/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_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 15:41:39,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 15:41:39,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 15:41:39,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 15:41:39,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 15:41:39,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 15:41:39,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 15:41:39,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 15:41:39,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 15:41:39,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 15:41:39,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 15:41:39,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 15:41:39,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 15:41:39,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 15:41:39,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 15:41:39,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 15:41:39,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 15:41:39,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 15:41:39,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 15:41:39,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 15:41:39,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 15:41:39,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 15:41:39,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 15:41:39,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 15:41:39,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 15:41:39,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 15:41:39,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 15:41:39,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 15:41:39,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 15:41:39,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 15:41:39,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 15:41:39,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 15:41:39,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 15:41:39,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 15:41:39,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 15:41:39,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 15:41:39,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 15:41:39,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 15:41:39,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 15:41:39,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 15:41:39,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 15:41:39,239 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 15:41:39,253 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 15:41:39,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 15:41:39,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 15:41:39,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 15:41:39,255 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 15:41:39,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 15:41:39,255 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 15:41:39,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 15:41:39,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 15:41:39,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 15:41:39,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 15:41:39,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 15:41:39,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 15:41:39,257 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 15:41:39,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 15:41:39,257 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 15:41:39,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 15:41:39,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 15:41:39,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 15:41:39,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 15:41:39,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 15:41:39,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:41:39,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 15:41:39,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 15:41:39,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 15:41:39,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 15:41:39,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:39,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 15:41:39,259 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 15:41:39,260 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_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 15:41:39,525 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 15:41:39,540 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 15:41:39,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 15:41:39,544 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 15:41:39,544 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 15:41:39,545 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product53.cil.c [2020-07-21 15:41:39,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/417ac4a69/db953334d1e149d8b20c78dc87fdf4d1/FLAGbbe0a2320 [2020-07-21 15:41:40,269 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 15:41:40,269 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product53.cil.c [2020-07-21 15:41:40,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/417ac4a69/db953334d1e149d8b20c78dc87fdf4d1/FLAGbbe0a2320 [2020-07-21 15:41:40,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/417ac4a69/db953334d1e149d8b20c78dc87fdf4d1 [2020-07-21 15:41:40,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 15:41:40,573 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 15:41:40,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 15:41:40,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 15:41:40,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 15:41:40,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:41:40" (1/1) ... [2020-07-21 15:41:40,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f25a514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:40, skipping insertion in model container [2020-07-21 15:41:40,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:41:40" (1/1) ... [2020-07-21 15:41:40,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 15:41:40,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 15:41:41,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:41:41,151 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 15:41:41,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:41:41,295 INFO L208 MainTranslator]: Completed translation [2020-07-21 15:41:41,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:41 WrapperNode [2020-07-21 15:41:41,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 15:41:41,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 15:41:41,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 15:41:41,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 15:41:41,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:41" (1/1) ... [2020-07-21 15:41:41,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:41" (1/1) ... [2020-07-21 15:41:41,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:41" (1/1) ... [2020-07-21 15:41:41,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:41" (1/1) ... [2020-07-21 15:41:41,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:41" (1/1) ... [2020-07-21 15:41:41,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:41" (1/1) ... [2020-07-21 15:41:41,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:41" (1/1) ... [2020-07-21 15:41:41,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 15:41:41,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 15:41:41,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 15:41:41,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 15:41:41,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:41:41,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 15:41:41,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 15:41:41,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 15:41:41,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 15:41:41,446 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 15:41:41,446 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 15:41:41,446 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 15:41:41,446 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 15:41:41,446 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 15:41:41,446 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 15:41:41,447 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 15:41:41,447 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 15:41:41,447 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-21 15:41:41,447 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 15:41:41,447 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 15:41:41,448 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 15:41:41,448 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 15:41:41,448 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 15:41:41,448 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 15:41:41,448 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 15:41:41,448 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 15:41:41,448 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 15:41:41,449 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 15:41:41,449 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 15:41:41,449 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 15:41:41,449 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 15:41:41,449 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 15:41:41,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 15:41:41,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 15:41:41,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 15:41:41,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 15:41:41,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 15:41:41,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 15:41:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 15:41:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 15:41:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 15:41:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 15:41:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 15:41:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 15:41:41,452 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 15:41:41,452 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 15:41:41,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 15:41:41,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 15:41:41,452 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 15:41:41,452 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 15:41:41,452 