:09,018 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 384 391) no Hoare annotation was computed. [2020-07-21 12:52:09,019 INFO L268 CegarLoopResult]: For program point L169(lines 169 175) no Hoare annotation was computed. [2020-07-21 12:52:09,019 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 165 178) no Hoare annotation was computed. [2020-07-21 12:52:09,019 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 165 178) the Hoare annotation is: true [2020-07-21 12:52:09,019 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 165 178) no Hoare annotation was computed. [2020-07-21 12:52:09,019 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 351 375) no Hoare annotation was computed. [2020-07-21 12:52:09,019 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 351 375) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|))) (.cse7 (not (<= ~waterLevel~0 1))) (.cse8 (<= 1 ~pumpRunning~0)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (= 0 ~pumpRunning~0))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse7 .cse8) (or .cse0 .cse1 .cse5 .cse7 .cse8) (or .cse0 .cse2 .cse3 .cse6 .cse4))) [2020-07-21 12:52:09,019 INFO L264 CegarLoopResult]: At program point L370(line 370) the Hoare annotation is: (let ((.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (= 0 ~pumpRunning~0)) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (not (<= 1 |old(~pumpRunning~0)|))) (.cse7 (not (<= ~waterLevel~0 1)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse3 .cse5 .cse4) (or .cse0 .cse6 .cse5 .cse7) (or .cse0 .cse1 .cse6 .cse7))) [2020-07-21 12:52:09,019 INFO L268 CegarLoopResult]: For program point L370-1(lines 351 375) no Hoare annotation was computed. [2020-07-21 12:52:09,020 INFO L264 CegarLoopResult]: At program point L365(line 365) the Hoare annotation is: (let ((.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (<= ~waterLevel~0 1)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse6 (<= 1 ~pumpRunning~0)) (or .cse0 .cse2 .cse3 .cse5) (or .cse0 .cse1 .cse4 .cse6))) [2020-07-21 12:52:09,020 INFO L264 CegarLoopResult]: At program point L361(line 361) the Hoare annotation is: (let ((.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse7 (<= 1 ~pumpRunning~0)) (.cse6 (not (<= ~waterLevel~0 1)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse2 .cse3 .cse5) (or .cse0 .cse1 .cse4 (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~3) .cse7) .cse6))) [2020-07-21 12:52:09,020 INFO L268 CegarLoopResult]: For program point L359(lines 359 367) no Hoare annotation was computed. [2020-07-21 12:52:09,020 INFO L264 CegarLoopResult]: At program point L357(line 357) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (<= ~waterLevel~0 1))) (.cse7 (<= 1 ~pumpRunning~0)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse1 .cse4 .cse6 .cse7) (or .cse0 .cse2 .cse3 .cse5))) [2020-07-21 12:52:09,020 INFO L268 CegarLoopResult]: For program point L357-1(line 357) no Hoare annotation was computed. [2020-07-21 12:52:09,020 INFO L268 CegarLoopResult]: For program point L355(lines 355 372) no Hoare annotation was computed. [2020-07-21 12:52:09,020 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 291 297) no Hoare annotation was computed. [2020-07-21 12:52:09,021 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 291 297) the Hoare annotation is: true [2020-07-21 12:52:09,021 INFO L264 CegarLoopResult]: At program point testENTRY(lines 192 257) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:52:09,021 INFO L264 CegarLoopResult]: At program point L250(lines 201 251) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:52:09,021 INFO L268 CegarLoopResult]: For program point testFINAL(lines 192 257) no Hoare annotation was computed. [2020-07-21 12:52:09,021 INFO L264 CegarLoopResult]: At program point L240(line 240) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) .cse0) (not (<= 1 |old(~systemActive~0)|)) (and .cse0 (<= 1 ~systemActive~0)))) [2020-07-21 12:52:09,021 INFO L268 CegarLoopResult]: For program point L238(lines 238 244) no Hoare annotation was computed. [2020-07-21 12:52:09,021 INFO L264 CegarLoopResult]: At program point L238-1(lines 232 245) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse7 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse2 (<= ~waterLevel~0 2)) (.cse5 (<= 1 ~systemActive~0)) (.cse3 (= 0 ~pumpRunning~0)) (.cse4 (<= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~waterLevel~0)| 1)) (and .cse0 .cse1 .cse2 .cse4 .cse5 .cse6) (and .cse7 .cse2 .cse4 .cse5 .cse6) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (< 1 ~waterLevel~0) .cse1 .cse2 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse2 .cse3 .cse4 .cse5) (not (<= 1 |old(~systemActive~0)|)) (and (= 0 ~systemActive~0) .cse3 .cse4))) [2020-07-21 12:52:09,022 INFO L268 CegarLoopResult]: For program point L203(lines 202 249) no Hoare annotation was computed. [2020-07-21 12:52:09,022 INFO L268 CegarLoopResult]: For program point L232(lines 232 245) no Hoare annotation was computed. [2020-07-21 12:52:09,022 INFO L264 CegarLoopResult]: At program point L224(line 224) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 0 ~pumpRunning~0)) (.cse7 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse2 (<= ~waterLevel~0 2)) (.cse4 (<= test_~splverifierCounter~0 0)) (.cse5 (<= 1 ~systemActive~0)) (.cse6 (<= 1 ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~waterLevel~0)| 1)) (and .cse0 (= 0 ~systemActive~0) .cse3 .cse4) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (< 1 ~waterLevel~0) .cse1 .cse2 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse0 .cse2 .cse4 .cse5 .cse6) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:52:09,022 INFO L268 CegarLoopResult]: For program point L222(lines 222 228) no Hoare annotation was computed. [2020-07-21 12:52:09,022 INFO L268 CegarLoopResult]: For program point L222-1(lines 222 228) no Hoare annotation was computed. [2020-07-21 12:52:09,022 INFO L264 CegarLoopResult]: At program point L247(lines 202 249) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 0 ~pumpRunning~0)) (.cse7 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse2 (<= ~waterLevel~0 2)) (.cse4 (<= test_~splverifierCounter~0 0)) (.cse5 (<= 1 ~systemActive~0)) (.cse6 (<= 1 ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~waterLevel~0)| 1)) (and .cse0 (= 0 ~systemActive~0) .cse3 .cse4) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (< 1 ~waterLevel~0) .cse1 .cse2 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse0 .cse2 .cse4 .cse5 .cse6) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:52:09,023 INFO L264 CegarLoopResult]: At program point L214(line 214) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 0 ~pumpRunning~0)) (.cse7 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse2 (<= ~waterLevel~0 2)) (.cse4 (<= test_~splverifierCounter~0 0)) (.cse5 (<= 1 ~systemActive~0)) (.cse6 (<= 1 ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~waterLevel~0)| 1)) (and .cse0 (= 0 ~systemActive~0) .cse3 .cse4) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (< 1 ~waterLevel~0) .cse1 .cse2 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse0 .cse2 .cse4 .cse5 .cse6) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:52:09,023 INFO L268 CegarLoopResult]: For program point L212(lines 212 218) no Hoare annotation was computed. [2020-07-21 12:52:09,023 INFO L268 CegarLoopResult]: For program point L212-1(lines 212 218) no Hoare annotation was computed. [2020-07-21 12:52:09,023 INFO L268 CegarLoopResult]: For program point L204(lines 204 208) no Hoare annotation was computed. [2020-07-21 12:52:09,023 INFO L268 CegarLoopResult]: For program point testEXIT(lines 192 257) no Hoare annotation was computed. [2020-07-21 12:52:09,023 INFO L268 CegarLoopResult]: For program point L795(lines 795 802) no Hoare annotation was computed. [2020-07-21 12:52:09,023 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 775 820) no Hoare annotation was computed. [2020-07-21 12:52:09,023 INFO L268 CegarLoopResult]: For program point L789(lines 789 809) no Hoare annotation was computed. [2020-07-21 12:52:09,023 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 775 820) no Hoare annotation was computed. [2020-07-21 12:52:09,023 INFO L268 CegarLoopResult]: For program point L789-1(lines 789 809) no Hoare annotation was computed. [2020-07-21 12:52:09,024 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 775 820) no Hoare annotation was computed. [2020-07-21 12:52:09,024 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 179 187) no Hoare annotation was computed. [2020-07-21 12:52:09,024 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 179 187) the Hoare annotation is: true [2020-07-21 12:52:09,024 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 179 187) no Hoare annotation was computed. [2020-07-21 12:52:09,024 INFO L264 CegarLoopResult]: At program