/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 16:25:12,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 16:25:12,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 16:25:12,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 16:25:12,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 16:25:12,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 16:25:12,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 16:25:12,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 16:25:12,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 16:25:12,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 16:25:12,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 16:25:12,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 16:25:12,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 16:25:12,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 16:25:12,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 16:25:12,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 16:25:12,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 16:25:12,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 16:25:12,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 16:25:12,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 16:25:12,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 16:25:12,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 16:25:12,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 16:25:12,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 16:25:12,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 16:25:12,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 16:25:12,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 16:25:12,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 16:25:12,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 16:25:12,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 16:25:12,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 16:25:12,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 16:25:12,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 16:25:12,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 16:25:12,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 16:25:12,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 16:25:12,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 16:25:12,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 16:25:12,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 16:25:12,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 16:25:12,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 16:25:12,280 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 16:25:12,295 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 16:25:12,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 16:25:12,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 16:25:12,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 16:25:12,297 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 16:25:12,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 16:25:12,297 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 16:25:12,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 16:25:12,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 16:25:12,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 16:25:12,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 16:25:12,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 16:25:12,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 16:25:12,299 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 16:25:12,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 16:25:12,299 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 16:25:12,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 16:25:12,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 16:25:12,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 16:25:12,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 16:25:12,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 16:25:12,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:25:12,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 16:25:12,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 16:25:12,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 16:25:12,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 16:25:12,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:12,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 16:25:12,302 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 16:25:12,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 16:25:12,659 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 16:25:12,676 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 16:25:12,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 16:25:12,681 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 16:25:12,682 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 16:25:12,682 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2020-07-20 16:25:12,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b90a8d7a8/20afeddf0df546bdb189bf9af96f1c94/FLAG145f046f3 [2020-07-20 16:25:13,222 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 16:25:13,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2020-07-20 16:25:13,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b90a8d7a8/20afeddf0df546bdb189bf9af96f1c94/FLAG145f046f3 [2020-07-20 16:25:13,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b90a8d7a8/20afeddf0df546bdb189bf9af96f1c94 [2020-07-20 16:25:13,588 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 16:25:13,590 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 16:25:13,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 16:25:13,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 16:25:13,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 16:25:13,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:25:13" (1/1) ... [2020-07-20 16:25:13,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40fb56e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:13, skipping insertion in model container [2020-07-20 16:25:13,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:25:13" (1/1) ... [2020-07-20 16:25:13,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 16:25:13,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 16:25:14,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:25:14,162 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 16:25:14,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:25:14,274 INFO L208 MainTranslator]: Completed translation [2020-07-20 16:25:14,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:14 WrapperNode [2020-07-20 16:25:14,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 16:25:14,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 16:25:14,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 16:25:14,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 16:25:14,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:14" (1/1) ... [2020-07-20 16:25:14,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:14" (1/1) ... [2020-07-20 16:25:14,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:14" (1/1) ... [2020-07-20 16:25:14,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:14" (1/1) ... [2020-07-20 16:25:14,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:14" (1/1) ... [2020-07-20 16:25:14,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:14" (1/1) ... [2020-07-20 16:25:14,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:14" (1/1) ... [2020-07-20 16:25:14,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 16:25:14,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 16:25:14,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 16:25:14,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 16:25:14,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:25:14,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 16:25:14,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 16:25:14,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 16:25:14,437 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 16:25:14,437 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 16:25:14,437 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 16:25:14,437 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 16:25:14,437 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 16:25:14,437 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-20 16:25:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 16:25:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 16:25:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 16:25:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 16:25:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 16:25:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 16:25:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 16:25:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 16:25:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 16:25:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 16:25:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 16:25:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 16:25:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 