/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:54:04,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:54:04,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:54:04,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:54:04,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:54:04,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:54:04,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:54:04,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:54:04,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:54:04,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:54:04,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:54:04,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:54:04,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:54:04,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:54:04,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:54:04,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:54:04,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:54:04,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:54:04,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:54:04,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:54:04,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:54:04,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:54:04,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:54:04,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:54:04,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:54:04,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:54:04,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:54:04,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:54:04,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:54:04,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:54:04,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:54:04,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:54:04,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:54:04,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:54:04,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:54:04,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:54:04,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:54:04,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:54:04,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:54:04,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:54:04,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:54:04,209 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 12:54:04,223 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:54:04,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:54:04,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:54:04,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:54:04,225 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:54:04,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:54:04,226 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:54:04,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:54:04,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:54:04,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:54:04,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:54:04,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:54:04,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:54:04,227 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:54:04,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:54:04,227 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:54:04,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:54:04,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:54:04,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:54:04,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:54:04,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:54:04,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:54:04,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:54:04,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:54:04,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:54:04,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:54:04,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:04,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:54:04,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:54:04,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 12:54:04,576 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:54:04,589 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:54:04,593 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:54:04,594 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:54:04,594 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:54:04,595 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2020-07-21 12:54:04,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9e6cd19b/f2ac01a9085945038ca5fe83aa346ca9/FLAG18555eb40 [2020-07-21 12:54:05,122 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:54:05,124 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2020-07-21 12:54:05,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9e6cd19b/f2ac01a9085945038ca5fe83aa346ca9/FLAG18555eb40 [2020-07-21 12:54:05,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9e6cd19b/f2ac01a9085945038ca5fe83aa346ca9 [2020-07-21 12:54:05,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:54:05,496 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:54:05,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:54:05,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:54:05,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:54:05,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:54:05" (1/1) ... [2020-07-21 12:54:05,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f146373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:05, skipping insertion in model container [2020-07-21 12:54:05,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:54:05" (1/1) ... [2020-07-21 12:54:05,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:54:05,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:54:05,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:54:05,996 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:54:06,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:54:06,191 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:54:06,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:06 WrapperNode [2020-07-21 12:54:06,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:54:06,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:54:06,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:54:06,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:54:06,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:06" (1/1) ... [2020-07-21 12:54:06,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:06" (1/1) ... [2020-07-21 12:54:06,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:06" (1/1) ... [2020-07-21 12:54:06,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:06" (1/1) ... [2020-07-21 12:54:06,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:06" (1/1) ... [2020-07-21 12:54:06,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:06" (1/1) ... [2020-07-21 12:54:06,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:06" (1/1) ... [2020-07-21 12:54:06,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:54:06,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:54:06,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:54:06,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:54:06,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:54:06,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:54:06,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:54:06,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:54:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:54:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:54:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:54:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:54:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:54:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:54:06,336 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 12:54:06,336 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:54:06,336 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:54:06,336 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:54:06,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:54:06,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:54:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:54:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 12:54:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 12:54:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 12:54:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:54:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:54:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:54:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:54:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:54:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:54:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:54:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:54:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:54:06,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:54:06,339 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:54:06,339 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:54:06,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-07-21 12:54:06,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-07-21 12:54:06,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-07-21 12:54:06,339 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:54:06,340 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:54:06,340 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:54:06,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:54:06,340 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:54:06,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:54:06,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 12:54:06,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:54:06,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:54:06,341 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:54:06,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:54:06,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:54:06,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:54:06,341 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:54:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:54:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:54:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:54:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:54:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 