/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 16:22:27,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 16:22:27,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 16:22:27,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 16:22:27,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 16:22:27,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 16:22:27,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 16:22:27,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 16:22:27,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 16:22:27,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 16:22:27,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 16:22:27,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 16:22:27,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 16:22:27,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 16:22:27,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 16:22:27,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 16:22:27,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 16:22:27,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 16:22:27,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 16:22:27,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 16:22:27,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 16:22:27,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 16:22:27,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 16:22:27,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 16:22:27,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 16:22:27,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 16:22:27,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 16:22:27,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 16:22:27,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 16:22:27,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 16:22:27,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 16:22:27,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 16:22:27,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 16:22:27,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 16:22:27,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 16:22:27,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 16:22:27,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 16:22:27,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 16:22:27,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 16:22:27,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 16:22:27,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 16:22:27,125 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 16:22:27,163 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 16:22:27,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 16:22:27,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 16:22:27,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 16:22:27,169 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 16:22:27,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 16:22:27,170 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 16:22:27,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 16:22:27,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 16:22:27,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 16:22:27,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 16:22:27,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 16:22:27,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 16:22:27,171 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 16:22:27,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 16:22:27,173 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 16:22:27,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 16:22:27,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 16:22:27,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 16:22:27,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 16:22:27,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 16:22:27,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:22:27,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 16:22:27,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 16:22:27,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 16:22:27,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 16:22:27,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:27,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 16:22:27,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 16:22:27,179 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 16:22:27,458 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 16:22:27,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 16:22:27,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 16:22:27,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 16:22:27,476 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 16:22:27,477 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2020-07-20 16:22:27,540 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ced3bc97d/fbbf3699148f47aba09f553b9efde588/FLAG78594d1f9 [2020-07-20 16:22:28,062 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 16:22:28,063 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2020-07-20 16:22:28,079 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ced3bc97d/fbbf3699148f47aba09f553b9efde588/FLAG78594d1f9 [2020-07-20 16:22:28,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ced3bc97d/fbbf3699148f47aba09f553b9efde588 [2020-07-20 16:22:28,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 16:22:28,393 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 16:22:28,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 16:22:28,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 16:22:28,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 16:22:28,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:22:28" (1/1) ... [2020-07-20 16:22:28,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f9047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:28, skipping insertion in model container [2020-07-20 16:22:28,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:22:28" (1/1) ... [2020-07-20 16:22:28,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 16:22:28,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 16:22:29,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:22:29,040 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 16:22:29,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:22:29,170 INFO L208 MainTranslator]: Completed translation [2020-07-20 16:22:29,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:29 WrapperNode [2020-07-20 16:22:29,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 16:22:29,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 16:22:29,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 16:22:29,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 16:22:29,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:29" (1/1) ... [2020-07-20 16:22:29,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:29" (1/1) ... [2020-07-20 16:22:29,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:29" (1/1) ... [2020-07-20 16:22:29,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:29" (1/1) ... [2020-07-20 16:22:29,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:29" (1/1) ... [2020-07-20 16:22:29,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:29" (1/1) ... [2020-07-20 16:22:29,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:29" (1/1) ... [2020-07-20 16:22:29,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 16:22:29,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 16:22:29,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 16:22:29,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 16:22:29,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:29" (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 16:22:29,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 16:22:29,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 16:22:29,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 16:22:29,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-20 16:22:29,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 16:22:29,341 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 16:22:29,341 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 16:22:29,341 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 16:22:29,342 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 16:22:29,342 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 16:22:29,342 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 16:22:29,342 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 16:22:29,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 16:22:29,343 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 16:22:29,343 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 16:22:29,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 16:22:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 16:22:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 16:22:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 16:22:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 16:22:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-20 16:22:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 16:22:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 16:22:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 16:22:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 16:22:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 16:22:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 16:22:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 16:22:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 16:22:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 16:22:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 16:22:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 16:22:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 16:22:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 16:22:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 16:22:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 16:22:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 16:22:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 16:22:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 16:22:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 16:22:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 16:22:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 16:22:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 16:22:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 16:22:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 16:22:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 16:22:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-20 16:22:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 16:22:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 16:22:29,349 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 16:22:29,349 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 16:22:29,349 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 16:22:29,349 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 16:22:29,349 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 16:22:29,349 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 16:22:29,349 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 16:22:29,349 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 16:22:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 16:22:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 16:22:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 16:22:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 16:22:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 16:22:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 16:22:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 