point L893(line 893) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (<= 1 ~pumpRunning~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (< 1 ~waterLevel~0)) .cse4) (or .cse0 .cse2 .cse5 .cse4) (or (not (= 0 ~systemActive~0)) .cse3) (or .cse0 .cse2 .cse5 .cse3))) [2020-07-21 12:52:09,024 INFO L268 CegarLoopResult]: For program point L891(lines 891 897) no Hoare annotation was computed. [2020-07-21 12:52:09,024 INFO L268 CegarLoopResult]: For program point L890(lines 890 900) no Hoare annotation was computed. [2020-07-21 12:52:09,024 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse4 (not (<= 1 ~pumpRunning~0))) (.cse2 (not (<= 1 ~systemActive~0))) (.cse3 (not (<= ~waterLevel~0 2))) (.cse0 (not (= 0 ~methaneLevelCritical~0))) (.cse1 (not (= 0 ~pumpRunning~0)))) (and (or (not (= 0 ~systemActive~0)) .cse0 .cse1) (or .cse2 .cse3 .cse0 .cse4) (or .cse2 (= 0 ~methAndRunningLastTime~0) (not (<= 1 ~methaneLevelCritical~0)) .cse3 (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (< 1 ~waterLevel~0)) .cse4) (or .cse2 .cse3 .cse0 .cse1))) [2020-07-21 12:52:09,025 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-21 12:52:09,025 INFO L268 CegarLoopResult]: For program point L886(lines 886 903) no Hoare annotation was computed. [2020-07-21 12:52:09,025 INFO L268 CegarLoopResult]: For program point L886-1(lines 878 906) no Hoare annotation was computed. [2020-07-21 12:52:09,025 INFO L264 CegarLoopResult]: At program point L884(line 884) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (<= 1 ~methaneLevelCritical~0)) (not (<= ~waterLevel~0 2)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (< 1 ~waterLevel~0)) (not (<= 1 ~pumpRunning~0))) [2020-07-21 12:52:09,025 INFO L268 CegarLoopResult]: For program point L884-1(line 884) no Hoare annotation was computed. [2020-07-21 12:52:09,025 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 878 906) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (<= 1 ~methaneLevelCritical~0)) (not (<= ~waterLevel~0 2)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (< 1 ~waterLevel~0)) (not (<= 1 ~pumpRunning~0))) [2020-07-21 12:52:09,025 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__2EXIT(lines 878 906) no Hoare annotation was computed. [2020-07-21 12:52:09,025 INFO L268 CegarLoopResult]: For program point L141(lines 141 149) no Hoare annotation was computed. [2020-07-21 12:52:09,025 INFO L268 CegarLoopResult]: For program point L141-2(lines 141 149) no Hoare annotation was computed. [2020-07-21 12:52:09,026 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 133 155) no Hoare annotation was computed. [2020-07-21 12:52:09,026 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 133 155) no Hoare annotation was computed. [2020-07-21 12:52:09,026 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 133 155) no Hoare annotation was computed. [2020-07-21 12:52:09,026 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 870 877) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 ~methaneLevelCritical~0)) (not (<= ~waterLevel~0 1)) (not (= 0 ~pumpRunning~0))) [2020-07-21 12:52:09,026 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1FINAL(lines 870 877) no Hoare annotation was computed. [2020-07-21 12:52:09,026 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1EXIT(lines 870 877) no Hoare annotation was computed. [2020-07-21 12:52:09,026 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 44 53) no Hoare annotation was computed. [2020-07-21 12:52:09,026 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 44 53) no Hoare annotation was computed. [2020-07-21 12:52:09,026 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 44 53) no Hoare annotation was computed. [2020-07-21 12:52:09,026 INFO L268 CegarLoopResult]: For program point L737(line 737) no Hoare annotation was computed. [2020-07-21 12:52:09,027 INFO L268 CegarLoopResult]: For program point L737-1(line 737) no Hoare annotation was computed. [2020-07-21 12:52:09,027 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 672 774) no Hoare annotation was computed. [2020-07-21 12:52:09,027 INFO L268 CegarLoopResult]: For program point L696(lines 696 700) no Hoare annotation was computed. [2020-07-21 12:52:09,027 INFO L268 CegarLoopResult]: For program point L760(lines 760 771) no Hoare annotation was computed. [2020-07-21 12:52:09,027 INFO L268 CegarLoopResult]: For program point L723(lines 723 727) no Hoare annotation was computed. [2020-07-21 