/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 10:43:10,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 10:43:10,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 10:43:10,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 10:43:10,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 10:43:10,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 10:43:10,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 10:43:10,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 10:43:10,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 10:43:10,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 10:43:10,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 10:43:10,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 10:43:10,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 10:43:10,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 10:43:10,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 10:43:10,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 10:43:10,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 10:43:10,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 10:43:10,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 10:43:10,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 10:43:10,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 10:43:10,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 10:43:10,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 10:43:10,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 10:43:10,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 10:43:10,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 10:43:10,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 10:43:10,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 10:43:10,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 10:43:10,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 10:43:10,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 10:43:10,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 10:43:10,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 10:43:10,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 10:43:10,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 10:43:10,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 10:43:10,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 10:43:10,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 10:43:10,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 10:43:10,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 10:43:10,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 10:43:10,913 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 10:43:10,943 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 10:43:10,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 10:43:10,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 10:43:10,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 10:43:10,946 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 10:43:10,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 10:43:10,946 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 10:43:10,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 10:43:10,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 10:43:10,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 10:43:10,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 10:43:10,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 10:43:10,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 10:43:10,948 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 10:43:10,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 10:43:10,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 10:43:10,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 10:43:10,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 10:43:10,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 10:43:10,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 10:43:10,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 10:43:10,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 10:43:10,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 10:43:10,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 10:43:10,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 10:43:10,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 10:43:10,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:10,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 10:43:10,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 10:43:10,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 10:43:11,251 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 10:43:11,271 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 10:43:11,277 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 10:43:11,279 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 10:43:11,281 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 10:43:11,282 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2020-07-20 10:43:11,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beef1ebea/01d748b790614ba7836b2e32a1e540ba/FLAG7218de0e0 [2020-07-20 10:43:11,894 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 10:43:11,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2020-07-20 10:43:11,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beef1ebea/01d748b790614ba7836b2e32a1e540ba/FLAG7218de0e0 [2020-07-20 10:43:12,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beef1ebea/01d748b790614ba7836b2e32a1e540ba [2020-07-20 10:43:12,292 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 10:43:12,295 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 10:43:12,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 10:43:12,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 10:43:12,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 10:43:12,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:43:12" (1/1) ... [2020-07-20 10:43:12,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c8121f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:43:12, skipping insertion in model container [2020-07-20 10:43:12,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:43:12" (1/1) ... [2020-07-20 10:43:12,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 10:43:12,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 10:43:12,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:43:12,874 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 10:43:12,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:43:12,989 INFO L208 MainTranslator]: Completed translation [2020-07-20 10:43:12,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:43:12 WrapperNode [2020-07-20 10:43:12,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 10:43:12,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 10:43:12,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 10:43:12,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 10:43:13,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:43:12" (1/1) ... [2020-07-20 10:43:13,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:43:12" (1/1) ... [2020-07-20 10:43:13,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:43:12" (1/1) ... [2020-07-20 10:43:13,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:43:12" (1/1) ... [2020-07-20 10:43:13,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:43:12" (1/1) ... [2020-07-20 10:43:13,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:43:12" (1/1) ... [2020-07-20 10:43:13,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:43:12" (1/1) ... [2020-07-20 10:43:13,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 10:43:13,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 10:43:13,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 10:43:13,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 10:43:13,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:43:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 10:43:13,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 10:43:13,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 10:43:13,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 10:43:13,205 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 10:43:13,206 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 10:43:13,206 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 10:43:13,206 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-20 10:43:13,206 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 10:43:13,207 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 10:43:13,207 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 10:43:13,208 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 10:43:13,208 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 10:43:13,209 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 10:43:13,209 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 10:43:13,209 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-20 10:43:13,210 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 10:43:13,210 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 10:43:13,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 10:43:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 10:43:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 10:43:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 10:43:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 10:43:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 10:43:13,212 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 10:43:13,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-20 10:43:13,213 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 10:43:13,213 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 10:43:13,213 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 10:43:13,213 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 10:43:13,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 10:43:13,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 10:43:13,214 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 10:43:13,214 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 10:43:13,214 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 10:43:13,215 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 10:43:13,215 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 10:43:13,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 10:43:13,215 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 10:43:13,215 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-20 10:43:13,215 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 10:43:13,216 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 10:43:13,216 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 10:43:13,216 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 10:43:13,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 10:43:13,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 10:43:13,216 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 10:43:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 10:43:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 10:43:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 10:43:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 10:43:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-20 10:43:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 10:43:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 10:43:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 10:43:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 10:43:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 10:43:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 10:43:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 10:43:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-20 10:43:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 10:43:13,219 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 10:43:13,219 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 