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 15:41:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 15:41:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 15:41:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 15:41:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 15:41:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 15:41:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 15:41:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 15:41:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 15:41:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 15:41:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 15:41:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 15:41:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 15:41:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 15:41:41,455 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 15:41:41,455 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 15:41:41,455 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 15:41:41,455 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 15:41:41,455 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 15:41:41,455 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 15:41:41,456 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 15:41:41,456 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 15:41:41,456 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 15:41:41,456 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 15:41:41,456 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-21 15:41:41,456 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 15:41:41,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 15:41:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 15:41:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 15:41:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 15:41:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 15:41:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 15:41:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 15:41:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 15:41:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 15:41:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 15:41:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 15:41:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 15:41:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 15:41:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 15:41:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 15:41:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 15:41:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 15:41:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 15:41:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 15:41:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 15:41:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 15:41:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 15:41:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 15:41:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 15:41:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 15:41:42,461 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 15:41:42,461 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 15:41:42,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:41:42 BoogieIcfgContainer [2020-07-21 15:41:42,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 15:41:42,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 15:41:42,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 15:41:42,471 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 15:41:42,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:41:40" (1/3) ... [2020-07-21 15:41:42,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1899e617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:41:42, skipping insertion in model container [2020-07-21 15:41:42,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:41" (2/3) ... [2020-07-21 15:41:42,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1899e617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:41:42, skipping insertion in model container [2020-07-21 15:41:42,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:41:42" (3/3) ... [2020-07-21 15:41:42,474 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product53.cil.c [2020-07-21 15:41:42,485 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 15:41:42,493 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 15:41:42,506 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 15:41:42,527 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 15:41:42,528 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 15:41:42,528 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 15:41:42,528 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 15:41:42,528 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 15:41:42,529 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 15:41:42,529 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 15:41:42,529 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 15:41:42,553 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-07-21 15:41:42,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 15:41:42,564 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:42,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:41:42,566 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:42,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:42,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1930033303, now seen corresponding path program 1 times [2020-07-21 15:41:42,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:42,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141576565] [2020-07-21 15:41:42,583 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:42,977 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:42,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:42,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 15:41:42,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:43,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:43,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:43,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141576565] [2020-07-21 15:41:43,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:43,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 15:41:43,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158249804] [2020-07-21 15:41:43,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 15:41:43,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:43,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 15:41:43,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:41:43,065 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 2 states. [2020-07-21 15:41:43,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:43,117 INFO L93 Difference]: Finished difference Result 298 states and 371 transitions. [2020-07-21 15:41:43,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 15:41:43,119 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 15:41:43,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:43,134 INFO L225 Difference]: With dead ends: 298 [2020-07-21 15:41:43,135 INFO L226 Difference]: Without dead ends: 149 [2020-07-21 15:41:43,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:41:43,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-07-21 15:41:43,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2020-07-21 15:41:43,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-07-21 15:41:43,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 177 transitions. [2020-07-21 15:41:43,209 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 177 transitions. Word has length 52 [2020-07-21 15:41:43,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:43,210 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 177 transitions. [2020-07-21 15:41:43,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 15:41:43,210 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 177 transitions. [2020-07-21 15:41:43,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 15:41:43,215 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:43,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:41:43,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:43,432 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:43,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:43,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1692135718, now seen corresponding path program 1 times [2020-07-21 15:41:43,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:43,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972343079] [2020-07-21 15:41:43,435 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:43,779 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:43,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:43,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:41:43,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:43,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:43,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:43,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972343079] [2020-07-21 15:41:43,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:43,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:41:43,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712955435] [2020-07-21 15:41:43,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:41:43,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:43,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:41:43,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:41:43,836 INFO L87 Difference]: Start difference. First operand 149 states and 177 transitions. Second operand 3 states. [2020-07-21 15:41:43,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:43,862 INFO L93 Difference]: Finished difference Result 274 states and 333 transitions. [2020-07-21 15:41:43,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:41:43,863 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 15:41:43,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:43,865 INFO L225 Difference]: With dead ends: 274 [2020-07-21 15:41:43,866 INFO L226 Difference]: Without dead ends: 149 [2020-07-21 15:41:43,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:41:43,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-07-21 15:41:43,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2020-07-21 15:41:43,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-07-21 15:41:43,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 176 transitions. [2020-07-21 15:41:43,886 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 176 transitions. Word has length 53 [2020-07-21 15:41:43,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:43,886 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 176 transitions. [2020-07-21 15:41:43,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:41:43,887 