16:22:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 16:22:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 16:22:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 16:22:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 16:22:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-20 16:22:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 16:22:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 16:22:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 16:22:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 16:22:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 16:22:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 16:22:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 16:22:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 16:22:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 16:22:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 16:22:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 16:22:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 16:22:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 16:22:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 16:22:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 16:22:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 16:22:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 16:22:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 16:22:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 16:22:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 16:22:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 16:22:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 16:22:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 16:22:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 16:22:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 16:22:30,445 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 16:22:30,446 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 16:22:30,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:22:30 BoogieIcfgContainer [2020-07-20 16:22:30,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 16:22:30,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 16:22:30,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 16:22:30,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 16:22:30,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:22:28" (1/3) ... [2020-07-20 16:22:30,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0a58ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:22:30, skipping insertion in model container [2020-07-20 16:22:30,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:29" (2/3) ... [2020-07-20 16:22:30,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0a58ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:22:30, skipping insertion in model container [2020-07-20 16:22:30,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:22:30" (3/3) ... [2020-07-20 16:22:30,460 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2020-07-20 16:22:30,470 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 16:22:30,478 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 16:22:30,490 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 16:22:30,514 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 16:22:30,514 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 16:22:30,514 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 16:22:30,514 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 16:22:30,515 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 16:22:30,515 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 16:22:30,515 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 16:22:30,515 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 16:22:30,538 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-07-20 16:22:30,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 16:22:30,548 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:30,549 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 16:22:30,550 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:30,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:30,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1070296044, now seen corresponding path program 1 times [2020-07-20 16:22:30,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:30,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303303626] [2020-07-20 16:22:30,566 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:31,051 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:31,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:31,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 16:22:31,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:31,096 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 16:22:31,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:31,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303303626] [2020-07-20 16:22:31,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:31,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 16:22:31,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669402331] [2020-07-20 16:22:31,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 16:22:31,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:31,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 16:22:31,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:22:31,120 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2020-07-20 16:22:31,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:31,165 INFO L93 Difference]: Finished difference Result 272 states and 341 transitions. [2020-07-20 16:22:31,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 16:22:31,166 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-20 16:22:31,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:31,180 INFO L225 Difference]: With dead ends: 272 [2020-07-20 16:22:31,180 INFO L226 Difference]: Without dead ends: 136 [2020-07-20 16:22:31,185 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 16:22:31,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-07-20 16:22:31,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-07-20 16:22:31,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-07-20 16:22:31,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2020-07-20 16:22:31,245 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 46 [2020-07-20 16:22:31,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:31,246 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2020-07-20 16:22:31,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 16:22:31,246 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2020-07-20 16:22:31,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 16:22:31,251 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:31,251 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 16:22:31,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:31,467 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:31,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:31,469 INFO L82 PathProgramCache]: Analyzing trace with hash 689119196, now seen corresponding path program 1 times [2020-07-20 16:22:31,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:31,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388771877] [2020-07-20 16:22:31,470 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:31,963 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:31,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:31,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:22:31,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:32,016 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 16:22:32,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:32,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388771877] [2020-07-20 16:22:32,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:32,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:22:32,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353768374] [2020-07-20 16:22:32,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:22:32,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:32,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:22:32,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:22:32,026 INFO L87 Difference]: Start difference. First operand 136 states and 162 transitions. Second operand 3 states. [2020-07-20 16:22:32,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:32,053 INFO L93 Difference]: Finished difference Result 215 states and 255 transitions. [2020-07-20 16:22:32,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:22:32,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-20 16:22:32,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:32,056 INFO L225 Difference]: With dead ends: 215 [2020-07-20 16:22:32,057 INFO L226 Difference]: Without dead ends: 127 [2020-07-20 16:22:32,058 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 16:22:32,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-07-20 16:22:32,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2020-07-20 16:22:32,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-07-20 16:22:32,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 150 transitions. [2020-07-20 16:22:32,077 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 150 transitions. Word has length 47 [2020-07-20 16:22:32,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:32,077 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 150 transitions. [2020-07-20 16:22:32,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:22:32,077 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 150 transitions. [2020-07-20 16:22:32,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 16:22:32,080 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:32,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:32,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:32,294 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:32,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:32,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1659347680, now seen corresponding path program 1 times [2020-07-20 16:22:32,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:32,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277782376] [2020-07-20 16:22:32,295 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:32,719 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:22:32,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:32,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 16:22:32,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:32,754 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 16:22:32,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:32,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277782376] [2020-07-20 16:22:32,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:32,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:22:32,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6127881] [2020-07-20 16:22:32,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:22:32,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:32,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:22:32,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:22:32,760 INFO L87 Difference]: Start difference. First operand 127 states and 150 transitions. Second operand 3 states. [2020-07-20 16:22:32,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:32,826 INFO L93 Difference]: Finished difference Result 331 states and 402 transitions. [2020-07-20 16:22:32,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:22:32,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 16:22:32,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:32,831 INFO L225 Difference]: With dead ends: 331 [2020-07-20 16:22:32,832 INFO L226 Difference]: Without dead ends: 228 [2020-07-20 