10:43:13,219 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 10:43:13,220 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-20 10:43:13,220 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-20 10:43:13,220 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 10:43:13,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 10:43:13,220 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 10:43:13,220 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 10:43:13,220 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 10:43:13,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 10:43:13,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 10:43:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 10:43:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 10:43:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 10:43:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 10:43:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 10:43:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 10:43:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 10:43:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 10:43:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 10:43:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 10:43:13,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 10:43:13,224 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 10:43:13,225 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 10:43:13,225 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 10:43:13,225 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 10:43:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 10:43:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 10:43:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 10:43:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 10:43:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 10:43:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 10:43:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 10:43:13,227 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 10:43:13,227 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 10:43:13,227 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 10:43:13,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 10:43:13,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 10:43:13,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 10:43:14,359 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 10:43:14,359 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 10:43:14,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:43:14 BoogieIcfgContainer [2020-07-20 10:43:14,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 10:43:14,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 10:43:14,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 10:43:14,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 10:43:14,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:43:12" (1/3) ... [2020-07-20 10:43:14,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f303a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:43:14, skipping insertion in model container [2020-07-20 10:43:14,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:43:12" (2/3) ... [2020-07-20 10:43:14,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f303a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:43:14, skipping insertion in model container [2020-07-20 10:43:14,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:43:14" (3/3) ... [2020-07-20 10:43:14,374 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2020-07-20 10:43:14,385 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 10:43:14,394 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 10:43:14,409 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 10:43:14,436 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 10:43:14,436 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 10:43:14,437 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 10:43:14,437 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 10:43:14,437 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 10:43:14,437 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 10:43:14,437 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 10:43:14,437 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 10:43:14,462 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-07-20 10:43:14,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 10:43:14,473 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:43:14,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:43:14,474 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:43:14,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:43:14,480 INFO L82 PathProgramCache]: Analyzing trace with hash -559348317, now seen corresponding path program 1 times [2020-07-20 10:43:14,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:43:14,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240672480] [2020-07-20 10:43:14,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:43:14,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 10:43:14,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:43:14,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:43:14,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:43:14,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240672480] [2020-07-20 10:43:14,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:43:14,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 10:43:14,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968907964] [2020-07-20 10:43:14,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 10:43:14,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:43:14,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 10:43:14,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:43:14,834 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 2 states. [2020-07-20 10:43:14,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:43:14,886 INFO L93 Difference]: Finished difference Result 312 states and 385 transitions. [2020-07-20 10:43:14,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 10:43:14,888 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-20 10:43:14,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:43:14,903 INFO L225 Difference]: With dead ends: 312 [2020-07-20 10:43:14,903 INFO L226 Difference]: Without dead ends: 156 [2020-07-20 10:43:14,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:43:14,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-07-20 10:43:14,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2020-07-20 10:43:14,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-07-20 10:43:14,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 184 transitions. [2020-07-20 10:43:14,970 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 184 transitions. Word has length 46 [2020-07-20 10:43:14,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:43:14,971 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 184 transitions. [2020-07-20 10:43:14,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 10:43:14,971 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 184 transitions. [2020-07-20 10:43:14,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 10:43:14,975 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:43:14,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:43:15,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:15,190 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:43:15,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:43:15,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1620740414, now seen corresponding path program 1 times [2020-07-20 10:43:15,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:43:15,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606756932] [2020-07-20 10:43:15,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:43:15,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 10:43:15,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:43:15,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:43:15,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:43:15,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606756932] [2020-07-20 10:43:15,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:43:15,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:43:15,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485077345] [2020-07-20 10:43:15,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:43:15,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:43:15,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:43:15,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:43:15,496 INFO L87 Difference]: Start difference. First operand 156 states and 184 transitions. Second operand 3 states. [2020-07-20 10:43:15,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:43:15,544 INFO L93 Difference]: Finished difference Result 251 states and 295 transitions. [2020-07-20 10:43:15,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:43:15,547 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-20 10:43:15,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:43:15,553 INFO L225 Difference]: With dead ends: 251 [2020-07-20 10:43:15,554 INFO L226 Difference]: Without dead ends: 147 [2020-07-20 10:43:15,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:43:15,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-07-20 10:43:15,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2020-07-20 10:43:15,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-07-20 10:43:15,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 172 transitions. [2020-07-20 10:43:15,586 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 172 transitions. Word has length 47 [2020-07-20 10:43:15,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:43:15,587 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 172 transitions. [2020-07-20 10:43:15,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:43:15,587 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 172 transitions. [2020-07-20 10:43:15,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 10:43:15,593 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:43:15,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:43:15,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:15,813 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:43:15,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:43:15,814 INFO L82 PathProgramCache]: Analyzing trace with hash -396868600, now seen corresponding path program 1 times [2020-07-20 10:43:15,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:43:15,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879397960] [2020-07-20 10:43:15,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:43:16,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 10:43:16,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:43:16,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:43:16,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:43:16,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879397960] [2020-07-20 10:43:16,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:43:16,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:43:16,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616929907] [2020-07-20 10:43:16,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:43:16,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:43:16,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:43:16,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:43:16,072 INFO L87 Difference]: Start difference. First operand 147 states and 172 transitions. Second operand 3 states. [2020-07-20 10:43:16,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:43:16,131 INFO L93 Difference]: Finished difference Result 389 states and 467 transitions. [2020-07-20 