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 176 transitions. [2020-07-21 15:41:43,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-21 15:41:43,890 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:43,890 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] [2020-07-21 15:41:44,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:44,106 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:44,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:44,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1627152234, now seen corresponding path program 1 times [2020-07-21 15:41:44,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:44,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21099218] [2020-07-21 15:41:44,109 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:44,330 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:41:44,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:44,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:41:44,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:44,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:44,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21099218] [2020-07-21 15:41:44,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:44,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:41:44,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273079458] [2020-07-21 15:41:44,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:41:44,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:44,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:41:44,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:41:44,360 INFO L87 Difference]: Start difference. First operand 149 states and 176 transitions. Second operand 3 states. [2020-07-21 15:41:44,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:44,381 INFO L93 Difference]: Finished difference Result 247 states and 291 transitions. [2020-07-21 15:41:44,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:41:44,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-21 15:41:44,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:44,384 INFO L225 Difference]: With dead ends: 247 [2020-07-21 15:41:44,384 INFO L226 Difference]: Without dead ends: 140 [2020-07-21 15:41:44,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:41:44,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-21 15:41:44,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-21 15:41:44,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-21 15:41:44,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 164 transitions. [2020-07-21 15:41:44,403 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 164 transitions. Word has length 71 [2020-07-21 15:41:44,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:44,404 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 164 transitions. [2020-07-21 15:41:44,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:41:44,404 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 164 transitions. [2020-07-21 15:41:44,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-21 15:41:44,408 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:44,408 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] [2020-07-21 15:41:44,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:44,623 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:44,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:44,623 INFO L82 PathProgramCache]: Analyzing trace with hash 875217030, now seen corresponding path program 1 times [2020-07-21 15:41:44,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:44,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451285038] [2020-07-21 15:41:44,624 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:44,941 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:44,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:44,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 15:41:44,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:45,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:45,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451285038] [2020-07-21 15:41:45,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:45,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:41:45,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635339795] [2020-07-21 15:41:45,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:41:45,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:45,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:41:45,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:41:45,036 INFO L87 Difference]: Start difference. First operand 140 states and 164 transitions. Second operand 6 states. [2020-07-21 15:41:45,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:45,349 INFO L93 Difference]: Finished difference Result 363 states and 456 transitions. [2020-07-21 15:41:45,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:41:45,350 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 75 [2020-07-21 15:41:45,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:45,358 INFO L225 Difference]: With dead ends: 363 [2020-07-21 15:41:45,358 INFO L226 Difference]: Without dead ends: 247 [2020-07-21 15:41:45,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:41:45,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2020-07-21 15:41:45,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 245. [2020-07-21 15:41:45,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-07-21 15:41:45,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 300 transitions. [2020-07-21 15:41:45,416 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 300 transitions. Word has length 75 [2020-07-21 15:41:45,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:45,417 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 300 transitions. [2020-07-21 15:41:45,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:41:45,417 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 300 transitions. [2020-07-21 15:41:45,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-21 15:41:45,421 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:45,421 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] [2020-07-21 15:41:45,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:45,635 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:45,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:45,636 INFO L82 PathProgramCache]: Analyzing trace with hash -2103626964, now seen corresponding path program 1 times [2020-07-21 15:41:45,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:45,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1790314231] [2020-07-21 15:41:45,637 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:45,943 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:45,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:45,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 15:41:45,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:45,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:45,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:45,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1790314231] [2020-07-21 15:41:45,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:45,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:41:45,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156685384] [2020-07-21 15:41:45,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:41:45,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:45,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:41:45,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:41:45,993 INFO L87 Difference]: Start difference. First operand 245 states and 300 transitions. Second operand 6 states. [2020-07-21 15:41:46,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:46,237 INFO L93 Difference]: Finished difference Result 580 states and 747 transitions. [2020-07-21 15:41:46,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 15:41:46,238 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-07-21 15:41:46,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:46,241 INFO L225 Difference]: With dead ends: 580 [2020-07-21 15:41:46,241 INFO L226 Difference]: Without dead ends: 359 [2020-07-21 15:41:46,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:41:46,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-07-21 15:41:46,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 355. [2020-07-21 15:41:46,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-07-21 15:41:46,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 437 transitions. [2020-07-21 15:41:46,268 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 437 transitions. Word has length 79 [2020-07-21 15:41:46,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:46,269 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 437 transitions. [2020-07-21 15:41:46,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:41:46,269 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 437 transitions. [2020-07-21 15:41:46,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-07-21 15:41:46,272 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:46,272 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] [2020-07-21 15:41:46,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:46,485 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:46,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:46,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1560023623, now seen corresponding path program 1 times [2020-07-21 15:41:46,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:46,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081938620] [2020-07-21 15:41:46,487 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:46,745 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:46,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:46,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-21 15:41:46,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 15:41:46,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:46,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081938620] [2020-07-21 15:41:46,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:46,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 15:41:46,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863187749] [2020-07-21 15:41:46,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 15:41:46,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:46,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 15:41:46,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-21 15:41:46,840 INFO L87 Difference]: Start difference. First operand 355 states and 437 transitions. Second operand 10 states. [2020-07-21 15:41:48,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:48,269 INFO L93 Difference]: Finished difference Result 1014 states and 1434 transitions. [2020-07-21 15:41:48,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 