12:54:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:54:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:54:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:54:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:54:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:54:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 12:54:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 12:54:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-07-21 12:54:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-07-21 12:54:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:54:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 12:54:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 12:54:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:54:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:54:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:54:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:54:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:54:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:54:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:54:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:54:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:54:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:54:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:54:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:54:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:54:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:54:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:54:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:54:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:54:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:54:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:54:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:54:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:54:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:54:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:54:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:54:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-07-21 12:54:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:54:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:54:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:54:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:54:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:54:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:54:07,319 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:54:07,319 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:54:07,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:54:07 BoogieIcfgContainer [2020-07-21 12:54:07,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:54:07,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:54:07,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:54:07,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:54:07,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:54:05" (1/3) ... [2020-07-21 12:54:07,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb4bcd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:54:07, skipping insertion in model container [2020-07-21 12:54:07,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:54:06" (2/3) ... [2020-07-21 12:54:07,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb4bcd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:54:07, skipping insertion in model container [2020-07-21 12:54:07,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:54:07" (3/3) ... [2020-07-21 12:54:07,333 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2020-07-21 12:54:07,343 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:54:07,351 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:54:07,364 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:54:07,386 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:54:07,386 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:54:07,387 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:54:07,387 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:54:07,387 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:54:07,387 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:54:07,387 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:54:07,388 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:54:07,409 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-07-21 12:54:07,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-21 12:54:07,419 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:07,420 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] [2020-07-21 12:54:07,420 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:07,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:07,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1424451371, now seen corresponding path program 1 times [2020-07-21 12:54:07,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:07,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251795270] [2020-07-21 12:54:07,436 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:07,810 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:07,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:07,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:54:07,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:07,867 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 12:54:07,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:07,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251795270] [2020-07-21 12:54:07,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:07,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:54:07,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009868199] [2020-07-21 12:54:07,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:54:07,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:07,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:54:07,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:54:07,899 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 2 states. [2020-07-21 12:54:07,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:07,952 INFO L93 Difference]: Finished difference Result 252 states and 311 transitions. [2020-07-21 12:54:07,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:54:07,954 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2020-07-21 12:54:07,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:07,970 INFO L225 Difference]: With dead ends: 252 [2020-07-21 12:54:07,971 INFO L226 Difference]: Without dead ends: 128 [2020-07-21 12:54:07,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:54:07,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-07-21 12:54:08,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-07-21 12:54:08,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-21 12:54:08,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2020-07-21 12:54:08,041 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 59 [2020-07-21 12:54:08,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:08,042 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2020-07-21 12:54:08,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:54:08,042 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2020-07-21 12:54:08,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-21 12:54:08,046 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:08,046 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] [2020-07-21 12:54:08,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:08,261 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:08,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:08,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1343962066, now seen corresponding path program 1 times [2020-07-21 12:54:08,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:08,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133276018] [2020-07-21 12:54:08,262 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:08,579 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:08,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:08,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:54:08,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:08,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 12:54:08,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:08,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133276018] [2020-07-21 12:54:08,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:08,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:54:08,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6423239] [2020-07-21 12:54:08,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:54:08,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:08,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:54:08,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:54:08,633 INFO L87 Difference]: Start difference. First operand 128 states and 149 transitions. Second operand 3 states. [2020-07-21 12:54:08,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:08,652 INFO L93 Difference]: Finished difference Result 188 states and 219 transitions. [2020-07-21 12:54:08,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:54:08,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-07-21 12:54:08,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:08,655 INFO L225 Difference]: With dead ends: 188 [2020-07-21 12:54:08,655 INFO L226 Difference]: Without dead ends: 119 [2020-07-21 12:54:08,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:54:08,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-21 12:54:08,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-07-21 12:54:08,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-07-21 12:54:08,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2020-07-21 12:54:08,669 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 60 [2020-07-21 12:54:08,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:08,670 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2020-07-21 12:54:08,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:54:08,670 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2020-07-21 12:54:08,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-21 12:54:08,675 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:08,676 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] [2020-07-21 12:54:08,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:08,889 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:08,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:08,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1988567769, now