10:43:16,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:43:16,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 10:43:16,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:43:16,135 INFO L225 Difference]: With dead ends: 389 [2020-07-20 10:43:16,139 INFO L226 Difference]: Without dead ends: 266 [2020-07-20 10:43:16,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:43:16,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-07-20 10:43:16,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 260. [2020-07-20 10:43:16,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-07-20 10:43:16,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 311 transitions. [2020-07-20 10:43:16,197 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 311 transitions. Word has length 52 [2020-07-20 10:43:16,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:43:16,197 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 311 transitions. [2020-07-20 10:43:16,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:43:16,198 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 311 transitions. [2020-07-20 10:43:16,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 10:43:16,203 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:43:16,203 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:43:16,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:16,419 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:43:16,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:43:16,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1317156286, now seen corresponding path program 1 times [2020-07-20 10:43:16,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:43:16,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320171387] [2020-07-20 10:43:16,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:43:16,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 10:43:16,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:43:16,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:43:16,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:43:16,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320171387] [2020-07-20 10:43:16,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:43:16,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 10:43:16,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710688533] [2020-07-20 10:43:16,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:43:16,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:43:16,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:43:16,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:43:16,668 INFO L87 Difference]: Start difference. First operand 260 states and 311 transitions. Second operand 6 states. [2020-07-20 10:43:16,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:43:16,970 INFO L93 Difference]: Finished difference Result 713 states and 895 transitions. [2020-07-20 10:43:16,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 10:43:16,971 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-07-20 10:43:16,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:43:16,978 INFO L225 Difference]: With dead ends: 713 [2020-07-20 10:43:16,979 INFO L226 Difference]: Without dead ends: 477 [2020-07-20 10:43:16,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 10:43:16,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2020-07-20 10:43:17,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 477. [2020-07-20 10:43:17,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-07-20 10:43:17,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 596 transitions. [2020-07-20 10:43:17,035 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 596 transitions. Word has length 57 [2020-07-20 10:43:17,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:43:17,036 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 596 transitions. [2020-07-20 10:43:17,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:43:17,037 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 596 transitions. [2020-07-20 10:43:17,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-20 10:43:17,041 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:43:17,042 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] [2020-07-20 10:43:17,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:17,249 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:43:17,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:43:17,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1811637144, now seen corresponding path program 1 times [2020-07-20 10:43:17,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:43:17,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450848227] [2020-07-20 10:43:17,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:43:17,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 10:43:17,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:43:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:43:17,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:43:17,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450848227] [2020-07-20 10:43:17,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:43:17,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 10:43:17,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236659347] [2020-07-20 10:43:17,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:43:17,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:43:17,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:43:17,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:43:17,500 INFO L87 Difference]: Start difference. First operand 477 states and 596 transitions. Second operand 6 states. [2020-07-20 10:43:17,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:43:17,816 INFO L93 Difference]: Finished difference Result 1076 states and 1425 transitions. [2020-07-20 10:43:17,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 10:43:17,820 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-07-20 10:43:17,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:43:17,829 INFO L225 Difference]: With dead ends: 1076 [2020-07-20 10:43:17,829 INFO L226 Difference]: Without dead ends: 623 [2020-07-20 10:43:17,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 10:43:17,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-07-20 10:43:17,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 605. [2020-07-20 10:43:17,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-07-20 10:43:17,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 767 transitions. [2020-07-20 10:43:17,876 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 767 transitions. Word has length 61 [2020-07-20 10:43:17,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:43:17,876 INFO L479 AbstractCegarLoop]: Abstraction has 605 states and 767 transitions. [2020-07-20 10:43:17,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:43:17,877 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 767 transitions. [2020-07-20 10:43:17,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-20 10:43:17,879 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:43:17,879 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:43:18,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:18,094 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:43:18,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:43:18,094 INFO L82 PathProgramCache]: Analyzing trace with hash 2053206357, now seen corresponding path program 1 times [2020-07-20 10:43:18,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:43:18,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363819157] [2020-07-20 10:43:18,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:43:18,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 10:43:18,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:43:18,277 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 10:43:18,278 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:43:18,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363819157] [2020-07-20 10:43:18,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:43:18,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:43:18,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14325917] [2020-07-20 10:43:18,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:43:18,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:43:18,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:43:18,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:43:18,280 INFO L87 Difference]: Start difference. First operand 605 states and 767 transitions. Second operand 3 states. [2020-07-20 10:43:18,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:43:18,371 INFO L93 Difference]: Finished difference Result 993 states and 1261 transitions. [2020-07-20 10:43:18,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:43:18,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-07-20 10:43:18,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:43:18,375 INFO L225 Difference]: With dead ends: 993 [2020-07-20 10:43:18,376 INFO L226 Difference]: Without dead ends: 412 [2020-07-20 10:43:18,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:43:18,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-07-20 10:43:18,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 402. [2020-07-20 10:43:18,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-07-20 10:43:18,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 496 transitions. [2020-07-20 10:43:18,401 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 496 transitions. Word has length 118 [2020-07-20 10:43:18,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:43:18,402 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 496 transitions. [2020-07-20 10:43:18,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:43:18,402 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 496 transitions. [2020-07-20 10:43:18,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-20 10:43:18,405 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:43:18,405 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:43:18,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:18,618 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:43:18,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:43:18,619 INFO L82 PathProgramCache]: Analyzing trace with hash -629504636, now seen corresponding path program 1 times [2020-07-20 10:43:18,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:43:18,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456408946] [2020-07-20 10:43:18,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:43:18,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 10:43:18,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:43:18,924 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-20 10:43:18,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 10:43:19,244 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-20 10:43:19,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456408946] [2020-07-20 10:43:19,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 10:43:19,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 10:43:19,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980653397] [2020-07-20 10:43:19,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:43:19,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:43:19,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:43:19,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:43:19,247 INFO L87 Difference]: Start difference. First operand 402 states and 496 transitions. Second operand 6 states. [2020-07-20 10:43:19,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:43:19,919 INFO L93 Difference]: Finished difference Result 842 states and 1061 transitions. [2020-07-20 10:43:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 10:43:19,924 