12:52:09,028 INFO L268 CegarLoopResult]: For program point L721-2(lines 721 741) no Hoare annotation was computed. [2020-07-21 12:52:09,028 INFO L268 CegarLoopResult]: For program point L742(lines 720 743) no Hoare annotation was computed. [2020-07-21 12:52:09,028 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 672 774) no Hoare annotation was computed. [2020-07-21 12:52:09,028 INFO L268 CegarLoopResult]: For program point L701(lines 701 717) no Hoare annotation was computed. [2020-07-21 12:52:09,028 INFO L268 CegarLoopResult]: For program point L761(lines 761 768) no Hoare annotation was computed. [2020-07-21 12:52:09,028 INFO L268 CegarLoopResult]: For program point L722(lines 721 741) no Hoare annotation was computed. [2020-07-21 12:52:09,028 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 672 774) no Hoare annotation was computed. [2020-07-21 12:52:09,028 INFO L268 CegarLoopResult]: For program point L753(line 753) no Hoare annotation was computed. [2020-07-21 12:52:09,028 INFO L268 CegarLoopResult]: For program point L753-1(line 753) no Hoare annotation was computed. [2020-07-21 12:52:09,028 INFO L268 CegarLoopResult]: For program point L718(lines 718 759) no Hoare annotation was computed. [2020-07-21 12:52:09,028 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:52:09,028 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (<= ~waterLevel~0 |old(~waterLevel~0)|) [2020-07-21 12:52:09,028 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:52:09,029 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 376 383) no Hoare annotation was computed. [2020-07-21 12:52:09,029 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 376 383) no Hoare annotation was computed. [2020-07-21 12:52:09,029 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 376 383) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (< 1 ~waterLevel~0))) (.cse4 (= 0 ~pumpRunning~0))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3 .cse4))) [2020-07-21 12:52:09,029 INFO L268 CegarLoopResult]: For program point getWaterLevelENTRY(lines 156 164) no Hoare annotation was computed. [2020-07-21 12:52:09,029 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 156 164) no Hoare annotation was computed. [2020-07-21 12:52:09,029 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 156 164) no Hoare annotation was computed. [2020-07-21 12:52:09,029 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 448 466) no Hoare annotation was computed. [2020-07-21 12:52:09,029 INFO L268 CegarLoopResult]: For program point L457(lines 457 461) no Hoare annotation was computed. [2020-07-21 12:52:09,029 INFO L271 CegarLoopResult]: At program point L455(line 455) the Hoare annotation is: true [2020-07-21 12:52:09,029 INFO L268 CegarLoopResult]: For program point L457-2(lines 457 461) no Hoare annotation was computed. [2020-07-21 12:52:09,030 INFO L268 CegarLoopResult]: For program point L455-1(line 455) no Hoare annotation was computed. [2020-07-21 12:52:09,030 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 448 466) the Hoare annotation is: true [2020-07-21 12:52:09,030 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 448 466) no Hoare annotation was computed. [2020-07-21 12:52:09,030 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 112 123) the Hoare annotation is: (let ((.cse4 (not (= 0 ~pumpRunning~0))) (.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse6 (= 0 ~methaneLevelCritical~0)) (.cse7 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (<= 1 ~methaneLevelCritical~0)) (.cse8 (not (<= 1 ~pumpRunning~0))) (.cse5 (not (<= 1 |old(~methaneLevelCritical~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse6 (not (= 0 ~systemActive~0)) .cse7 .cse4) (or .cse0 .cse1 .cse6 .cse2 .cse7 .cse4) (or .cse0 .cse1 .cse6 .cse2 .cse7 .cse8) (or .cse1 .cse2 .cse3 (not (< 1 ~waterLevel~0)) .cse8 .cse5))) [2020-07-21 12:52:09,030 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 112 123) no Hoare annotation was computed. [2020-07-21 12:52:09,030 INFO L268 CegarLoopResult]: For program point L116-1(lines 112 123) no Hoare annotation was computed. [2020-07-21 12:52:09,030 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:52:09,030 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 12:52:09,030 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:52:09,030 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 124 132) the Hoare annotation is: true [2020-07-21 