/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 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:01:13,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:01:13,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:01:13,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:01:13,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:01:13,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:01:13,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:01:13,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:01:13,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:01:13,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:01:13,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:01:13,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:01:13,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:01:13,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:01:13,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:01:13,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:01:13,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:01:13,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:01:13,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:01:13,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:01:13,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:01:13,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:01:13,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:01:13,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:01:13,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 13:01:13,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 13:01:13,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 13:01:13,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 13:01:13,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 13:01:13,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 13:01:13,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 13:01:13,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 13:01:13,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 13:01:13,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 13:01:13,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 13:01:13,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 13:01:13,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 13:01:13,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 13:01:13,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:01:13,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:01:13,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:01:13,236 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 [2020-07-20 13:01:13,271 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:01:13,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:01:13,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:01:13,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:01:13,274 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:01:13,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:01:13,274 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:01:13,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:01:13,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:01:13,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:01:13,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:01:13,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:01:13,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:01:13,277 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:01:13,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:01:13,278 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:01:13,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:01:13,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:01:13,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:01:13,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:01:13,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:01:13,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:01:13,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:01:13,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:01:13,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:01:13,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:01:13,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:13,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:01:13,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:01:13,283 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 -> 4 [2020-07-20 13:01:13,577 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:01:13,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:01:13,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:01:13,602 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:01:13,602 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:01:13,604 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-07-20 13:01:13,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a43ab613/759a934c363847ff876c8623f538c134/FLAG45897e8db [2020-07-20 13:01:14,227 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:01:14,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-07-20 13:01:14,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a43ab613/759a934c363847ff876c8623f538c134/FLAG45897e8db [2020-07-20 13:01:14,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a43ab613/759a934c363847ff876c8623f538c134 [2020-07-20 13:01:14,524 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:01:14,527 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:01:14,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:01:14,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:01:14,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:01:14,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:01:14" (1/1) ... [2020-07-20 13:01:14,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33761369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:14, skipping insertion in model container [2020-07-20 13:01:14,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:01:14" (1/1) ... [2020-07-20 13:01:14,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:01:14,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:01:14,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:01:14,977 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:01:15,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:01:15,186 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:01:15,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:15 WrapperNode [2020-07-20 13:01:15,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:01:15,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:01:15,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:01:15,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:01:15,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:15" (1/1) ... [2020-07-20 13:01:15,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:15" (1/1) ... [2020-07-20 13:01:15,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:15" (1/1) ... [2020-07-20 13:01:15,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:15" (1/1) ... [2020-07-20 13:01:15,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:15" (1/1) ... [2020-07-20 13:01:15,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:15" (1/1) ... [2020-07-20 13:01:15,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:15" (1/1) ... [2020-07-20 13:01:15,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:01:15,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:01:15,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:01:15,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:01:15,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:15" (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 [2020-07-20 13:01:15,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:01:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:01:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 13:01:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 13:01:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 13:01:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 13:01:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 13:01:15,331 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 13:01:15,331 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-20 13:01:15,331 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 13:01:15,331 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 13:01:15,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 13:01:15,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 13:01:15,331 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 13:01:15,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 13:01:15,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-20 13:01:15,332 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 13:01:15,332 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 13:01:15,332 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 13:01:15,332 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 13:01:15,333 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 13:01:15,333 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 13:01:15,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 13:01:15,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 13:01:15,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 13:01:15,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 13:01:15,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 13:01:15,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 13:01:15,334 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 13:01:15,334 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 13:01:15,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 13:01:15,334 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 13:01:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:01:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 13:01:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 13:01:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 13:01:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 13:01:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 13:01:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 13:01:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 13:01:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-20 13:01:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-20 13:01:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 13:01:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:01:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 13:01:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 13:01:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 13:01:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 13:01:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 13:01:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 13:01:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-20 13:01:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 13:01:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 13:01:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 13:01:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 13:01:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 13:01:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 13:01:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-20 13:01:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 13:01:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 13:01:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 