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-07-20 10:43:19,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:43:19,933 INFO L225 Difference]: With dead ends: 842 [2020-07-20 10:43:19,933 INFO L226 Difference]: Without dead ends: 464 [2020-07-20 10:43:19,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 287 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 10:43:19,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-07-20 10:43:19,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 424. [2020-07-20 10:43:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-07-20 10:43:19,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 493 transitions. [2020-07-20 10:43:19,969 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 493 transitions. Word has length 146 [2020-07-20 10:43:19,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:43:19,972 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 493 transitions. [2020-07-20 10:43:19,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:43:19,972 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 493 transitions. [2020-07-20 10:43:19,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-20 10:43:19,978 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:43:19,978 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:43:20,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:20,192 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:43:20,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:43:20,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1930733102, now seen corresponding path program 1 times [2020-07-20 10:43:20,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:43:20,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771307168] [2020-07-20 10:43:20,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:43:20,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 10:43:20,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:43:20,427 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-20 10:43:20,428 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:43:20,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771307168] [2020-07-20 10:43:20,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:43:20,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 10:43:20,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277044943] [2020-07-20 10:43:20,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:43:20,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:43:20,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:43:20,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:43:20,431 INFO L87 Difference]: Start difference. First operand 424 states and 493 transitions. Second operand 6 states. [2020-07-20 10:43:20,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:43:20,479 INFO L93 Difference]: Finished difference Result 834 states and 987 transitions. [2020-07-20 10:43:20,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 10:43:20,480 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2020-07-20 10:43:20,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:43:20,484 INFO L225 Difference]: With dead ends: 834 [2020-07-20 10:43:20,484 INFO L226 Difference]: Without dead ends: 434 [2020-07-20 10:43:20,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 10:43:20,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-07-20 10:43:20,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2020-07-20 10:43:20,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-07-20 10:43:20,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 504 transitions. [2020-07-20 10:43:20,512 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 504 transitions. Word has length 155 [2020-07-20 10:43:20,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:43:20,512 INFO L479 AbstractCegarLoop]: Abstraction has 434 states and 504 transitions. [2020-07-20 10:43:20,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:43:20,513 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 504 transitions. [2020-07-20 10:43:20,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-20 10:43:20,516 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:43:20,516 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:43:20,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:20,732 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:43:20,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:43:20,733 INFO L82 PathProgramCache]: Analyzing trace with hash 497525520, now seen corresponding path program 1 times [2020-07-20 10:43:20,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:43:20,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299329898] [2020-07-20 10:43:20,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:43:20,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 10:43:20,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:43:20,993 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-20 10:43:20,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:43:20,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299329898] [2020-07-20 10:43:20,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:43:20,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 10:43:20,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045553361] [2020-07-20 10:43:20,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 10:43:20,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:43:20,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 10:43:20,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 10:43:20,997 INFO L87 Difference]: Start difference. First operand 434 states and 504 transitions. Second operand 5 states. [2020-07-20 10:43:21,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:43:21,043 INFO L93 Difference]: Finished difference Result 833 states and 990 transitions. [2020-07-20 10:43:21,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 10:43:21,043 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-07-20 10:43:21,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:43:21,047 INFO L225 Difference]: With dead ends: 833 [2020-07-20 10:43:21,047 INFO L226 Difference]: Without dead ends: 423 [2020-07-20 10:43:21,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 10:43:21,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-20 10:43:21,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2020-07-20 10:43:21,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 423 states. [2020-07-20 10:43:21,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 490 transitions. [2020-07-20 10:43:21,072 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 490 transitions. Word has length 155 [2020-07-20 10:43:21,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:43:21,073 INFO L479 AbstractCegarLoop]: Abstraction has 423 states and 490 transitions. [2020-07-20 10:43:21,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 10:43:21,073 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 490 transitions. [2020-07-20 10:43:21,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-20 10:43:21,076 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:43:21,076 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:43:21,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:21,291 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:43:21,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:43:21,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1961598929, now seen corresponding path program 1 times [2020-07-20 10:43:21,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:43:21,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863095660] [2020-07-20 10:43:21,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:43:21,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 10:43:21,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:43:21,513 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:43:21,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:43:21,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863095660] [2020-07-20 10:43:21,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:43:21,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 10:43:21,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948545381] [2020-07-20 10:43:21,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:43:21,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:43:21,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:43:21,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:43:21,515 INFO L87 Difference]: Start difference. First operand 423 states and 490 transitions. Second operand 6 states. [2020-07-20 10:43:22,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:43:22,603 INFO L93 Difference]: Finished difference Result 1210 states and 1483 transitions. [2020-07-20 10:43:22,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 10:43:22,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2020-07-20 10:43:22,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:43:22,609 INFO L225 Difference]: With dead ends: 1210 [2020-07-20 10:43:22,609 INFO L226 Difference]: Without dead ends: 811 [2020-07-20 10:43:22,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 10:43:22,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2020-07-20 10:43:22,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 782. [2020-07-20 10:43:22,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2020-07-20 10:43:22,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 922 transitions. [2020-07-20 10:43:22,662 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 922 transitions. Word has length 155 [2020-07-20 10:43:22,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:43:22,662 INFO L479 AbstractCegarLoop]: Abstraction has 782 states and 922 transitions. [2020-07-20 10:43:22,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:43:22,663 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 922 transitions. [2020-07-20 10:43:22,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-07-20 10:43:22,667 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:43:22,667 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:43:22,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:22,881 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:43:22,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:43:22,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1745517035, now seen corresponding path program 1 times [2020-07-20 10:43:22,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:43:22,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1534635911] [2020-07-20 10:43:22,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:23,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:43:23,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 10:43:23,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:43:23,123 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:43:23,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 10:43:23,585 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 10:43:23,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1534635911] [2020-07-20 10:43:23,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 10:43:23,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-20 10:43:23,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15850341] [2020-07-20 10:43:23,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 10:43:23,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:43:23,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 10:43:23,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-20 10:43:23,588 INFO L87 Difference]: Start difference. First operand 782 states and 922 transitions. Second operand 12 states. [2020-07-20 10:43:25,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:43:25,270 INFO L93 Difference]: Finished difference Result 2102 states and 2649 transitions. [2020-07-20 