12:52:09,030 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 124 132) no Hoare annotation was computed. [2020-07-21 12:52:09,030 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 124 132) no Hoare annotation was computed. [2020-07-21 12:52:09,031 INFO L264 CegarLoopResult]: At program point L280(line 280) the Hoare annotation is: (let ((.cse10 (not (<= |old(~waterLevel~0)| 1))) (.cse3 (< 1 ~waterLevel~0)) (.cse4 (<= ~waterLevel~0 2)) (.cse5 (= 0 ~pumpRunning~0)) (.cse7 (not (= 0 |old(~pumpRunning~0)|))) (.cse12 (not (= 0 ~methaneLevelCritical~0))) (.cse9 (not (< 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (= 0 ~methAndRunningLastTime~0)) (.cse11 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse14 (<= 1 ~pumpRunning~0)) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse13 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse8 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8 .cse9) (or .cse10 .cse0 .cse1 .cse6 .cse7 (and .cse2 .cse11 .cse5)) (or .cse10 .cse0 .cse6 .cse7 .cse12 (and .cse11 .cse5)) (or (not (= 0 ~systemActive~0)) .cse7) (or .cse0 .cse13 .cse12 (and .cse11 (<= ~waterLevel~0 1) .cse14) .cse8) (or .cse0 .cse1 .cse13 .cse8 .cse9 (and (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) .cse14)) (or .cse0 (and .cse3 .cse4 .cse5) .cse6 .cse7 .cse12 .cse8 .cse9) (or .cse0 (and .cse2 .cse11 .cse14) .cse1 .cse13 .cse6 .cse8))) [2020-07-21 12:52:09,031 INFO L264 CegarLoopResult]: At program point L278(lines 278 284) the Hoare annotation is: (let ((.cse20 (= 0 ~methaneLevelCritical~0)) (.cse21 (<= 1 ~systemActive~0)) (.cse5 (<= ~waterLevel~0 1)) (.cse17 (<= ~waterLevel~0 2)) (.cse18 (= 0 ~pumpRunning~0)) (.cse16 (< 1 ~waterLevel~0)) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (<= 1 ~pumpRunning~0))) (let ((.cse11 (and (= 0 ~methAndRunningLastTime~0) .cse16 .cse4 .cse6)) (.cse15 (and .cse16 .cse4 .cse17 .cse18)) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse19 (not (< 1 |old(~waterLevel~0)|))) (.cse12 (and .cse4 .cse18 .cse5)) (.cse13 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse8 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not .cse21)) (.cse14 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse2 (and .cse20 .cse4 .cse18 .cse5 .cse21)) (.cse3 (not .cse20)) (.cse9 (not (= 0 ~systemActive~0))) (.cse10 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6) .cse7) (or .cse8 .cse9 .cse10 .cse5) (or .cse11 .cse0 .cse12 .cse13 .cse14 .cse10 .cse7 .cse15) (or (and .cse16 .cse17 .cse6) .cse0 (and .cse16 .cse17 .cse18) .cse14 .cse10 .cse3 .cse7 .cse19) (or .cse11 .cse0 .cse13 .cse14 .cse10 .cse7 .cse19 .cse15) (or .cse0 .cse13 .cse1 (and .cse18 (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|)) .cse7 .cse19) (or .cse8 .cse0 .cse12 .cse13 .cse1 .cse14) (or .cse8 .cse0 .cse14 .cse10 .cse2 .cse3) (or .cse9 .cse10 .cse18)))) [2020-07-21 12:52:09,031 INFO L264 CegarLoopResult]: At program point L273(line 273) the Hoare annotation is: (let ((.cse3 (<= 1 ~pumpRunning~0))) (let ((.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= 0 ~methaneLevelCritical~0))) (.cse9 (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2) .cse3)) (.cse10 (not (< 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse8 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse7 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and .cse2 .cse3) .cse4) (or (not (= 0 ~systemActive~0)) .cse5) (or .cse0 .cse6 .cse5 .cse4 .cse7) (or .cse0 .cse8 .cse6 .cse5 .cse7) (or .cse9 .cse0 .cse1 .cse4 .cse7 .cse10) (or .cse0 .cse9 .cse8 .cse1 .cse7 .cse10) (or .cse0 (and (= 0 ~methAndRunningLastTime~0) .cse2 .cse3) .cse8 .cse1 .cse6 .cse7)))) [2020-07-21 12:52:09,031 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 267 290) the Hoare annotation is: (let ((.cse16 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse13 (<= 1 ~pumpRunning~0))) (let ((.cse4 (< 1 ~waterLevel~0)) (.cse11 (<= ~waterLevel~0 2)) (.cse8 (not (< 1 |old(~waterLevel~0)|))) (.cse15 (and .cse16 .cse13)) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (not (<= 1 ~systemActive~0))) (.cse10 (= 0 ~methAndRunningLastTime~0)) (.cse14 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|))) (.cse9 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse12 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 (<= ~waterLevel~0 1)) (or .