13:01:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 13:01:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-20 13:01:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 13:01:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 13:01:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-20 13:01:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 13:01:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 13:01:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 13:01:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 13:01:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 13:01:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 13:01:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 13:01:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 13:01:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 13:01:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 13:01:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 13:01:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 13:01:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 13:01:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 13:01:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 13:01:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 13:01:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 13:01:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 13:01:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 13:01:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 13:01:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 13:01:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 13:01:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 13:01:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 13:01:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 13:01:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 13:01:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 13:01:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 13:01:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:01:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 13:01:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 13:01:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:01:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 13:01:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:01:16,369 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:01:16,370 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 13:01:16,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:01:16 BoogieIcfgContainer [2020-07-20 13:01:16,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:01:16,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:01:16,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:01:16,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:01:16,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:01:14" (1/3) ... [2020-07-20 13:01:16,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3069a077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:01:16, skipping insertion in model container [2020-07-20 13:01:16,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:15" (2/3) ... [2020-07-20 13:01:16,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3069a077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:01:16, skipping insertion in model container [2020-07-20 13:01:16,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:01:16" (3/3) ... [2020-07-20 13:01:16,387 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2020-07-20 13:01:16,398 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:01:16,408 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 13:01:16,422 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 13:01:16,443 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:01:16,443 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:01:16,444 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:01:16,444 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:01:16,444 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:01:16,444 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:01:16,444 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:01:16,445 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:01:16,469 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2020-07-20 13:01:16,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 13:01:16,479 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:16,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:16,481 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:16,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:16,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1419538001, now seen corresponding path program 1 times [2020-07-20 13:01:16,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:16,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092861097] [2020-07-20 13:01:16,497 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:16,965 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:16,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:16,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 13:01:16,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:17,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:17,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:17,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092861097] [2020-07-20 13:01:17,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:17,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 13:01:17,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159444522] [2020-07-20 13:01:17,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 13:01:17,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:17,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 13:01:17,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:01:17,037 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2020-07-20 13:01:17,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:17,086 INFO L93 Difference]: Finished difference Result 308 states and 383 transitions. [2020-07-20 13:01:17,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 13:01:17,088 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-20 13:01:17,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:17,102 INFO L225 Difference]: With dead ends: 308 [2020-07-20 13:01:17,103 INFO L226 Difference]: Without dead ends: 154 [2020-07-20 13:01:17,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:01:17,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-07-20 13:01:17,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-07-20 13:01:17,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-07-20 13:01:17,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 183 transitions. [2020-07-20 13:01:17,179 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 183 transitions. Word has length 46 [2020-07-20 13:01:17,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:17,180 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 183 transitions. [2020-07-20 13:01:17,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 13:01:17,182 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 183 transitions. [2020-07-20 13:01:17,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 13:01:17,187 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:17,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:17,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:17,402 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:17,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:17,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1353902391, now seen corresponding path program 1 times [2020-07-20 13:01:17,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:17,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972906948] [2020-07-20 13:01:17,404 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:17,826 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:17,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:17,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:01:17,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:17,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:17,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:17,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972906948] [2020-07-20 13:01:17,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:17,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:01:17,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000826693] [2020-07-20 13:01:17,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:01:17,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:17,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:01:17,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:17,875 INFO L87 Difference]: Start difference. First operand 154 states and 183 transitions. Second operand 3 states. [2020-07-20 13:01:17,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:17,904 INFO L93 Difference]: Finished difference Result 253 states and 301 transitions. [2020-07-20 13:01:17,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:17,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-20 13:01:17,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:17,907 INFO L225 Difference]: With dead ends: 253 [2020-07-20 13:01:17,907 INFO L226 Difference]: Without dead ends: 145 [2020-07-20 13:01:17,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:17,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-07-20 13:01:17,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-07-20 13:01:17,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-07-20 13:01:17,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 171 transitions. [2020-07-20 13:01:17,927 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 171 transitions. Word has length 47 [2020-07-20 13:01:17,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:17,928 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 171 transitions. [2020-07-20 13:01:17,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:17,928 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 171 transitions. [2020-07-20 13:01:17,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 13:01:17,931 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:17,931 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] [2020-07-20 13:01:18,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:18,145 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:18,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:18,146 INFO L82 PathProgramCache]: Analyzing trace with hash -480372053, now seen corresponding path program 1 times [2020-07-20 13:01:18,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:18,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217553693] [2020-07-20 13:01:18,147 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:18,503 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:18,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:18,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 13:01:18,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:18,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:18,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:18,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217553693] [2020-07-20 13:01:18,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:18,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:01:18,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307767265] [2020-07-20 