10:43:25,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-20 10:43:25,271 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 159 [2020-07-20 10:43:25,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:43:25,287 INFO L225 Difference]: With dead ends: 2102 [2020-07-20 10:43:25,288 INFO L226 Difference]: Without dead ends: 1344 [2020-07-20 10:43:25,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 306 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-20 10:43:25,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2020-07-20 10:43:25,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1012. [2020-07-20 10:43:25,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1012 states. [2020-07-20 10:43:25,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1182 transitions. [2020-07-20 10:43:25,397 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1182 transitions. Word has length 159 [2020-07-20 10:43:25,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:43:25,397 INFO L479 AbstractCegarLoop]: Abstraction has 1012 states and 1182 transitions. [2020-07-20 10:43:25,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 10:43:25,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1182 transitions. [2020-07-20 10:43:25,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-20 10:43:25,405 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:43:25,406 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:43:25,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:25,620 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:43:25,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:43:25,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1602854524, now seen corresponding path program 2 times [2020-07-20 10:43:25,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:43:25,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901651454] [2020-07-20 10:43:25,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:43:25,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 10:43:25,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:43:25,921 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 10:43:25,922 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 10:43:26,001 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 114 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 10:43:26,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 10:43:26,313 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 10:43:26,476 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-20 10:43:26,477 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 10:43:26,535 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-20 10:43:26,535 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 10:43:26,556 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-20 10:43:26,557 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 10:43:26,602 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 10:43:26,819 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 50 proven. 32 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-20 10:43:26,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901651454] [2020-07-20 10:43:26,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 10:43:26,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2020-07-20 10:43:26,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186315945] [2020-07-20 10:43:26,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-20 10:43:26,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:43:26,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-20 10:43:26,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-07-20 10:43:26,822 INFO L87 Difference]: Start difference. First operand 1012 states and 1182 transitions. Second operand 16 states. [2020-07-20 10:43:29,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:43:29,482 INFO L93 Difference]: Finished difference Result 2927 states and 3689 transitions. [2020-07-20 10:43:29,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-20 10:43:29,483 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 229 [2020-07-20 10:43:29,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:43:29,508 INFO L225 Difference]: With dead ends: 2927 [2020-07-20 10:43:29,508 INFO L226 Difference]: Without dead ends: 2036 [2020-07-20 10:43:29,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 448 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2020-07-20 10:43:29,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2020-07-20 10:43:29,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 1490. [2020-07-20 10:43:29,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-07-20 10:43:29,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1731 transitions. [2020-07-20 10:43:29,687 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1731 transitions. Word has length 229 [2020-07-20 10:43:29,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:43:29,688 INFO L479 AbstractCegarLoop]: Abstraction has 1490 states and 1731 transitions. [2020-07-20 10:43:29,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-20 10:43:29,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1731 transitions. [2020-07-20 10:43:29,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-20 10:43:29,698 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:43:29,699 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:43:29,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:29,913 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:43:29,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:43:29,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1302818758, now seen corresponding path program 1 times [2020-07-20 10:43:29,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:43:29,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540598700] [2020-07-20 10:43:29,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:43:30,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 10:43:30,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:43:30,415 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-07-20 10:43:30,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:43:30,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540598700] [2020-07-20 10:43:30,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:43:30,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 10:43:30,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504604590] [2020-07-20 10:43:30,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:43:30,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:43:30,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:43:30,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:43:30,417 INFO L87 Difference]: Start difference. First operand 1490 states and 1731 transitions. Second operand 6 states. [2020-07-20 10:43:30,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:43:30,504 INFO L93 Difference]: Finished difference Result 1935 states and 2243 transitions. [2020-07-20 10:43:30,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 10:43:30,505 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 229 [2020-07-20 10:43:30,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:43:30,506 INFO L225 Difference]: With dead ends: 1935 [2020-07-20 10:43:30,506 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 10:43:30,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 10:43:30,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 10:43:30,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 10:43:30,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 10:43:30,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 10:43:30,513 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 229 [2020-07-20 10:43:30,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:43:30,514 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 10:43:30,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:43:30,514 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 10:43:30,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 10:43:30,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:43:30,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 10:43:32,836 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 17 [2020-07-20 10:43:33,393 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 25 [2020-07-20 10:43:33,590 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2020-07-20 10:43:33,868 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 35 [2020-07-20 10:43:34,035 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 31 [2020-07-20 10:43:34,253 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 30 [2020-07-20 10:43:34,612 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2020-07-20 10:43:34,726 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 19 [2020-07-20 10:43:35,316 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 29 [2020-07-20 10:43:35,511 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 30 [2020-07-20 10:43:35,709 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 39 [2020-07-20 10:43:35,982 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 25 [2020-07-20 10:43:36,295 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 30 [2020-07-20 10:43:36,686 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 30 [2020-07-20 10:43:36,819 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 20 [2020-07-20 10:43:36,870 INFO L268 CegarLoopResult]: For program point L382(lines 382 386) no Hoare annotation was computed. [2020-07-20 10:43:36,870 INFO L268 CegarLoopResult]: For program point L382-1(lines 382 386) no Hoare annotation was computed. [2020-07-20 10:43:36,870 INFO L268 CegarLoopResult]: For program point L377(line 377) no Hoare annotation was computed. [2020-07-20 10:43:36,870 INFO L268 CegarLoopResult]: For program point L376-2(lines 376 397) no Hoare annotation was computed. [2020-07-20 10:43:36,870 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 351 406) no Hoare annotation was computed. [2020-07-20 10:43:36,871 INFO L268 CegarLoopResult]: For program point L398(lines 375 399) no Hoare annotation was computed. [2020-07-20 10:43:36,871 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 351 406) no Hoare annotation was computed. [2020-07-20 10:43:36,871 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 351 406) no Hoare annotation was computed. [2020-07-20 10:43:36,871 INFO L268 CegarLoopResult]: For program point L439(lines 439 443) no Hoare annotation was computed. [2020-07-20 10:43:36,871 INFO L268 CegarLoopResult]: For program point L439-1(lines 439 443) no Hoare annotation was computed. [2020-07-20 10:43:36,871 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 407 466) no Hoare annotation was computed. [2020-07-20 10:43:36,871 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 10:43:36,871 INFO L268 CegarLoopResult]: For program point L433-2(lines 433 458) no Hoare annotation was computed. [2020-07-20 10:43:36,872 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 407 466) no Hoare annotation was computed. [2020-07-20 10:43:36,872 INFO L268 CegarLoopResult]: For program point L459(lines 432 460) no Hoare annotation was computed. [2020-07-20 10:43:36,872 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 407 466) no Hoare annotation was computed. [2020-07-20 10:43:36,872 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 10:43:36,872 INFO L268 CegarLoopResult]: For program point L452-1(line 452) no Hoare annotation was computed. [2020-07-20 10:43:36,872 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 994 1000) the Hoare annotation is: true [2020-07-20 10:43:36,873 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 994 1000) no Hoare annotation was computed. [2020-07-20 10:43:36,873 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 1001 1009) no Hoare annotation was computed. [2020-07-20 10:43:36,873 