15:41:48,270 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-07-21 15:41:48,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:48,278 INFO L225 Difference]: With dead ends: 1014 [2020-07-21 15:41:48,278 INFO L226 Difference]: Without dead ends: 683 [2020-07-21 15:41:48,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2020-07-21 15:41:48,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2020-07-21 15:41:48,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 485. [2020-07-21 15:41:48,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-07-21 15:41:48,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 605 transitions. [2020-07-21 15:41:48,373 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 605 transitions. Word has length 85 [2020-07-21 15:41:48,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:48,374 INFO L479 AbstractCegarLoop]: Abstraction has 485 states and 605 transitions. [2020-07-21 15:41:48,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 15:41:48,376 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 605 transitions. [2020-07-21 15:41:48,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-07-21 15:41:48,381 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:48,383 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] [2020-07-21 15:41:48,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:48,598 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:48,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:48,599 INFO L82 PathProgramCache]: Analyzing trace with hash 874075539, now seen corresponding path program 1 times [2020-07-21 15:41:48,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:48,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139582106] [2020-07-21 15:41:48,601 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:48,925 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:48,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:48,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-21 15:41:48,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:49,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:49,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139582106] [2020-07-21 15:41:49,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:49,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 15:41:49,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983452954] [2020-07-21 15:41:49,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 15:41:49,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:49,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 15:41:49,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-21 15:41:49,015 INFO L87 Difference]: Start difference. First operand 485 states and 605 transitions. Second operand 11 states. [2020-07-21 15:41:49,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:49,742 INFO L93 Difference]: Finished difference Result 1368 states and 1795 transitions. [2020-07-21 15:41:49,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 15:41:49,743 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2020-07-21 15:41:49,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:49,750 INFO L225 Difference]: With dead ends: 1368 [2020-07-21 15:41:49,751 INFO L226 Difference]: Without dead ends: 907 [2020-07-21 15:41:49,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-21 15:41:49,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-07-21 15:41:49,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 891. [2020-07-21 15:41:49,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-07-21 15:41:49,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1119 transitions. [2020-07-21 15:41:49,813 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1119 transitions. Word has length 81 [2020-07-21 15:41:49,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:49,814 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1119 transitions. [2020-07-21 15:41:49,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 15:41:49,814 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1119 transitions. [2020-07-21 15:41:49,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-21 15:41:49,819 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:49,819 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] [2020-07-21 15:41:50,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:50,035 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:50,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:50,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1332533601, now seen corresponding path program 1 times [2020-07-21 15:41:50,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:50,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375796650] [2020-07-21 15:41:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:50,275 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:50,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:50,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 15:41:50,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:50,341 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 15:41:50,341 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 15:41:50,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:50,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:50,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375796650] [2020-07-21 15:41:50,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:50,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-21 15:41:50,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600472183] [2020-07-21 15:41:50,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 15:41:50,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:50,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 15:41:50,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-21 15:41:50,396 INFO L87 Difference]: Start difference. First operand 891 states and 1119 transitions. Second operand 9 states. [2020-07-21 15:41:51,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:51,040 INFO L93 Difference]: Finished difference Result 2544 states and 3382 transitions. [2020-07-21 15:41:51,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-21 15:41:51,041 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-07-21 15:41:51,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:51,057 INFO L225 Difference]: With dead ends: 2544 [2020-07-21 15:41:51,057 INFO L226 Difference]: Without dead ends: 1677 [2020-07-21 15:41:51,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-07-21 15:41:51,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2020-07-21 15:41:51,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1597. [2020-07-21 15:41:51,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1597 states. [2020-07-21 15:41:51,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 2053 transitions. [2020-07-21 15:41:51,182 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 2053 transitions. Word has length 88 [2020-07-21 15:41:51,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:51,183 INFO L479 AbstractCegarLoop]: Abstraction has 1597 states and 2053 transitions. [2020-07-21 15:41:51,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 15:41:51,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 2053 transitions. [2020-07-21 15:41:51,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-07-21 15:41:51,191 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:51,192 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] [2020-07-21 15:41:51,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:51,407 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:51,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:51,408 INFO L82 PathProgramCache]: Analyzing trace with hash 864064716, now seen corresponding path program 1 times [2020-07-21 15:41:51,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:51,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036448240] [2020-07-21 15:41:51,409 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:51,723 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:51,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:51,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 15:41:51,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:51,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:51,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:51,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036448240] [2020-07-21 15:41:51,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:51,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 15:41:51,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945288649] [2020-07-21 15:41:51,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 15:41:51,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:51,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 15:41:51,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:41:51,766 INFO L87 Difference]: Start difference. First operand 1597 states and 2053 transitions. Second operand 5 states. [2020-07-21 15:41:52,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:52,274 INFO L93 Difference]: Finished difference Result 2817 states and 3775 transitions. [2020-07-21 15:41:52,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 15:41:52,275 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2020-07-21 15:41:52,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:52,283 INFO L225 Difference]: With dead ends: 2817 [2020-07-21 15:41:52,283 INFO L226 Difference]: Without dead ends: 1244 [2020-07-21 15:41:52,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:41:52,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2020-07-21 15:41:52,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1116. [2020-07-21 15:41:52,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-07-21 15:41:52,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1289 transitions. [2020-07-21 15:41:52,372 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1289 transitions. Word has length 99 [2020-07-21 15:41:52,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:52,373 INFO L479 AbstractCegarLoop]: Abstraction has 1116 states and 1289 transitions. [2020-07-21 15:41:52,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 15:41:52,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1289 transitions. [2020-07-21 15:41:52,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-21 15:41:52,375 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:52,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:41:52,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:52,589 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:52,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:52,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1438339703, now seen corresponding path program 1 times [2020-07-21 