16:22:32,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:22:32,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-07-20 16:22:32,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 224. [2020-07-20 16:22:32,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-07-20 16:22:32,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 271 transitions. [2020-07-20 16:22:32,868 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 271 transitions. Word has length 51 [2020-07-20 16:22:32,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:32,869 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 271 transitions. [2020-07-20 16:22:32,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:22:32,869 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 271 transitions. [2020-07-20 16:22:32,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 16:22:32,872 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:32,873 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 16:22:33,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:33,089 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:33,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:33,090 INFO L82 PathProgramCache]: Analyzing trace with hash -2103406603, now seen corresponding path program 1 times [2020-07-20 16:22:33,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:33,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629772925] [2020-07-20 16:22:33,091 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:33,579 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:22:33,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:33,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:22:33,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:33,636 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 16:22:33,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:33,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629772925] [2020-07-20 16:22:33,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:33,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:22:33,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510123391] [2020-07-20 16:22:33,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:22:33,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:33,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:22:33,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:22:33,639 INFO L87 Difference]: Start difference. First operand 224 states and 271 transitions. Second operand 6 states. [2020-07-20 16:22:33,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:33,907 INFO L93 Difference]: Finished difference Result 548 states and 689 transitions. [2020-07-20 16:22:33,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:22:33,908 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-07-20 16:22:33,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:33,913 INFO L225 Difference]: With dead ends: 548 [2020-07-20 16:22:33,913 INFO L226 Difference]: Without dead ends: 348 [2020-07-20 16:22:33,916 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 16:22:33,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-07-20 16:22:33,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 338. [2020-07-20 16:22:33,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-07-20 16:22:33,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 409 transitions. [2020-07-20 16:22:33,963 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 409 transitions. Word has length 57 [2020-07-20 16:22:33,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:33,964 INFO L479 AbstractCegarLoop]: Abstraction has 338 states and 409 transitions. [2020-07-20 16:22:33,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:22:33,964 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 409 transitions. [2020-07-20 16:22:33,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-20 16:22:33,969 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:33,969 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:34,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:34,185 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:34,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:34,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1083117360, now seen corresponding path program 1 times [2020-07-20 16:22:34,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:34,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1908213085] [2020-07-20 16:22:34,187 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:34,385 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 16:22:34,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:34,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 16:22:34,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:34,432 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 16:22:34,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:34,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1908213085] [2020-07-20 16:22:34,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:34,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 16:22:34,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030406755] [2020-07-20 16:22:34,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 16:22:34,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:34,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 16:22:34,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:22:34,435 INFO L87 Difference]: Start difference. First operand 338 states and 409 transitions. Second operand 5 states. [2020-07-20 16:22:34,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:34,471 INFO L93 Difference]: Finished difference Result 666 states and 836 transitions. [2020-07-20 16:22:34,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 16:22:34,472 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2020-07-20 16:22:34,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:34,476 INFO L225 Difference]: With dead ends: 666 [2020-07-20 16:22:34,476 INFO L226 Difference]: Without dead ends: 352 [2020-07-20 16:22:34,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 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 16:22:34,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2020-07-20 16:22:34,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 346. [2020-07-20 16:22:34,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-07-20 16:22:34,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 417 transitions. [2020-07-20 16:22:34,506 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 417 transitions. Word has length 94 [2020-07-20 16:22:34,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:34,507 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 417 transitions. [2020-07-20 16:22:34,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 16:22:34,507 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 417 transitions. [2020-07-20 16:22:34,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-20 16:22:34,511 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:34,512 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:34,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:34,725 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:34,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:34,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1976603698, now seen corresponding path program 1 times [2020-07-20 16:22:34,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:34,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13470677] [2020-07-20 16:22:34,727 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:35,074 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:35,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:35,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 16:22:35,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:35,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 16:22:35,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:35,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13470677] [2020-07-20 16:22:35,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:35,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:22:35,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259778903] [2020-07-20 16:22:35,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:22:35,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:35,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:22:35,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:22:35,113 INFO L87 Difference]: Start difference. First operand 346 states and 417 transitions. Second operand 3 states. [2020-07-20 16:22:35,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:35,164 INFO L93 Difference]: Finished difference Result 966 states and 1247 transitions. [2020-07-20 16:22:35,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:22:35,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2020-07-20 16:22:35,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:35,172 INFO L225 Difference]: With dead ends: 966 [2020-07-20 16:22:35,172 INFO L226 Difference]: Without dead ends: 644 [2020-07-20 16:22:35,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:22:35,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-07-20 16:22:35,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 641. [2020-07-20 16:22:35,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2020-07-20 16:22:35,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 810 transitions. [2020-07-20 16:22:35,265 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 810 transitions. Word has length 94 [2020-07-20 16:22:35,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:35,266 INFO L479 AbstractCegarLoop]: Abstraction has 641 states and 810 transitions. [2020-07-20 16:22:35,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:22:35,266 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 810 transitions. [2020-07-20 16:22:35,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-20 16:22:35,271 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:35,271 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:35,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:35,485 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:35,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:35,486 INFO L82 PathProgramCache]: Analyzing trace with hash 330257705, now seen corresponding path program 1 times [2020-07-20 16:22:35,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:35,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469298752] [2020-07-20 16:22:35,488 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:35,763 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:35,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:35,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-20 16:22:35,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:35,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 16:22:35,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:35,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469298752] [2020-07-20 16:22:35,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:35,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:22:35,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159970895] [2020-07-20 16:22:35,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:22:35,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:35,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:22:35,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:22:35,817 INFO L87 Difference]: Start difference. First operand 641 states and 810 transitions. Second operand 6 states. [2020-07-20 16:22:36,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:36,889 INFO L93 Difference]: Finished difference Result 2129 states and 2882 transitions. [2020-07-20 16:22:36,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 