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 1001 1009) the Hoare annotation is: true [2020-07-20 10:43:36,873 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 1001 1009) no Hoare annotation was computed. [2020-07-20 10:43:36,873 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 739 763) the Hoare annotation is: true [2020-07-20 10:43:36,873 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 739 763) no Hoare annotation was computed. [2020-07-20 10:43:36,873 INFO L264 CegarLoopResult]: At program point L753(line 753) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= 0 ~systemActive~0)) .cse2) (or .cse1 (not (<= 2 ~waterLevel~0)) (not (<= 1 ~pumpRunning~0))))) [2020-07-20 10:43:36,874 INFO L268 CegarLoopResult]: For program point L751(lines 751 757) no Hoare annotation was computed. [2020-07-20 10:43:36,874 INFO L264 CegarLoopResult]: At program point L749(line 749) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= 0 ~systemActive~0)) .cse2) (or .cse1 (not (<= 2 ~waterLevel~0)) (not (<= 1 ~pumpRunning~0))))) [2020-07-20 10:43:36,874 INFO L268 CegarLoopResult]: For program point L749-1(line 749) no Hoare annotation was computed. [2020-07-20 10:43:36,874 INFO L268 CegarLoopResult]: For program point L747(lines 747 760) no Hoare annotation was computed. [2020-07-20 10:43:36,874 INFO L268 CegarLoopResult]: For program point L747-1(lines 739 763) no Hoare annotation was computed. [2020-07-20 10:43:36,874 INFO L271 CegarLoopResult]: At program point L745(line 745) the Hoare annotation is: true [2020-07-20 10:43:36,875 INFO L268 CegarLoopResult]: For program point L745-1(line 745) no Hoare annotation was computed. [2020-07-20 10:43:36,875 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 840 862) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 10:43:36,875 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 840 862) no Hoare annotation was computed. [2020-07-20 10:43:36,875 INFO L264 CegarLoopResult]: At program point L852(line 852) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 10:43:36,875 INFO L264 CegarLoopResult]: At program point L852-1(line 852) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 10:43:36,875 INFO L268 CegarLoopResult]: For program point L850(lines 850 857) no Hoare annotation was computed. [2020-07-20 10:43:36,875 INFO L268 CegarLoopResult]: For program point L850-1(lines 850 857) no Hoare annotation was computed. [2020-07-20 10:43:36,875 INFO L268 CegarLoopResult]: For program point L848(line 848) no Hoare annotation was computed. [2020-07-20 10:43:36,875 INFO L264 CegarLoopResult]: At program point L847(line 847) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 10:43:36,876 INFO L264 CegarLoopResult]: At program point L846(line 846) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 10:43:36,876 INFO L264 CegarLoopResult]: At program point L846-1(line 846) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 10:43:36,876 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 840 862) no Hoare annotation was computed. [2020-07-20 10:43:36,876 INFO L268 CegarLoopResult]: For program point L801(line 801) no Hoare annotation was computed. [2020-07-20 10:43:36,876 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 796 819) no Hoare annotation was computed. [2020-07-20 10:43:36,876 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 796 819) no Hoare annotation was computed. [2020-07-20 10:43:36,876 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 796 819) no Hoare annotation was computed. [2020-07-20 10:43:36,876 INFO L268 CegarLoopResult]: For program point L814(line 814) no Hoare annotation was computed. [2020-07-20 10:43:36,876 INFO L268 CegarLoopResult]: For program point L813(line 813) no Hoare annotation was computed. [2020-07-20 10:43:36,876 INFO L268 CegarLoopResult]: For program point L812(line 812) no Hoare annotation was computed. [2020-07-20 10:43:36,876 INFO L268 CegarLoopResult]: For program point L811(line 811) no Hoare annotation was computed. [2020-07-20 10:43:36,877 INFO L268 CegarLoopResult]: For program point L810(line 810) no Hoare annotation was computed. [2020-07-20 10:43:36,877 INFO L268 CegarLoopResult]: For program point L809(line 809) no Hoare annotation was computed. [2020-07-20 10:43:36,877 INFO L268 CegarLoopResult]: For program point L808(line 808) no Hoare annotation was computed. [2020-07-20 10:43:36,877 INFO L268 CegarLoopResult]: For program point L807(line 807) no Hoare annotation was computed. [2020-07-20 10:43:36,877 INFO L268 CegarLoopResult]: For program point L806(line 806) no Hoare annotation was computed. [2020-07-20 10:43:36,877 INFO L268 CegarLoopResult]: For program point L805(line 805) no Hoare annotation was computed. [2020-07-20 10:43:36,877 INFO L268 CegarLoopResult]: For program point L804(line 804) no Hoare annotation was computed. [2020-07-20 10:43:36,877 INFO L268 CegarLoopResult]: For program point L803(line 803) no Hoare annotation was computed. [2020-07-20 10:43:36,877 INFO L268 CegarLoopResult]: For program point L802(line 802) no Hoare annotation was computed. [2020-07-20 10:43:36,877 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 275 289) no Hoare annotation was computed. [2020-07-20 10:43:36,877 INFO L264 CegarLoopResult]: At program point L281(line 281) the Hoare annotation is: (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|))) (or (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 2 ~waterLevel~0)) (<= |old(~pumpRunning~0)| ~pumpRunning~0))) [2020-07-20 10:43:36,877 INFO L268 CegarLoopResult]: For program point L279(lines 279 285) no Hoare annotation was computed. [2020-07-20 10:43:36,878 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 275 289) the Hoare annotation is: (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) (or (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 2 ~waterLevel~0)) (<= |old(~pumpRunning~0)| ~pumpRunning~0))) [2020-07-20 10:43:36,878 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 275 289) no Hoare annotation was computed. [2020-07-20 10:43:36,878 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 192 200) no Hoare annotation was computed. [2020-07-20 10:43:36,878 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 192 200) the Hoare annotation is: true [2020-07-20 10:43:36,878 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 192 200) no Hoare annotation was computed. [2020-07-20 10:43:36,878 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 256 274) the Hoare annotation is: true [2020-07-20 10:43:36,878 INFO L268 CegarLoopResult]: For program point L265(lines 265 269) no Hoare annotation was computed. [2020-07-20 10:43:36,878 INFO L271 CegarLoopResult]: At program point L263(line 263) the Hoare annotation is: true [2020-07-20 10:43:36,878 INFO L268 CegarLoopResult]: For program point L265-2(lines 265 269) no Hoare annotation was computed. [2020-07-20 10:43:36,878 INFO L268 CegarLoopResult]: For program point L263-1(line 263) no Hoare annotation was computed. [2020-07-20 10:43:36,878 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 256 274) no Hoare annotation was computed. [2020-07-20 10:43:36,878 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 256 274) no Hoare annotation was computed. [2020-07-20 10:43:36,878 INFO L268 CegarLoopResult]: For program point L220(lines 220 228) no Hoare annotation was computed. [2020-07-20 10:43:36,879 INFO L268 CegarLoopResult]: For program point L220-2(lines 220 228) no Hoare annotation was computed. [2020-07-20 10:43:36,879 INFO L268 CegarLoopResult]: For program point L208(lines 208 216) no Hoare annotation was computed. [2020-07-20 10:43:36,879 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 201 236) no Hoare annotation was computed. [2020-07-20 10:43:36,879 INFO L268 CegarLoopResult]: For program point L208-2(lines 208 216) no Hoare annotation was computed. [2020-07-20 10:43:36,879 INFO L268 CegarLoopResult]: For program point L231(line 231) no Hoare annotation was computed. [2020-07-20 10:43:36,879 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 201 236) no Hoare annotation was computed. [2020-07-20 10:43:36,879 INFO L268 CegarLoopResult]: For program point L231-1(line 231) no Hoare annotation was computed. [2020-07-20 10:43:36,879 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 201 236) no Hoare annotation was computed. [2020-07-20 10:43:36,879 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 987 993) no Hoare annotation was computed. [2020-07-20 10:43:36,879 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 987 993) the Hoare annotation is: true [2020-07-20 10:43:36,880 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 305 350) no Hoare annotation was computed. [2020-07-20 10:43:36,880 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 305 350) no Hoare annotation was computed. [2020-07-20 10:43:36,880 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 305 350) no Hoare annotation was computed. [2020-07-20 10:43:36,880 INFO L268 CegarLoopResult]: For program point L638(lines 638 645) no Hoare annotation was computed. [2020-07-20 10:43:36,880 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 618 663) no Hoare annotation was computed. [2020-07-20 10:43:36,880 INFO L268 CegarLoopResult]: For program point L632(lines 632 652) no Hoare annotation was computed. [2020-07-20 10:43:36,880 INFO L268 CegarLoopResult]: For program point L632-1(lines 632 652) no Hoare annotation was computed. [2020-07-20 10:43:36,880 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 618 663) no Hoare annotation was computed. [2020-07-20 10:43:36,880 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 618 663) no Hoare annotation was computed. [2020-07-20 10:43:36,880 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 827 836) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 10:43:36,880 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 827 836) no Hoare annotation was computed. [2020-07-20 10:43:36,880 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 827 836) no Hoare annotation was computed. [2020-07-20 10:43:36,881 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 181 191) the Hoare annotation is: true [2020-07-20 10:43:36,881 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 181 191) no Hoare annotation was computed. [2020-07-20 10:43:36,881 INFO L271 CegarLoopResult]: At program point L186(line 186) the Hoare annotation is: true [2020-07-20 10:43:36,881 INFO L268 CegarLoopResult]: For program point L186-1(line 186) no Hoare annotation was computed. [2020-07-20 10:43:36,881 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 181 191) no Hoare annotation was computed. [2020-07-20 10:43:36,881 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 173 180) the Hoare annotation is: (let ((.