16:25:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-20 16:25:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 16:25:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 16:25:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 16:25:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 16:25:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 16:25:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 16:25:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 16:25:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 16:25:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 16:25:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 16:25:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 16:25:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 16:25:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 16:25:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 16:25:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 16:25:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 16:25:14,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 16:25:14,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 16:25:14,443 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 16:25:14,443 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 16:25:14,443 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 16:25:14,443 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 16:25:14,443 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 16:25:14,444 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 16:25:14,444 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 16:25:14,444 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 16:25:14,444 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 16:25:14,444 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 16:25:14,444 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 16:25:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 16:25:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 16:25:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 16:25:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-20 16:25:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 16:25:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 16:25:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 16:25:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 16:25:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 16:25:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-20 16:25:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 16:25:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 16:25:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 16:25:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 16:25:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 16:25:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 16:25:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 16:25:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 16:25:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 16:25:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 16:25:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 16:25:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 16:25:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 16:25:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 16:25:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 16:25:14,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 16:25:14,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 16:25:14,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 16:25:14,449 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 16:25:14,449 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 16:25:14,449 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 16:25:14,449 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 16:25:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 16:25:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 16:25:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 16:25:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 16:25:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 16:25:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 16:25:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 16:25:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 16:25:15,597 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 16:25:15,598 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 16:25:15,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:25:15 BoogieIcfgContainer [2020-07-20 16:25:15,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 16:25:15,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 16:25:15,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 16:25:15,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 16:25:15,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:25:13" (1/3) ... [2020-07-20 16:25:15,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49951e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:25:15, skipping insertion in model container [2020-07-20 16:25:15,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:14" (2/3) ... [2020-07-20 16:25:15,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49951e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:25:15, skipping insertion in model container [2020-07-20 16:25:15,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:25:15" (3/3) ... [2020-07-20 16:25:15,637 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product45.cil.c [2020-07-20 16:25:15,647 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 16:25:15,654 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 16:25:15,667 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 16:25:15,687 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 16:25:15,688 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 16:25:15,688 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 16:25:15,688 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 16:25:15,688 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 16:25:15,688 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 16:25:15,688 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 16:25:15,688 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 16:25:15,713 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2020-07-20 16:25:15,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 16:25:15,722 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:15,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:15,724 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:15,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:15,730 INFO L82 PathProgramCache]: Analyzing trace with hash 261309835, now seen corresponding path program 1 times [2020-07-20 16:25:15,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:15,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086098671] [2020-07-20 16:25:15,741 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:16,225 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:16,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:16,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 16:25:16,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:16,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:16,278 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:16,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086098671] [2020-07-20 16:25:16,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:16,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 16:25:16,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649737641] [2020-07-20 16:25:16,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 16:25:16,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:16,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 16:25:16,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:25:16,311 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 2 states. [2020-07-20 16:25:16,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:16,364 INFO L93 Difference]: Finished difference Result 266 states and 329 transitions. [2020-07-20 16:25:16,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 16:25:16,366 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-20 16:25:16,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:16,382 INFO L225 Difference]: With dead ends: 266 [2020-07-20 16:25:16,383 INFO L226 Difference]: Without dead ends: 133 [2020-07-20 16:25:16,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:25:16,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-20 16:25:16,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-07-20 16:25:16,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-20 16:25:16,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2020-07-20 16:25:16,453 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 46 [2020-07-20 16:25:16,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:16,454 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2020-07-20 16:25:16,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 16:25:16,454 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2020-07-20 16:25:16,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 16:25:16,458 