13:01:18,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:01:18,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:18,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:01:18,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:18,539 INFO L87 Difference]: Start difference. First operand 145 states and 171 transitions. Second operand 3 states. [2020-07-20 13:01:18,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:18,560 INFO L93 Difference]: Finished difference Result 266 states and 319 transitions. [2020-07-20 13:01:18,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:18,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 13:01:18,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:18,563 INFO L225 Difference]: With dead ends: 266 [2020-07-20 13:01:18,563 INFO L226 Difference]: Without dead ends: 145 [2020-07-20 13:01:18,565 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 [2020-07-20 13:01:18,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-07-20 13:01:18,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-07-20 13:01:18,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-07-20 13:01:18,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 170 transitions. [2020-07-20 13:01:18,581 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 170 transitions. Word has length 52 [2020-07-20 13:01:18,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:18,582 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 170 transitions. [2020-07-20 13:01:18,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:18,582 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 170 transitions. [2020-07-20 13:01:18,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-20 13:01:18,584 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:18,585 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] [2020-07-20 13:01:18,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:18,799 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:18,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:18,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1922469070, now seen corresponding path program 1 times [2020-07-20 13:01:18,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:18,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848298430] [2020-07-20 13:01:18,801 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:19,149 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:19,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:19,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 13:01:19,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:19,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:19,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:19,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848298430] [2020-07-20 13:01:19,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:19,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:19,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938147800] [2020-07-20 13:01:19,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:19,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:19,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:19,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:19,214 INFO L87 Difference]: Start difference. First operand 145 states and 170 transitions. Second operand 6 states. [2020-07-20 13:01:19,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:19,925 INFO L93 Difference]: Finished difference Result 362 states and 440 transitions. [2020-07-20 13:01:19,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:01:19,926 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-07-20 13:01:19,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:19,930 INFO L225 Difference]: With dead ends: 362 [2020-07-20 13:01:19,931 INFO L226 Difference]: Without dead ends: 241 [2020-07-20 13:01:19,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:01:19,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-07-20 13:01:19,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 225. [2020-07-20 13:01:19,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-07-20 13:01:19,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 253 transitions. [2020-07-20 13:01:19,979 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 253 transitions. Word has length 70 [2020-07-20 13:01:19,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:19,980 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 253 transitions. [2020-07-20 13:01:19,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:19,980 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 253 transitions. [2020-07-20 13:01:19,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-20 13:01:19,982 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:19,982 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] [2020-07-20 13:01:20,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:20,196 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:20,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:20,197 INFO L82 PathProgramCache]: Analyzing trace with hash 371744810, now seen corresponding path program 1 times [2020-07-20 13:01:20,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:20,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739681403] [2020-07-20 13:01:20,198 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:20,540 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:20,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:20,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 13:01:20,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:20,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:20,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:20,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1739681403] [2020-07-20 13:01:20,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:20,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:20,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603630571] [2020-07-20 13:01:20,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:20,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:20,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:20,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:20,607 INFO L87 Difference]: Start difference. First operand 225 states and 253 transitions. Second operand 6 states. [2020-07-20 13:01:20,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:20,863 INFO L93 Difference]: Finished difference Result 616 states and 713 transitions. [2020-07-20 13:01:20,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:01:20,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2020-07-20 13:01:20,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:20,872 INFO L225 Difference]: With dead ends: 616 [2020-07-20 13:01:20,872 INFO L226 Difference]: Without dead ends: 415 [2020-07-20 13:01:20,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:01:20,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-07-20 13:01:20,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 411. [2020-07-20 13:01:20,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-07-20 13:01:20,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 464 transitions. [2020-07-20 13:01:20,959 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 464 transitions. Word has length 84 [2020-07-20 13:01:20,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:20,959 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 464 transitions. [2020-07-20 13:01:20,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:20,960 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 464 transitions. [2020-07-20 13:01:20,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-20 13:01:20,962 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:20,963 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] [2020-07-20 13:01:21,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:21,178 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:21,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:21,179 INFO L82 PathProgramCache]: Analyzing trace with hash 861472934, now seen corresponding path program 1 times [2020-07-20 13:01:21,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:21,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774191121] [2020-07-20 13:01:21,180 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:21,574 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:21,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:21,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:01:21,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:21,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:21,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:21,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774191121] [2020-07-20 13:01:21,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:21,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:21,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867204248] [2020-07-20 13:01:21,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:21,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:21,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:21,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:21,628 INFO L87 Difference]: Start difference. First operand 411 states and 464 transitions. Second operand 6 states. [2020-07-20 13:01:21,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:21,860 INFO L93 Difference]: Finished difference Result 418 states and 472 transitions. [2020-07-20 13:01:21,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:01:21,861 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-07-20 13:01:21,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:21,864 INFO L225 Difference]: With dead ends: 418 [2020-07-20 13:01:21,865 INFO L226 Difference]: Without dead ends: 415 [2020-07-20 13:01:21,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:01:21,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-07-20 13:01:21,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 411. [2020-07-20 13:01:21,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-07-20 13:01:21,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 463 transitions. [2020-07-20 13:01:21,912 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 463 transitions. Word has length 88 [2020-07-20 13:01:21,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:21,913 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 463 transitions. [2020-07-20 13:01:21,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:21,913 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 463 transitions. [2020-07-20 13:01:21,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-07-20 13:01:21,915 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:21,916 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:22,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:22,130 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:22,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:22,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1149093276, now seen corresponding path program 1 times [2020-07-20 13:01:22,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:22,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537859229] [2020-07-20 13:01:22,133 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:22,424 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:22,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:22,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:01:22,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:22,458 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 