15:41:52,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:52,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [279454389] [2020-07-21 15:41:52,591 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:52,768 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:41:52,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:52,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 15:41:52,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:52,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:52,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:52,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [279454389] [2020-07-21 15:41:52,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:52,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 15:41:52,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30281688] [2020-07-21 15:41:52,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 15:41:52,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:52,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 15:41:52,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:41:52,802 INFO L87 Difference]: Start difference. First operand 1116 states and 1289 transitions. Second operand 5 states. [2020-07-21 15:41:52,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:52,868 INFO L93 Difference]: Finished difference Result 2220 states and 2586 transitions. [2020-07-21 15:41:52,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 15:41:52,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2020-07-21 15:41:52,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:52,881 INFO L225 Difference]: With dead ends: 2220 [2020-07-21 15:41:52,881 INFO L226 Difference]: Without dead ends: 1128 [2020-07-21 15:41:52,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:41:52,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2020-07-21 15:41:52,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1116. [2020-07-21 15:41:52,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-07-21 15:41:52,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1287 transitions. [2020-07-21 15:41:52,986 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1287 transitions. Word has length 93 [2020-07-21 15:41:52,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:52,986 INFO L479 AbstractCegarLoop]: Abstraction has 1116 states and 1287 transitions. [2020-07-21 15:41:52,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 15:41:52,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1287 transitions. [2020-07-21 15:41:52,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-21 15:41:52,989 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:52,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:41:53,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:53,204 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:53,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:53,205 INFO L82 PathProgramCache]: Analyzing trace with hash 2097871225, now seen corresponding path program 1 times [2020-07-21 15:41:53,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:53,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814124513] [2020-07-21 15:41:53,206 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:53,476 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:53,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:53,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 15:41:53,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:53,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:53,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:53,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814124513] [2020-07-21 15:41:53,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:53,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:41:53,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970678317] [2020-07-21 15:41:53,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:41:53,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:53,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:41:53,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:41:53,519 INFO L87 Difference]: Start difference. First operand 1116 states and 1287 transitions. Second operand 6 states. [2020-07-21 15:41:53,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:53,591 INFO L93 Difference]: Finished difference Result 2167 states and 2545 transitions. [2020-07-21 15:41:53,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:41:53,592 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-07-21 15:41:53,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:53,593 INFO L225 Difference]: With dead ends: 2167 [2020-07-21 15:41:53,593 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 15:41:53,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:41:53,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 15:41:53,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 15:41:53,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 15:41:53,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 15:41:53,600 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 93 [2020-07-21 15:41:53,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:53,600 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 15:41:53,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:41:53,600 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 15:41:53,600 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 15:41:53,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:53,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 15:41:56,192 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 25 [2020-07-21 15:41:56,806 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 26 [2020-07-21 15:41:57,364 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 32 [2020-07-21 15:41:57,659 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2020-07-21 15:41:57,921 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 21 [2020-07-21 15:41:58,363 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 26 [2020-07-21 15:41:58,959 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 28 [2020-07-21 15:41:59,053 INFO L268 CegarLoopResult]: For program point L610-1(lines 610 614) no Hoare annotation was computed. [2020-07-21 15:41:59,053 INFO L268 CegarLoopResult]: For program point L605(line 605) no Hoare annotation was computed. [2020-07-21 15:41:59,053 INFO L268 CegarLoopResult]: For program point L604-2(lines 604 625) no Hoare annotation was computed. [2020-07-21 15:41:59,053 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 579 634) no Hoare annotation was computed. [2020-07-21 15:41:59,053 INFO L268 CegarLoopResult]: For program point L626(lines 603 627) no Hoare annotation was computed. [2020-07-21 15:41:59,054 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 579 634) no Hoare annotation was computed. [2020-07-21 15:41:59,054 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 579 634) no Hoare annotation was computed. [2020-07-21 15:41:59,054 INFO L268 CegarLoopResult]: For program point L610(lines 610 614) no Hoare annotation was computed. [2020-07-21 15:41:59,054 INFO L268 CegarLoopResult]: For program point L667(lines 667 671) no Hoare annotation was computed. [2020-07-21 15:41:59,054 INFO L268 CegarLoopResult]: For program point L667-1(lines 667 671) no Hoare annotation was computed. [2020-07-21 15:41:59,054 INFO L268 CegarLoopResult]: For program point L662(line 662) no Hoare annotation was computed. [2020-07-21 15:41:59,055 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 635 694) no Hoare annotation was computed. [2020-07-21 15:41:59,055 INFO L268 CegarLoopResult]: For program point L661-2(lines 661 686) no Hoare annotation was computed. [2020-07-21 15:41:59,055 INFO L268 CegarLoopResult]: For program point L687(lines 660 688) no Hoare annotation was computed. [2020-07-21 15:41:59,055 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 635 694) no Hoare annotation was computed. [2020-07-21 15:41:59,055 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 635 694) no Hoare annotation was computed. [2020-07-21 15:41:59,055 INFO L268 CegarLoopResult]: For program point L680(line 680) no Hoare annotation was computed. [2020-07-21 15:41:59,055 INFO L268 CegarLoopResult]: For program point L680-1(line 680) no Hoare annotation was computed. [2020-07-21 15:41:59,055 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 70 76) the Hoare annotation is: true [2020-07-21 15:41:59,055 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 70 76) no Hoare annotation was computed. [2020-07-21 15:41:59,056 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 77 85) no Hoare annotation was computed. [2020-07-21 15:41:59,056 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 77 85) the Hoare annotation is: true [2020-07-21 15:41:59,056 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 77 85) no Hoare annotation was computed. [2020-07-21 15:41:59,056 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 965 987) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 15:41:59,056 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 965 987) no Hoare annotation was computed. [2020-07-21 15:41:59,056 INFO L264 CegarLoopResult]: At program point L977(line 977) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 15:41:59,057 INFO L264 CegarLoopResult]: At program point L977-1(line 977) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 15:41:59,057 INFO L268 CegarLoopResult]: For program point L975(lines 975 982) no Hoare annotation was computed. [2020-07-21 15:41:59,057 INFO L268 CegarLoopResult]: For program point L975-1(lines 975 982) no Hoare annotation was computed. [2020-07-21 15:41:59,057 INFO L268 CegarLoopResult]: For program point L973(line 973) no Hoare annotation was computed. [2020-07-21 15:41:59,057 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 965 987) no Hoare annotation was computed. [2020-07-21 15:41:59,057 INFO L264 CegarLoopResult]: At program point L972(line 972) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 15:41:59,057 INFO L264 CegarLoopResult]: At program point L971(line 971) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 15:41:59,057 INFO L264 CegarLoopResult]: At program point L971-1(line 971) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 15:41:59,058 INFO L268 CegarLoopResult]: For program point L929(line 929) no Hoare annotation was computed. [2020-07-21 15:41:59,058 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 924 947) no Hoare annotation was computed. [2020-07-21 15:41:59,058 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 924 947) no Hoare annotation was computed. [2020-07-21 15:41:59,058 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 924 947) no Hoare annotation was computed. [2020-07-21 15:41:59,058 INFO L268 CegarLoopResult]: For program point L942(line 942) no Hoare annotation was computed. [2020-07-21 15:41:59,058 INFO L268 CegarLoopResult]: For program point L941(line 941) no Hoare annotation was computed. [2020-07-21 15:41:59,058 INFO L268 CegarLoopResult]: For program point L940(line 940) no Hoare annotation was computed. [2020-07-21 15:41:59,058 INFO L268 CegarLoopResult]: For program point L939(line 939) no Hoare annotation was computed. [2020-07-21 15:41:59,059 INFO L268 CegarLoopResult]: For program point L938(line 938) no Hoare annotation was computed. [2020-07-21 15:41:59,059 INFO L268 CegarLoopResult]: For program point L937(line 937) no Hoare annotation was computed. [2020-07-21 15:41:59,059 INFO L268 CegarLoopResult]: For program point L936(line 936) no Hoare annotation was computed. [2020-07-21 15:41:59,059 INFO L268 CegarLoopResult]: For program point L935(line 935) no Hoare annotation was computed. [2020-07-21 15:41:59,059 INFO L268 CegarLoopResult]: For program point L934(line 934) no Hoare annotation was computed. [2020-07-21 15:41:59,059 INFO L268 CegarLoopResult]: For program point L933(line 933) no Hoare annotation was computed. [2020-07-21 15:41:59,059 INFO L268 CegarLoopResult]: For program point L932(line 932) no Hoare annotation was computed. [2020-07-21 15:41:59,059 INFO L268 CegarLoopResult]: For program point L931(line 931) no Hoare annotation was computed. [2020-07-21 15:41:59,060 INFO L268 CegarLoopResult]: For program point L930(line 930) no Hoare annotation was computed. [2020-07-21 15:41:59,060 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 305 313) no Hoare annotation was computed. [2020-07-21 15:41:59,060 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 305 313) the Hoare annotation is: true [2020-07-21 15:41:59,060 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 305 313) no Hoare annotation was computed. [2020-07-21 15:41:59,060 INFO L268 CegarLoopResult]: For program point L378(lines 378 382) no Hoare annotation was computed. [2020-07-21 15:41:59,060 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 369 387) the Hoare annotation is: true [2020-07-21 15:41:59,060 INFO L271 CegarLoopResult]: At program point L376(line 376) the Hoare annotation is: true [2020-07-21 15:41:59,061 INFO L268 CegarLoopResult]: For program point L378-2(lines 378 382) no Hoare annotation was computed. [2020-07-21 15:41:59,061 INFO L268 CegarLoopResult]: For program point L376-1(line 376) no Hoare annotation was computed. [2020-07-21 15:41:59,061 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 369 387) no Hoare annotation was computed. [2020-07-21 15:41:59,061 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 369 387) no Hoare annotation was computed. [2020-07-21 15:41:59,061 INFO L268 CegarLoopResult]: For program point L321(lines 321 329) no Hoare annotation was computed. [2020-07-21 15:41:59,061 INFO L268 CegarLoopResult]: For program point L321-2(lines 321 329) no Hoare annotation was computed. [2020-07-21 15:41:59,061 INFO L268 CegarLoopResult]: For program point L344(line 344) no Hoare annotation was computed. [2020-07-21 15:41:59,061 INFO L268 CegarLoopResult]: For program point L344-1(line 344) no Hoare annotation was computed. [2020-07-21 15:41:59,062 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 314 349) no Hoare annotation was computed. [2020-07-21 15:41:59,062 INFO L268 CegarLoopResult]: For program point L333(lines 333 341) no Hoare annotation was computed. [2020-07-21 15:41:59,062 INFO L268 CegarLoopResult]: For program point L333-2(lines 333 341) no Hoare annotation was computed. [2020-07-21 15:41:59,062 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 314 349) no Hoare annotation was computed. [2020-07-21 15:41:59,062 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 314 349) no Hoare annotation was computed. [2020-07-21 15:41:59,062 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 63 69) no Hoare annotation was computed. [2020-07-21 15:41:59,062 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 63 69) the Hoare annotation is: true [2020-07-21 15:41:59,062 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 533 578) no Hoare annotation was computed. [2020-07-21 15:41:59,062 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 533 578) no Hoare annotation was computed. [2020-07-21 15:41:59,063 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 533 578) no Hoare annotation was computed. [2020-07-21 15:41:59,063 INFO L268 CegarLoopResult]: For program point L860(lines 860 880) no Hoare annotation was computed. [2020-07-21 15:41:59,063 INFO L268 CegarLoopResult]: For program point L860-1(lines 860 880) no Hoare annotation was computed. [2020-07-21 15:41:59,063 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 846 891) no Hoare annotation was computed. [2020-07-21 15:41:59,063 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 846 891) no Hoare annotation was computed. [2020-07-21 15:41:59,063 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 846 891) no Hoare annotation was computed. [2020-07-21 15:41:59,063 INFO L268 CegarLoopResult]: For program point L866(lines 866 873) no Hoare annotation was computed. [2020-07-21 15:41:59,064 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 955 964) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 15:41:59,064 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 955 964) no Hoare annotation was computed. [2020-07-21 15:41:59,064 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 955 964) no Hoare annotation was computed. [2020-07-21 15:41:59,064 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 294 304) the Hoare annotation is: true [2020-07-21 15:41:59,064 INFO L271 CegarLoopResult]: At program point L299(line 299) the Hoare annotation is: true [2020-07-21 15:41:59,064 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 294 304) no Hoare annotation was computed. [2020-07-21 15:41:59,064 INFO L268 CegarLoopResult]: For program point L299-1(line 299) no Hoare annotation was computed. [2020-07-21 15:41:59,064 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 294 304) no Hoare annotation was computed. [2020-07-21 15:41:59,064 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 286 293) the Hoare annotation is: (or (= 0 |old(~pumpRunning~0)|) (not (<= 1 ~systemActive~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1))) [2020-07-21 15:41:59,065 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 286 293) no Hoare annotation was computed. [2020-07-21 15:41:59,065 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 286 293) no Hoare annotation was computed. [2020-07-21 15:41:59,065 INFO L268 CegarLoopResult]: For program point L473(lines 473 479) no Hoare annotation was computed. [2020-07-21 15:41:59,065 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 469 482) no Hoare annotation was computed. [2020-07-21 15:41:59,065 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 469 482) the Hoare annotation is: true [2020-07-21 15:41:59,065 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 469 482) no Hoare annotation was computed. [2020-07-21 15:41:59,065 INFO L268 CegarLoopResult]: For program point L257(lines 257 274) no Hoare annotation was computed. [2020-07-21 15:41:59,065 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 253 277) no Hoare annotation was computed. [2020-07-21 15:41:59,066 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 253 277) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 15:41:59,066 INFO L264 CegarLoopResult]: At program point L272(line 272) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~systemActive~0))) (.cse0 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (not (<= ~waterLevel~0 1))) (or .cse1 (not (<= ~waterLevel~0 2)) (not .cse0) (= 0 ~pumpRunning~0)))) [2020-07-21 15:41:59,066 INFO L268 CegarLoopResult]: For program point L272-1(lines 253 277) no Hoare annotation was computed. [2020-07-21 15:41:59,066 INFO L264 CegarLoopResult]: At program point L267(line 267) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 1)))) (and (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 (and (= ~methaneLevelCritical~0 processEnvironment_~tmp~3) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse1) (or .cse0 (= 0 ~methaneLevelCritical~0) .cse1))) [2020-07-21 15:41:59,066 INFO L264 CegarLoopResult]: At program point L263(line 263) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 (not (<= ~waterLevel~0 1)) (and (= ~methaneLevelCritical~0 processEnvironment_~tmp~3) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~methaneLevelCritical~0)))))) [2020-07-21 15:41:59,067 INFO L268 CegarLoopResult]: For program point L261(lines 261 269) no Hoare annotation was computed. [2020-07-21 15:41:59,067 INFO L264 CegarLoopResult]: At program point L259(line 259) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1))))) [2020-07-21 15:41:59,067 INFO L268 CegarLoopResult]: For program point L259-1(line 259) no Hoare annotation was computed. [2020-07-21 15:41:59,067 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 193 199) no Hoare annotation was computed. [2020-07-21 15:41:59,067 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 193 199) the Hoare annotation is: true [2020-07-21 15:41:59,067 INFO L264 CegarLoopResult]: At program point testENTRY(lines 91 154) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-21 15:41:59,067 INFO L268 CegarLoopResult]: For program point testFINAL(lines 91 154) no Hoare annotation was computed. [2020-07-21 15:41:59,067 INFO L264 CegarLoopResult]: At program point L147(lines 100 148) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 ~systemActive~0))) [2020-07-21 15:41:59,068 INFO L268 CegarLoopResult]: For program point L137(lines 137 141) no Hoare annotation was computed. [2020-07-21 15:41:59,068 INFO L264 CegarLoopResult]: At program point L137-2(lines 131 142) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 2) (<= test_~splverifierCounter~0 0))) [2020-07-21 15:41:59,068 INFO L268 CegarLoopResult]: For program point L102(lines 101 146) no Hoare annotation was computed. [2020-07-21 15:41:59,068 INFO L268 CegarLoopResult]: For program point L131(lines 131 142) no Hoare annotation was computed. [2020-07-21 15:41:59,068 INFO L264 CegarLoopResult]: At program point L123(line 123) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 2) (<= test_~splverifierCounter~0 0))) [2020-07-21 15:41:59,068 INFO L268 CegarLoopResult]: For program point L121(lines 121 127) no Hoare annotation was computed. [2020-07-21 15:41:59,068 INFO L268 CegarLoopResult]: For program point L121-1(lines 121 127) no Hoare annotation was computed. [2020-07-21 15:41:59,069 INFO L264 CegarLoopResult]: At program point L113(line 113) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (<= ~waterLevel~0 1) .cse0) (and (<= ~waterLevel~0 2) (not (= 0 ~pumpRunning~0)) .cse0) (not (= 0 |old(~pumpRunning~0)|)))) [2020-07-21 15:41:59,069 INFO L264 CegarLoopResult]: At program point L144(lines 101 146) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (<= ~waterLevel~0 