16:22:36,890 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2020-07-20 16:22:36,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:36,906 INFO L225 Difference]: With dead ends: 2129 [2020-07-20 16:22:36,907 INFO L226 Difference]: Without dead ends: 1512 [2020-07-20 16:22:36,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 16:22:36,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2020-07-20 16:22:37,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1392. [2020-07-20 16:22:37,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1392 states. [2020-07-20 16:22:37,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1822 transitions. [2020-07-20 16:22:37,026 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1822 transitions. Word has length 98 [2020-07-20 16:22:37,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:37,028 INFO L479 AbstractCegarLoop]: Abstraction has 1392 states and 1822 transitions. [2020-07-20 16:22:37,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:22:37,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1822 transitions. [2020-07-20 16:22:37,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-20 16:22:37,034 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:37,034 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:37,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:37,249 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:37,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:37,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1090876719, now seen corresponding path program 1 times [2020-07-20 16:22:37,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:37,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671553344] [2020-07-20 16:22:37,251 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:37,689 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:37,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:37,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:22:37,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:37,730 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 16:22:37,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:37,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671553344] [2020-07-20 16:22:37,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:37,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:22:37,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071123572] [2020-07-20 16:22:37,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:22:37,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:37,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:22:37,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:22:37,733 INFO L87 Difference]: Start difference. First operand 1392 states and 1822 transitions. Second operand 6 states. [2020-07-20 16:22:37,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:37,820 INFO L93 Difference]: Finished difference Result 2792 states and 3790 transitions. [2020-07-20 16:22:37,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:22:37,820 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2020-07-20 16:22:37,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:37,830 INFO L225 Difference]: With dead ends: 2792 [2020-07-20 16:22:37,831 INFO L226 Difference]: Without dead ends: 1424 [2020-07-20 16:22:37,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 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 16:22:37,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2020-07-20 16:22:37,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1412. [2020-07-20 16:22:37,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1412 states. [2020-07-20 16:22:37,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 1846 transitions. [2020-07-20 16:22:37,917 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 1846 transitions. Word has length 94 [2020-07-20 16:22:37,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:37,917 INFO L479 AbstractCegarLoop]: Abstraction has 1412 states and 1846 transitions. [2020-07-20 16:22:37,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:22:37,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 1846 transitions. [2020-07-20 16:22:37,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-20 16:22:37,919 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:37,919 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:38,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:38,133 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:38,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:38,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1984363057, now seen corresponding path program 1 times [2020-07-20 16:22:38,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:38,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270908397] [2020-07-20 16:22:38,135 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:38,278 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 16:22:38,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:38,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 16:22:38,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:38,312 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 16:22:38,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:38,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270908397] [2020-07-20 16:22:38,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:38,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 16:22:38,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825417150] [2020-07-20 16:22:38,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 16:22:38,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:38,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 16:22:38,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:22:38,315 INFO L87 Difference]: Start difference. First operand 1412 states and 1846 transitions. Second operand 5 states. [2020-07-20 16:22:38,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:38,385 INFO L93 Difference]: Finished difference Result 2614 states and 3514 transitions. [2020-07-20 16:22:38,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 16:22:38,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2020-07-20 16:22:38,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:38,394 INFO L225 Difference]: With dead ends: 2614 [2020-07-20 16:22:38,394 INFO L226 Difference]: Without dead ends: 1226 [2020-07-20 16:22:38,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 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 16:22:38,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2020-07-20 16:22:38,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1226. [2020-07-20 16:22:38,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1226 states. [2020-07-20 16:22:38,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1576 transitions. [2020-07-20 16:22:38,495 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1576 transitions. Word has length 94 [2020-07-20 16:22:38,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:38,496 INFO L479 AbstractCegarLoop]: Abstraction has 1226 states and 1576 transitions. [2020-07-20 16:22:38,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 16:22:38,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1576 transitions. [2020-07-20 16:22:38,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-20 16:22:38,498 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:38,499 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:38,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:38,714 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:38,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:38,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1215984684, now seen corresponding path program 1 times [2020-07-20 16:22:38,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:38,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590515981] [2020-07-20 16:22:38,716 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:39,239 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:22:39,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:39,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-20 16:22:39,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:39,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:22:39,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:39,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590515981] [2020-07-20 16:22:39,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:39,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-20 16:22:39,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830507711] [2020-07-20 16:22:39,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-20 16:22:39,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:39,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-20 16:22:39,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-20 16:22:39,359 INFO L87 Difference]: Start difference. First operand 1226 states and 1576 transitions. Second operand 11 states. [2020-07-20 16:22:40,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:40,217 INFO L93 Difference]: Finished difference Result 3473 states and 4712 transitions. [2020-07-20 16:22:40,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-20 16:22:40,219 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-07-20 16:22:40,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:40,245 INFO L225 Difference]: With dead ends: 3473 [2020-07-20 16:22:40,246 INFO L226 Difference]: Without dead ends: 2271 [2020-07-20 16:22:40,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-20 16:22:40,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2020-07-20 16:22:40,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 2239. [2020-07-20 16:22:40,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2239 states. [2020-07-20 16:22:40,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 2912 transitions. [2020-07-20 16:22:40,473 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 2912 transitions. Word has length 98 [2020-07-20 16:22:40,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:40,475 INFO L479 AbstractCegarLoop]: Abstraction has 2239 states and 2912 transitions. [2020-07-20 16:22:40,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-20 16:22:40,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 2912 transitions. [2020-07-20 16:22:40,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-20 16:22:40,485 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:40,486 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-07-20 16:22:40,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:40,700 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:40,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:40,700 INFO L82 PathProgramCache]: Analyzing trace with hash 234889061, now seen corresponding path program 1 times [2020-07-20 16:22:40,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:40,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117098771] [2020-07-20 16:22:40,701 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:41,121 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:41,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:41,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 16:22:41,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:41,159 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-20 16:22:41,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:41,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117098771] [2020-07-20 16:22:41,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:41,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:22:41,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007174691] [2020-07-20 