seen corresponding path program 1 times [2020-07-21 12:54:08,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:08,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985260015] [2020-07-21 12:54:08,892 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:09,165 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:09,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:09,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 12:54:09,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:09,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:09,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:09,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [985260015] [2020-07-21 12:54:09,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:09,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:54:09,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712427676] [2020-07-21 12:54:09,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:54:09,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:09,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:54:09,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:54:09,242 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 3 states. [2020-07-21 12:54:09,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:09,305 INFO L93 Difference]: Finished difference Result 297 states and 354 transitions. [2020-07-21 12:54:09,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:54:09,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-07-21 12:54:09,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:09,313 INFO L225 Difference]: With dead ends: 297 [2020-07-21 12:54:09,313 INFO L226 Difference]: Without dead ends: 206 [2020-07-21 12:54:09,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:54:09,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-07-21 12:54:09,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 194. [2020-07-21 12:54:09,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-07-21 12:54:09,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 229 transitions. [2020-07-21 12:54:09,339 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 229 transitions. Word has length 65 [2020-07-21 12:54:09,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:09,339 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 229 transitions. [2020-07-21 12:54:09,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:54:09,340 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 229 transitions. [2020-07-21 12:54:09,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-21 12:54:09,341 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:09,342 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] [2020-07-21 12:54:09,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:09,558 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:09,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:09,559 INFO L82 PathProgramCache]: Analyzing trace with hash 827482166, now seen corresponding path program 1 times [2020-07-21 12:54:09,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:09,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870732801] [2020-07-21 12:54:09,561 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:09,846 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:09,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:09,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:54:09,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:09,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:09,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870732801] [2020-07-21 12:54:09,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:09,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:54:09,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526767469] [2020-07-21 12:54:09,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:54:09,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:09,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:54:09,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:54:09,910 INFO L87 Difference]: Start difference. First operand 194 states and 229 transitions. Second operand 6 states. [2020-07-21 12:54:10,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:10,154 INFO L93 Difference]: Finished difference Result 474 states and 584 transitions. [2020-07-21 12:54:10,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:54:10,155 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-07-21 12:54:10,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:10,161 INFO L225 Difference]: With dead ends: 474 [2020-07-21 12:54:10,161 INFO L226 Difference]: Without dead ends: 308 [2020-07-21 12:54:10,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:54:10,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-07-21 12:54:10,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 300. [2020-07-21 12:54:10,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-07-21 12:54:10,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 359 transitions. [2020-07-21 12:54:10,192 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 359 transitions. Word has length 70 [2020-07-21 12:54:10,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:10,192 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 359 transitions. [2020-07-21 12:54:10,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:54:10,192 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 359 transitions. [2020-07-21 12:54:10,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-21 12:54:10,195 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:10,195 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] [2020-07-21 12:54:10,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:10,401 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:10,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:10,401 INFO L82 PathProgramCache]: Analyzing trace with hash 361073596, now seen corresponding path program 1 times [2020-07-21 12:54:10,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:10,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945448336] [2020-07-21 12:54:10,402 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:10,669 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:10,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:10,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 12:54:10,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:10,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:10,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:10,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945448336] [2020-07-21 12:54:10,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:10,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:54:10,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401137956] [2020-07-21 12:54:10,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:54:10,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:10,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:54:10,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:54:10,723 INFO L87 Difference]: Start difference. First operand 300 states and 359 transitions. Second operand 3 states. [2020-07-21 12:54:10,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:10,776 INFO L93 Difference]: Finished difference Result 836 states and 1067 transitions. [2020-07-21 12:54:10,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:54:10,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2020-07-21 12:54:10,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:10,786 INFO L225 Difference]: With dead ends: 836 [2020-07-21 12:54:10,786 INFO L226 Difference]: Without dead ends: 564 [2020-07-21 12:54:10,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:54:10,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-07-21 12:54:10,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 561. [2020-07-21 12:54:10,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-07-21 12:54:10,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 700 transitions. [2020-07-21 12:54:10,885 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 700 transitions. Word has length 88 [2020-07-21 12:54:10,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:10,885 INFO L479 AbstractCegarLoop]: Abstraction has 561 states and 700 transitions. [2020-07-21 12:54:10,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:54:10,885 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 700 transitions. [2020-07-21 12:54:10,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-21 12:54:10,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:10,889 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] [2020-07-21 12:54:11,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:11,105 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:11,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:11,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1000362859, now seen corresponding path program 1 times [2020-07-21 12:54:11,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:11,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018730663] [2020-07-21 12:54:11,108 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:11,348 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:11,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:11,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 12:54:11,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:11,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:11,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:11,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018730663] [2020-07-21 12:54:11,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:11,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:54:11,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884049609] [2020-07-21 12:54:11,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:54:11,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:11,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:54:11,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:54:11,427 INFO L87 Difference]: Start difference. First operand 561 states and 700 transitions. Second operand 6 states. [2020-07-21 12:54:12,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:12,407 INFO L93 Difference]: Finished difference Result 1888 states and 2537 transitions. [2020-07-21 12:54:12,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 12:54:12,407 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2020-07-21 12:54:12,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:12,417 INFO L225 Difference]: With dead ends: 1888 [2020-07-21 12:54:12,417 INFO