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:16,458 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:16,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:16,672 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:16,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:16,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1021856254, now seen corresponding path program 1 times [2020-07-20 16:25:16,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:16,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128821574] [2020-07-20 16:25:16,675 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:17,064 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:17,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:17,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:25:17,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:17,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:17,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:17,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128821574] [2020-07-20 16:25:17,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:17,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:25:17,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686304709] [2020-07-20 16:25:17,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:25:17,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:17,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:25:17,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:17,114 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand 3 states. [2020-07-20 16:25:17,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:17,136 INFO L93 Difference]: Finished difference Result 215 states and 251 transitions. [2020-07-20 16:25:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:25:17,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-20 16:25:17,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:17,139 INFO L225 Difference]: With dead ends: 215 [2020-07-20 16:25:17,139 INFO L226 Difference]: Without dead ends: 124 [2020-07-20 16:25:17,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:17,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-20 16:25:17,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-07-20 16:25:17,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-07-20 16:25:17,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2020-07-20 16:25:17,155 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 47 [2020-07-20 16:25:17,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:17,156 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2020-07-20 16:25:17,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:25:17,156 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2020-07-20 16:25:17,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 16:25:17,158 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:17,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:17,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:17,373 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:17,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:17,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1136847733, now seen corresponding path program 1 times [2020-07-20 16:25:17,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:17,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982326024] [2020-07-20 16:25:17,376 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:17,841 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:17,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:17,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:25:17,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:17,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:17,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:17,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1982326024] [2020-07-20 16:25:17,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:17,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:25:17,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325369262] [2020-07-20 16:25:17,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:25:17,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:17,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:25:17,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:17,881 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand 3 states. [2020-07-20 16:25:17,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:17,915 INFO L93 Difference]: Finished difference Result 224 states and 265 transitions. [2020-07-20 16:25:17,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:25:17,916 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 16:25:17,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:17,918 INFO L225 Difference]: With dead ends: 224 [2020-07-20 16:25:17,918 INFO L226 Difference]: Without dead ends: 124 [2020-07-20 16:25:17,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:17,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-20 16:25:17,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-07-20 16:25:17,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-07-20 16:25:17,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2020-07-20 16:25:17,934 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 51 [2020-07-20 16:25:17,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:17,934 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2020-07-20 16:25:17,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:25:17,935 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2020-07-20 16:25:17,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-20 16:25:17,937 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:17,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:18,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:18,142 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:18,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:18,143 INFO L82 PathProgramCache]: Analyzing trace with hash -629251764, now seen corresponding path program 1 times [2020-07-20 16:25:18,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:18,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322329919] [2020-07-20 16:25:18,145 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:18,514 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:18,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:18,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 16:25:18,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:18,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:18,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:18,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322329919] [2020-07-20 16:25:18,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:18,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:18,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213759148] [2020-07-20 16:25:18,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:18,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:18,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:18,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:18,584 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 6 states. [2020-07-20 16:25:19,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:19,215 INFO L93 Difference]: Finished difference Result 310 states and 372 transitions. [2020-07-20 16:25:19,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:25:19,216 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-07-20 16:25:19,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:19,221 INFO L225 Difference]: With dead ends: 310 [2020-07-20 16:25:19,221 INFO L226 Difference]: Without dead ends: 210 [2020-07-20 16:25:19,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:25:19,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-07-20 16:25:19,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 195. [2020-07-20 16:25:19,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-07-20 16:25:19,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 218 transitions. [2020-07-20 16:25:19,276 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 218 transitions. Word has length 64 [2020-07-20 16:25:19,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:19,276 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 218 transitions. [2020-07-20 16:25:19,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:19,276 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 218 transitions. [2020-07-20 16:25:19,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 16:25:19,279 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:19,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:19,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:19,494 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:19,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:19,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1171048631, now seen corresponding path program 1 times [2020-07-20 16:25:19,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:19,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918844785] [2020-07-20 16:25:19,496 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:19,894 