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (<= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) .cse0 .cse1) (or .cse0 (not (<= 2 ~waterLevel~0)) .cse1))) [2020-07-20 10:43:36,881 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 173 180) no Hoare annotation was computed. [2020-07-20 10:43:36,881 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 173 180) no Hoare annotation was computed. [2020-07-20 10:43:36,882 INFO L268 CegarLoopResult]: For program point L956(lines 956 962) no Hoare annotation was computed. [2020-07-20 10:43:36,882 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 952 965) no Hoare annotation was computed. [2020-07-20 10:43:36,882 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 952 965) the Hoare annotation is: true [2020-07-20 10:43:36,882 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 952 965) no Hoare annotation was computed. [2020-07-20 10:43:36,882 INFO L264 CegarLoopResult]: At program point L159(line 159) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))))) [2020-07-20 10:43:36,882 INFO L268 CegarLoopResult]: For program point L159-1(lines 140 164) no Hoare annotation was computed. [2020-07-20 10:43:36,882 INFO L264 CegarLoopResult]: At program point L154(line 154) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-20 10:43:36,883 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 140 164) no Hoare annotation was computed. [2020-07-20 10:43:36,883 INFO L264 CegarLoopResult]: At program point L150(line 150) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-20 10:43:36,883 INFO L268 CegarLoopResult]: For program point L148(lines 148 156) no Hoare annotation was computed. [2020-07-20 10:43:36,883 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 140 164) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-20 10:43:36,883 INFO L264 CegarLoopResult]: At program point L146(line 146) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-20 10:43:36,883 INFO L268 CegarLoopResult]: For program point L146-1(line 146) no Hoare annotation was computed. [2020-07-20 10:43:36,883 INFO L268 CegarLoopResult]: For program point L144(lines 144 161) no Hoare annotation was computed. [2020-07-20 10:43:36,884 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 80 86) no Hoare annotation was computed. [2020-07-20 10:43:36,884 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 80 86) the Hoare annotation is: true [2020-07-20 10:43:36,884 INFO L264 CegarLoopResult]: At program point testENTRY(lines 668 735) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 10:43:36,884 INFO L264 CegarLoopResult]: At program point L700(line 700) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= 1 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 10:43:36,884 INFO L268 CegarLoopResult]: For program point L698(lines 698 704) no Hoare annotation was computed. [2020-07-20 10:43:36,884 INFO L268 CegarLoopResult]: For program point L698-1(lines 698 704) no Hoare annotation was computed. [2020-07-20 10:43:36,884 INFO L268 CegarLoopResult]: For program point testFINAL(lines 668 735) no Hoare annotation was computed. [2020-07-20 10:43:36,885 INFO L264 CegarLoopResult]: At program point L725(lines 678 727) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= 1 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 10:43:36,885 INFO L264 CegarLoopResult]: At program point L690(line 690) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= 1 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 10:43:36,885 INFO L268 CegarLoopResult]: For program point L688(lines 688 694) no Hoare annotation was computed. [2020-07-20 10:43:36,885 INFO L268 CegarLoopResult]: For program point L688-1(lines 688 694) no Hoare annotation was computed. [2020-07-20 10:43:36,885 INFO L268 CegarLoopResult]: For program point L680(lines 680 684) no Hoare annotation was computed. [2020-07-20 10:43:36,885 INFO L264 CegarLoopResult]: At program point L728(lines 677 729) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 10:43:36,885 INFO L264 CegarLoopResult]: At program point L718(line 718) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 (<= 1 ~pumpRunning~0)) (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 10:43:36,885 INFO L268 CegarLoopResult]: For program point L716(lines 716 722) no Hoare annotation was computed. [2020-07-20 10:43:36,886 INFO L264 CegarLoopResult]: At program point L716-1(lines 708 723) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= 1 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 10:43:36,886 INFO L268 CegarLoopResult]: For program point L679(lines 678 727) no Hoare annotation was computed. [2020-07-20 10:43:36,886 INFO L264 CegarLoopResult]: At program point L710(line 710) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 (<= 1 ~pumpRunning~0)) (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 10:43:36,886 INFO L268 CegarLoopResult]: For program point L708(lines 708 723) no Hoare annotation was computed. [2020-07-20 10:43:36,886 INFO L268 CegarLoopResult]: For program point testEXIT(lines 668 735) no Hoare annotation was computed. [2020-07-20 10:43:36,886 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 572 617) no Hoare annotation was computed. [2020-07-20 10:43:36,886 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 572 617) no Hoare annotation was computed. [2020-07-20 10:43:36,886 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 572 617) no Hoare annotation was computed. [2020-07-20 10:43:36,886 INFO L268 CegarLoopResult]: For program point L592(lines 592 599) no Hoare annotation was computed. [2020-07-20 10:43:36,887 INFO L268 CegarLoopResult]: For program point L586(lines 586 606) no Hoare annotation was computed. [2020-07-20 10:43:36,887 INFO L268 CegarLoopResult]: For program point L586-1(lines 586 606) no Hoare annotation was computed. [2020-07-20 10:43:36,887 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 966 974) no Hoare annotation was computed. [2020-07-20 10:43:36,887 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 966 974) the Hoare annotation is: true [2020-07-20 10:43:36,887 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 966 974) no Hoare annotation was computed. [2020-07-20 10:43:36,887 INFO L268 CegarLoopResult]: For program point L928(lines 928 936) no Hoare annotation was computed. [2020-07-20 10:43:36,887 INFO L268 CegarLoopResult]: For program point L928-2(lines 928 936) no Hoare annotation was computed. [2020-07-20 10:43:36,887 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 920 942) no Hoare annotation was computed. [2020-07-20 10:43:36,887 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 920 942) no Hoare annotation was computed. [2020-07-20 10:43:36,888 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 920 942) no Hoare annotation was computed. [2020-07-20 10:43:36,888 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 469 571) no Hoare annotation was computed. [2020-07-20 10:43:36,888 INFO L268 CegarLoopResult]: For program point L539(lines 517 540) no Hoare annotation was computed. [2020-07-20 10:43:36,888 INFO L268 CegarLoopResult]: For program point L498(lines 498 514) no Hoare annotation was computed. [2020-07-20 10:43:36,888 INFO L268 CegarLoopResult]: For program point L558(lines 558 565) no Hoare annotation was computed. [2020-07-20 10:43:36,888 INFO L268 CegarLoopResult]: For program point L519(lines 518 538) no Hoare annotation was computed. [2020-07-20 10:43:36,888 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 10:43:36,888 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 469 571) no Hoare annotation was computed. [2020-07-20 10:43:36,888 INFO L268 CegarLoopResult]: For program point L550-1(line 550) no Hoare annotation was computed. [2020-07-20 10:43:36,888 INFO L268 CegarLoopResult]: For program point L515(lines 515 556) no Hoare annotation was computed. [2020-07-20 10:43:36,889 INFO L268 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-07-20 10:43:36,889 INFO L268 CegarLoopResult]: For program point L534-1(line 534) no Hoare annotation was computed. [2020-07-20 10:43:36,889 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 469 571) no Hoare annotation was computed. [2020-07-20 10:43:36,889 INFO L268 CegarLoopResult]: For program point L493(lines 493 497) no Hoare annotation was computed. [2020-07-20 10:43:36,889 INFO L268 CegarLoopResult]: For program point L557(lines 557 568) no Hoare annotation was computed. [2020-07-20 10:43:36,889 INFO L268 CegarLoopResult]: For program point L520(lines 520 524) no Hoare annotation was computed. [2020-07-20 10:43:36,889 INFO L268 CegarLoopResult]: For program point L518-2(lines 518 538) no Hoare annotation was computed. [2020-07-20 10:43:36,889 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 977 986) no Hoare annotation was computed. [2020-07-20 10:43:36,889 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 977 986) no Hoare annotation was computed. [2020-07-20 10:43:36,890 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 977 986) no Hoare annotation was computed. [2020-07-20 10:43:36,890 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 10:43:36,890 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~pumpRunning~0)| ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-20 10:43:36,890 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 10:43:36,890 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 165 172) no Hoare annotation was computed. [2020-07-20 10:43:36,890 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 165 172) no Hoare annotation was computed. [2020-07-20 10:43:36,890 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 165 172) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-20 10:43:36,890 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 237 255) no Hoare annotation was computed. [2020-07-20 10:43:36,890 INFO L268 CegarLoopResult]: For program point L246(lines 246 250) no Hoare annotation was computed. [2020-07-20 10:43:36,890 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 237 255) the Hoare annotation is: true [2020-07-20 10:43:36,891 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 237 255) no Hoare annotation was computed. [2020-07-20 10:43:36,891 INFO L271 CegarLoopResult]: At program point L244(line 244) the Hoare annotation is: true [2020-07-20 10:43:36,891 INFO L268 CegarLoopResult]: For program point L246-2(lines 246 250) no Hoare annotation was computed. [2020-07-20 10:43:36,891 INFO L268 CegarLoopResult]: For program point L244-1(line 244) no Hoare annotation was computed. [2020-07-20 10:43:36,891 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 943 951) the Hoare annotation is: true [2020-07-20 10:43:36,891 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 943 951) no Hoare annotation was computed. [2020-07-20 10:43:36,891 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 943 951) no Hoare annotation was computed. [2020-07-20 10:43:36,891 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-20 10:43:36,891 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-20 10:43:36,892 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-20 10:43:36,892 INFO L271 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 899 910) the Hoare annotation is: true [2020-07-20 10:43:36,892 INFO L268 CegarLoopResult]: For program point L903-1(lines 899 910) no Hoare annotation was computed. [2020-07-20 10:43:36,892 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 899 910) no Hoare annotation was computed. [2020-07-20 10:43:36,892 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 911 919) the Hoare annotation is: true [2020-07-20 10:43:36,892 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 911 919) no Hoare annotation was computed. [2020-07-20 10:43:36,892 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 911 919) no Hoare annotation was computed. [2020-07-20 10:43:36,892 INFO L264 CegarLoopResult]: At program point L62(line 62) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~pumpRunning~0)| ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= 0 ~systemActive~0)) .cse1 .cse2) (or .cse0 .cse1 .cse2))) [2020-07-20 10:43:36,893 INFO L268 CegarLoopResult]: For program point L60(lines 59 78) no Hoare annotation was computed. [2020-07-20 10:43:36,893 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 56 79) the Hoare annotation is: (let ((.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (<= 1 ~systemActive~0))) (.cse0 (and .cse4 (= 0 ~pumpRunning~0) .cse5)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse2) (or .cse3 (not (<= 1 |old(~pumpRunning~0)|)) (and .cse4 (<= |old(~pumpRunning~0)| ~pumpRunning~0) .cse5) (not (<= 2 |old(~waterLevel~0)|))) (or .cse3 .cse0 .cse1 .cse2)))) [2020-07-20 10:43:36,893 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 56 79) no Hoare annotation was computed. [2020-07-20 10:43:36,893 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 56 79) no Hoare annotation was computed. [2020-07-20 10:43:36,893 INFO L264 CegarLoopResult]: At program point L69(line 69) the Hoare annotation is: (let ((.cse6 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (= 0 ~pumpRunning~0)) (.