13:01:22,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:22,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537859229] [2020-07-20 13:01:22,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:22,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:22,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813910454] [2020-07-20 13:01:22,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:22,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:22,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:22,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:22,461 INFO L87 Difference]: Start difference. First operand 411 states and 463 transitions. Second operand 6 states. [2020-07-20 13:01:22,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:22,522 INFO L93 Difference]: Finished difference Result 812 states and 934 transitions. [2020-07-20 13:01:22,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:01:22,523 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2020-07-20 13:01:22,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:22,526 INFO L225 Difference]: With dead ends: 812 [2020-07-20 13:01:22,526 INFO L226 Difference]: Without dead ends: 425 [2020-07-20 13:01:22,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:01:22,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-07-20 13:01:22,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 421. [2020-07-20 13:01:22,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-07-20 13:01:22,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 473 transitions. [2020-07-20 13:01:22,574 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 473 transitions. Word has length 104 [2020-07-20 13:01:22,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:22,574 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 473 transitions. [2020-07-20 13:01:22,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:22,575 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 473 transitions. [2020-07-20 13:01:22,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-07-20 13:01:22,576 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:22,577 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:22,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:22,790 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:22,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:22,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1502181658, now seen corresponding path program 1 times [2020-07-20 13:01:22,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:22,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [419275095] [2020-07-20 13:01:22,792 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:23,243 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:23,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:23,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 13:01:23,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:23,298 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 13:01:23,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:23,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [419275095] [2020-07-20 13:01:23,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:23,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 13:01:23,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195206547] [2020-07-20 13:01:23,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 13:01:23,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:23,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 13:01:23,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:01:23,301 INFO L87 Difference]: Start difference. First operand 421 states and 473 transitions. Second operand 5 states. [2020-07-20 13:01:23,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:23,334 INFO L93 Difference]: Finished difference Result 832 states and 956 transitions. [2020-07-20 13:01:23,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 13:01:23,335 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-07-20 13:01:23,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:23,340 INFO L225 Difference]: With dead ends: 832 [2020-07-20 13:01:23,340 INFO L226 Difference]: Without dead ends: 435 [2020-07-20 13:01:23,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:01:23,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-07-20 13:01:23,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 429. [2020-07-20 13:01:23,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-07-20 13:01:23,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 481 transitions. [2020-07-20 13:01:23,374 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 481 transitions. Word has length 104 [2020-07-20 13:01:23,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:23,375 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 481 transitions. [2020-07-20 13:01:23,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 13:01:23,375 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 481 transitions. [2020-07-20 13:01:23,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-07-20 13:01:23,380 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:23,381 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:23,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:23,594 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:23,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:23,594 INFO L82 PathProgramCache]: Analyzing trace with hash -368991065, now seen corresponding path program 1 times [2020-07-20 13:01:23,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:23,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5565885] [2020-07-20 13:01:23,595 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:23,919 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:23,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:23,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 13:01:23,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:23,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 13:01:23,960 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:23,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5565885] [2020-07-20 13:01:23,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:23,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:01:23,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143031905] [2020-07-20 13:01:23,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:01:23,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:23,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:01:23,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:23,963 INFO L87 Difference]: Start difference. First operand 429 states and 481 transitions. Second operand 3 states. [2020-07-20 13:01:24,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:24,018 INFO L93 Difference]: Finished difference Result 1151 states and 1345 transitions. [2020-07-20 13:01:24,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:24,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-07-20 13:01:24,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:24,047 INFO L225 Difference]: With dead ends: 1151 [2020-07-20 13:01:24,047 INFO L226 Difference]: Without dead ends: 746 [2020-07-20 13:01:24,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:24,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2020-07-20 13:01:24,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 743. [2020-07-20 13:01:24,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 743 states. [2020-07-20 13:01:24,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 854 transitions. [2020-07-20 13:01:24,090 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 854 transitions. Word has length 104 [2020-07-20 13:01:24,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:24,091 INFO L479 AbstractCegarLoop]: Abstraction has 743 states and 854 transitions. [2020-07-20 13:01:24,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:24,091 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 854 transitions. [2020-07-20 13:01:24,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-07-20 13:01:24,093 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:24,094 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:24,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:24,307 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:24,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:24,308 INFO L82 PathProgramCache]: Analyzing trace with hash 38573473, now seen corresponding path program 1 times [2020-07-20 13:01:24,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:24,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610454324] [2020-07-20 13:01:24,309 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:24,741 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:24,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:24,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 13:01:24,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:24,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:24,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:24,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610454324] [2020-07-20 13:01:24,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:24,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 13:01:24,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90851122] [2020-07-20 13:01:24,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 13:01:24,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:24,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 13:01:24,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:01:24,825 INFO L87 Difference]: Start difference. First operand 743 states and 854 transitions. Second operand 8 states. [2020-07-20 13:01:25,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:25,217 INFO L93 Difference]: Finished difference Result 1447 states and 1673 transitions. [2020-07-20 13:01:25,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 13:01:25,218 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2020-07-20 13:01:25,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:25,225 INFO L225 Difference]: With dead ends: 1447 [2020-07-20 13:01:25,225 INFO L226 Difference]: Without dead ends: 728 [2020-07-20 13:01:25,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:01:25,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-07-20 13:01:25,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 728. [2020-07-20 13:01:25,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2020-07-20 13:01:25,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 829 transitions. [2020-07-20 13:01:25,293 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 829 transitions. Word has length 108 [2020-07-20 13:01:25,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:25,294 INFO L479 AbstractCegarLoop]: Abstraction has 728 states and 829 transitions. [2020-07-20 13:01:25,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 13:01:25,295 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 829 transitions. [2020-07-20 13:01:25,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-20 13:01:25,301 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:25,301 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1] [2020-07-20 13:01:25,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:25,517 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:25,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:25,517 INFO L82 PathProgramCache]: Analyzing trace with