L226 Difference]: Without dead ends: 1355 [2020-07-21 12:54:12,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 12:54:12,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2020-07-21 12:54:12,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1245. [2020-07-21 12:54:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1245 states. [2020-07-21 12:54:12,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1609 transitions. [2020-07-21 12:54:12,529 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1609 transitions. Word has length 92 [2020-07-21 12:54:12,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:12,530 INFO L479 AbstractCegarLoop]: Abstraction has 1245 states and 1609 transitions. [2020-07-21 12:54:12,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:54:12,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1609 transitions. [2020-07-21 12:54:12,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-21 12:54:12,533 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:12,533 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] [2020-07-21 12:54:12,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:12,746 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:12,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:12,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1750216773, now seen corresponding path program 1 times [2020-07-21 12:54:12,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:12,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2011431022] [2020-07-21 12:54:12,747 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:12,995 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:12,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:12,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:54:13,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:13,040 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:13,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:13,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2011431022] [2020-07-21 12:54:13,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:13,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:54:13,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614719584] [2020-07-21 12:54:13,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:54:13,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:13,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:54:13,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:54:13,043 INFO L87 Difference]: Start difference. First operand 1245 states and 1609 transitions. Second operand 6 states. [2020-07-21 12:54:13,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:13,130 INFO L93 Difference]: Finished difference Result 2492 states and 3304 transitions. [2020-07-21 12:54:13,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:54:13,131 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-07-21 12:54:13,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:13,139 INFO L225 Difference]: With dead ends: 2492 [2020-07-21 12:54:13,139 INFO L226 Difference]: Without dead ends: 1275 [2020-07-21 12:54:13,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:54:13,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2020-07-21 12:54:13,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1275. [2020-07-21 12:54:13,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1275 states. [2020-07-21 12:54:13,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 1647 transitions. [2020-07-21 12:54:13,218 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 1647 transitions. Word has length 88 [2020-07-21 12:54:13,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:13,219 INFO L479 AbstractCegarLoop]: Abstraction has 1275 states and 1647 transitions. [2020-07-21 12:54:13,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:54:13,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 1647 transitions. [2020-07-21 12:54:13,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-21 12:54:13,221 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:13,221 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] [2020-07-21 12:54:13,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:13,436 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:13,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:13,436 INFO L82 PathProgramCache]: Analyzing trace with hash -364013379, now seen corresponding path program 1 times [2020-07-21 12:54:13,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:13,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326796754] [2020-07-21 12:54:13,438 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:13,921 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:13,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:13,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 12:54:13,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:13,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:13,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:13,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326796754] [2020-07-21 12:54:13,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:13,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 12:54:13,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836936443] [2020-07-21 12:54:13,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 12:54:13,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:13,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 12:54:13,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:54:13,952 INFO L87 Difference]: Start difference. First operand 1275 states and 1647 transitions. Second operand 5 states. [2020-07-21 12:54:14,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:14,016 INFO L93 Difference]: Finished difference Result 2380 states and 3142 transitions. [2020-07-21 12:54:14,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 12:54:14,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2020-07-21 12:54:14,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:14,026 INFO L225 Difference]: With dead ends: 2380 [2020-07-21 12:54:14,027 INFO L226 Difference]: Without dead ends: 1133 [2020-07-21 12:54:14,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:54:14,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2020-07-21 12:54:14,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1133. [2020-07-21 12:54:14,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1133 states. [2020-07-21 12:54:14,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1435 transitions. [2020-07-21 12:54:14,101 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1435 transitions. Word has length 88 [2020-07-21 12:54:14,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:14,102 INFO L479 AbstractCegarLoop]: Abstraction has 1133 states and 1435 transitions. [2020-07-21 12:54:14,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 12:54:14,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1435 transitions. [2020-07-21 12:54:14,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-21 12:54:14,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:14,105 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] [2020-07-21 12:54:14,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:14,319 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:14,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:14,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1797836392, now seen corresponding path program 1 times [2020-07-21 12:54:14,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:14,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803796556] [2020-07-21 12:54:14,322 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:14,580 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:14,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:14,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-21 12:54:14,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:14,675 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:14,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:54:14,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803796556] [2020-07-21 12:54:14,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:54:14,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 12:54:14,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564489611] [2020-07-21 12:54:14,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 12:54:14,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:14,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 12:54:14,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-21 12:54:14,677 INFO L87 Difference]: Start difference. First operand 1133 states and 1435 transitions. Second operand 10 states. [2020-07-21 12:54:15,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:15,967 INFO L93 Difference]: Finished difference Result 2953 states and 4162 transitions. [2020-07-21 12:54:15,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 12:54:15,967 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 92 [2020-07-21 12:54:15,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:15,985 INFO L225 Difference]: With dead ends: 2953 [2020-07-21 12:54:15,985 INFO L226 Difference]: Without dead ends: 1848 [2020-07-21 12:54:15,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-07-21 12:54:15,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2020-07-21 12:54:16,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1275. [2020-07-21 12:54:16,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1275 states. [2020-07-21 12:54:16,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 1567 transitions. [2020-07-21 12:54:16,195 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 1567 transitions. Word has length 92 [2020-07-21 12:54:16,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:16,196 INFO L479 AbstractCegarLoop]: Abstraction has 1275 states and 1567 transitions. [2020-07-21 12:54:16,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 12:54:16,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 1567 transitions. [2020-07-21 12:54:16,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 12:54:16,199 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:54:16,199 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:54:16,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:16,411 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:54:16,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:54:16,411 INFO L82 PathProgramCache]: Analyzing trace with hash -553431422, now seen corresponding path program 1 times [2020-07-21 12:54:16,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:54:16,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339744843] [2020-07-21 