16:22:41,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:22:41,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:41,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:22:41,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:22:41,162 INFO L87 Difference]: Start difference. First operand 2239 states and 2912 transitions. Second operand 3 states. [2020-07-20 16:22:41,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:41,307 INFO L93 Difference]: Finished difference Result 2676 states and 3459 transitions. [2020-07-20 16:22:41,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:22:41,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2020-07-20 16:22:41,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:41,315 INFO L225 Difference]: With dead ends: 2676 [2020-07-20 16:22:41,315 INFO L226 Difference]: Without dead ends: 1078 [2020-07-20 16:22:41,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 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 16:22:41,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2020-07-20 16:22:41,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1078. [2020-07-20 16:22:41,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1078 states. [2020-07-20 16:22:41,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1363 transitions. [2020-07-20 16:22:41,384 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1363 transitions. Word has length 139 [2020-07-20 16:22:41,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:41,385 INFO L479 AbstractCegarLoop]: Abstraction has 1078 states and 1363 transitions. [2020-07-20 16:22:41,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:22:41,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1363 transitions. [2020-07-20 16:22:41,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-20 16:22:41,388 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:41,389 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 16:22:41,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:41,603 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:41,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:41,604 INFO L82 PathProgramCache]: Analyzing trace with hash -315871700, now seen corresponding path program 1 times [2020-07-20 16:22:41,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:41,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881707985] [2020-07-20 16:22:41,605 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:42,044 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:42,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:42,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 16:22:42,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:42,131 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-20 16:22:42,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:42,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881707985] [2020-07-20 16:22:42,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:42,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 16:22:42,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027695617] [2020-07-20 16:22:42,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 16:22:42,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:42,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 16:22:42,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:22:42,136 INFO L87 Difference]: Start difference. First operand 1078 states and 1363 transitions. Second operand 8 states. [2020-07-20 16:22:42,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:42,677 INFO L93 Difference]: Finished difference Result 2132 states and 2702 transitions. [2020-07-20 16:22:42,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 16:22:42,678 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 157 [2020-07-20 16:22:42,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:42,686 INFO L225 Difference]: With dead ends: 2132 [2020-07-20 16:22:42,686 INFO L226 Difference]: Without dead ends: 1078 [2020-07-20 16:22:42,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:22:42,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2020-07-20 16:22:42,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1078. [2020-07-20 16:22:42,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1078 states. [2020-07-20 16:22:42,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1324 transitions. [2020-07-20 16:22:42,754 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1324 transitions. Word has length 157 [2020-07-20 16:22:42,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:42,754 INFO L479 AbstractCegarLoop]: Abstraction has 1078 states and 1324 transitions. [2020-07-20 16:22:42,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 16:22:42,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1324 transitions. [2020-07-20 16:22:42,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-20 16:22:42,758 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:42,759 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:22:42,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:42,967 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:42,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:42,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1025619864, now seen corresponding path program 1 times [2020-07-20 16:22:42,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:42,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126941896] [2020-07-20 16:22:42,968 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 16:22:43,472 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:22:43,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:43,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 16:22:43,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:43,615 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-20 16:22:43,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:43,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126941896] [2020-07-20 16:22:43,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:43,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 16:22:43,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914583525] [2020-07-20 16:22:43,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 16:22:43,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:43,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 16:22:43,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:22:43,618 INFO L87 Difference]: Start difference. First operand 1078 states and 1324 transitions. Second operand 8 states. [2020-07-20 16:22:44,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:44,230 INFO L93 Difference]: Finished difference Result 2005 states and 2492 transitions. [2020-07-20 16:22:44,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 16:22:44,231 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-07-20 16:22:44,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:44,232 INFO L225 Difference]: With dead ends: 2005 [2020-07-20 16:22:44,232 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 16:22:44,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 145 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:22:44,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 16:22:44,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 16:22:44,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 16:22:44,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 16:22:44,240 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2020-07-20 16:22:44,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:44,240 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 16:22:44,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 16:22:44,240 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 16:22:44,240 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 16:22:44,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:44,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 16:22:47,272 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 12 [2020-07-20 16:22:47,686 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 33 [2020-07-20 16:22:47,894 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 22 [2020-07-20 16:22:48,364 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 41 [2020-07-20 16:22:48,794 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 28 [2020-07-20 16:22:49,164 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 21 [2020-07-20 16:22:49,270 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 21 [2020-07-20 16:22:49,450 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 15 [2020-07-20 16:22:49,673 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 25 [2020-07-20 16:22:49,955 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 29 [2020-07-20 16:22:50,363 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 36 [2020-07-20 16:22:50,635 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 18 [2020-07-20 16:22:51,179 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 19 [2020-07-20 16:22:51,257 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 16:22:51,257 INFO L268 CegarLoopResult]: For program point L576-2(lines 576 597) no Hoare annotation was computed. [2020-07-20 16:22:51,257 INFO L268 CegarLoopResult]: For program point L598(lines 575 599) no Hoare annotation was computed. [2020-07-20 16:22:51,258 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 551 606) no Hoare annotation was computed. [2020-07-20 16:22:51,258 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 551 606) no Hoare annotation was computed. [2020-07-20 16:22:51,258 INFO L268 CegarLoopResult]: For program point L582(lines 582 586) no Hoare annotation was computed. [2020-07-20 16:22:51,258 INFO L268 CegarLoopResult]: For program point L582-1(lines 582 586) no Hoare annotation was computed. [2020-07-20 16:22:51,258 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 551 606) no Hoare annotation was computed. [2020-07-20 16:22:51,258 INFO L268 CegarLoopResult]: For program point L639(lines 639 643) no Hoare annotation was computed. [2020-07-20 16:22:51,258 INFO L268 CegarLoopResult]: For program point L639-1(lines 639 643) no Hoare annotation was computed. [2020-07-20 16:22:51,258 INFO L268 CegarLoopResult]: For program point L634(line 634) no Hoare annotation was computed. [2020-07-20 16:22:51,259 INFO L268 CegarLoopResult]: For program point L633-2(lines 633 658) no Hoare annotation was computed. [2020-07-20 16:22:51,259 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 607 666) no Hoare annotation was computed. [2020-07-20 16:22:51,259 INFO L268 CegarLoopResult]: For program point L659(lines 632 660) no Hoare annotation was computed. [2020-07-20 16:22:51,259 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 607 666) no Hoare annotation was computed. [2020-07-20 16:22:51,259 INFO L268 CegarLoopResult]: For program point L652(line 652) no Hoare annotation was computed. [2020-07-20 16:22:51,259 INFO L268 CegarLoopResult]: For program point L652-1(line 652) no Hoare annotation was computed. [2020-07-20 16:22:51,259 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 607 666) no Hoare annotation was computed. [2020-07-20 16:22:51,260 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 99 105) the Hoare annotation is: true [2020-07-20 16:22:51,260 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 99 105) no Hoare annotation was computed. [2020-07-20 16:22:51,260 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 106 114) no Hoare annotation was computed. [2020-07-20 16:22:51,260 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 106 114) the Hoare annotation is: true [2020-07-20 16:22:51,260 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 106 114) no Hoare annotation was computed. [2020-07-20 16:22:51,260 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 937 959) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:22:51,260 