hash 797532396, now seen corresponding path program 1 times [2020-07-20 13:01:25,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:25,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780539711] [2020-07-20 13:01:25,518 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:25,887 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:25,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:25,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 13:01:25,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:25,942 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-20 13:01:25,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:25,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780539711] [2020-07-20 13:01:25,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:25,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 13:01:25,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561899178] [2020-07-20 13:01:25,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 13:01:25,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:25,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 13:01:25,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:01:25,944 INFO L87 Difference]: Start difference. First operand 728 states and 829 transitions. Second operand 5 states. [2020-07-20 13:01:26,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:26,732 INFO L93 Difference]: Finished difference Result 1836 states and 2189 transitions. [2020-07-20 13:01:26,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:01:26,733 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 178 [2020-07-20 13:01:26,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:26,740 INFO L225 Difference]: With dead ends: 1836 [2020-07-20 13:01:26,741 INFO L226 Difference]: Without dead ends: 1132 [2020-07-20 13:01:26,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:26,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2020-07-20 13:01:26,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1043. [2020-07-20 13:01:26,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2020-07-20 13:01:26,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1197 transitions. [2020-07-20 13:01:26,844 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1197 transitions. Word has length 178 [2020-07-20 13:01:26,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:26,846 INFO L479 AbstractCegarLoop]: Abstraction has 1043 states and 1197 transitions. [2020-07-20 13:01:26,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 13:01:26,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1197 transitions. [2020-07-20 13:01:26,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-20 13:01:26,852 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:26,853 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1] [2020-07-20 13:01:27,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:27,066 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:27,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:27,066 INFO L82 PathProgramCache]: Analyzing trace with hash 118260142, now seen corresponding path program 1 times [2020-07-20 13:01:27,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:27,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444058401] [2020-07-20 13:01:27,067 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:01:27,513 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:27,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:27,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 13:01:27,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:27,596 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-20 13:01:27,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:27,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444058401] [2020-07-20 13:01:27,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:27,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 13:01:27,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689552645] [2020-07-20 13:01:27,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 13:01:27,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:27,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 13:01:27,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:01:27,598 INFO L87 Difference]: Start difference. First operand 1043 states and 1197 transitions. Second operand 8 states. [2020-07-20 13:01:27,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:27,903 INFO L93 Difference]: Finished difference Result 1887 states and 2185 transitions. [2020-07-20 13:01:27,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 13:01:27,905 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 178 [2020-07-20 13:01:27,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:27,910 INFO L225 Difference]: With dead ends: 1887 [2020-07-20 13:01:27,910 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 13:01:27,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 170 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:01:27,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 13:01:27,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 13:01:27,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 13:01:27,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 13:01:27,917 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2020-07-20 13:01:27,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:27,917 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 13:01:27,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 13:01:27,917 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 13:01:27,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 13:01:28,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:28,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 13:01:29,506 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 16 [2020-07-20 13:01:30,007 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 30 [2020-07-20 13:01:30,529 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 22 [2020-07-20 13:01:30,725 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 15 [2020-07-20 13:01:30,925 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 19 [2020-07-20 13:01:31,198 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 25 [2020-07-20 13:01:31,343 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 19 [2020-07-20 13:01:31,641 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 24 [2020-07-20 13:01:31,748 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 20 [2020-07-20 13:01:31,882 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 19 [2020-07-20 13:01:32,028 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 19 [2020-07-20 13:01:32,475 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 30 [2020-07-20 13:01:32,595 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 19 [2020-07-20 13:01:32,717 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 23 [2020-07-20 13:01:32,994 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 24 [2020-07-20 13:01:33,211 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 19 [2020-07-20 13:01:33,754 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-07-20 13:01:33,994 INFO L268 CegarLoopResult]: For program point L507(lines 484 508) no Hoare annotation was computed. [2020-07-20 13:01:33,994 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 460 515) no Hoare annotation was computed. [2020-07-20 13:01:33,994 INFO L268 CegarLoopResult]: For program point L491(lines 491 495) no Hoare annotation was computed. [2020-07-20 13:01:33,995 INFO L268 CegarLoopResult]: For program point L491-1(lines 491 495) no Hoare annotation was computed. [2020-07-20 13:01:33,995 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 460 515) no Hoare annotation was computed. [2020-07-20 13:01:33,995 INFO L268 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-07-20 13:01:33,995 INFO L268 CegarLoopResult]: For program point L485-2(lines 485 506) no Hoare annotation was computed. [2020-07-20 13:01:33,995 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 460 515) no Hoare annotation was computed. [2020-07-20 13:01:33,996 INFO L268 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-07-20 13:01:33,996 INFO L268 CegarLoopResult]: For program point L542-2(lines 542 567) no Hoare annotation was computed. [2020-07-20 13:01:33,996 INFO L268 CegarLoopResult]: For program point L568(lines 541 569) no Hoare annotation was computed. [2020-07-20 13:01:33,996 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 516 575) no Hoare annotation was computed. [2020-07-20 13:01:33,996 INFO L268 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-07-20 13:01:33,996 INFO L268 CegarLoopResult]: For program point L561-1(line 561) no Hoare annotation was computed. [2020-07-20 13:01:33,996 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 516 575) no Hoare annotation was computed. [2020-07-20 13:01:33,997 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 516 575) no Hoare annotation was computed. [2020-07-20 13:01:33,997 INFO L268 CegarLoopResult]: For program point L548(lines 548 552) no Hoare annotation was computed. [2020-07-20 13:01:33,997 INFO L268 CegarLoopResult]: For program point L548-1(lines 548 552) no Hoare annotation was computed. [2020-07-20 13:01:33,997 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 391 397) the Hoare annotation is: true [2020-07-20 13:01:33,997 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 391 397) no Hoare annotation was computed. [2020-07-20 13:01:33,998 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 398 406) no Hoare annotation was computed. [2020-07-20 13:01:33,998 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 398 406) the Hoare annotation is: true [2020-07-20 13:01:33,998 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 398 406) no Hoare annotation was computed. [2020-07-20 13:01:33,998 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 846 868) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:01:33,998 INFO L264 CegarLoopResult]: At program point L858(line 858) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:01:33,999 INFO L264 CegarLoopResult]: At program point L858-1(line 858) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:01:33,999 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 846 868) no Hoare annotation was computed. [2020-07-20 13:01:33,999 INFO L268 CegarLoopResult]: For program point L856(lines 856 863) no Hoare annotation was computed. [2020-07-20 13:01:33,999 INFO L268 CegarLoopResult]: For program point L856-1(lines 856 863) no Hoare annotation was computed. [2020-07-20 13:01:33,999 INFO L268 CegarLoopResult]: For program point L854(line 854) no Hoare annotation was computed. [2020-07-20 13:01:33,999 INFO L264 CegarLoopResult]: At program point L853(line 853) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:01:33,999 INFO L264 CegarLoopResult]: At program point L852(line 852) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:01:34,000 INFO L264 CegarLoopResult]: At program point L852-1(line 852) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:01:34,000 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 846 868) no Hoare annotation was computed. [2020-07-20 13:01:34,000 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 805 828) no Hoare annotation was computed. [2020-07-20 13:01:34,000 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 805 828) no Hoare annotation was computed. [2020-07-20 13:01:34,000 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 805 