12:54:16,412 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:16,768 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:54:16,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:54:16,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 12:54:16,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:54:16,880 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 23 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:54:16,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 12:54:17,198 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-21 12:54:17,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339744843] [2020-07-21 12:54:17,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 12:54:17,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-07-21 12:54:17,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806377250] [2020-07-21 12:54:17,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 12:54:17,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:54:17,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 12:54:17,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-21 12:54:17,201 INFO L87 Difference]: Start difference. First operand 1275 states and 1567 transitions. Second operand 10 states. [2020-07-21 12:54:17,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:54:17,949 INFO L93 Difference]: Finished difference Result 2632 states and 3259 transitions. [2020-07-21 12:54:17,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-21 12:54:17,950 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 133 [2020-07-21 12:54:17,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:54:17,951 INFO L225 Difference]: With dead ends: 2632 [2020-07-21 12:54:17,951 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 12:54:17,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 253 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2020-07-21 12:54:17,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 12:54:17,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 12:54:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 12:54:17,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 12:54:17,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 133 [2020-07-21 12:54:17,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:54:17,960 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 12:54:17,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 12:54:17,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 12:54:17,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 12:54:18,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:54:18,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 12:54:20,164 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 35 [2020-07-21 12:54:20,351 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 29 [2020-07-21 12:54:20,582 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 24 [2020-07-21 12:54:20,914 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 22 [2020-07-21 12:54:21,154 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 39 [2020-07-21 12:54:21,420 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 24 [2020-07-21 12:54:21,708 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 29 [2020-07-21 12:54:21,861 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 22 [2020-07-21 12:54:22,027 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-07-21 12:54:22,131 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 21 [2020-07-21 12:54:22,519 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 37 [2020-07-21 12:54:23,334 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 31 [2020-07-21 12:54:23,475 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 25 [2020-07-21 12:54:23,610 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 30 [2020-07-21 12:54:23,615 INFO L268 CegarLoopResult]: For program point L355-2(lines 355 376) no Hoare annotation was computed. [2020-07-21 12:54:23,615 INFO L268 CegarLoopResult]: For program point L377(lines 354 378) no Hoare annotation was computed. [2020-07-21 12:54:23,615 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 330 385) no Hoare annotation was computed. [2020-07-21 12:54:23,615 INFO L268 CegarLoopResult]: For program point L361(lines 361 365) no Hoare annotation was computed. [2020-07-21 12:54:23,615 INFO L268 CegarLoopResult]: For program point L361-1(lines 361 365) no Hoare annotation was computed. [2020-07-21 12:54:23,615 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 330 385) no Hoare annotation was computed. [2020-07-21 12:54:23,615 INFO L268 CegarLoopResult]: For program point L356(line 356) no Hoare annotation was computed. [2020-07-21 12:54:23,616 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 330 385) no Hoare annotation was computed. [2020-07-21 12:54:23,616 INFO L268 CegarLoopResult]: For program point L418-1(lines 418 422) no Hoare annotation was computed. [2020-07-21 12:54:23,616 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 12:54:23,616 INFO L268 CegarLoopResult]: For program point L412-2(lines 412 437) no Hoare annotation was computed. [2020-07-21 12:54:23,616 INFO L268 CegarLoopResult]: For program point L438(lines 411 439) no Hoare annotation was computed. [2020-07-21 12:54:23,616 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 386 445) no Hoare annotation was computed. [2020-07-21 12:54:23,617 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 12:54:23,617 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 386 445) no Hoare annotation was computed. [2020-07-21 12:54:23,617 INFO L268 CegarLoopResult]: For program point L431-1(line 431) no Hoare annotation was computed. [2020-07-21 12:54:23,617 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 386 445) no Hoare annotation was computed. [2020-07-21 12:54:23,617 INFO L268 CegarLoopResult]: For program point L418(lines 418 422) no Hoare annotation was computed. [2020-07-21 12:54:23,617 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2020-07-21 12:54:23,618 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2020-07-21 12:54:23,618 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2020-07-21 12:54:23,618 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2020-07-21 12:54:23,618 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2020-07-21 12:54:23,618 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification5_spec__1ENTRY(lines 816 823) the Hoare annotation is: true [2020-07-21 12:54:23,618 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification5_spec__1EXIT(lines 816 823) no Hoare annotation was computed. [2020-07-21 12:54:23,618 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification5_spec__1FINAL(lines 816 823) no Hoare annotation was computed. [2020-07-21 12:54:23,618 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification5_spec__2ENTRY(lines 824 833) the Hoare annotation is: (let ((.cse0 (not (<= ~waterLevel~0 2)))) (and (or (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse0 (not (<= ~pumpRunning~0 |old(~switchedOnBeforeTS~0)|)) (not (<= 1 ~pumpRunning~0))) (or (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse0 (<= 1 ~switchedOnBeforeTS~0) (not (= 0 ~pumpRunning~0))))) [2020-07-21 12:54:23,618 INFO L268 CegarLoopResult]: For program point L829(line 829) no Hoare annotation was computed. [2020-07-21 12:54:23,618 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification5_spec__2EXIT(lines 824 833) no Hoare annotation was computed. [2020-07-21 12:54:23,619 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification5_spec__2FINAL(lines 824 833) no Hoare annotation was computed. [2020-07-21 12:54:23,619 INFO L264 CegarLoopResult]: At program point L849(line 849) the Hoare annotation is: (let ((.cse0 (not (<= ~waterLevel~0 2))) (.cse1 (not (<= 1 ~pumpRunning~0)))) (and (or .cse0 (not (<= 2 ~waterLevel~0)) .cse1) (or .cse0 (not (= 0 ~pumpRunning~0))) (or (not (<= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1)) .cse1))) [2020-07-21 12:54:23,619 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification5_spec__3ENTRY(lines 834 862) the Hoare annotation is: true [2020-07-21 12:54:23,619 INFO L268 CegarLoopResult]: For program point L847(lines 847 853) no Hoare annotation was computed. [2020-07-21 12:54:23,619 INFO L268 CegarLoopResult]: For program point L846(lines 846 856) no Hoare annotation was computed. [2020-07-21 12:54:23,619 INFO L264 CegarLoopResult]: At program point L844(line 844) the Hoare annotation is: (let ((.cse0 (not (<= ~waterLevel~0 2))) (.cse1 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~pumpRunning~0))) (or .cse0 .cse1 (not (<= 1 ~pumpRunning~0))))) [2020-07-21 12:54:23,619 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification5_spec__3EXIT(lines 834 862) no Hoare annotation was computed. [2020-07-21 12:54:23,620 INFO L268 CegarLoopResult]: For program point L844-1(line 844) no Hoare annotation was computed. [2020-07-21 12:54:23,620 INFO L268 CegarLoopResult]: For program point L842(lines 842 859) no Hoare annotation was computed. [2020-07-21 12:54:23,620 INFO L268 CegarLoopResult]: For program point L842-1(lines 834 862) no Hoare annotation was computed. [2020-07-21 12:54:23,620 INFO L271 CegarLoopResult]: At program point L840(line 840) the Hoare annotation is: true [2020-07-21 12:54:23,620 INFO L268 CegarLoopResult]: For program point L840-1(line 840) no Hoare annotation was computed. [2020-07-21 12:54:23,620 INFO L264 CegarLoopResult]: At program point L802-1(line 802) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:54:23,620 INFO L268 CegarLoopResult]: For program point L800(lines 800 807) no Hoare annotation was computed. [2020-07-21 12:54:23,620 INFO L268 CegarLoopResult]: For program point L800-1(lines 800 807) no Hoare annotation was computed. [2020-07-21 12:54:23,621 INFO L268 CegarLoopResult]: For program point L798(line 798) no Hoare annotation was computed. [2020-07-21 12:54:23,621 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 790 812) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:54:23,621 INFO L264 CegarLoopResult]: At program point L797(line 797) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:54:23,621 INFO L264 CegarLoopResult]: At program point L796(line 796) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:54:23,621 INFO L264 CegarLoopResult]: At program point L796-1(line 796) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:54:23,621 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 790 812) no Hoare annotation was computed. [2020-07-21 12:54:23,621 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 790 