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse3 .cse9 .cse2 .cse6 .cse7 (and .cse10 .cse11 .cse12)) (or .cse3 (and .cse4 .cse11 .cse13) .cse14 .cse5 .cse7 .cse8) (or .cse3 .cse4 .cse9 .cse2 .cse6 .cse7 .cse8) (or .cse10 .cse1 .cse9 .cse2) (or .cse3 .cse14 (and .cse10 .cse4 .cse11 .cse12) .cse9 .cse2 .cse7 .cse8) (or .cse0 .cse3 .cse14 .cse5 .cse15 .cse9) (or .cse0 .cse3 .cse14 .cse9 .cse2 (and .cse10 .cse16 .cse12)) (or .cse3 .cse5 .cse15 .cse6 .cse7) (or .cse0 .cse3 .cse16 .cse9 .cse2 .cse6) (or .cse3 .cse10 .cse14 .cse5 .cse9 .cse7) (or .cse1 .cse2 .cse12)))) [2020-07-21 12:52:09,031 INFO L268 CegarLoopResult]: For program point L271(lines 270 289) no Hoare annotation was computed. [2020-07-21 12:52:09,031 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 267 290) no Hoare annotation was computed. [2020-07-21 12:52:09,031 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 267 290) no Hoare annotation was computed. [2020-07-21 12:52:09,031 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 909 938) no Hoare annotation was computed. [2020-07-21 12:52:09,032 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 909 938) the Hoare annotation is: true [2020-07-21 12:52:09,032 INFO L268 CegarLoopResult]: For program point L923(lines 923 927) no Hoare annotation was computed. [2020-07-21 12:52:09,032 INFO L271 CegarLoopResult]: At program point L923-1(lines 923 927) the Hoare annotation is: true [2020-07-21 12:52:09,032 INFO L268 CegarLoopResult]: For program point L920(line 920) no Hoare annotation was computed. [2020-07-21 12:52:09,032 INFO L271 CegarLoopResult]: At program point L919-2(lines 919 933) the Hoare annotation is: true [2020-07-21 12:52:09,032 INFO L271 CegarLoopResult]: At program point L915(line 915) the Hoare annotation is: true [2020-07-21 12:52:09,032 INFO L268 CegarLoopResult]: For program point L915-1(line 915) no Hoare annotation was computed. [2020-07-21 12:52:09,032 INFO L271 CegarLoopResult]: At program point L934(lines 909 938) the Hoare annotation is: true [2020-07-21 12:52:09,032 INFO L268 CegarLoopResult]: For program point L930(line 930) no Hoare annotation was computed. [2020-07-21 12:52:09,033 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 88 99) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse8 (< 1 ~waterLevel~0)) (.cse6 (<= ~waterLevel~0 2)) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse9 (not (< 1 |old(~waterLevel~0)|))) (.cse4 (not (<= 1 ~pumpRunning~0)))) (and (or .cse0 (not (= 0 ~methAndRunningLastTime~0)) .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse5 .cse4) (or .cse1 .cse6 .cse5 .cse7 .cse4) (or .cse1 .cse8 .cse5 .cse7 .cse9 .cse4) (or .cse1 .cse2 (and .cse8 .cse6) .cse7 .cse9 .cse4))) [2020-07-21 12:52:09,033 INFO L268 CegarLoopResult]: For program point L92-1(lines 88 99) no Hoare annotation was computed. [2020-07-21 12:52:09,033 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 88 99) no Hoare annotation was computed. [2020-07-21 12:52:09,033 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 963 969) no Hoare annotation was computed. [2020-07-21 12:52:09,033 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 963 969) the Hoare annotation is: true [2020-07-21 12:52:09,033 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:52:09,033 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-21 12:52:09,033 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 12:52:09,033 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:52:09,033 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 299 323) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (= 0 ~pumpRunning~0))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse4 (not (<= ~waterLevel~0 1)) (<= 1 ~pumpRunning~0)) (or .cse0 .cse1 .cse2 .cse4 .cse3))) [2020-07-21 12:52:09,033 INFO L264 CegarLoopResult]: At program point L318(line 318) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse3 (not (<= ~waterLevel~0 1)) (<= 1 ~pumpRunning~0)) (or .cse0 .cse1 .cse2 .cse3))) [2020-07-21 12:52:09,033 INFO L268 CegarLoopResult]: For program point L318-1(lines 299 323) no Hoare annotation was computed. [2020-07-21 12:52:09,033 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 299 323) no Hoare annotation was computed. [2020-07-21 12:52:09,034 INFO L264 CegarLoopResult]: At program point L313(line 313) the Hoare annotation is: (let ((.cse1 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= 0 ~pumpRunning~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse4 (not (<= ~waterLevel~0 1))))) [2020-07-21 12:52:09,034 INFO L264 CegarLoopResult]: At program point L309(line 309) the Hoare annotation is: (let ((.cse1 (and (< 1 ~waterLevel~0) (= 0 ~pumpRunning~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse4 (not (<= ~waterLevel~0 1))))) [2020-07-21 12:52:09,034 INFO L268 CegarLoopResult]: For program point L307(lines 307 315) no Hoare annotation was computed. [2020-07-21 12:52:09,034 INFO L264 CegarLoopResult]: At program point L305(line 305) the Hoare annotation is: (let ((.