828) no Hoare annotation was computed. [2020-07-20 13:01:34,000 INFO L268 CegarLoopResult]: For program point L823(line 823) no Hoare annotation was computed. [2020-07-20 13:01:34,000 INFO L268 CegarLoopResult]: For program point L822(line 822) no Hoare annotation was computed. [2020-07-20 13:01:34,000 INFO L268 CegarLoopResult]: For program point L821(line 821) no Hoare annotation was computed. [2020-07-20 13:01:34,000 INFO L268 CegarLoopResult]: For program point L820(line 820) no Hoare annotation was computed. [2020-07-20 13:01:34,000 INFO L268 CegarLoopResult]: For program point L819(line 819) no Hoare annotation was computed. [2020-07-20 13:01:34,000 INFO L268 CegarLoopResult]: For program point L818(line 818) no Hoare annotation was computed. [2020-07-20 13:01:34,001 INFO L268 CegarLoopResult]: For program point L817(line 817) no Hoare annotation was computed. [2020-07-20 13:01:34,001 INFO L268 CegarLoopResult]: For program point L816(line 816) no Hoare annotation was computed. [2020-07-20 13:01:34,001 INFO L268 CegarLoopResult]: For program point L815(line 815) no Hoare annotation was computed. [2020-07-20 13:01:34,001 INFO L268 CegarLoopResult]: For program point L814(line 814) no Hoare annotation was computed. [2020-07-20 13:01:34,001 INFO L268 CegarLoopResult]: For program point L813(line 813) no Hoare annotation was computed. [2020-07-20 13:01:34,001 INFO L268 CegarLoopResult]: For program point L812(line 812) no Hoare annotation was computed. [2020-07-20 13:01:34,001 INFO L268 CegarLoopResult]: For program point L811(line 811) no Hoare annotation was computed. [2020-07-20 13:01:34,001 INFO L268 CegarLoopResult]: For program point L810(line 810) no Hoare annotation was computed. [2020-07-20 13:01:34,001 INFO L264 CegarLoopResult]: At program point L127(line 127) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse2 .cse1))) [2020-07-20 13:01:34,001 INFO L264 CegarLoopResult]: At program point L123(line 123) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse2 .cse1))) [2020-07-20 13:01:34,002 INFO L268 CegarLoopResult]: For program point L121(lines 121 129) no Hoare annotation was computed. [2020-07-20 13:01:34,002 INFO L264 CegarLoopResult]: At program point L119(line 119) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse2 .cse1))) [2020-07-20 13:01:34,002 INFO L268 CegarLoopResult]: For program point L119-1(line 119) no Hoare annotation was computed. [2020-07-20 13:01:34,002 INFO L268 CegarLoopResult]: For program point L117(lines 117 134) no Hoare annotation was computed. [2020-07-20 13:01:34,002 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 113 137) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~methaneLevelCritical~0))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-20 13:01:34,002 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 113 137) no Hoare annotation was computed. [2020-07-20 13:01:34,002 INFO L264 CegarLoopResult]: At program point L132(line 132) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse1 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not .cse1) .cse2) (or .cse0 .cse3 .cse2) (or .cse1 .cse0 .cse3))) [2020-07-20 13:01:34,003 INFO L268 CegarLoopResult]: For program point L132-1(lines 113 137) no Hoare annotation was computed. [2020-07-20 13:01:34,003 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 208 216) no Hoare annotation was computed. [2020-07-20 13:01:34,003 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 208 216) the Hoare annotation is: true [2020-07-20 13:01:34,003 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 208 216) no Hoare annotation was computed. [2020-07-20 13:01:34,003 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 272 290) the Hoare annotation is: true [2020-07-20 13:01:34,003 INFO L268 CegarLoopResult]: For program point L281(lines 281 285) no Hoare annotation was computed. [2020-07-20 13:01:34,003 INFO L271 CegarLoopResult]: At program point L279(line 279) the Hoare annotation is: true [2020-07-20 13:01:34,003 INFO L268 CegarLoopResult]: For program point L281-2(lines 281 285) no Hoare annotation was computed. [2020-07-20 13:01:34,003 INFO L268 CegarLoopResult]: For program point L279-1(line 279) no Hoare annotation was computed. [2020-07-20 13:01:34,004 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 272 290) no Hoare annotation was computed. [2020-07-20 13:01:34,004 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 272 290) no Hoare annotation was computed. [2020-07-20 13:01:34,004 INFO L268 CegarLoopResult]: For program point L224(lines 224 232) no Hoare annotation was computed. [2020-07-20 13:01:34,004 INFO L268 CegarLoopResult]: For program point L224-2(lines 224 232) no Hoare annotation was computed. [2020-07-20 13:01:34,004 INFO L268 CegarLoopResult]: For program point L247(line 247) no Hoare annotation was computed. [2020-07-20 13:01:34,004 INFO L268 CegarLoopResult]: For program point L247-1(line 247) no Hoare annotation was computed. [2020-07-20 13:01:34,004 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 217 252) no Hoare annotation was computed. [2020-07-20 13:01:34,004 INFO L268 CegarLoopResult]: For program point L236(lines 236 244) no Hoare annotation was computed. [2020-07-20 13:01:34,005 INFO L268 CegarLoopResult]: For program point L236-2(lines 236 244) no Hoare annotation was computed. [2020-07-20 13:01:34,005 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 217 252) no Hoare annotation was computed. [2020-07-20 13:01:34,005 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 217 252) no Hoare annotation was computed. [2020-07-20 13:01:34,005 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 384 390) no Hoare annotation was computed. [2020-07-20 13:01:34,005 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 384 390) the Hoare annotation is: true [2020-07-20 13:01:34,005 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 414 459) no Hoare annotation was computed. [2020-07-20 13:01:34,005 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 414 459) no Hoare annotation was computed. [2020-07-20 13:01:34,005 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 414 459) no Hoare annotation was computed. [2020-07-20 13:01:34,005 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 727 772) no Hoare annotation was computed. [2020-07-20 13:01:34,006 INFO L268 CegarLoopResult]: For program point L747(lines 747 754) no Hoare annotation was computed. [2020-07-20 13:01:34,006 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 727 772) no Hoare annotation was computed. [2020-07-20 13:01:34,006 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 727 772) no Hoare annotation was computed. [2020-07-20 13:01:34,006 INFO L268 CegarLoopResult]: For program point L741(lines 741 761) no Hoare annotation was computed. [2020-07-20 13:01:34,006 INFO L268 CegarLoopResult]: For program point L741-1(lines 741 761) no Hoare annotation was computed. [2020-07-20 13:01:34,006 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 836 845) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:01:34,006 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 836 845) no Hoare annotation was computed. [2020-07-20 13:01:34,007 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 836 845) no Hoare annotation was computed. [2020-07-20 13:01:34,007 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 197 207) the Hoare annotation is: true [2020-07-20 13:01:34,007 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 197 207) no Hoare annotation was computed. [2020-07-20 13:01:34,007 INFO L271 CegarLoopResult]: At program point L202(line 202) the Hoare annotation is: true [2020-07-20 13:01:34,007 INFO L268 CegarLoopResult]: For program point L202-1(line 202) no Hoare annotation was computed. [2020-07-20 13:01:34,007 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 197 207) no Hoare annotation was computed. [2020-07-20 13:01:34,007 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 189 196) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0))))) [2020-07-20 13:01:34,008 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 189 196) no Hoare annotation was computed. [2020-07-20 13:01:34,008 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 189 196) no Hoare annotation was computed. [2020-07-20 13:01:34,008 INFO L268 CegarLoopResult]: For program point L954(lines 954 960) no Hoare annotation was computed. [2020-07-20 13:01:34,008 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 950 963) no Hoare annotation was computed. [2020-07-20 13:01:34,008 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 950 963) the Hoare annotation is: true [2020-07-20 13:01:34,008 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 950 963) no Hoare annotation was computed. [2020-07-20 13:01:34,008 INFO L264 CegarLoopResult]: At program point L158(line 158) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2) (or .cse4 .cse0 .cse1) (or .cse4 .cse0 .cse3))) [2020-07-20 13:01:34,009 INFO L268 CegarLoopResult]: For program point L158-1(lines 139 163) no Hoare annotation was computed. [2020-07-20 13:01:34,009 INFO L264 CegarLoopResult]: At program point L153(line 153) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2020-07-20 13:01:34,009 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 139 163) no Hoare annotation was computed. [2020-07-20 13:01:34,009 INFO L264 CegarLoopResult]: At program point L149(line 149) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 (and .cse1 (<= ~methaneLevelCritical~0 processEnvironment_~tmp~2))) (or .cse0 .cse3 .cse4) (or .cse0 .cse4 .cse2))) [2020-07-20 13:01:34,009 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 139 163) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2020-07-20 13:01:34,009 INFO L268 CegarLoopResult]: For program point L147(lines 147 155) no Hoare annotation was computed. [2020-07-20 13:01:34,010 INFO L264 CegarLoopResult]: At program point L145(line 145) the Hoare annotation is: (let ((.