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (and .cse1 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (<= 1 |old(~pumpRunning~0)|)) .cse2) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse3 (<= ~waterLevel~0 1) .cse4) .cse5 .cse6) (or (not (= 0 ~systemActive~0)) .cse5 .cse6) (or .cse0 (and .cse1 .cse3 .cse4) .cse5 .cse2))) [2020-07-20 10:43:36,893 INFO L264 CegarLoopResult]: At program point L67(lines 67 73) the Hoare annotation is: (let ((.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (= 0 ~pumpRunning~0)) (.cse6 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (<= 1 ~systemActive~0))) (.cse0 (and .cse4 .cse5 .cse6)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse2) (or .cse3 (not (<= 1 |old(~pumpRunning~0)|)) (and .cse4 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse5) (not (<= 2 |old(~waterLevel~0)|))) (or .cse3 .cse0 .cse1 (and (<= 2 ~waterLevel~0) .cse4 (<= 1 ~pumpRunning~0) .cse6) .cse2)))) [2020-07-20 10:43:36,894 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 766 795) no Hoare annotation was computed. [2020-07-20 10:43:36,894 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 766 795) the Hoare annotation is: true [2020-07-20 10:43:36,894 INFO L271 CegarLoopResult]: At program point L791(lines 766 795) the Hoare annotation is: true [2020-07-20 10:43:36,894 INFO L268 CegarLoopResult]: For program point L787(line 787) no Hoare annotation was computed. [2020-07-20 10:43:36,894 INFO L268 CegarLoopResult]: For program point L780(lines 780 784) no Hoare annotation was computed. [2020-07-20 10:43:36,894 INFO L271 CegarLoopResult]: At program point L780-1(lines 780 784) the Hoare annotation is: true [2020-07-20 10:43:36,894 INFO L268 CegarLoopResult]: For program point L777(line 777) no Hoare annotation was computed. [2020-07-20 10:43:36,894 INFO L271 CegarLoopResult]: At program point L776-2(lines 776 790) the Hoare annotation is: true [2020-07-20 10:43:36,894 INFO L271 CegarLoopResult]: At program point L772(line 772) the Hoare annotation is: true [2020-07-20 10:43:36,895 INFO L268 CegarLoopResult]: For program point L772-1(line 772) no Hoare annotation was computed. [2020-07-20 10:43:36,895 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 875 886) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (<= 1 ~pumpRunning~0)) (not (<= 2 |old(~waterLevel~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 10:43:36,895 INFO L268 CegarLoopResult]: For program point L879-1(lines 875 886) no Hoare annotation was computed. [2020-07-20 10:43:36,895 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 875 886) no Hoare annotation was computed. [2020-07-20 10:43:36,895 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 820 826) no Hoare annotation was computed. [2020-07-20 10:43:36,895 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 820 826) the Hoare annotation is: true [2020-07-20 10:43:36,895 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 10:43:36,895 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-20 10:43:36,896 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 10:43:36,896 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 10:43:36,896 INFO L268 CegarLoopResult]: For program point startSystemEXIT(lines 290 297) no Hoare annotation was computed. [2020-07-20 10:43:36,896 INFO L271 CegarLoopResult]: At program point startSystemENTRY(lines 290 297) the Hoare annotation is: true [2020-07-20 10:43:36,896 INFO L268 CegarLoopResult]: For program point startSystemFINAL(lines 290 297) no Hoare annotation was computed. [2020-07-20 10:43:36,896 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 88 112) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-20 10:43:36,896 INFO L268 CegarLoopResult]: For program point L96(lines 96 104) no Hoare annotation was computed. [2020-07-20 10:43:36,896 INFO L264 CegarLoopResult]: At program point L94(line 94) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-20 10:43:36,897 INFO L268 CegarLoopResult]: For program point L94-1(line 94) no Hoare annotation was computed. [2020-07-20 10:43:36,897 INFO L268 CegarLoopResult]: For program point L92(lines 92 109) no Hoare annotation was computed. [2020-07-20 10:43:36,897 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 88 112) no Hoare annotation was computed. [2020-07-20 10:43:36,897 INFO L264 CegarLoopResult]: At program point L107(line 107) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-20 10:43:36,897 INFO L268 CegarLoopResult]: For program point L107-1(lines 88 112) no Hoare annotation was computed. [2020-07-20 10:43:36,897 INFO L264 CegarLoopResult]: At program point L102(line 102) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (and (= 0 ~pumpRunning~0) (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-20 10:43:36,897 INFO L264 CegarLoopResult]: At program point L98(line 98) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-20 10:43:36,897 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 887 898) no Hoare annotation was computed. [2020-07-20 10:43:36,898 INFO L268 CegarLoopResult]: For program point L891-1(lines 887 898) no Hoare annotation was computed. [2020-07-20 10:43:36,898 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 887 898) the Hoare annotation is: (let ((.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse5 (not (= 0 ~systemActive~0))) (.cse1 (not (= 0 ~pumpRunning~0))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse4))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= ~waterLevel~0 1) .cse4) .cse5 .cse1 .cse2) (or .cse0 (not (<= 1 ~pumpRunning~0)) .cse6 .cse3) (or .cse5 .cse1 .cse6 .cse3)))) [2020-07-20 10:43:36,898 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 864 871) no Hoare annotation was computed. [2020-07-20 10:43:36,898 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 868) no Hoare annotation was computed. [2020-07-20 10:43:36,898 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 864 871) the Hoare annotation is: true [2020-07-20 10:43:36,898 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 864 871) no Hoare annotation was computed. [2020-07-20 10:43:36,898 INFO L264 CegarLoopResult]: At program point L128(line 128) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))))) [2020-07-20 10:43:36,898 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 114 138) no Hoare annotation was computed. [2020-07-20 10:43:36,899 INFO L264 CegarLoopResult]: At program point L124(line 124) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (and (<= 1 processEnvironment__wrappee__lowWaterSensor_~tmp~1) (<= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-20 10:43:36,899 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 114 138) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-20 10:43:36,899 INFO L268 CegarLoopResult]: For program point L122(lines 122 130) no Hoare annotation was computed. [2020-07-20 10:43:36,899 INFO L264 CegarLoopResult]: At program point L120(line 120) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-20 10:43:36,899 INFO L268 CegarLoopResult]: For program point L120-1(line 120) no Hoare annotation was computed. [2020-07-20 10:43:36,899 INFO L268 CegarLoopResult]: For program point L118(lines 118 135) no Hoare annotation was computed. [2020-07-20 10:43:36,899 INFO L264 CegarLoopResult]: At program point L133(line 133) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))))) [2020-07-20 10:43:36,900 INFO L268 CegarLoopResult]: For program point L133-1(lines 114 138) no Hoare annotation was computed. [2020-07-20 10:43:36,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:43:36 BoogieIcfgContainer [2020-07-20 10:43:36,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 10:43:36,918 INFO L168 Benchmark]: Toolchain (without parser) took 24624.05 ms. Allocated memory was 145.2 MB in the beginning and 519.0 MB in the end (delta: 373.8 MB). Free memory was 101.3 MB in the beginning and 215.0 MB in the end (delta: -113.7 MB). Peak memory consumption was 390.1 MB. Max. memory is 7.1 GB. [2020-07-20 10:43:36,919 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 10:43:36,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.97 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 100.8 MB in the beginning and 169.7 MB in the end (delta: -68.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-07-20 10:43:36,920 INFO L168 Benchmark]: Boogie Preprocessor took 120.45 ms. Allocated memory is still 202.4 MB. Free memory was 169.7 MB in the beginning and 165.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-07-20 10:43:36,920 INFO L168 Benchmark]: RCFGBuilder took 1251.36 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 165.0 MB in the beginning and 192.1 MB in the end (delta: -27.1 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. [2020-07-20 10:43:36,921 INFO L168 Benchmark]: TraceAbstraction took 22548.99 ms. Allocated memory was 235.9 MB in the beginning and 519.0 MB in the end (delta: 283.1 MB). Free memory was 192.1 MB in the beginning and 215.0 MB in the end (delta: -22.9 MB). Peak memory consumption was 390.3 MB. Max. memory is 7.1 GB. [2020-07-20 10:43:36,924 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 693.97 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 100.8 MB in the beginning and 169.7 MB in the end (delta: -68.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.45 ms. Allocated memory is still 202.4 MB. Free memory was 169.7 MB in the beginning and 165.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1251.36 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 165.0 MB in the beginning and 192.1 MB in the end (delta: -27.1 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22548.99 ms. Allocated memory was 235.9 MB in the beginning and 519.0 MB in the end (delta: 283.1 MB). Free memory was 192.1 MB in the beginning and 215.0 MB in the end (delta: -22.9 MB). Peak memory consumption was 390.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 868]: 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: 776]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 766]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 678]: Loop Invariant Derived loop invariant: (((((!(\old(waterLevel) <= 1) || (((1 <= waterLevel && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive)) || (((2 <= waterLevel && splverifierCounter <= 0) && 1 <= systemActive) && 1 <= pumpRunning)) || !(0 == \old(pumpRunning))) || (((0 == systemActive && 0 == pumpRunning) && splverifierCounter <= 0) && \old(waterLevel) <= waterLevel)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 255 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.2s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2659 SDtfs, 2487 SDslu, 4571 SDs, 0 SdLazy, 4391 SolverSat, 1541 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2177 GetRequests, 2081 SyntacticMatches, 10 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1490occurred in iteration=12, 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, 13 MinimizatonAttempts, 981 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 71 LocationsWithAnnotation, 2903 PreInvPairs, 2982 NumberOfFragments, 1568 HoareAnnotationTreeSize, 2903 FomulaSimplifications, 15719 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 71 FomulaSimplificationsInter, 12321 FormulaSimplificationTreeSizeReductionInter, 4.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1609 NumberOfCodeBlocks, 1609 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2127 ConstructedInterpolants, 0 QuantifiedInterpolants, 548535 SizeOfPredicates, 47 NumberOfNonLiveVariables, 10806 ConjunctsInSsa, 107 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 612/699 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...