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:19,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:19,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 16:25:19,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:19,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:19,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:19,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918844785] [2020-07-20 16:25:19,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:19,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:19,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382256960] [2020-07-20 16:25:19,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:19,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:19,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:19,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:19,969 INFO L87 Difference]: Start difference. First operand 195 states and 218 transitions. Second operand 6 states. [2020-07-20 16:25:20,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:20,244 INFO L93 Difference]: Finished difference Result 483 states and 570 transitions. [2020-07-20 16:25:20,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:25:20,245 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-07-20 16:25:20,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:20,255 INFO L225 Difference]: With dead ends: 483 [2020-07-20 16:25:20,255 INFO L226 Difference]: Without dead ends: 312 [2020-07-20 16:25:20,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:25:20,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-07-20 16:25:20,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2020-07-20 16:25:20,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-07-20 16:25:20,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 364 transitions. [2020-07-20 16:25:20,294 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 364 transitions. Word has length 78 [2020-07-20 16:25:20,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:20,295 INFO L479 AbstractCegarLoop]: Abstraction has 312 states and 364 transitions. [2020-07-20 16:25:20,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:20,295 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 364 transitions. [2020-07-20 16:25:20,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-20 16:25:20,297 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:20,298 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:20,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:20,508 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:20,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:20,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1503231471, now seen corresponding path program 1 times [2020-07-20 16:25:20,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:20,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182591533] [2020-07-20 16:25:20,511 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:20,887 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:20,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:20,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:25:20,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:20,938 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-20 16:25:20,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:20,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182591533] [2020-07-20 16:25:20,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:20,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:20,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207801667] [2020-07-20 16:25:20,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:20,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:20,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:20,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:20,941 INFO L87 Difference]: Start difference. First operand 312 states and 364 transitions. Second operand 6 states. [2020-07-20 16:25:20,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:20,990 INFO L93 Difference]: Finished difference Result 614 states and 740 transitions. [2020-07-20 16:25:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:25:20,990 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2020-07-20 16:25:20,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:20,994 INFO L225 Difference]: With dead ends: 614 [2020-07-20 16:25:20,994 INFO L226 Difference]: Without dead ends: 326 [2020-07-20 16:25:20,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:25:20,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-07-20 16:25:21,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 322. [2020-07-20 16:25:21,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-07-20 16:25:21,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 375 transitions. [2020-07-20 16:25:21,022 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 375 transitions. Word has length 141 [2020-07-20 16:25:21,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:21,023 INFO L479 AbstractCegarLoop]: Abstraction has 322 states and 375 transitions. [2020-07-20 16:25:21,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:21,023 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 375 transitions. [2020-07-20 16:25:21,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-20 16:25:21,025 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:21,026 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:21,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:21,239 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:21,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:21,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1474731181, now seen corresponding path program 1 times [2020-07-20 16:25:21,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:21,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2011711203] [2020-07-20 16:25:21,240 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:21,395 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 16:25:21,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:21,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 16:25:21,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:21,466 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-20 16:25:21,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:21,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2011711203] [2020-07-20 16:25:21,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:21,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 16:25:21,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205132376] [2020-07-20 16:25:21,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 16:25:21,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:21,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 16:25:21,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:25:21,469 INFO L87 Difference]: Start difference. First operand 322 states and 375 transitions. Second operand 5 states. [2020-07-20 16:25:21,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:21,500 INFO L93 Difference]: Finished difference Result 594 states and 712 transitions. [2020-07-20 16:25:21,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 16:25:21,500 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-07-20 16:25:21,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:21,503 INFO L225 Difference]: With dead ends: 594 [2020-07-20 16:25:21,503 INFO L226 Difference]: Without dead ends: 296 [2020-07-20 16:25:21,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:25:21,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-07-20 16:25:21,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2020-07-20 16:25:21,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-07-20 16:25:21,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 345 transitions. [2020-07-20 16:25:21,527 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 345 transitions. Word has length 141 [2020-07-20 16:25:21,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:21,527 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 345 transitions. [2020-07-20 16:25:21,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 16:25:21,527 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 345 transitions. [2020-07-20 16:25:21,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-20 16:25:21,529 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:21,530 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:21,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:21,744 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:21,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:21,745 INFO L82 PathProgramCache]: Analyzing trace with hash 946365580, now seen corresponding path program 1 times [2020-07-20 16:25:21,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:21,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307081070] [2020-07-20 16:25:21,746 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:22,001 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 16:25:22,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:22,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 16:25:22,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:22,074 