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4) (or .cse0 .cse4 .cse2) (or .cse0 .cse3 .cse1))) [2020-07-20 13:01:34,010 INFO L268 CegarLoopResult]: For program point L145-1(line 145) no Hoare annotation was computed. [2020-07-20 13:01:34,010 INFO L268 CegarLoopResult]: For program point L143(lines 143 160) no Hoare annotation was computed. [2020-07-20 13:01:34,010 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 79 85) no Hoare annotation was computed. [2020-07-20 13:01:34,010 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 79 85) the Hoare annotation is: true [2020-07-20 13:01:34,010 INFO L264 CegarLoopResult]: At program point testENTRY(lines 303 368) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:01:34,010 INFO L268 CegarLoopResult]: For program point L351(lines 351 355) no Hoare annotation was computed. [2020-07-20 13:01:34,011 INFO L264 CegarLoopResult]: At program point L351-2(lines 343 356) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 13:01:34,011 INFO L268 CegarLoopResult]: For program point L314(lines 313 360) no Hoare annotation was computed. [2020-07-20 13:01:34,011 INFO L264 CegarLoopResult]: At program point L345(line 345) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 13:01:34,011 INFO L268 CegarLoopResult]: For program point L343(lines 343 356) no Hoare annotation was computed. [2020-07-20 13:01:34,011 INFO L268 CegarLoopResult]: For program point testFINAL(lines 303 368) no Hoare annotation was computed. [2020-07-20 13:01:34,011 INFO L264 CegarLoopResult]: At program point L335(line 335) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (<= 1 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) .cse0 .cse1) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 13:01:34,012 INFO L268 CegarLoopResult]: For program point L333(lines 333 339) no Hoare annotation was computed. [2020-07-20 13:01:34,012 INFO L268 CegarLoopResult]: For program point L333-1(lines 333 339) no Hoare annotation was computed. [2020-07-20 13:01:34,012 INFO L264 CegarLoopResult]: At program point L358(lines 313 360) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (<= 1 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) .cse0 .cse1) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 13:01:34,012 INFO L264 CegarLoopResult]: At program point L325(line 325) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (<= 1 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) .cse0 .cse1) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 13:01:34,012 INFO L268 CegarLoopResult]: For program point L323(lines 323 329) no Hoare annotation was computed. [2020-07-20 13:01:34,012 INFO L268 CegarLoopResult]: For program point L323-1(lines 323 329) no Hoare annotation was computed. [2020-07-20 13:01:34,012 INFO L268 CegarLoopResult]: For program point L315(lines 315 319) no Hoare annotation was computed. [2020-07-20 13:01:34,012 INFO L264 CegarLoopResult]: At program point L361(lines 312 362) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:01:34,013 INFO L268 CegarLoopResult]: For program point testEXIT(lines 303 368) no Hoare annotation was computed. [2020-07-20 13:01:34,013 INFO L268 CegarLoopResult]: For program point L701(lines 701 708) no Hoare annotation was computed. [2020-07-20 13:01:34,013 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 681 726) no Hoare annotation was computed. [2020-07-20 13:01:34,013 INFO L268 CegarLoopResult]: For program point L695(lines 695 715) no Hoare annotation was computed. [2020-07-20 13:01:34,013 INFO L268 CegarLoopResult]: For program point L695-1(lines 695 715) no Hoare annotation was computed. [2020-07-20 13:01:34,013 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 681 726) no Hoare annotation was computed. [2020-07-20 13:01:34,013 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 681 726) no Hoare annotation was computed. [2020-07-20 13:01:34,013 INFO L264 CegarLoopResult]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 164 171) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 ~methaneLevelCritical~0)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-20 13:01:34,013 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 164 171) no Hoare annotation was computed. [2020-07-20 13:01:34,014 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 164 171) no Hoare annotation was computed. [2020-07-20 13:01:34,014 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 964 972) no Hoare annotation was computed. [2020-07-20 13:01:34,014 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 964 972) the Hoare annotation is: true [2020-07-20 13:01:34,014 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 964 972) no Hoare annotation was computed. [2020-07-20 13:01:34,014 INFO L268 CegarLoopResult]: For program point L926(lines 926 934) no Hoare annotation was computed. [2020-07-20 13:01:34,014 INFO L268 CegarLoopResult]: For program point L926-2(lines 926 934) no Hoare annotation was computed. [2020-07-20 13:01:34,014 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 918 940) no Hoare annotation was computed. [2020-07-20 13:01:34,014 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 918 940) no Hoare annotation was computed. [2020-07-20 13:01:34,014 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 918 940) no Hoare annotation was computed. [2020-07-20 13:01:34,015 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 374 383) no Hoare annotation was computed. [2020-07-20 13:01:34,015 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 374 383) no Hoare annotation was computed. [2020-07-20 13:01:34,015 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 374 383) no Hoare annotation was computed. [2020-07-20 13:01:34,015 INFO L268 CegarLoopResult]: For program point L607(lines 607 623) no Hoare annotation was computed. [2020-07-20 13:01:34,015 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 578 680) no Hoare annotation was computed. [2020-07-20 13:01:34,015 INFO L268 CegarLoopResult]: For program point L667(lines 667 674) no Hoare annotation was computed. [2020-07-20 13:01:34,015 INFO L268 CegarLoopResult]: For program point L628(lines 627 647) no Hoare annotation was computed. [2020-07-20 13:01:34,015 INFO L268 CegarLoopResult]: For program point L659(line 659) no Hoare annotation was computed. [2020-07-20 13:01:34,015 INFO L268 CegarLoopResult]: For program point L659-1(line 659) no Hoare annotation was computed. [2020-07-20 13:01:34,016 INFO L268 CegarLoopResult]: For program point L624(lines 624 665) no Hoare annotation was computed. [2020-07-20 13:01:34,016 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 578 680) no Hoare annotation was computed. [2020-07-20 13:01:34,016 INFO L268 CegarLoopResult]: For program point L643(line 643) no Hoare annotation was computed. [2020-07-20 13:01:34,016 INFO L268 CegarLoopResult]: For program point L643-1(line 643) no Hoare annotation was computed. [2020-07-20 13:01:34,016 INFO L268 CegarLoopResult]: For program point L602(lines 602 606) no Hoare annotation was computed. [2020-07-20 13:01:34,016 INFO L268 CegarLoopResult]: For program point L666(lines 666 677) no Hoare annotation was computed. [2020-07-20 13:01:34,016 INFO L268 CegarLoopResult]: For program point L629(lines 629 633) no Hoare annotation was computed. [2020-07-20 13:01:34,016 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 578 680) no Hoare annotation was computed. [2020-07-20 13:01:34,016 INFO L268 CegarLoopResult]: For program point L627-2(lines 627 647) no Hoare annotation was computed. [2020-07-20 13:01:34,017 INFO L268 CegarLoopResult]: For program point L648(lines 626 649) no Hoare annotation was computed. [2020-07-20 13:01:34,017 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 13:01:34,017 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-20 13:01:34,017 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 13:01:34,017 INFO L264 CegarLoopResult]: At program point L177(line 177) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-20 13:01:34,017 INFO L268 CegarLoopResult]: For program point L177-1(line 177) no Hoare annotation was computed. [2020-07-20 13:01:34,017 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 172 188) no Hoare annotation was computed. [2020-07-20 13:01:34,018 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 172 188) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-20 13:01:34,018 INFO L264 CegarLoopResult]: At program point L183(line 183) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) (= 0 ~pumpRunning~0) .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2))) [2020-07-20 13:01:34,018 INFO L268 CegarLoopResult]: For program point L183-1(lines 172 188) no Hoare annotation was computed. [2020-07-20 13:01:34,018 INFO L268 CegarLoopResult]: For program point L179(lines 179 185) no Hoare annotation was computed. [2020-07-20 13:01:34,018 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 253 271) no Hoare annotation was computed. [2020-07-20 13:01:34,018 INFO L268 CegarLoopResult]: For program point L262(lines 262 266) no Hoare annotation was computed. [2020-07-20 13:01:34,018 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 253 271) the Hoare annotation is: true [2020-07-20 13:01:34,018 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 253 271) no Hoare annotation was computed. [2020-07-20 13:01:34,018 INFO L271 CegarLoopResult]: At program point L260(line 260) the Hoare annotation is: true [2020-07-20 13:01:34,019 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 266) no Hoare annotation was computed. [2020-07-20 13:01:34,019 INFO L268 CegarLoopResult]: For program point L260-1(line 260) no Hoare annotation was computed. [2020-07-20 13:01:34,019 INFO L268 CegarLoopResult]: For program point getWaterLevelENTRY(lines 941 949) no Hoare annotation was computed. [2020-07-20 13:01:34,019 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 941 949) no Hoare annotation was computed. [2020-07-20 13:01:34,019 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 941 949) no Hoare annotation was computed. [2020-07-20 13:01:34,019 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 897 908) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (<= 1 ~methaneLevelCritical~0) (not (= 0 ~pumpRunning~0)) (not (<= 1 |old(~methaneLevelCritical~0)|))) (or .cse0 (= 0 ~methaneLevelCritical~0) (not (= |old(~methaneLevelCritical~0)| 0))))) [2020-07-20 13:01:34,019 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 897 908) no Hoare annotation was computed. [2020-07-20 13:01:34,019 INFO L268 CegarLoopResult]: For program point L901-1(lines 897 908) no Hoare annotation was computed. [2020-07-20 13:01:34,020 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-20 13:01:34,020 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-20 13:01:34,020 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-20 13:01:34,020 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 909 917) the Hoare annotation is: true [2020-07-20 13:01:34,020 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 909 917) no Hoare annotation was computed. [2020-07-20 13:01:34,020 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 909 917) no Hoare annotation was computed. [2020-07-20 13:01:34,020 INFO L264 CegarLoopResult]: At program point L61(line 61) the Hoare annotation is: (let ((.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (<= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse3) (or .cse4 .cse0 .cse5 .cse6) (or .cse0 .cse5 .cse2) (or .cse0 .cse3 .cse5) (or .cse4 .cse0 .cse1 .cse6))) [2020-07-20 13:01:34,020 INFO L268 CegarLoopResult]: For program point L59(lines 58 77) no Hoare annotation was computed. [2020-07-20 13:01:34,021 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 55 78) the Hoare annotation is: (let ((.cse4 (not (= 0 ~methaneLevelCritical~0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse3 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (<= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse4 .cse5) (or .cse0 .cse4 .cse2) (or .cse3 .cse0 .cse1 .cse5))) [2020-07-20 13:01:34,021 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 55 78) no Hoare annotation was computed. [2020-07-20 13:01:34,021 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 55 78) no Hoare annotation was computed. [2020-07-20 13:01:34,021 INFO L264 CegarLoopResult]: At program point L68(line 68) the Hoare annotation is: (let ((.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (and (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse7 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (<= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse2 .cse4) (or .cse0 .cse5 .cse6 .cse2) (or .cse0 .cse7 .cse1) (or .cse0 .cse7 .cse5 .cse6) (or .cse3 .cse0 .cse7 .cse4))) [2020-07-20 13:01:34,021 INFO L264 CegarLoopResult]: At program point L66(lines 66 72) the Hoare annotation is: (let ((.cse6 (= 0 |old(~pumpRunning~0)|))) (let ((.cse4 (= 0 ~pumpRunning~0)) (.