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4 .cse3) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse4 (not (<= ~waterLevel~0 1))))) [2020-07-21 12:52:09,034 INFO L268 CegarLoopResult]: For program point L305-1(line 305) no Hoare annotation was computed. [2020-07-21 12:52:09,034 INFO L268 CegarLoopResult]: For program point L303(lines 303 320) no Hoare annotation was computed. [2020-07-21 12:52:09,034 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 100 111) no Hoare annotation was computed. [2020-07-21 12:52:09,034 INFO L268 CegarLoopResult]: For program point L104-1(lines 100 111) no Hoare annotation was computed. [2020-07-21 12:52:09,034 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 100 111) the Hoare annotation is: (let ((.cse3 (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse9 (not (<= 1 ~pumpRunning~0))) (.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse7 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse10 (not (<= 1 ~methaneLevelCritical~0))) (.cse8 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or .cse7 .cse0 .cse1 .cse8 .cse2 .cse9) (or .cse7 .cse0 (not (= 0 ~systemActive~0)) (<= ~waterLevel~0 1) .cse6) (or .cse0 .cse1 .cse10 .cse3 .cse4 .cse5 .cse6) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse9) (or .cse1 .cse10 .cse3 .cse4 .cse5 .cse9) (or .cse7 .cse0 .cse1 .cse8 .cse2 .cse6) (or .cse7 .cse0 .cse1 .cse10 .cse8 .cse6))) [2020-07-21 12:52:09,034 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 1005 1012) no Hoare annotation was computed. [2020-07-21 12:52:09,034 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1009) no Hoare annotation was computed. [2020-07-21 12:52:09,035 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 1005 1012) the Hoare annotation is: true [2020-07-21 12:52:09,035 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 1005 1012) no Hoare annotation was computed. [2020-07-21 12:52:09,035 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 325 349) no Hoare annotation was computed. [2020-07-21 12:52:09,035 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 325 349) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (= 0 ~pumpRunning~0))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse4 (not (<= ~waterLevel~0 1)) (<= 1 ~pumpRunning~0)) (or .cse0 .cse1 .cse2 .cse4 .cse3))) [2020-07-21 12:52:09,035 INFO L264 CegarLoopResult]: At program point L344(line 344) the Hoare annotation is: (let ((.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4 .cse3) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse4 (not (<= ~waterLevel~0 1))))) [2020-07-21 12:52:09,035 INFO L268 CegarLoopResult]: For program point L344-1(lines 325 349) no Hoare annotation was computed. [2020-07-21 12:52:09,035 INFO L264 CegarLoopResult]: At program point L339(line 339) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse3 (not (<= ~waterLevel~0 1)) (<= 1 ~pumpRunning~0)) (or .cse0 .cse1 .cse2 .cse3))) [2020-07-21 12:52:09,035 INFO L264 CegarLoopResult]: At program point L335(line 335) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse3 (not (<= ~waterLevel~0 1)) (<= 1 ~pumpRunning~0)) (or .cse0 .cse1 .cse2 .cse3))) [2020-07-21 12:52:09,035 INFO L268 CegarLoopResult]: For program point L333(lines 333 341) no Hoare annotation was computed. [2020-07-21 12:52:09,035 INFO L264 CegarLoopResult]: At program point L331(line 331) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse3 (not (<= ~waterLevel~0 1)) (<= 1 ~pumpRunning~0)) (or .cse0 .cse1 .cse2 .cse3))) [2020-07-21 12:52:09,035 INFO L268 CegarLoopResult]: For program point L331-1(line 331) no Hoare annotation was computed. [2020-07-21 12:52:09,036 INFO L268 CegarLoopResult]: For program point L329(lines 329 346) no Hoare annotation was computed. [2020-07-21 12:52:09,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:52:09 BoogieIcfgContainer [2020-07-21 12:52:09,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:52:09,059 INFO L168 Benchmark]: Toolchain (without parser) took 24575.01 ms. Allocated memory was 136.3 MB in the beginning and 548.9 MB in the end (delta: 412.6 MB). Free memory was 99.8 MB in the beginning and 322.4 MB in the end (delta: -222.6 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:09,060 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 12:52:09,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.51 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 99.6 MB in the beginning and 165.4 MB in the end (delta: -65.