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:22,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:22,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307081070] [2020-07-20 16:25:22,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:22,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:22,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225380232] [2020-07-20 16:25:22,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:22,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:22,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:22,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:22,077 INFO L87 Difference]: Start difference. First operand 296 states and 345 transitions. Second operand 6 states. [2020-07-20 16:25:22,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:22,777 INFO L93 Difference]: Finished difference Result 775 states and 965 transitions. [2020-07-20 16:25:22,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:25:22,778 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2020-07-20 16:25:22,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:22,782 INFO L225 Difference]: With dead ends: 775 [2020-07-20 16:25:22,782 INFO L226 Difference]: Without dead ends: 503 [2020-07-20 16:25:22,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:25:22,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-07-20 16:25:22,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 488. [2020-07-20 16:25:22,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-07-20 16:25:22,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 584 transitions. [2020-07-20 16:25:22,821 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 584 transitions. Word has length 141 [2020-07-20 16:25:22,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:22,821 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 584 transitions. [2020-07-20 16:25:22,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:22,821 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 584 transitions. [2020-07-20 16:25:22,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-20 16:25:22,824 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:22,825 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:23,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:23,039 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:23,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:23,040 INFO L82 PathProgramCache]: Analyzing trace with hash -339330766, now seen corresponding path program 1 times [2020-07-20 16:25:23,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:23,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051974461] [2020-07-20 16:25:23,041 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:23,388 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:23,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:23,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:25:23,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:23,475 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:23,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 16:25:23,833 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 16:25:23,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051974461] [2020-07-20 16:25:23,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 16:25:23,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-20 16:25:23,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199776821] [2020-07-20 16:25:23,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 16:25:23,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:23,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 16:25:23,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-20 16:25:23,836 INFO L87 Difference]: Start difference. First operand 488 states and 584 transitions. Second operand 12 states. [2020-07-20 16:25:25,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:25,463 INFO L93 Difference]: Finished difference Result 1262 states and 1623 transitions. [2020-07-20 16:25:25,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-20 16:25:25,463 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 145 [2020-07-20 16:25:25,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:25,470 INFO L225 Difference]: With dead ends: 1262 [2020-07-20 16:25:25,470 INFO L226 Difference]: Without dead ends: 798 [2020-07-20 16:25:25,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 278 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-20 16:25:25,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-07-20 16:25:25,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 641. [2020-07-20 16:25:25,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2020-07-20 16:25:25,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 758 transitions. [2020-07-20 16:25:25,530 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 758 transitions. Word has length 145 [2020-07-20 16:25:25,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:25,533 INFO L479 AbstractCegarLoop]: Abstraction has 641 states and 758 transitions. [2020-07-20 16:25:25,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 16:25:25,534 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 758 transitions. [2020-07-20 16:25:25,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-07-20 16:25:25,538 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:25,539 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 16:25:25,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:25,754 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:25,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:25,754 INFO L82 PathProgramCache]: Analyzing trace with hash 2105911449, now seen corresponding path program 1 times [2020-07-20 16:25:25,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:25,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1568045727] [2020-07-20 16:25:25,755 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:26,153 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:26,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:26,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-20 16:25:26,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:26,313 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 68 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-07-20 16:25:26,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 16:25:27,211 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 44 proven. 19 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-20 16:25:27,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1568045727] [2020-07-20 16:25:27,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 16:25:27,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2020-07-20 16:25:27,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166566601] [2020-07-20 16:25:27,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-07-20 16:25:27,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:27,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-07-20 16:25:27,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2020-07-20 16:25:27,214 INFO L87 Difference]: Start difference. First operand 641 states and 758 transitions. Second operand 24 states. [2020-07-20 16:25:28,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:28,569 INFO L93 Difference]: Finished difference Result 1773 states and 2148 transitions. [2020-07-20 16:25:28,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-20 16:25:28,570 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 196 [2020-07-20 16:25:28,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:28,579 INFO L225 Difference]: With dead ends: 1773 [2020-07-20 16:25:28,580 INFO L226 Difference]: Without dead ends: 1156 [2020-07-20 16:25:28,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=761, Unknown=0, NotChecked=0, Total=930 [2020-07-20 16:25:28,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2020-07-20 16:25:28,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1149. [2020-07-20 16:25:28,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1149 states. [2020-07-20 16:25:28,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1335 transitions. [2020-07-20 16:25:28,651 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1335 transitions. Word has length 196 [2020-07-20 16:25:28,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:28,652 INFO L479 AbstractCegarLoop]: Abstraction has 1149 states and 1335 transitions. [2020-07-20 16:25:28,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-07-20 16:25:28,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1335 transitions. [2020-07-20 16:25:28,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-20 16:25:28,657 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:28,657 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:28,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:28,873 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:28,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:28,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1296798837, now seen corresponding path program 1 times [2020-07-20 16:25:28,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:28,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095678118] [2020-07-20 