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 937 959) no Hoare annotation was computed. [2020-07-20 16:22:51,261 INFO L264 CegarLoopResult]: At program point L949(line 949) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:22:51,261 INFO L264 CegarLoopResult]: At program point L949-1(line 949) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:22:51,261 INFO L268 CegarLoopResult]: For program point L947(lines 947 954) no Hoare annotation was computed. [2020-07-20 16:22:51,261 INFO L268 CegarLoopResult]: For program point L947-1(lines 947 954) no Hoare annotation was computed. [2020-07-20 16:22:51,261 INFO L268 CegarLoopResult]: For program point L945(line 945) no Hoare annotation was computed. [2020-07-20 16:22:51,261 INFO L264 CegarLoopResult]: At program point L944(line 944) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:22:51,262 INFO L264 CegarLoopResult]: At program point L943(line 943) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:22:51,262 INFO L264 CegarLoopResult]: At program point L943-1(line 943) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:22:51,262 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 937 959) no Hoare annotation was computed. [2020-07-20 16:22:51,262 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 896 919) no Hoare annotation was computed. [2020-07-20 16:22:51,262 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 896 919) no Hoare annotation was computed. [2020-07-20 16:22:51,262 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 896 919) no Hoare annotation was computed. [2020-07-20 16:22:51,262 INFO L268 CegarLoopResult]: For program point L914(line 914) no Hoare annotation was computed. [2020-07-20 16:22:51,263 INFO L268 CegarLoopResult]: For program point L913(line 913) no Hoare annotation was computed. [2020-07-20 16:22:51,263 INFO L268 CegarLoopResult]: For program point L912(line 912) no Hoare annotation was computed. [2020-07-20 16:22:51,263 INFO L268 CegarLoopResult]: For program point L911(line 911) no Hoare annotation was computed. [2020-07-20 16:22:51,263 INFO L268 CegarLoopResult]: For program point L910(line 910) no Hoare annotation was computed. [2020-07-20 16:22:51,263 INFO L268 CegarLoopResult]: For program point L909(line 909) no Hoare annotation was computed. [2020-07-20 16:22:51,263 INFO L268 CegarLoopResult]: For program point L908(line 908) no Hoare annotation was computed. [2020-07-20 16:22:51,263 INFO L268 CegarLoopResult]: For program point L907(line 907) no Hoare annotation was computed. [2020-07-20 16:22:51,263 INFO L268 CegarLoopResult]: For program point L906(line 906) no Hoare annotation was computed. [2020-07-20 16:22:51,263 INFO L268 CegarLoopResult]: For program point L905(line 905) no Hoare annotation was computed. [2020-07-20 16:22:51,264 INFO L268 CegarLoopResult]: For program point L904(line 904) no Hoare annotation was computed. [2020-07-20 16:22:51,264 INFO L268 CegarLoopResult]: For program point L903(line 903) no Hoare annotation was computed. [2020-07-20 16:22:51,264 INFO L268 CegarLoopResult]: For program point L902(line 902) no Hoare annotation was computed. [2020-07-20 16:22:51,264 INFO L268 CegarLoopResult]: For program point L901(line 901) no Hoare annotation was computed. [2020-07-20 16:22:51,264 INFO L264 CegarLoopResult]: At program point L275(line 275) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0))))) [2020-07-20 16:22:51,264 INFO L268 CegarLoopResult]: For program point L275-1(lines 256 280) no Hoare annotation was computed. [2020-07-20 16:22:51,264 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 256 280) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2))) [2020-07-20 16:22:51,265 INFO L264 CegarLoopResult]: At program point L270(line 270) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (and (= 0 processEnvironment__wrappee__methaneQuery_~tmp~1) (= 0 ~pumpRunning~0)))) (and (or .cse0 (not (= 0 ~methaneLevelCritical~0)) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2020-07-20 16:22:51,265 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 256 280) no Hoare annotation was computed. [2020-07-20 16:22:51,265 INFO L264 CegarLoopResult]: At program point L266(line 266) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (<= ~waterLevel~0 1))) (or .cse0 (and (<= 2 ~waterLevel~0) .cse3) (not (= 0 ~methaneLevelCritical~0))))) [2020-07-20 16:22:51,265 INFO L268 CegarLoopResult]: For program point L264(lines 264 272) no Hoare annotation was computed. [2020-07-20 16:22:51,265 INFO L264 CegarLoopResult]: At program point L262(line 262) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (= 0 ~pumpRunning~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) .cse1) (or .cse0 (not (= 0 ~methaneLevelCritical~0)) .cse1))) [2020-07-20 16:22:51,265 INFO L268 CegarLoopResult]: For program point L262-1(line 262) no Hoare annotation was computed. [2020-07-20 16:22:51,265 INFO L268 CegarLoopResult]: For program point L260(lines 260 277) no Hoare annotation was computed. [2020-07-20 16:22:51,266 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 415 429) no Hoare annotation was computed. [2020-07-20 16:22:51,266 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 415 429) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (= 0 ~pumpRunning~0)) (or .cse0 (= 0 ~systemActive~0) (not (= 0 |old(~systemActive~0)|))) (or (<= 1 ~systemActive~0) (not (<= 1 |old(~systemActive~0)|))))) [2020-07-20 16:22:51,266 INFO L264 CegarLoopResult]: At program point L421(line 421) the Hoare annotation is: (and (not (= 0 |old(~pumpRunning~0)|)) (or (<= 1 ~systemActive~0) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 16:22:51,266 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 415 429) no Hoare annotation was computed. [2020-07-20 16:22:51,266 INFO L268 CegarLoopResult]: For program point L419(lines 419 425) no Hoare annotation was computed. [2020-07-20 16:22:51,266 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 351 359) no Hoare annotation was computed. [2020-07-20 16:22:51,266 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 351 359) the Hoare annotation is: true [2020-07-20 16:22:51,266 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 351 359) no Hoare annotation was computed. [2020-07-20 16:22:51,267 INFO L268 CegarLoopResult]: For program point L379(lines 379 387) no Hoare annotation was computed. [2020-07-20 16:22:51,267 INFO L268 CegarLoopResult]: For program point L379-2(lines 379 387) no Hoare annotation was computed. [2020-07-20 16:22:51,267 INFO L268 CegarLoopResult]: For program point L367(lines 367 375) no Hoare annotation was computed. [2020-07-20 16:22:51,267 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 360 395) no Hoare annotation was computed. [2020-07-20 16:22:51,267 INFO L268 CegarLoopResult]: For program point L367-2(lines 367 375) no Hoare annotation was computed. [2020-07-20 16:22:51,267 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 360 395) no Hoare annotation was computed. [2020-07-20 16:22:51,267 INFO L268 CegarLoopResult]: For program point L390(line 390) no Hoare annotation was computed. [2020-07-20 16:22:51,267 INFO L268 CegarLoopResult]: For program point L390-1(line 390) no Hoare annotation was computed. [2020-07-20 16:22:51,267 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 360 395) no Hoare annotation was computed. [2020-07-20 16:22:51,268 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 92 98) no Hoare annotation was computed. [2020-07-20 16:22:51,268 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 92 98) the Hoare annotation is: true [2020-07-20 16:22:51,268 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 505 550) no Hoare annotation was computed. [2020-07-20 16:22:51,268 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 505 550) no Hoare annotation was computed. [2020-07-20 16:22:51,268 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 505 550) no Hoare annotation was computed. [2020-07-20 16:22:51,268 INFO L268 CegarLoopResult]: For program point L832(lines 832 852) no Hoare annotation was computed. [2020-07-20 16:22:51,268 INFO L268 CegarLoopResult]: For program point L832-1(lines 832 852) no Hoare annotation was computed. [2020-07-20 16:22:51,268 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 818 863) no Hoare annotation was computed. [2020-07-20 16:22:51,268 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 818 863) no Hoare annotation was computed. [2020-07-20 16:22:51,268 INFO L268 CegarLoopResult]: For program point L838(lines 838 845) no Hoare annotation was computed. [2020-07-20 16:22:51,269 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 818 863) no Hoare annotation was computed. [2020-07-20 16:22:51,269 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 927 936) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:22:51,269 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 927 936) no Hoare annotation was computed. [2020-07-20 16:22:51,269 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 927 936) no Hoare annotation was computed. [2020-07-20 16:22:51,269 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 340 350) the Hoare annotation is: true [2020-07-20 16:22:51,269 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 340 350) no Hoare annotation was computed. [2020-07-20 16:22:51,269 INFO L271 CegarLoopResult]: At program point L345(line 345) the Hoare annotation is: true [2020-07-20 16:22:51,269 INFO L268 CegarLoopResult]: For program point L345-1(line 345) no Hoare annotation was computed. [2020-07-20 16:22:51,269 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 340 350) no Hoare annotation was computed. [2020-07-20 16:22:51,269 INFO L271 CegarLoopResult]: At program point deactivatePumpENTRY(lines 332 339) the Hoare annotation is: true [2020-07-20 16:22:51,270 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 332 339) no Hoare annotation was computed. [2020-07-20 16:22:51,270 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 332 339) no Hoare annotation was computed. [2020-07-20 16:22:51,270 INFO L268 CegarLoopResult]: For program point L205(lines 205 211) no Hoare annotation was computed. [2020-07-20 16:22:51,270 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 201 214) no Hoare annotation was computed. [2020-07-20 16:22:51,270 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 201 214) the Hoare annotation is: true [2020-07-20 16:22:51,270 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 201 214) no Hoare annotation was computed. [2020-07-20 16:22:51,270 INFO L264 CegarLoopResult]: At program point L288(line 288) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0))))) [2020-07-20 16:22:51,270 INFO L268 CegarLoopResult]: For program point L288-1(line 288) no Hoare annotation was computed. [2020-07-20 16:22:51,270 INFO L268 CegarLoopResult]: For program point L286(lines 286 303) no Hoare annotation was computed. [2020-07-20 16:22:51,270 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 282 306) no Hoare annotation was computed. [2020-07-20 16:22:51,270 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 282 306) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2))) [2020-07-20 16:22:51,271 INFO L264 CegarLoopResult]: At program point L301(line 301) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (= 0 ~pumpRunning~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (not (= 0 ~methaneLevelCritical~0)) .cse1))) [2020-07-20 16:22:51,271 INFO L268 CegarLoopResult]: For program point L301-1(lines 282 306) no Hoare annotation was computed. [2020-07-20 16:22:51,271 INFO L264 CegarLoopResult]: At program point L296(line 296) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 ~methaneLevelCritical~0))))) [2020-07-20 16:22:51,271 INFO L264 CegarLoopResult]: At program point