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse2 (not .cse6)) (.cse8 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse7 (<= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse4) (or .cse6 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse7) (or .cse1 .cse2 .cse3 .cse8) (or .cse1 .cse5 .cse2 .cse8) (or .cse0 .cse1 .cse5 .cse7)))) [2020-07-20 13:01:34,021 INFO L271 CegarLoopResult]: At program point L800(lines 775 804) the Hoare annotation is: true [2020-07-20 13:01:34,022 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 775 804) no Hoare annotation was computed. [2020-07-20 13:01:34,022 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 775 804) the Hoare annotation is: true [2020-07-20 13:01:34,022 INFO L268 CegarLoopResult]: For program point L796(line 796) no Hoare annotation was computed. [2020-07-20 13:01:34,022 INFO L268 CegarLoopResult]: For program point L789(lines 789 793) no Hoare annotation was computed. [2020-07-20 13:01:34,022 INFO L271 CegarLoopResult]: At program point L789-1(lines 789 793) the Hoare annotation is: true [2020-07-20 13:01:34,022 INFO L268 CegarLoopResult]: For program point L786(line 786) no Hoare annotation was computed. [2020-07-20 13:01:34,022 INFO L271 CegarLoopResult]: At program point L785-2(lines 785 799) the Hoare annotation is: true [2020-07-20 13:01:34,022 INFO L271 CegarLoopResult]: At program point L781(line 781) the Hoare annotation is: true [2020-07-20 13:01:34,023 INFO L268 CegarLoopResult]: For program point L781-1(line 781) no Hoare annotation was computed. [2020-07-20 13:01:34,023 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 873 884) the Hoare annotation is: (let ((.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (= 0 ~pumpRunning~0)) (.cse5 (<= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse2 .cse5) (or .cse0 .cse6 .cse2 .cse3) (or .cse4 .cse0 .cse6 .cse2 .cse5))) [2020-07-20 13:01:34,023 INFO L268 CegarLoopResult]: For program point L877-1(lines 873 884) no Hoare annotation was computed. [2020-07-20 13:01:34,023 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 873 884) no Hoare annotation was computed. [2020-07-20 13:01:34,023 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 829 835) no Hoare annotation was computed. [2020-07-20 13:01:34,023 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 829 835) the Hoare annotation is: true [2020-07-20 13:01:34,023 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 13:01:34,023 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-20 13:01:34,024 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 13:01:34,024 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 13:01:34,024 INFO L268 CegarLoopResult]: For program point startSystemEXIT(lines 291 298) no Hoare annotation was computed. [2020-07-20 13:01:34,024 INFO L264 CegarLoopResult]: At program point startSystemENTRY(lines 291 298) the Hoare annotation is: (let ((.cse0 (<= 1 ~systemActive~0)) (.cse1 (not (<= 1 |old(~systemActive~0)|)))) (and (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1) (or (not (= 0 ~methaneLevelCritical~0)) .cse0 .cse1))) [2020-07-20 13:01:34,024 INFO L268 CegarLoopResult]: For program point startSystemFINAL(lines 291 298) no Hoare annotation was computed. [2020-07-20 13:01:34,024 INFO L264 CegarLoopResult]: At program point L97(line 97) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= 0 ~pumpRunning~0))) (and (or .cse0 (and .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (not (= 0 ~methaneLevelCritical~0))) (or .cse0 (and .cse1 .cse2) (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-20 13:01:34,024 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 87 111) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~methaneLevelCritical~0))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-20 13:01:34,025 INFO L268 CegarLoopResult]: For program point L95(lines 95 103) no Hoare annotation was computed. [2020-07-20 13:01:34,025 INFO L264 CegarLoopResult]: At program point L93(line 93) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse1 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not .cse1) .cse2) (or .cse0 .cse3 .cse2) (or .cse1 .cse0 .cse3))) [2020-07-20 13:01:34,025 INFO L268 CegarLoopResult]: For program point L93-1(line 93) no Hoare annotation was computed. [2020-07-20 13:01:34,025 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 87 111) no Hoare annotation was computed. [2020-07-20 13:01:34,025 INFO L268 CegarLoopResult]: For program point L91(lines 91 108) no Hoare annotation was computed. [2020-07-20 13:01:34,025 INFO L264 CegarLoopResult]: At program point L106(line 106) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse2 .cse1))) [2020-07-20 13:01:34,025 INFO L268 CegarLoopResult]: For program point L106-1(lines 87 111) no Hoare annotation was computed. [2020-07-20 13:01:34,025 INFO L264 CegarLoopResult]: At program point L101(line 101) the Hoare annotation is: (let ((.cse1 (and (= 0 ~pumpRunning~0) (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0))) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 (not .cse2)) (or .cse0 .cse1 .cse3) (or .cse2 .cse0 .cse3))) [2020-07-20 13:01:34,026 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 885 896) no Hoare annotation was computed. [2020-07-20 13:01:34,026 INFO L268 CegarLoopResult]: For program point L889-1(lines 885 896) no Hoare annotation was computed. [2020-07-20 13:01:34,026 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 885 896) the Hoare annotation is: (let ((.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (<= ~waterLevel~0 1)) (.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse6) (or .cse0 .cse5 .cse3) (or .cse4 .cse0 .cse1 .cse6 .cse2))) [2020-07-20 13:01:34,026 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 1001 1008) no Hoare annotation was computed. [2020-07-20 13:01:34,026 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1005) no Hoare annotation was computed. [2020-07-20 13:01:34,026 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 1001 1008) the Hoare annotation is: true [2020-07-20 13:01:34,026 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 1001 1008) no Hoare annotation was computed. [2020-07-20 13:01:34,026 INFO L264 CegarLoopResult]: At program point L989(line 989) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 ~pumpRunning~0))) (or .cse0 (not (= 0 ~methaneLevelCritical~0))))) [2020-07-20 13:01:34,027 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 975 999) the Hoare annotation is: true [2020-07-20 13:01:34,027 INFO L268 CegarLoopResult]: For program point L987(lines 987 993) no Hoare annotation was computed. [2020-07-20 13:01:34,027 INFO L264 CegarLoopResult]: At program point L985(line 985) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 ~methaneLevelCritical~0))) [2020-07-20 13:01:34,027 INFO L268 CegarLoopResult]: For program point L985-1(line 985) no Hoare annotation was computed. [2020-07-20 13:01:34,027 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification1_spec__1EXIT(lines 975 999) no Hoare annotation was computed. [2020-07-20 13:01:34,027 INFO L268 CegarLoopResult]: For program point L983(lines 983 996) no Hoare annotation was computed. [2020-07-20 13:01:34,027 INFO L268 CegarLoopResult]: For program point L983-1(lines 975 999) no Hoare annotation was computed. [2020-07-20 13:01:34,027 INFO L271 CegarLoopResult]: At program point L981(line 981) the Hoare annotation is: true [2020-07-20 13:01:34,027 INFO L268 CegarLoopResult]: For program point L981-1(line 981) no Hoare annotation was computed. [2020-07-20 13:01:34,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:01:34 BoogieIcfgContainer [2020-07-20 13:01:34,045 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:01:34,047 INFO L168 Benchmark]: Toolchain (without parser) took 19521.55 ms. Allocated memory was 146.8 MB in the beginning and 421.0 MB in the end (delta: 274.2 MB). Free memory was 102.3 MB in the beginning and 252.8 MB in the end (delta: -150.5 MB). Peak memory consumption was 285.4 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:34,047 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 146.8 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 13:01:34,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.29 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 101.9 MB in the beginning and 174.5 MB in the end (delta: -72.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:34,049 INFO L168 Benchmark]: Boogie Preprocessor took 82.43 ms. Allocated memory is still 205.5 MB. Free memory was 174.5 MB in the beginning and 170.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:34,050 INFO L168 Benchmark]: RCFGBuilder took 1107.85 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 170.5 MB in the beginning and 193.7 MB in the end (delta: -23.2 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:34,050 INFO L168 Benchmark]: TraceAbstraction took 17665.47 ms. Allocated memory was 237.0 MB in the beginning and 421.0 MB in the end (delta: 184.0 MB). Free memory was 193.7 MB in the beginning and 252.8 MB in the end (delta: -59.1 MB). Peak memory consumption was 286.6 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:34,053 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 146.8 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 659.29 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 101.9 MB in the beginning and 174.5 MB in the end (delta: -72.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.43 ms. Allocated memory is still 205.5 MB. Free memory was 174.5 MB in the beginning and 170.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1107.85 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 170.5 MB in the beginning and 193.7 MB in the end (delta: -23.2 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17665.47 ms. Allocated memory was 237.0 MB in the beginning and 421.0 MB in the end (delta: 184.0 MB). Free memory was 193.7 MB in the beginning and 252.8 MB in the end (delta: -59.1 MB). Peak memory consumption was 286.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1005]: 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: 775]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 313]: Loop Invariant Derived loop invariant: ((((((0 == methaneLevelCritical && splverifierCounter <= 0) && 1 <= systemActive) || (((1 <= methaneLevelCritical && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive)) || !(\old(waterLevel) <= 1)) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(systemActive)) - InvariantResult [Line: 312]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(systemActive)) - InvariantResult [Line: 785]: 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: 11.6s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2483 SDtfs, 1170 SDslu, 4210 SDs, 0 SdLazy, 1489 SolverSat, 316 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1160 GetRequests, 1113 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1043occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 126 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 2324 PreInvPairs, 2429 NumberOfFragments, 1878 HoareAnnotationTreeSize, 2324 FomulaSimplifications, 2283 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 70 FomulaSimplificationsInter, 10208 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1163 NumberOfCodeBlocks, 1005 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 1151 ConstructedInterpolants, 0 QuantifiedInterpolants, 221470 SizeOfPredicates, 28 NumberOfNonLiveVariables, 8899 ConjunctsInSsa, 102 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 118/118 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...