16:25:28,875 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:29,403 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:29,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:29,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 16:25:29,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 16:25:29,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:29,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095678118] [2020-07-20 16:25:29,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:29,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 16:25:29,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100999685] [2020-07-20 16:25:29,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 16:25:29,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:29,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 16:25:29,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:25:29,499 INFO L87 Difference]: Start difference. First operand 1149 states and 1335 transitions. Second operand 8 states. [2020-07-20 16:25:29,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:29,943 INFO L93 Difference]: Finished difference Result 2034 states and 2388 transitions. [2020-07-20 16:25:29,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 16:25:29,943 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 200 [2020-07-20 16:25:29,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:29,953 INFO L225 Difference]: With dead ends: 2034 [2020-07-20 16:25:29,953 INFO L226 Difference]: Without dead ends: 1023 [2020-07-20 16:25:29,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:25:29,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2020-07-20 16:25:30,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1020. [2020-07-20 16:25:30,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1020 states. [2020-07-20 16:25:30,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1184 transitions. [2020-07-20 16:25:30,040 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1184 transitions. Word has length 200 [2020-07-20 16:25:30,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:30,041 INFO L479 AbstractCegarLoop]: Abstraction has 1020 states and 1184 transitions. [2020-07-20 16:25:30,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 16:25:30,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1184 transitions. [2020-07-20 16:25:30,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-20 16:25:30,047 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:30,048 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:30,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:30,261 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:30,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:30,261 INFO L82 PathProgramCache]: Analyzing trace with hash -209062211, now seen corresponding path program 2 times [2020-07-20 16:25:30,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:30,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548019051] [2020-07-20 16:25:30,262 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:30,605 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:30,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:30,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:25:30,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:30,663 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-07-20 16:25:30,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:30,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548019051] [2020-07-20 16:25:30,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:30,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:30,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257907735] [2020-07-20 16:25:30,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:30,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:30,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:30,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:30,666 INFO L87 Difference]: Start difference. First operand 1020 states and 1184 transitions. Second operand 6 states. [2020-07-20 16:25:30,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:30,855 INFO L93 Difference]: Finished difference Result 1033 states and 1199 transitions. [2020-07-20 16:25:30,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:25:30,856 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2020-07-20 16:25:30,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:30,863 INFO L225 Difference]: With dead ends: 1033 [2020-07-20 16:25:30,864 INFO L226 Difference]: Without dead ends: 1030 [2020-07-20 16:25:30,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:25:30,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2020-07-20 16:25:30,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1020. [2020-07-20 16:25:30,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1020 states. [2020-07-20 16:25:30,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1181 transitions. [2020-07-20 16:25:30,961 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1181 transitions. Word has length 200 [2020-07-20 16:25:30,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:30,964 INFO L479 AbstractCegarLoop]: Abstraction has 1020 states and 1181 transitions. [2020-07-20 16:25:30,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:30,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1181 transitions. [2020-07-20 16:25:30,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-20 16:25:30,969 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:30,971 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:31,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:31,186 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:31,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:31,186 INFO L82 PathProgramCache]: Analyzing trace with hash -706947900, now seen corresponding path program 1 times [2020-07-20 16:25:31,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:31,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145873144] [2020-07-20 16:25:31,187 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:31,566 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:31,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 16:25:31,566 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 16:25:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 16:25:31,656 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 16:25:31,990 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 16:25:31,990 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 16:25:32,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:32,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:25:32 BoogieIcfgContainer [2020-07-20 16:25:32,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 16:25:32,409 INFO L168 Benchmark]: Toolchain (without parser) took 18818.70 ms. Allocated memory was 140.5 MB in the beginning and 424.7 MB in the end (delta: 284.2 MB). Free memory was 96.5 MB in the beginning and 212.3 MB in the end (delta: -115.8 MB). Peak memory consumption was 168.3 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:32,412 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 140.5 MB. Free memory was 116.7 MB in the beginning and 116.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 16:25:32,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.57 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 96.1 MB in the beginning and 169.2 MB in the end (delta: -73.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:32,414 INFO L168 Benchmark]: Boogie Preprocessor took 92.64 ms. Allocated memory is still 200.8 MB. Free memory was 169.2 MB in the beginning and 165.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:32,416 INFO L168 Benchmark]: RCFGBuilder took 1259.27 ms. Allocated memory was 200.8 MB in the beginning and 224.4 MB in the end (delta: 23.6 MB). Free memory was 165.5 MB in the beginning and 195.5 MB in the end (delta: -30.0 MB). Peak memory consumption was 94.3 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:32,419 INFO L168 Benchmark]: TraceAbstraction took 16776.90 ms. Allocated memory was 224.4 MB in the beginning and 424.7 MB in the end (delta: 200.3 MB). Free memory was 195.5 MB in the beginning and 212.3 MB in the end (delta: -16.8 MB). Peak memory consumption was 183.4 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:32,428 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 140.5 MB. Free memory was 116.7 MB in the beginning and 116.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 681.57 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 96.1 MB in the beginning and 169.2 MB in the end (delta: -73.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.64 ms. Allocated memory is still 200.8 MB. Free memory was 169.2 MB in the beginning and 165.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1259.27 ms. Allocated memory was 200.8 MB in the beginning and 224.4 MB in the end (delta: 23.6 MB). Free memory was 165.5 MB in the beginning and 195.5 MB in the end (delta: -30.0 MB). Peak memory consumption was 94.