1) .cse0) (and (<= ~waterLevel~0 2) (not (= 0 ~pumpRunning~0)) .cse0) (not (= 0 |old(~pumpRunning~0)|)))) [2020-07-21 15:41:59,069 INFO L268 CegarLoopResult]: For program point L111(lines 111 117) no Hoare annotation was computed. [2020-07-21 15:41:59,069 INFO L268 CegarLoopResult]: For program point L111-1(lines 111 117) no Hoare annotation was computed. [2020-07-21 15:41:59,069 INFO L268 CegarLoopResult]: For program point L103(lines 103 107) no Hoare annotation was computed. [2020-07-21 15:41:59,069 INFO L268 CegarLoopResult]: For program point testEXIT(lines 91 154) no Hoare annotation was computed. [2020-07-21 15:41:59,069 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 800 845) no Hoare annotation was computed. [2020-07-21 15:41:59,070 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 800 845) no Hoare annotation was computed. [2020-07-21 15:41:59,070 INFO L268 CegarLoopResult]: For program point L820(lines 820 827) no Hoare annotation was computed. [2020-07-21 15:41:59,070 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 800 845) no Hoare annotation was computed. [2020-07-21 15:41:59,070 INFO L268 CegarLoopResult]: For program point L814(lines 814 834) no Hoare annotation was computed. [2020-07-21 15:41:59,070 INFO L268 CegarLoopResult]: For program point L814-1(lines 814 834) no Hoare annotation was computed. [2020-07-21 15:41:59,070 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 483 491) no Hoare annotation was computed. [2020-07-21 15:41:59,070 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 483 491) the Hoare annotation is: true [2020-07-21 15:41:59,070 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 483 491) no Hoare annotation was computed. [2020-07-21 15:41:59,070 INFO L268 CegarLoopResult]: For program point L445(lines 445 453) no Hoare annotation was computed. [2020-07-21 15:41:59,071 INFO L268 CegarLoopResult]: For program point L445-2(lines 445 453) no Hoare annotation was computed. [2020-07-21 15:41:59,071 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 437 459) no Hoare annotation was computed. [2020-07-21 15:41:59,071 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 437 459) no Hoare annotation was computed. [2020-07-21 15:41:59,071 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 437 459) no Hoare annotation was computed. [2020-07-21 15:41:59,071 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 53 62) no Hoare annotation was computed. [2020-07-21 15:41:59,071 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 53 62) no Hoare annotation was computed. [2020-07-21 15:41:59,071 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 53 62) no Hoare annotation was computed. [2020-07-21 15:41:59,071 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 697 799) no Hoare annotation was computed. [2020-07-21 15:41:59,071 INFO L268 CegarLoopResult]: For program point L762(line 762) no Hoare annotation was computed. [2020-07-21 15:41:59,072 INFO L268 CegarLoopResult]: For program point L762-1(line 762) no Hoare annotation was computed. [2020-07-21 15:41:59,072 INFO L268 CegarLoopResult]: For program point L721(lines 721 725) no Hoare annotation was computed. [2020-07-21 15:41:59,072 INFO L268 CegarLoopResult]: For program point L785(lines 785 796) no Hoare annotation was computed. [2020-07-21 15:41:59,072 INFO L268 CegarLoopResult]: For program point L748(lines 748 752) no Hoare annotation was computed. [2020-07-21 15:41:59,072 INFO L268 CegarLoopResult]: For program point L746-2(lines 746 766) no Hoare annotation was computed. [2020-07-21 15:41:59,072 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 697 799) no Hoare annotation was computed. [2020-07-21 15:41:59,072 INFO L268 CegarLoopResult]: For program point L767(lines 745 768) no Hoare annotation was computed. [2020-07-21 15:41:59,072 INFO L268 CegarLoopResult]: For program point L726(lines 726 742) no Hoare annotation was computed. [2020-07-21 15:41:59,073 INFO L268 CegarLoopResult]: For program point L786(lines 786 793) no Hoare annotation was computed. [2020-07-21 15:41:59,073 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 697 799) no Hoare annotation was computed. [2020-07-21 15:41:59,073 INFO L268 CegarLoopResult]: For program point L747(lines 746 766) no Hoare annotation was computed. [2020-07-21 15:41:59,073 INFO L268 CegarLoopResult]: For program point L778(line 778) no Hoare annotation was computed. [2020-07-21 15:41:59,073 INFO L268 CegarLoopResult]: For program point L778-1(line 778) no Hoare annotation was computed. [2020-07-21 15:41:59,073 INFO L268 CegarLoopResult]: For program point L743(lines 743 784) no Hoare annotation was computed. [2020-07-21 15:41:59,073 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 15:41:59,073 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) [2020-07-21 15:41:59,074 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 15:41:59,074 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 278 285) no Hoare annotation was computed. [2020-07-21 15:41:59,074 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 278 285) no Hoare annotation was computed. [2020-07-21 15:41:59,074 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 278 285) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 15:41:59,074 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 350 368) no Hoare annotation was computed. [2020-07-21 15:41:59,074 INFO L268 CegarLoopResult]: For program point L359(lines 359 363) no Hoare annotation was computed. [2020-07-21 15:41:59,074 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 350 368) the Hoare annotation is: true [2020-07-21 15:41:59,074 INFO L271 CegarLoopResult]: At program point L357(line 357) the Hoare annotation is: true [2020-07-21 15:41:59,075 INFO L268 CegarLoopResult]: For program point L359-2(lines 359 363) no Hoare annotation was computed. [2020-07-21 15:41:59,075 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 350 368) no Hoare annotation was computed. [2020-07-21 15:41:59,075 INFO L268 CegarLoopResult]: For program point L357-1(line 357) no Hoare annotation was computed. [2020-07-21 15:41:59,075 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 460 468) the Hoare annotation is: true [2020-07-21 15:41:59,075 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 460 468) no Hoare annotation was computed. [2020-07-21 15:41:59,075 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 460 468) no Hoare annotation was computed. [2020-07-21 15:41:59,075 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 416 427) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= |old(~methaneLevelCritical~0)| 0) (not (= 0 ~methaneLevelCritical~0))) [2020-07-21 15:41:59,075 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 416 427) no Hoare annotation was computed. [2020-07-21 15:41:59,076 INFO L268 CegarLoopResult]: For program point L420-1(lines 416 427) no Hoare annotation was computed. [2020-07-21 15:41:59,076 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 15:41:59,076 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 15:41:59,076 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 15:41:59,076 INFO L264 CegarLoopResult]: At program point L182(line 182) the Hoare annotation is: (let ((.cse1 (= 0 |old(~pumpRunning~0)|)) (.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not .cse1) .cse2 (and .cse3 (= 0 ~pumpRunning~0))) (or .cse1 .cse0 (and .cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~waterLevel~0 1)) .cse2) (or .cse0 (not (= 0 |old(~waterLevel~0)|)) (= 0 ~waterLevel~0)))) [2020-07-21 15:41:59,076 INFO L264 CegarLoopResult]: At program point L180(lines 180 186) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (= 0 ~pumpRunning~0)) (.cse4 (<= ~waterLevel~0 1)) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4)) (or .cse0 .cse1 (= 0 ~methaneLevelCritical~0) .cse2 .cse3) (or .cse1 (not (= 0 |old(~waterLevel~0)|)) (= 0 ~waterLevel~0)) (let ((.cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse1 (and .cse5 (not .cse2)) (and .cse5 .cse4) .cse3)))) [2020-07-21 15:41:59,077 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 169 192) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (= 0 |old(~waterLevel~0)|)) (= 0 ~waterLevel~0)) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~waterLevel~0 2)) (not (<= |old(~waterLevel~0)| 2))))) [2020-07-21 15:41:59,077 INFO L264 CegarLoopResult]: At program point L175(line 175) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~systemActive~0))) (.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 (not (= 0 |old(~waterLevel~0)|)) (= 0 ~waterLevel~0)) (or .cse0 .cse1 .cse2 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or .cse1 (not .cse0) .cse2))) [2020-07-21 15:41:59,077 INFO L268 CegarLoopResult]: For program point L173(lines 172 191) no Hoare annotation was computed. [2020-07-21 15:41:59,077 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 169 192) no Hoare annotation was computed. [2020-07-21 15:41:59,077 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 169 192) no Hoare annotation was computed. [2020-07-21 15:41:59,077 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 894 923) no Hoare annotation was computed. [2020-07-21 15:41:59,077 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 894 923) the Hoare annotation is: true [2020-07-21 15:41:59,077 INFO L271 CegarLoopResult]: At program point L919(lines 894 923) the Hoare annotation is: true [2020-07-21 15:41:59,078 INFO L268 CegarLoopResult]: For program point L915(line 915) no Hoare annotation was computed. [2020-07-21 15:41:59,078 INFO L268 CegarLoopResult]: For program point L908(lines 908 912) no Hoare annotation was computed. [2020-07-21 15:41:59,078 INFO L271 CegarLoopResult]: At program point L908-1(lines 908 912) the Hoare annotation is: true [2020-07-21 15:41:59,078 INFO L268 CegarLoopResult]: For program point L905(line 905) no Hoare annotation was computed. [2020-07-21 15:41:59,078 INFO L271 CegarLoopResult]: At program point L904-2(lines 904 918) the Hoare annotation is: true [2020-07-21 15:41:59,078 INFO L271 CegarLoopResult]: At program point L900(line 900) the Hoare annotation is: true [2020-07-21 15:41:59,078 INFO L268 CegarLoopResult]: For program point L900-1(line 900) no Hoare annotation was computed. [2020-07-21 15:41:59,078 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 428 436) the Hoare annotation is: true [2020-07-21 15:41:59,079 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 428 436) no Hoare annotation was computed. [2020-07-21 15:41:59,079 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 428 436) no Hoare annotation was computed. [2020-07-21 15:41:59,079 INFO L268 CegarLoopResult]: For program point L512(lines 512 518) no Hoare annotation was computed. [2020-07-21 15:41:59,079 INFO L264 CegarLoopResult]: At program point L510(line 510) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= ~waterLevel~0 