L292(line 292) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 (<= ~methaneLevelCritical~0 processEnvironment_~tmp~2)))) [2020-07-20 16:22:51,271 INFO L268 CegarLoopResult]: For program point L290(lines 290 298) no Hoare annotation was computed. [2020-07-20 16:22:51,271 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 248 254) no Hoare annotation was computed. [2020-07-20 16:22:51,271 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 248 254) the Hoare annotation is: true [2020-07-20 16:22:51,271 INFO L264 CegarLoopResult]: At program point testENTRY(lines 432 497) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:22:51,271 INFO L268 CegarLoopResult]: For program point L444(lines 444 448) no Hoare annotation was computed. [2020-07-20 16:22:51,271 INFO L268 CegarLoopResult]: For program point testFINAL(lines 432 497) no Hoare annotation was computed. [2020-07-20 16:22:51,271 INFO L264 CegarLoopResult]: At program point L490(lines 441 491) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:22:51,271 INFO L264 CegarLoopResult]: At program point L480(line 480) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~pumpRunning~0) .cse0) (not (<= 1 |old(~waterLevel~0)|)) (and .cse0 (<= 1 ~systemActive~0)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 16:22:51,272 INFO L268 CegarLoopResult]: For program point L478(lines 478 484) no Hoare annotation was computed. [2020-07-20 16:22:51,272 INFO L264 CegarLoopResult]: At program point L478-1(lines 472 485) the Hoare annotation is: (let ((.cse1 (<= 1 ~systemActive~0)) (.cse0 (<= test_~splverifierCounter~0 0))) (or (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and (= 0 ~systemActive~0) (= 0 ~pumpRunning~0) .cse0))) [2020-07-20 16:22:51,272 INFO L268 CegarLoopResult]: For program point L443(lines 442 489) no Hoare annotation was computed. [2020-07-20 16:22:51,272 INFO L268 CegarLoopResult]: For program point L472(lines 472 485) no Hoare annotation was computed. [2020-07-20 16:22:51,272 INFO L264 CegarLoopResult]: At program point L464(line 464) the Hoare annotation is: (let ((.cse1 (<= 1 ~systemActive~0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse0 (<= test_~splverifierCounter~0 0))) (or (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (<= 1 ~methaneLevelCritical~0) .cse2 .cse0 .cse1) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and (= 0 ~systemActive~0) .cse2 .cse0))) [2020-07-20 16:22:51,272 INFO L268 CegarLoopResult]: For program point L462(lines 462 468) no Hoare annotation was computed. [2020-07-20 16:22:51,272 INFO L268 CegarLoopResult]: For program point L462-1(lines 462 468) no Hoare annotation was computed. [2020-07-20 16:22:51,272 INFO L264 CegarLoopResult]: At program point L487(lines 442 489) the Hoare annotation is: (let ((.cse1 (<= 1 ~systemActive~0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse0 (<= test_~splverifierCounter~0 0))) (or (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (<= 1 ~methaneLevelCritical~0) .cse2 .cse0 .cse1) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and (= 0 ~systemActive~0) .cse2 .cse0))) [2020-07-20 16:22:51,272 INFO L264 CegarLoopResult]: At program point L454(line 454) the Hoare annotation is: (let ((.cse1 (<= 1 ~systemActive~0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse0 (<= test_~splverifierCounter~0 0))) (or (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (<= 1 ~methaneLevelCritical~0) .cse2 .cse0 .cse1) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and (= 0 ~systemActive~0) .cse2 .cse0))) [2020-07-20 16:22:51,272 INFO L268 CegarLoopResult]: For program point L452(lines 452 458) no Hoare annotation was computed. [2020-07-20 16:22:51,272 INFO L268 CegarLoopResult]: For program point L452-1(lines 452 458) no Hoare annotation was computed. [2020-07-20 16:22:51,273 INFO L268 CegarLoopResult]: For program point testEXIT(lines 432 497) no Hoare annotation was computed. [2020-07-20 16:22:51,273 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 772 817) no Hoare annotation was computed. [2020-07-20 16:22:51,273 INFO L268 CegarLoopResult]: For program point L792(lines 792 799) no Hoare annotation was computed. [2020-07-20 16:22:51,273 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 772 817) no Hoare annotation was computed. [2020-07-20 16:22:51,273 INFO L268 CegarLoopResult]: For program point L786(lines 786 806) no Hoare annotation was computed. [2020-07-20 16:22:51,273 INFO L268 CegarLoopResult]: For program point L786-1(lines 786 806) no Hoare annotation was computed. [2020-07-20 16:22:51,273 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 772 817) no Hoare annotation was computed. [2020-07-20 16:22:51,273 INFO L264 CegarLoopResult]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 307 314) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 ~methaneLevelCritical~0)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-20 16:22:51,273 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 307 314) no Hoare annotation was computed. [2020-07-20 16:22:51,273 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 307 314) no Hoare annotation was computed. [2020-07-20 16:22:51,273 INFO L268 CegarLoopResult]: For program point L177(lines 177 185) no Hoare annotation was computed. [2020-07-20 16:22:51,274 INFO L268 CegarLoopResult]: For program point L177-2(lines 177 185) no Hoare annotation was computed. [2020-07-20 16:22:51,274 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 169 191) no Hoare annotation was computed. [2020-07-20 16:22:51,274 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 169 191) no Hoare annotation was computed. [2020-07-20 16:22:51,274 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 169 191) no Hoare annotation was computed. [2020-07-20 16:22:51,274 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 82 91) no Hoare annotation was computed. [2020-07-20 16:22:51,274 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 82 91) no Hoare annotation was computed. [2020-07-20 16:22:51,274 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 82 91) no Hoare annotation was computed. [2020-07-20 16:22:51,274 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 669 771) no Hoare annotation was computed. [2020-07-20 16:22:51,274 INFO L268 CegarLoopResult]: For program point L698(lines 698 714) no Hoare annotation was computed. [2020-07-20 16:22:51,275 INFO L268 CegarLoopResult]: For program point L758(lines 758 765) no Hoare annotation was computed. [2020-07-20 16:22:51,275 INFO L268 CegarLoopResult]: For program point L719(lines 718 738) no Hoare annotation was computed. [2020-07-20 16:22:51,275 INFO L268 CegarLoopResult]: For program point L750(line 750) no Hoare annotation was computed. [2020-07-20 16:22:51,275 INFO L268 CegarLoopResult]: For program point L750-1(line 750) no Hoare annotation was computed. [2020-07-20 16:22:51,275 INFO L268 CegarLoopResult]: For program point L715(lines 715 756) no Hoare annotation was computed. [2020-07-20 16:22:51,275 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 669 771) no Hoare annotation was computed. [2020-07-20 16:22:51,275 INFO L268 CegarLoopResult]: For program point L734(line 734) no Hoare annotation was computed. [2020-07-20 16:22:51,275 INFO L268 CegarLoopResult]: For program point L734-1(line 734) no Hoare annotation was computed. [2020-07-20 16:22:51,275 INFO L268 CegarLoopResult]: For program point L693(lines 693 697) no Hoare annotation was computed. [2020-07-20 16:22:51,275 INFO L268 CegarLoopResult]: For program point L757(lines 757 768) no Hoare annotation was computed. [2020-07-20 16:22:51,276 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 669 771) no Hoare annotation was computed. [2020-07-20 16:22:51,276 INFO L268 CegarLoopResult]: For program point L720(lines 720 724) no Hoare annotation was computed. [2020-07-20 16:22:51,276 INFO L268 CegarLoopResult]: For program point L718-2(lines 718 738) no Hoare annotation was computed. [2020-07-20 16:22:51,276 INFO L268 CegarLoopResult]: For program point L739(lines 717 740) no Hoare annotation was computed. [2020-07-20 16:22:51,276 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:22:51,276 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (<= |old(~waterLevel~0)| ~waterLevel~0) [2020-07-20 16:22:51,276 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:22:51,276 INFO L264 CegarLoopResult]: At program point L320(line 320) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-20 16:22:51,276 INFO L268 CegarLoopResult]: For program point L320-1(line 320) no Hoare annotation was computed. [2020-07-20 16:22:51,277 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 315 331) no Hoare annotation was computed. [2020-07-20 16:22:51,277 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 315 331) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-20 16:22:51,277 INFO L264 CegarLoopResult]: At program point L326(line 326) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 (and (= ~methaneLevelCritical~0 activatePump_~tmp~3) (= 0 ~pumpRunning~0)) .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2))) [2020-07-20 16:22:51,277 INFO L268 CegarLoopResult]: For program point L326-1(lines 315 331) no Hoare annotation was computed. [2020-07-20 16:22:51,277 INFO L268 CegarLoopResult]: For program point L322(lines 322 328) no Hoare annotation was computed. [2020-07-20 16:22:51,277 INFO L268 CegarLoopResult]: For program point getWaterLevelENTRY(lines 192 200) no Hoare annotation was computed. [2020-07-20 16:22:51,277 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 192 200) no Hoare annotation was computed. [2020-07-20 16:22:51,277 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 192 200) no Hoare annotation was computed. [2020-07-20 16:22:51,278 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 396 414) no Hoare annotation was computed. [2020-07-20 16:22:51,278 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 396 414) the Hoare annotation is: true [2020-07-20 16:22:51,278 INFO L268 CegarLoopResult]: For program point L405(lines 405 409) no Hoare annotation was computed. [2020-07-20 16:22:51,278 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 396 414) no Hoare annotation was computed. [2020-07-20 16:22:51,278 INFO L271 CegarLoopResult]: At program point L403(line 403) the Hoare annotation is: true [2020-07-20 16:22:51,278 INFO L268 CegarLoopResult]: For program point L405-2(lines 405 409) no Hoare annotation was computed. [2020-07-20 16:22:51,278 INFO L268 CegarLoopResult]: For program point L403-1(line 403) no Hoare annotation was computed. [2020-07-20 16:22:51,278 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 148 159) the Hoare annotation is: (let ((.cse1 (not (= 0 ~pumpRunning~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (= 0 ~methaneLevelCritical~0)) (.cse3 (not (= |old(~methaneLevelCritical~0)| 0)))) (and (or .