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16776.90 ms. Allocated memory was 224.4 MB in the beginning and 424.7 MB in the end (delta: 200.3 MB). Free memory was 195.5 MB in the beginning and 212.3 MB in the end (delta: -16.8 MB). Peak memory consumption was 183.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 317]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L117] int pumpRunning = 0; [L118] int systemActive = 1; [L491] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L715] int cleanupTimeShifts = 4; [L814] int waterLevel = 1; [L815] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=37, \old(head)=35, \old(head)=27, \old(methaneLevelCritical)=60, \old(pumpRunning)=59, \old(systemActive)=33, \old(waterLevel)=36, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L791] int retValue_acc ; [L792] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L796] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L797] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L798] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L934] int retValue_acc ; [L937] retValue_acc = 1 [L938] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L798] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L798] tmp = valid_product() [L800] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L802] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L803] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L782] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L45] int splverifierCounter ; [L46] int tmp ; [L47] int tmp___0 ; [L48] int tmp___1 ; [L49] int tmp___2 ; [L52] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L54] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L56] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L62] tmp = __VERIFIER_nondet_int() [L64] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L66] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] COND TRUE waterLevel < 2 [L833] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L66] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L97] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L125] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L134] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L180] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L183] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L198] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L154] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L159] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L294] int retValue_acc ; [L295] int tmp ; [L296] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L300] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L894] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L897] COND FALSE !(waterLevel < 2) [L901] retValue_acc = 0 [L902] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L300] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L300] tmp = isHighWaterSensorDry() [L302] COND FALSE !(\read(tmp)) [L305] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L307] retValue_acc = tmp___0 [L308] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L159] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L159] tmp = isHighWaterLevel() [L161] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L163] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L213] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L217] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L238] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L242] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L217] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L217] tmp = isMethaneAlarm() [L219] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L223] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L208] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L223] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L163] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L198] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L134] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L140] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L690] int tmp ; [L691] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L695] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L695] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L695] tmp = getWaterLevel() [L697] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L140] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L97] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L54] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L56] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=2] [L97] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L125] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L127] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L820] COND TRUE waterLevel > 0 [L821] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L127] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L132] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L134] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L180] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L183] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L185] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L238] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L242] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L242] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L185] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L185] tmp = isMethaneAlarm() [L187] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L193] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L154] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L157] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L172] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L193] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L134] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L140] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L690] int tmp ; [L691] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L695] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L695] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L695] tmp = getWaterLevel() [L697] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L140] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L97] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L54] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L56] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L97] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L125] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L127] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L820] COND TRUE waterLevel > 0 [L821] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L127] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L132] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L134] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L180] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L183] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L185] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L238] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L242] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L242] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L185] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L185] tmp = isMethaneAlarm() [L187] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L193] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L154] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L157] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L172] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L193] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L134] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L140] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L690] int tmp ; [L691] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L695] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L695] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L695] tmp = getWaterLevel() [L697] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L699] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L249] int retValue_acc ; [L252] retValue_acc = pumpRunning [L253] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L699] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L699] tmp___0 = isPumpRunning() [L701] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L703] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L317] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 232 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.5s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2044 SDtfs, 2157 SDslu, 4957 SDs, 0 SdLazy, 3116 SolverSat, 1065 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1812 GetRequests, 1717 SyntacticMatches, 7 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1149occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 211 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1650 NumberOfCodeBlocks, 1356 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 1777 ConstructedInterpolants, 0 QuantifiedInterpolants, 461531 SizeOfPredicates, 41 NumberOfNonLiveVariables, 8858 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 559/604 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 incorrect! Received shutdown request...