1))) (or .cse0 (= 0 ~methaneLevelCritical~0) (not (<= ~waterLevel~0 2)) (= 0 ~pumpRunning~0)))) [2020-07-21 15:41:59,079 INFO L268 CegarLoopResult]: For program point L510-1(line 510) no Hoare annotation was computed. [2020-07-21 15:41:59,079 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification3_spec__1EXIT(lines 493 525) no Hoare annotation was computed. [2020-07-21 15:41:59,079 INFO L268 CegarLoopResult]: For program point L508(lines 508 521) no Hoare annotation was computed. [2020-07-21 15:41:59,079 INFO L268 CegarLoopResult]: For program point L508-1(lines 493 525) no Hoare annotation was computed. [2020-07-21 15:41:59,080 INFO L264 CegarLoopResult]: At program point L506(line 506) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (= 0 ~methaneLevelCritical~0))) (and (or .cse0 .cse1 (not (<= ~waterLevel~0 1))) (or .cse0 .cse1 (not (<= ~waterLevel~0 2)) (= 0 ~pumpRunning~0)))) [2020-07-21 15:41:59,080 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification3_spec__1ENTRY(lines 493 525) the Hoare annotation is: true [2020-07-21 15:41:59,080 INFO L268 CegarLoopResult]: For program point L506-1(line 506) no Hoare annotation was computed. [2020-07-21 15:41:59,080 INFO L268 CegarLoopResult]: For program point L502(lines 502 522) no Hoare annotation was computed. [2020-07-21 15:41:59,080 INFO L271 CegarLoopResult]: At program point L500(line 500) the Hoare annotation is: true [2020-07-21 15:41:59,080 INFO L268 CegarLoopResult]: For program point L500-1(line 500) no Hoare annotation was computed. [2020-07-21 15:41:59,080 INFO L264 CegarLoopResult]: At program point L516(line 516) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (= 0 ~pumpRunning~0)))) [2020-07-21 15:41:59,080 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 392 403) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (= 0 ~pumpRunning~0)) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= 0 |old(~waterLevel~0)|)) (= 0 ~waterLevel~0)))) [2020-07-21 15:41:59,081 INFO L268 CegarLoopResult]: For program point L396-1(lines 392 403) no Hoare annotation was computed. [2020-07-21 15:41:59,081 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 392 403) no Hoare annotation was computed. [2020-07-21 15:41:59,081 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 948 954) no Hoare annotation was computed. [2020-07-21 15:41:59,081 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 948 954) the Hoare annotation is: true [2020-07-21 15:41:59,081 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 15:41:59,081 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-21 15:41:59,081 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 15:41:59,081 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 15:41:59,082 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 201 225) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 15:41:59,082 INFO L264 CegarLoopResult]: At program point L220(line 220) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1))))) [2020-07-21 15:41:59,082 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 201 225) no Hoare annotation was computed. [2020-07-21 15:41:59,082 INFO L268 CegarLoopResult]: For program point L220-1(lines 201 225) no Hoare annotation was computed. [2020-07-21 15:41:59,082 INFO L264 CegarLoopResult]: At program point L215(line 215) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~systemActive~0))) (.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse2 (<= ~waterLevel~0 1))) (and (or .cse0 .cse1 (not .cse2)) (or .cse1 (not (<= ~waterLevel~0 2)) (not .cse0) (and (= 0 ~pumpRunning~0) .cse2)))) [2020-07-21 15:41:59,082 INFO L264 CegarLoopResult]: At program point L211(line 211) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (<= ~waterLevel~0 1))) (and (let ((.cse1 (= 0 ~pumpRunning~0))) (or .cse0 (not (<= ~waterLevel~0 2)) (and (<= 1 processEnvironment__wrappee__highWaterSensor_~tmp~1) .cse1) (not .cse2) (and .cse1 .cse3))) (or .cse2 .cse0 (not .cse3)))) [2020-07-21 15:41:59,082 INFO L268 CegarLoopResult]: For program point L209(lines 209 217) no Hoare annotation was computed. [2020-07-21 15:41:59,082 INFO L264 CegarLoopResult]: At program point L207(line 207) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~systemActive~0))) (.cse0 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (not (<= ~waterLevel~0 1))) (or .cse1 (not (<= ~waterLevel~0 2)) (not .cse0) (= 0 ~pumpRunning~0)))) [2020-07-21 15:41:59,083 INFO L268 CegarLoopResult]: For program point L207-1(line 207) no Hoare annotation was computed. [2020-07-21 15:41:59,083 INFO L268 CegarLoopResult]: For program point L205(lines 205 222) no Hoare annotation was computed. [2020-07-21 15:41:59,083 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 404 415) no Hoare annotation was computed. [2020-07-21 15:41:59,083 INFO L268 CegarLoopResult]: For program point L408-1(lines 404 415) no Hoare annotation was computed. [2020-07-21 15:41:59,083 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 404 415) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 (= 0 ~pumpRunning~0) (not (<= |old(~waterLevel~0)| 2))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1))) [2020-07-21 15:41:59,083 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2020-07-21 15:41:59,083 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2020-07-21 15:41:59,083 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2020-07-21 15:41:59,084 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2020-07-21 15:41:59,084 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 227 251) no Hoare annotation was computed. [2020-07-21 15:41:59,084 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 227 251) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 15:41:59,084 INFO L264 CegarLoopResult]: At program point L246(line 246) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~systemActive~0))) (.cse0 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (not (<= ~waterLevel~0 1))) (or .cse1 (not (<= ~waterLevel~0 2)) (not .cse0) (= 0 ~pumpRunning~0)))) [2020-07-21 15:41:59,084 INFO L268 CegarLoopResult]: For program point L246-1(lines 227 251) no Hoare annotation was computed. [2020-07-21 15:41:59,084 INFO L264 CegarLoopResult]: At program point L241(line 241) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1))))) [2020-07-21 15:41:59,084 INFO L264 CegarLoopResult]: At program point L237(line 237) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1))))) [2020-07-21 15:41:59,084 INFO L268 CegarLoopResult]: For program point L235(lines 235 243) no Hoare annotation was computed. [2020-07-21 15:41:59,085 INFO L264 CegarLoopResult]: At program point L233(line 233) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1))))) [2020-07-21 15:41:59,085 INFO L268 CegarLoopResult]: For program point L233-1(line 233) no Hoare annotation was computed. [2020-07-21 15:41:59,085 INFO L268 CegarLoopResult]: For program point L231(lines 231 248) no Hoare annotation was computed. [2020-07-21 15:41:59,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:41:59 BoogieIcfgContainer [2020-07-21 15:41:59,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 15:41:59,109 INFO L168 Benchmark]: Toolchain (without parser) took 18536.83 ms. Allocated memory was 138.9 MB in the beginning and 456.7 MB in the end (delta: 317.7 MB). Free memory was 102.7 MB in the beginning and 262.0 MB in the end (delta: -159.3 MB). Peak memory consumption was 283.8 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:59,110 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 15:41:59,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.05 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 170.6 MB in the end (delta: -68.3 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:59,121 INFO L168 Benchmark]: Boogie Preprocessor took 84.18 ms. Allocated memory is still 202.9 MB. Free memory was 170.6 MB in the beginning and 165.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:59,122 INFO L168 Benchmark]: RCFGBuilder took 1085.44 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 165.9 MB in the beginning and 194.1 MB in the end (delta: -28.3 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:59,123 INFO L168 Benchmark]: TraceAbstraction took 16639.39 ms. Allocated memory was 236.5 MB in the beginning and 456.7 MB in the end (delta: 220.2 MB). Free memory was 194.1 MB in the beginning and 262.0 MB in the end (delta: -67.8 MB). Peak memory consumption was 277.7 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:59,133 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 722.05 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 170.6 MB in the end (delta: -68.3 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.18 ms. Allocated memory is still 202.9 MB. Free memory was 170.6 MB in the beginning and 165.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1085.44 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 165.9 MB in the beginning and 194.1 MB in the end (delta: -28.3 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16639.39 ms. Allocated memory was 236.5 MB in the beginning and 456.7 MB in the end (delta: 220.2 MB). Free memory was 194.1 MB in the beginning and 262.0 MB in the end (delta: -67.8 MB). Peak memory consumption was 277.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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: 101]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) <= 1) || !(1 <= systemActive)) || (waterLevel <= 1 && splverifierCounter <= 0)) || ((waterLevel <= 2 && !(0 == pumpRunning)) && splverifierCounter <= 0)) || !(0 == \old(pumpRunning)) - InvariantResult [Line: 894]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: (!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(1 <= systemActive) - InvariantResult [Line: 904]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 248 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.2s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2116 SDtfs, 1432 SDslu, 6388 SDs, 0 SdLazy, 2188 SolverSat, 608 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 888 GetRequests, 817 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1597occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 440 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 67 LocationsWithAnnotation, 3344 PreInvPairs, 3473 NumberOfFragments, 1180 HoareAnnotationTreeSize, 3344 FomulaSimplifications, 5214 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 67 FomulaSimplificationsInter, 11738 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 869 NumberOfCodeBlocks, 788 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 858 ConstructedInterpolants, 0 QuantifiedInterpolants, 125886 SizeOfPredicates, 33 NumberOfNonLiveVariables, 7643 ConjunctsInSsa, 115 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 9/9 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...