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 (not (<= 1 |old(~methaneLevelCritical~0)|))) (or .cse2 (not (= 0 ~systemActive~0)) .cse3 .cse1) (or .cse0 .cse2 .cse3))) [2020-07-20 16:22:51,278 INFO L268 CegarLoopResult]: For program point L152-1(lines 148 159) no Hoare annotation was computed. [2020-07-20 16:22:51,279 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 148 159) no Hoare annotation was computed. [2020-07-20 16:22:51,279 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:22:51,279 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-20 16:22:51,279 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:22:51,279 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 160 168) the Hoare annotation is: true [2020-07-20 16:22:51,279 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 160 168) no Hoare annotation was computed. [2020-07-20 16:22:51,279 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 160 168) no Hoare annotation was computed. [2020-07-20 16:22:51,279 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 224 247) the Hoare annotation is: (let ((.cse1 (not (= 0 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse8 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (= 0 ~pumpRunning~0)) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse3 (<= ~waterLevel~0 1)) (.cse6 (not (<= 1 ~systemActive~0))) (.cse7 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and .cse4 .cse5) .cse1 .cse2) (or .cse6 .cse7 .cse2 .cse4) (or .cse0 .cse6 .cse8 .cse3) (or .cse6 .cse8 .cse5) (or .cse6 .cse2 .cse8 .cse4) (or .cse0 .cse6 .cse7 .cse3) (or .cse6 .cse7 .cse5))) [2020-07-20 16:22:51,280 INFO L264 CegarLoopResult]: At program point L237(line 237) the Hoare annotation is: (let ((.cse2 (and (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse7 (<= 1 ~waterLevel~0)) (.cse8 (not (<= 2 |old(~waterLevel~0)|))) (.cse4 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (<= ~waterLevel~0 1))) (and (or (not (= 0 ~systemActive~0)) .cse0) (or .cse1 .cse2 .cse0 .cse3) (or .cse4 .cse1 .cse3 .cse5) (or .cse1 .cse6 .cse7 .cse8) (or .cse1 .cse6 .cse2 .cse0) (or .cse1 .cse3 .cse7 .cse8) (or .cse4 .cse1 .cse6 .cse5))) [2020-07-20 16:22:51,280 INFO L264 CegarLoopResult]: At program point L235(lines 235 241) the Hoare annotation is: (let ((.cse8 (= 0 ~pumpRunning~0)) (.cse9 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (not (= 0 ~systemActive~0))) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse3 (<= ~waterLevel~0 1)) (.cse4 (and .cse8 .cse9)) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse7 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (not (<= 1 ~systemActive~0))) (.cse6 (not (= 0 ~methaneLevelCritical~0))) (.cse11 (<= 1 ~waterLevel~0)) (.cse10 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse2) (or .cse0 .cse5 .cse6 .cse3) (or .cse0 .cse5 .cse7 (and .cse8 .cse3)) (or .cse5 (and (<= 2 ~waterLevel~0) .cse9) .cse4 .cse2 .cse6) (or .cse5 .cse7 .cse2 .cse9) (or .cse5 .cse7 .cse10 (and .cse11 .cse8)) (or .cse5 .cse6 .cse11 .cse10)))) [2020-07-20 16:22:51,280 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 224 247) no Hoare annotation was computed. [2020-07-20 16:22:51,280 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 224 247) no Hoare annotation was computed. [2020-07-20 16:22:51,280 INFO L264 CegarLoopResult]: At program point L230(line 230) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (not (<= |old(~waterLevel~0)| 1))) (.cse5 (<= ~waterLevel~0 1)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2) (or (not (= 0 ~systemActive~0)) .cse2) (or .cse3 .cse0 .cse4 .cse5) (or .cse0 .cse4 .cse6) (or .cse0 .cse2 .cse4) (or .cse3 .cse0 .cse1 .cse5) (or .cse0 .cse1 .cse6))) [2020-07-20 16:22:51,281 INFO L268 CegarLoopResult]: For program point L228(lines 227 246) no Hoare annotation was computed. [2020-07-20 16:22:51,281 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 866 895) no Hoare annotation was computed. [2020-07-20 16:22:51,281 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 866 895) the Hoare annotation is: true [2020-07-20 16:22:51,281 INFO L271 CegarLoopResult]: At program point L891(lines 866 895) the Hoare annotation is: true [2020-07-20 16:22:51,281 INFO L268 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-07-20 16:22:51,281 INFO L268 CegarLoopResult]: For program point L880(lines 880 884) no Hoare annotation was computed. [2020-07-20 16:22:51,281 INFO L271 CegarLoopResult]: At program point L880-1(lines 880 884) the Hoare annotation is: true [2020-07-20 16:22:51,281 INFO L268 CegarLoopResult]: For program point L877(line 877) no Hoare annotation was computed. [2020-07-20 16:22:51,281 INFO L271 CegarLoopResult]: At program point L876-2(lines 876 890) the Hoare annotation is: true [2020-07-20 16:22:51,282 INFO L271 CegarLoopResult]: At program point L872(line 872) the Hoare annotation is: true [2020-07-20 16:22:51,282 INFO L268 CegarLoopResult]: For program point L872-1(line 872) no Hoare annotation was computed. [2020-07-20 16:22:51,282 INFO L268 CegarLoopResult]: For program point L128-1(lines 124 135) no Hoare annotation was computed. [2020-07-20 16:22:51,282 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 124 135) the Hoare annotation is: (let ((.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse3 (<= ~waterLevel~0 1)) (.cse1 (not (<= 1 ~systemActive~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse4) (or .cse0 .cse1 .cse5 .cse3) (or .cse1 .cse5 .cse4))) [2020-07-20 16:22:51,282 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 124 135) no Hoare annotation was computed. [2020-07-20 16:22:51,282 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 920 926) no Hoare annotation was computed. [2020-07-20 16:22:51,282 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 920 926) the Hoare annotation is: true [2020-07-20 16:22:51,283 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:22:51,283 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-20 16:22:51,283 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 16:22:51,283 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:22:51,283 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 136 147) no Hoare annotation was computed. [2020-07-20 16:22:51,283 INFO L268 CegarLoopResult]: For program point L140-1(lines 136 147) no Hoare annotation was computed. [2020-07-20 16:22:51,283 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 136 147) the Hoare annotation is: (let ((.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (<= |old(~waterLevel~0)| 1))) (.cse7 (not (= 0 ~systemActive~0))) (.cse6 (<= ~waterLevel~0 1)) (.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse6) (or .cse0 .cse5 .cse3) (or .cse7 .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse6 .cse2) (or .cse4 .cse7 .cse6 .cse2))) [2020-07-20 16:22:51,283 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 69 76) no Hoare annotation was computed. [2020-07-20 16:22:51,284 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2020-07-20 16:22:51,284 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 69 76) the Hoare annotation is: true [2020-07-20 16:22:51,284 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 69 76) no Hoare annotation was computed. [2020-07-20 16:22:51,284 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 43 67) the Hoare annotation is: true [2020-07-20 16:22:51,284 INFO L264 CegarLoopResult]: At program point L57(line 57) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (not (= 0 ~methaneLevelCritical~0))) (or (not (= 0 ~systemActive~0)) .cse1))) [2020-07-20 16:22:51,284 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification1_spec__1EXIT(lines 43 67) no Hoare annotation was computed. [2020-07-20 16:22:51,284 INFO L268 CegarLoopResult]: For program point L55(lines 55 61) no Hoare annotation was computed. [2020-07-20 16:22:51,285 INFO L264 CegarLoopResult]: At program point L53(line 53) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~systemActive~0)) .cse0 (not (= 0 ~pumpRunning~0))) (or (not (<= 1 ~systemActive~0)) .cse0))) [2020-07-20 16:22:51,285 INFO L268 CegarLoopResult]: For program point L53-1(line 53) no Hoare annotation was computed. [2020-07-20 16:22:51,285 INFO L268 CegarLoopResult]: For program point L51(lines 51 64) no Hoare annotation was computed. [2020-07-20 16:22:51,285 INFO L268 CegarLoopResult]: For program point L51-1(lines 43 67) no Hoare annotation was computed. [2020-07-20 16:22:51,285 INFO L271 CegarLoopResult]: At program point L49(line 49) the Hoare annotation is: true [2020-07-20 16:22:51,285 INFO L268 CegarLoopResult]: For program point L49-1(line 49) no Hoare annotation was computed. [2020-07-20 16:22:51,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:22:51 BoogieIcfgContainer [2020-07-20 16:22:51,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 16:22:51,307 INFO L168 Benchmark]: Toolchain (without parser) took 22914.19 ms. Allocated memory was 146.8 MB in the beginning and 429.9 MB in the end (delta: 283.1 MB). Free memory was 103.7 MB in the beginning and 228.1 MB in the end (delta: -124.5 MB). Peak memory consumption was 291.0 MB. Max. memory is 7.1 GB. [2020-07-20 16:22:51,313 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 16:22:51,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.56 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 103.2 MB in the beginning and 173.2 MB in the end (delta: -69.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-07-20 16:22:51,319 INFO L168 Benchmark]: Boogie Preprocessor took 108.18 ms. Allocated memory is still 207.6 MB. Free memory was 173.2 MB in the beginning and 169.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-20 16:22:51,320 INFO L168 Benchmark]: RCFGBuilder took 1171.64 ms. Allocated memory was 207.6 MB in the beginning and 231.7 MB in the end (delta: 24.1 MB). Free memory was 169.2 MB in the beginning and 187.0 MB in the end (delta: -17.8 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. [2020-07-20 16:22:51,320 INFO L168 Benchmark]: TraceAbstraction took 20852.30 ms. Allocated memory was 231.7 MB in the beginning and 429.9 MB in the end (delta: 198.2 MB). Free memory was 185.7 MB in the beginning and 228.1 MB in the end (delta: -42.4 MB). Peak memory consumption was 288.1 MB. Max. memory is 7.1 GB. [2020-07-20 16:22:51,325 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 776.56 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 103.2 MB in the beginning and 173.2 MB in the end (delta: -69.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.18 ms. Allocated memory is still 207.6 MB. Free memory was 173.2 MB in the beginning and 169.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1171.64 ms. Allocated memory was 207.6 MB in the beginning and 231.7 MB in the end (delta: 24.1 MB). Free memory was 169.2 MB in the beginning and 187.0 MB in the end (delta: -17.8 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20852.30 ms. Allocated memory was 231.7 MB in the beginning and 429.9 MB in the end (delta: 198.2 MB). Free memory was 185.7 MB in the beginning and 228.1 MB in the end (delta: -42.4 MB). Peak memory consumption was 288.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 73]: 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: 442]: Loop Invariant Derived loop invariant: ((((((((0 == methaneLevelCritical && splverifierCounter <= 0) && 1 <= systemActive) || (((1 <= methaneLevelCritical && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive)) || !(\old(waterLevel) <= 1)) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive))) || ((0 == systemActive && 0 == pumpRunning) && splverifierCounter <= 0) - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 238 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.9s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2320 SDtfs, 1006 SDslu, 5524 SDs, 0 SdLazy, 1595 SolverSat, 269 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1221 GetRequests, 1162 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2239occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 187 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 63 LocationsWithAnnotation, 4754 PreInvPairs, 5007 NumberOfFragments, 1847 HoareAnnotationTreeSize, 4754 FomulaSimplifications, 3222 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 63 FomulaSimplificationsInter, 15012 FormulaSimplificationTreeSizeReductionInter, 4.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1222 NumberOfCodeBlocks, 923 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 1209 ConstructedInterpolants, 0 QuantifiedInterpolants, 191299 SizeOfPredicates, 31 NumberOfNonLiveVariables, 8735 ConjunctsInSsa, 116 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 147/147 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...