812) no Hoare annotation was computed. [2020-07-21 12:54:23,621 INFO L264 CegarLoopResult]: At program point L802(line 802) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:54:23,622 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 747 770) no Hoare annotation was computed. [2020-07-21 12:54:23,622 INFO L268 CegarLoopResult]: For program point L765(line 765) no Hoare annotation was computed. [2020-07-21 12:54:23,622 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 747 770) no Hoare annotation was computed. [2020-07-21 12:54:23,622 INFO L268 CegarLoopResult]: For program point L764(line 764) no Hoare annotation was computed. [2020-07-21 12:54:23,622 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 747 770) no Hoare annotation was computed. [2020-07-21 12:54:23,622 INFO L268 CegarLoopResult]: For program point L763(line 763) no Hoare annotation was computed. [2020-07-21 12:54:23,622 INFO L268 CegarLoopResult]: For program point L762(line 762) no Hoare annotation was computed. [2020-07-21 12:54:23,622 INFO L268 CegarLoopResult]: For program point L761(line 761) no Hoare annotation was computed. [2020-07-21 12:54:23,622 INFO L268 CegarLoopResult]: For program point L760(line 760) no Hoare annotation was computed. [2020-07-21 12:54:23,622 INFO L268 CegarLoopResult]: For program point L759(line 759) no Hoare annotation was computed. [2020-07-21 12:54:23,622 INFO L268 CegarLoopResult]: For program point L758(line 758) no Hoare annotation was computed. [2020-07-21 12:54:23,622 INFO L268 CegarLoopResult]: For program point L757(line 757) no Hoare annotation was computed. [2020-07-21 12:54:23,623 INFO L268 CegarLoopResult]: For program point L756(line 756) no Hoare annotation was computed. [2020-07-21 12:54:23,623 INFO L268 CegarLoopResult]: For program point L755(line 755) no Hoare annotation was computed. [2020-07-21 12:54:23,623 INFO L268 CegarLoopResult]: For program point L754(line 754) no Hoare annotation was computed. [2020-07-21 12:54:23,623 INFO L268 CegarLoopResult]: For program point L753(line 753) no Hoare annotation was computed. [2020-07-21 12:54:23,623 INFO L268 CegarLoopResult]: For program point L752(line 752) no Hoare annotation was computed. [2020-07-21 12:54:23,623 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 254 268) no Hoare annotation was computed. [2020-07-21 12:54:23,623 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 254 268) the Hoare annotation is: (let ((.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (<= 1 ~pumpRunning~0))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2) (or .cse1 (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) (or .cse0 .cse1 (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0))))) [2020-07-21 12:54:23,624 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 254 268) no Hoare annotation was computed. [2020-07-21 12:54:23,624 INFO L264 CegarLoopResult]: At program point L260(line 260) the Hoare annotation is: (let ((.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (<= 1 ~pumpRunning~0))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2) (or .cse1 (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0))))) [2020-07-21 12:54:23,624 INFO L268 CegarLoopResult]: For program point L258(lines 258 264) no Hoare annotation was computed. [2020-07-21 12:54:23,624 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 190 198) no Hoare annotation was computed. [2020-07-21 12:54:23,624 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 190 198) the Hoare annotation is: true [2020-07-21 12:54:23,624 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 190 198) no Hoare annotation was computed. [2020-07-21 12:54:23,624 INFO L268 CegarLoopResult]: For program point L218(lines 218 226) no Hoare annotation was computed. [2020-07-21 12:54:23,625 INFO L268 CegarLoopResult]: For program point L218-2(lines 218 226) no Hoare annotation was computed. [2020-07-21 12:54:23,625 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 199 234) no Hoare annotation was computed. [2020-07-21 12:54:23,625 INFO L268 CegarLoopResult]: For program point L206(lines 206 214) no Hoare annotation was computed. [2020-07-21 12:54:23,625 INFO L268 CegarLoopResult]: For program point L206-2(lines 206 214) no Hoare annotation was computed. [2020-07-21 12:54:23,625 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 199 234) no Hoare annotation was computed. [2020-07-21 12:54:23,625 INFO L268 CegarLoopResult]: For program point L229(line 229) no Hoare annotation was computed. [2020-07-21 12:54:23,625 INFO L268 CegarLoopResult]: For program point L229-1(line 229) no Hoare annotation was computed. [2020-07-21 12:54:23,625 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 199 234) no Hoare annotation was computed. [2020-07-21 12:54:23,626 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2020-07-21 12:54:23,626 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2020-07-21 12:54:23,626 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 284 329) no Hoare annotation was computed. [2020-07-21 12:54:23,626 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 284 329) no Hoare annotation was computed. [2020-07-21 12:54:23,626 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 284 329) no Hoare annotation was computed. [2020-07-21 12:54:23,626 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 597 642) no Hoare annotation was computed. [2020-07-21 12:54:23,626 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 597 642) no Hoare annotation was computed. [2020-07-21 12:54:23,626 INFO L268 CegarLoopResult]: For program point L617(lines 617 624) no Hoare annotation was computed. [2020-07-21 12:54:23,627 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 597 642) no Hoare annotation was computed. [2020-07-21 12:54:23,627 INFO L268 CegarLoopResult]: For program point L611(lines 611 631) no Hoare annotation was computed. [2020-07-21 12:54:23,627 INFO L268 CegarLoopResult]: For program point L611-1(lines 611 631) no Hoare annotation was computed. [2020-07-21 12:54:23,627 INFO L264 CegarLoopResult]: At program point L784(line 784) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:54:23,627 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 779 789) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:54:23,627 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 779 789) no Hoare annotation was computed. [2020-07-21 12:54:23,627 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 779 789) no Hoare annotation was computed. [2020-07-21 12:54:23,628 INFO L268 CegarLoopResult]: For program point isMethaneAlarmENTRY(lines 179 189) no Hoare annotation was computed. [2020-07-21 12:54:23,628 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 179 189) no Hoare annotation was computed. [2020-07-21 12:54:23,628 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 12:54:23,628 INFO L268 CegarLoopResult]: For program point L184-1(line 184) no Hoare annotation was computed. [2020-07-21 12:54:23,628 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 179 189) no Hoare annotation was computed. [2020-07-21 12:54:23,628 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 171 178) the Hoare annotation is: (let ((.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (<= 1 ~pumpRunning~0))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2) (or .cse0 .cse1 (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0))))) [2020-07-21 12:54:23,628 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 171 178) no Hoare annotation was computed. [2020-07-21 12:54:23,628 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 171 178) no Hoare annotation was computed. [2020-07-21 12:54:23,629 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 943 956) no Hoare annotation was computed. [2020-07-21 12:54:23,629 INFO L268 CegarLoopResult]: For program point L947(lines 947 953) no Hoare annotation was computed. [2020-07-21 12:54:23,629 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 943 956) the Hoare annotation is: true [2020-07-21 12:54:23,629 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 943 956) no Hoare annotation was computed. [2020-07-21 12:54:23,629 INFO L264 CegarLoopResult]: At program point L157(line 157) the Hoare annotation is: (and (or (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))) (or (not (<= 1 |old(~pumpRunning~0)|)) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) (<= 1 ~pumpRunning~0)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1)))) [2020-07-21 12:54:23,629 INFO L268 CegarLoopResult]: For program point L157-1(lines 138 162) no Hoare annotation was computed. [2020-07-21 12:54:23,629 INFO L264 CegarLoopResult]: At program point L152(line 152) the Hoare annotation is: (and (or (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or (not (<= ~waterLevel~0 2)) (and (= 0 processEnvironment_~tmp~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)))) [2020-07-21 12:54:23,630 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 138 162) no Hoare annotation was computed. [2020-07-21 12:54:23,630 INFO L264 CegarLoopResult]: At program point L148(line 148) the Hoare annotation is: (let ((.cse0 (not (<= ~waterLevel~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) .cse0) (or .cse1 .cse0) (or (not (<= ~waterLevel~0 2)) .cse1 (= 0 ~pumpRunning~0)))) [2020-07-21 12:54:23,630 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 138 162) the Hoare annotation is: (and (or (not (<= 1 |old(~pumpRunning~0)|)) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) (<= 1 ~pumpRunning~0)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0))) [2020-07-21 12:54:23,630 INFO L268 CegarLoopResult]: For program point L146(lines 146 154) no Hoare annotation was computed. [2020-07-21 12:54:23,630 INFO L264 CegarLoopResult]: At program point L144(line 144) the Hoare annotation is: (and (or (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0))) [2020-07-21 12:54:23,630 INFO L268 CegarLoopResult]: For program point L144-1(line 144) no Hoare annotation was computed. [2020-07-21 12:54:23,630 INFO L268 CegarLoopResult]: For program point L142(lines 142 159) no Hoare annotation was computed. [2020-07-21 12:54:23,630 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 130 136) no Hoare annotation was computed. [2020-07-21 12:54:23,631 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 130 136) the Hoare annotation is: true [2020-07-21 12:54:23,631 INFO L264 CegarLoopResult]: At program point L704(lines 657 706) the Hoare annotation is: (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (<= test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~pumpRunning~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) (<= ~waterLevel~0 1) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:54:23,631 INFO L264 CegarLoopResult]: At program point testENTRY(lines 647 714) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:54:23,631 INFO L264 CegarLoopResult]: At program point L669(line 669) the Hoare annotation is: (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (<= test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~pumpRunning~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) (<= ~waterLevel~0 1) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:54:23,631 INFO L268 CegarLoopResult]: For program point L667(lines 667 673) no Hoare annotation was computed. [2020-07-21 12:54:23,631 INFO L268 CegarLoopResult]: For program point L667-1(lines 667 673) no Hoare annotation was computed. [2020-07-21 12:54:23,632 INFO L268 CegarLoopResult]: For program point testFINAL(lines 647 714) no Hoare annotation was computed. [2020-07-21 12:54:23,632 INFO L268 CegarLoopResult]: For program point L659(lines 659 663) no Hoare annotation was computed. [2020-07-21 12:54:23,632 INFO L264 CegarLoopResult]: At program point L707(lines 656 708) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:54:23,632 INFO L264 CegarLoopResult]: At program point L697(line 697) the Hoare annotation is: (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (<= test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~pumpRunning~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) (<= ~waterLevel~0 1) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:54:23,632 INFO L268 CegarLoopResult]: For program point L695(lines 695 701) no Hoare annotation was computed. [2020-07-21 12:54:23,632 INFO L264 CegarLoopResult]: At program point L695-1(lines 687 702) the Hoare annotation is: (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (<= test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~pumpRunning~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) (<= ~waterLevel~0 1) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:54:23,632 INFO L268 CegarLoopResult]: For program point L658(lines 657 706) no Hoare annotation was computed. [2020-07-21 12:54:23,633 INFO L264 CegarLoopResult]: At program point L689(line 689) the Hoare annotation is: (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (<= test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~pumpRunning~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) (<= ~waterLevel~0 1) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:54:23,633 INFO L268 CegarLoopResult]: For program point L687(lines 687 702) no Hoare annotation was computed. [2020-07-21 12:54:23,633 INFO L264 CegarLoopResult]: At program point L679(line 679) the Hoare annotation is: (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (<= test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~pumpRunning~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) (<= ~waterLevel~0 1) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:54:23,633 INFO L268 CegarLoopResult]: For program point L677(lines 677 683) no Hoare annotation was computed. [2020-07-21 12:54:23,633 INFO L268 CegarLoopResult]: For program point L677-1(lines 677 683) no Hoare annotation was computed. [2020-07-21 12:54:23,633 INFO L268 CegarLoopResult]: For program point testEXIT(lines 647 714) no Hoare annotation was computed. [2020-07-21 12:54:23,633 INFO L268 CegarLoopResult]: For program point L571(lines 571 578) no Hoare annotation was computed. [2020-07-21 12:54:23,634 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 551 596) no Hoare annotation was computed. [2020-07-21 12:54:23,634 INFO L268 CegarLoopResult]: For program point L565(lines 565 585) no Hoare annotation was computed. [2020-07-21 12:54:23,634 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 551 596) no Hoare annotation was computed. [2020-07-21 12:54:23,634 INFO L268 CegarLoopResult]: For program point L565-1(lines 565 585) no Hoare annotation was computed. [2020-07-21 12:54:23,634 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 551 596) no Hoare annotation was computed. [2020-07-21 12:54:23,634 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 911 933) no Hoare annotation was computed. [2020-07-21 12:54:23,634 INFO L268 CegarLoopResult]: For program point L919(lines 919 927) no Hoare annotation was computed. [2020-07-21 12:54:23,634 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 911 933) no Hoare annotation was computed. [2020-07-21 12:54:23,635 INFO L268 CegarLoopResult]: For program point L919-2(lines 919 927) no Hoare annotation was computed. [2020-07-21 12:54:23,635 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 911 933) no Hoare annotation was computed. [2020-07-21 12:54:23,635 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 44 53) no Hoare annotation was computed. [2020-07-21 12:54:23,635 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 44 53) no Hoare annotation was computed. [2020-07-21 12:54:23,635 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 44 53) no Hoare annotation was computed. [2020-07-21 12:54:23,635 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 448 550) no Hoare annotation was computed. [2020-07-21 12:54:23,635 INFO L268 CegarLoopResult]: For program point L477(lines 477 493) no Hoare annotation was computed. [2020-07-21 12:54:23,635 INFO L268 CegarLoopResult]: For program point L537(lines 537 544) no Hoare annotation was computed. [2020-07-21 12:54:23,635 INFO L268 CegarLoopResult]: For program point L498(lines 497 517) no Hoare annotation was computed. [2020-07-21 12:54:23,636 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 12:54:23,636 INFO L268 CegarLoopResult]: For program point L529-1(line 529) no Hoare annotation was computed. [2020-07-21 12:54:23,636 INFO L268 CegarLoopResult]: For program point L494(lines 494 535) no Hoare annotation was computed. [2020-07-21 12:54:23,636 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 448 550) no Hoare annotation was computed. [2020-07-21 12:54:23,636 INFO L268 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-07-21 12:54:23,636 INFO L268 CegarLoopResult]: For program point L513-1(line 513) no Hoare annotation was computed. [2020-07-21 12:54:23,636 INFO L268 CegarLoopResult]: For program point L472(lines 472 476) no Hoare annotation was computed. [2020-07-21 12:54:23,636 INFO L268 CegarLoopResult]: For program point L536(lines 536 547) no Hoare annotation was computed. [2020-07-21 12:54:23,637 INFO L268 CegarLoopResult]: For program point L499(lines 499 503) no Hoare annotation was computed. [2020-07-21 12:54:23,637 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 448 550) no Hoare annotation was computed. [2020-07-21 12:54:23,637 INFO L268 CegarLoopResult]: For program point L497-2(lines 497 517) no Hoare annotation was computed. [2020-07-21 12:54:23,637 INFO L268 CegarLoopResult]: For program point L518(lines 496 519) no Hoare annotation was computed. [2020-07-21 12:54:23,637 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:54:23,637 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-21 12:54:23,637 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:54:23,637 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 163 170) no Hoare annotation was computed. [2020-07-21 12:54:23,638 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 163 170) no Hoare annotation was computed. [2020-07-21 12:54:23,638 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 163 170) the Hoare annotation is: (or (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:54:23,638 INFO L268 CegarLoopResult]: For program point L242-1(line 242) no Hoare annotation was computed. [2020-07-21 12:54:23,638 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 235 253) no Hoare annotation was computed. [2020-07-21 12:54:23,638 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 235 253) the Hoare annotation is: true [2020-07-21 12:54:23,638 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 235 253) no Hoare annotation was computed. [2020-07-21 12:54:23,638 INFO L268 CegarLoopResult]: For program point L244(lines 244 248) no Hoare annotation was computed. [2020-07-21 12:54:23,638 INFO L271 CegarLoopResult]: At program point L242(line 242) the Hoare annotation is: true [2020-07-21 12:54:23,638 INFO L268 CegarLoopResult]: For program point L244-2(lines 244 248) no Hoare annotation was computed. [2020-07-21 12:54:23,639 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 934 942) the Hoare annotation is: true [2020-07-21 12:54:23,639 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 934 942) no Hoare annotation was computed. [2020-07-21 12:54:23,639 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 934 942) no Hoare annotation was computed. [2020-07-21 12:54:23,639 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:54:23,639 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 12:54:23,639 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:54:23,639 INFO L268 CegarLoopResult]: For program point L894-1(lines 890 901) no Hoare annotation was computed. [2020-07-21 12:54:23,639 INFO L271 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 890 901) the Hoare annotation is: true [2020-07-21 12:54:23,640 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 890 901) no Hoare annotation was computed. [2020-07-21 12:54:23,640 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalENTRY(lines 902 910) no Hoare annotation was computed. [2020-07-21 12:54:23,640 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 902 910) no Hoare annotation was computed. [2020-07-21 12:54:23,640 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 902 910) no Hoare annotation was computed. [2020-07-21 12:54:23,640 INFO L264 CegarLoopResult]: At program point L119(line 119) the Hoare annotation is: (let ((.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (<= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (<= 1 ~pumpRunning~0)) (.cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (<= |old(~pumpRunning~0)| |old(~switchedOnBeforeTS~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 .cse2 .cse3)) (or .cse0 (and .cse1 (<= 1 ~waterLevel~0) (<= ~waterLevel~0 1) .cse3) .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or (and .cse2 (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) .cse4))) [2020-07-21 12:54:23,640 INFO L264 CegarLoopResult]: At program point L117(lines 117 123) the Hoare annotation is: (let ((.