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:09,061 INFO L168 Benchmark]: Boogie Preprocessor took 91.43 ms. Allocated memory is still 200.8 MB. Free memory was 165.4 MB in the beginning and 161.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:09,062 INFO L168 Benchmark]: RCFGBuilder took 1204.48 ms. Allocated memory was 200.8 MB in the beginning and 229.6 MB in the end (delta: 28.8 MB). Free memory was 161.0 MB in the beginning and 188.8 MB in the end (delta: -27.8 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:09,062 INFO L168 Benchmark]: TraceAbstraction took 22549.45 ms. Allocated memory was 229.6 MB in the beginning and 548.9 MB in the end (delta: 319.3 MB). Free memory was 187.4 MB in the beginning and 322.4 MB in the end (delta: -135.1 MB). Peak memory consumption was 386.9 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:09,065 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.51 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 99.6 MB in the beginning and 165.4 MB in the end (delta: -65.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.43 ms. Allocated memory is still 200.8 MB. Free memory was 165.4 MB in the beginning and 161.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1204.48 ms. Allocated memory was 200.8 MB in the beginning and 229.6 MB in the end (delta: 28.8 MB). Free memory was 161.0 MB in the beginning and 188.8 MB in the end (delta: -27.8 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22549.45 ms. Allocated memory was 229.6 MB in the beginning and 548.9 MB in the end (delta: 319.3 MB). Free memory was 187.4 MB in the beginning and 322.4 MB in the end (delta: -135.1 MB). Peak memory consumption was 386.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1009]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) <= 1) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(systemActive)) - InvariantResult [Line: 919]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: (((((((((((((0 == methAndRunningLastTime && 1 <= methaneLevelCritical) && waterLevel <= 2) && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive) || !(\old(waterLevel) <= 1)) || (((0 == methAndRunningLastTime && 0 == systemActive) && 0 == pumpRunning) && splverifierCounter <= 0)) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || (((((1 < waterLevel && 1 <= methaneLevelCritical) && waterLevel <= 2) && splverifierCounter <= 0) && 1 <= systemActive) && 1 <= pumpRunning)) || (((((0 == methaneLevelCritical && 0 == methAndRunningLastTime) && waterLevel <= 2) && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive)) || (((((0 == methaneLevelCritical && 0 == methAndRunningLastTime) && waterLevel <= 2) && splverifierCounter <= 0) && 1 <= systemActive) && 1 <= pumpRunning)) || !(1 <= \old(systemActive)) - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 256 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.3s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2599 SDtfs, 1770 SDslu, 4550 SDs, 0 SdLazy, 1000 SolverSat, 829 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1486 GetRequests, 1419 SyntacticMatches, 17 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2235occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 945 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 3784 PreInvPairs, 3927 NumberOfFragments, 3810 HoareAnnotationTreeSize, 3784 FomulaSimplifications, 6412 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 70 FomulaSimplificationsInter, 15315 FormulaSimplificationTreeSizeReductionInter, 8.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1308 NumberOfCodeBlocks, 1308 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1469 ConstructedInterpolants, 0 QuantifiedInterpolants, 335353 SizeOfPredicates, 32 NumberOfNonLiveVariables, 10369 ConjunctsInSsa, 120 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 247/258 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 correct! Received shutdown request...