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (<= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (<= 1 ~pumpRunning~0)) (.cse4 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (<= |old(~pumpRunning~0)| |old(~switchedOnBeforeTS~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 .cse2 .cse3)) (or .cse0 (and .cse1 (<= 1 ~waterLevel~0) (<= ~waterLevel~0 1) .cse3) .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or (and .cse2 (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse2 .cse3) .cse4))) [2020-07-21 12:54:23,641 INFO L264 CegarLoopResult]: At program point L112(line 112) the Hoare annotation is: (let ((.cse1 (<= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (<= 1 ~pumpRunning~0)) (.cse2 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (<= |old(~pumpRunning~0)| |old(~switchedOnBeforeTS~0)|)) .cse0 (and .cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse2 .cse3) .cse4) (or (and .cse1 (<= ~waterLevel~0 2) .cse3 .cse2) .cse0 .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse4))) [2020-07-21 12:54:23,641 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 103 129) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (<= ~waterLevel~0 2)) (.cse2 (<= 1 ~pumpRunning~0)) (.cse3 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (<= |old(~pumpRunning~0)| |old(~switchedOnBeforeTS~0)|)) .cse0 (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse1 .cse2 .cse3) .cse4) (or (and .cse5 (= 0 ~pumpRunning~0) .cse3) .cse6 .cse4) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse6) (or (and .cse5 .cse2 .cse3) .cse0 .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse6 (<= 1 ~switchedOnBeforeTS~0) .cse4))) [2020-07-21 12:54:23,641 INFO L268 CegarLoopResult]: For program point L110(lines 106 128) no Hoare annotation was computed. [2020-07-21 12:54:23,641 INFO L268 CegarLoopResult]: For program point L108(lines 106 128) no Hoare annotation was computed. [2020-07-21 12:54:23,641 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 103 129) no Hoare annotation was computed. [2020-07-21 12:54:23,641 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 103 129) no Hoare annotation was computed. [2020-07-21 12:54:23,641 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 717 746) no Hoare annotation was computed. [2020-07-21 12:54:23,642 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 717 746) the Hoare annotation is: true [2020-07-21 12:54:23,642 INFO L268 CegarLoopResult]: For program point L731(lines 731 735) no Hoare annotation was computed. [2020-07-21 12:54:23,642 INFO L271 CegarLoopResult]: At program point L731-1(lines 731 735) the Hoare annotation is: true [2020-07-21 12:54:23,642 INFO L268 CegarLoopResult]: For program point L728(line 728) no Hoare annotation was computed. [2020-07-21 12:54:23,642 INFO L271 CegarLoopResult]: At program point L727-2(lines 727 741) the Hoare annotation is: true [2020-07-21 12:54:23,642 INFO L271 CegarLoopResult]: At program point L723(line 723) the Hoare annotation is: true [2020-07-21 12:54:23,642 INFO L268 CegarLoopResult]: For program point L723-1(line 723) no Hoare annotation was computed. [2020-07-21 12:54:23,642 INFO L271 CegarLoopResult]: At program point L742(lines 717 746) the Hoare annotation is: true [2020-07-21 12:54:23,643 INFO L268 CegarLoopResult]: For program point L738(line 738) no Hoare annotation was computed. [2020-07-21 12:54:23,643 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 866 877) the Hoare annotation is: (let ((.cse0 (not (<= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse1 (not (<= 1 ~pumpRunning~0)))) (and (or (not (<= |old(~waterLevel~0)| 2)) .cse0 .cse1 (and (<= ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0))) (or (not (<= |old(~waterLevel~0)| 1)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse0 .cse1))) [2020-07-21 12:54:23,643 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 866 877) no Hoare annotation was computed. [2020-07-21 12:54:23,643 INFO L268 CegarLoopResult]: For program point L870-1(lines 866 877) no Hoare annotation was computed. [2020-07-21 12:54:23,643 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 771 777) no Hoare annotation was computed. [2020-07-21 12:54:23,643 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 771 777) the Hoare annotation is: true [2020-07-21 12:54:23,643 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:54:23,643 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-21 12:54:23,643 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 12:54:23,644 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:54:23,644 INFO L268 CegarLoopResult]: For program point startSystemEXIT(lines 269 276) no Hoare annotation was computed. [2020-07-21 12:54:23,644 INFO L271 CegarLoopResult]: At program point startSystemENTRY(lines 269 276) the Hoare annotation is: true [2020-07-21 12:54:23,644 INFO L268 CegarLoopResult]: For program point startSystemFINAL(lines 269 276) no Hoare annotation was computed. [2020-07-21 12:54:23,644 INFO L268 CegarLoopResult]: For program point L882-1(lines 878 889) no Hoare annotation was computed. [2020-07-21 12:54:23,644 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 878 889) no Hoare annotation was computed. [2020-07-21 12:54:23,644 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 878 889) the Hoare annotation is: (let ((.cse6 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (not (= 0 ~pumpRunning~0))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (and (<= ~waterLevel~0 2) .cse6)) (.cse3 (not (<= |old(~waterLevel~0)| 1))) (.cse5 (not (<= 1 ~pumpRunning~0))) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1) (or .cse0 .cse5 (not (<= 2 |old(~waterLevel~0)|)) .cse2) (or .cse3 (not (<= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse5 (and .cse4 .cse6))))) [2020-07-21 12:54:23,644 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 78 85) no Hoare annotation was computed. [2020-07-21 12:54:23,645 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2020-07-21 12:54:23,645 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 78 85) the Hoare annotation is: true [2020-07-21 12:54:23,645 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 78 85) no Hoare annotation was computed. [2020-07-21 12:54:23,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:54:23 BoogieIcfgContainer [2020-07-21 12:54:23,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:54:23,663 INFO L168 Benchmark]: Toolchain (without parser) took 18167.83 ms. Allocated memory was 149.4 MB in the beginning and 436.7 MB in the end (delta: 287.3 MB). Free memory was 105.9 MB in the beginning and 162.8 MB in the end (delta: -57.0 MB). Peak memory consumption was 298.2 MB. Max. memory is 7.1 GB. [2020-07-21 12:54:23,664 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 149.4 MB. Free memory was 125.6 MB in the beginning and 125.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 12:54:23,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.37 ms. Allocated memory was 149.4 MB in the beginning and 205.0 MB in the end (delta: 55.6 MB). Free memory was 105.5 MB in the beginning and 172.6 MB in the end (delta: -67.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:54:23,666 INFO L168 Benchmark]: Boogie Preprocessor took 84.48 ms. Allocated memory is still 205.0 MB. Free memory was 172.6 MB in the beginning and 168.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-21 12:54:23,666 INFO L168 Benchmark]: RCFGBuilder took 1047.66 ms. Allocated memory was 205.0 MB in the beginning and 232.3 MB in the end (delta: 27.3 MB). Free memory was 168.2 MB in the beginning and 185.2 MB in the end (delta: -17.0 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. [2020-07-21 12:54:23,667 INFO L168 Benchmark]: TraceAbstraction took 16335.82 ms. Allocated memory was 232.3 MB in the beginning and 436.7 MB in the end (delta: 204.5 MB). Free memory was 183.9 MB in the beginning and 162.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 293.4 MB. Max. memory is 7.1 GB. [2020-07-21 12:54:23,671 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 149.4 MB. Free memory was 125.6 MB in the beginning and 125.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 694.37 ms. Allocated memory was 149.4 MB in the beginning and 205.0 MB in the end (delta: 55.6 MB). Free memory was 105.5 MB in the beginning and 172.6 MB in the end (delta: -67.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.48 ms. Allocated memory is still 205.0 MB. Free memory was 172.6 MB in the beginning and 168.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1047.66 ms. Allocated memory was 205.0 MB in the beginning and 232.3 MB in the end (delta: 27.3 MB). Free memory was 168.2 MB in the beginning and 185.2 MB in the end (delta: -17.0 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16335.82 ms. Allocated memory was 232.3 MB in the beginning and 436.7 MB in the end (delta: 204.5 MB). Free memory was 183.9 MB in the beginning and 162.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 293.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 82]: 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: 717]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 656]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 657]: Loop Invariant Derived loop invariant: ((((((((2 <= waterLevel && waterLevel <= 2) && splverifierCounter <= 0) && 1 <= pumpRunning) || !(\old(waterLevel) <= 1)) || !(0 == \old(pumpRunning))) || ((waterLevel <= 2 && 0 == pumpRunning) && splverifierCounter <= 0)) || (((pumpRunning <= switchedOnBeforeTS && waterLevel <= 1) && splverifierCounter <= 0) && 1 <= pumpRunning)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 727]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 235 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.7s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1696 SDtfs, 1332 SDslu, 2842 SDs, 0 SdLazy, 1993 SolverSat, 599 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 984 GetRequests, 918 SyntacticMatches, 7 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1275occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 706 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 58 LocationsWithAnnotation, 2939 PreInvPairs, 3158 NumberOfFragments, 1458 HoareAnnotationTreeSize, 2939 FomulaSimplifications, 7526 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 58 FomulaSimplificationsInter, 15963 FormulaSimplificationTreeSizeReductionInter, 3.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 835 NumberOfCodeBlocks, 835 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 957 ConstructedInterpolants, 0 QuantifiedInterpolants, 173511 SizeOfPredicates, 30 NumberOfNonLiveVariables, 7622 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 81/95 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...