/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --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 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 00:58:43,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 00:58:43,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 00:58:43,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 00:58:43,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 00:58:43,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 00:58:43,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 00:58:43,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 00:58:43,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 00:58:43,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 00:58:43,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 00:58:43,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 00:58:43,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 00:58:43,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 00:58:43,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 00:58:43,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 00:58:43,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 00:58:43,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 00:58:43,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 00:58:43,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 00:58:43,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 00:58:43,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 00:58:43,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 00:58:43,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 00:58:43,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 00:58:43,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 00:58:43,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 00:58:43,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 00:58:43,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 00:58:43,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 00:58:43,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 00:58:43,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 00:58:43,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 00:58:43,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 00:58:43,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 00:58:43,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 00:58:43,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 00:58:43,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 00:58:43,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 00:58:43,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 00:58:43,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 00:58:43,243 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 00:58:43,267 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 00:58:43,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 00:58:43,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 00:58:43,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 00:58:43,270 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 00:58:43,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 00:58:43,270 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 00:58:43,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 00:58:43,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 00:58:43,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 00:58:43,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 00:58:43,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 00:58:43,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 00:58:43,272 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 00:58:43,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 00:58:43,273 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 00:58:43,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 00:58:43,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 00:58:43,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 00:58:43,274 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 00:58:43,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 00:58:43,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 00:58:43,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 00:58:43,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 00:58:43,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 00:58:43,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 00:58:43,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 00:58:43,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 00:58:43,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 00:58:43,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 00:58:43,564 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 00:58:43,579 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 00:58:43,583 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 00:58:43,585 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 00:58:43,587 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 00:58:43,588 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-07-20 00:58:43,661 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3d7e1c29/506095cadb14415d884801868964d57e/FLAGd8b026437 [2020-07-20 00:58:44,199 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 00:58:44,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-07-20 00:58:44,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3d7e1c29/506095cadb14415d884801868964d57e/FLAGd8b026437 [2020-07-20 00:58:44,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3d7e1c29/506095cadb14415d884801868964d57e [2020-07-20 00:58:44,504 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 00:58:44,507 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 00:58:44,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 00:58:44,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 00:58:44,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 00:58:44,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:58:44" (1/1) ... [2020-07-20 00:58:44,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50fbe825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:44, skipping insertion in model container [2020-07-20 00:58:44,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:58:44" (1/1) ... [2020-07-20 00:58:44,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 00:58:44,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 00:58:44,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 00:58:44,940 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 00:58:45,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 00:58:45,216 INFO L208 MainTranslator]: Completed translation [2020-07-20 00:58:45,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:45 WrapperNode [2020-07-20 00:58:45,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 00:58:45,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 00:58:45,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 00:58:45,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 00:58:45,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:45" (1/1) ... [2020-07-20 00:58:45,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:45" (1/1) ... [2020-07-20 00:58:45,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:45" (1/1) ... [2020-07-20 00:58:45,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:45" (1/1) ... [2020-07-20 00:58:45,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:45" (1/1) ... [2020-07-20 00:58:45,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:45" (1/1) ... [2020-07-20 00:58:45,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:45" (1/1) ... [2020-07-20 00:58:45,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 00:58:45,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 00:58:45,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 00:58:45,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 00:58:45,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:45" (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 00:58:45,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 00:58:45,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 00:58:45,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 00:58:45,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 00:58:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 00:58:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 00:58:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 00:58:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 00:58:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 00:58:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 00:58:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 00:58:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 00:58:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 00:58:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 00:58:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 00:58:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 00:58:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 00:58:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 00:58:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 00:58:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-07-20 00:58:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 00:58:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 00:58:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 00:58:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 00:58:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 00:58:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 00:58:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 00:58:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 00:58:45,390 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 00:58:45,390 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 00:58:45,390 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 00:58:45,390 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 00:58:45,390 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 00:58:45,390 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 00:58:45,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 00:58:45,391 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 00:58:45,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 00:58:45,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-20 00:58:45,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 00:58:45,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 00:58:45,391 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 00:58:45,392 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 00:58:45,392 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 00:58:45,392 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 00:58:45,392 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 00:58:45,392 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 00:58:45,392 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 00:58:45,392 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 00:58:45,392 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 00:58:45,393 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 00:58:45,393 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 00:58:45,393 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 00:58:45,393 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 00:58:45,393 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 00:58:45,393 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 00:58:45,393 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 00:58:45,394 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 00:58:45,394 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 00:58:45,394 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 00:58:45,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 00:58:45,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 00:58:45,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 00:58:45,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 00:58:45,395 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 00:58:45,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 00:58:45,395 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 00:58:45,395 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 00:58:45,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 00:58:45,396 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 00:58:45,396 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 00:58:45,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 00:58:45,396 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 00:58:45,396 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 00:58:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 00:58:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 00:58:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 00:58:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 00:58:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 00:58:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 00:58:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 00:58:45,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-20 00:58:45,398 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 00:58:45,398 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 00:58:45,398 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 00:58:45,398 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-07-20 00:58:45,398 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 00:58:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 00:58:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 00:58:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 00:58:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 00:58:46,570 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 00:58:46,570 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 00:58:46,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:58:46 BoogieIcfgContainer [2020-07-20 00:58:46,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 00:58:46,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 00:58:46,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 00:58:46,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 00:58:46,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:58:44" (1/3) ... [2020-07-20 00:58:46,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252735fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:58:46, skipping insertion in model container [2020-07-20 00:58:46,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:45" (2/3) ... [2020-07-20 00:58:46,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252735fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:58:46, skipping insertion in model container [2020-07-20 00:58:46,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:58:46" (3/3) ... [2020-07-20 00:58:46,585 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2020-07-20 00:58:46,597 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 00:58:46,606 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 00:58:46,622 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 00:58:46,650 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 00:58:46,651 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 00:58:46,651 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 00:58:46,651 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 00:58:46,652 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 00:58:46,652 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 00:58:46,652 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 00:58:46,652 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 00:58:46,678 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-07-20 00:58:46,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 00:58:46,693 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:46,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 00:58:46,695 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:46,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:46,702 INFO L82 PathProgramCache]: Analyzing trace with hash -490913979, now seen corresponding path program 1 times [2020-07-20 00:58:46,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:46,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127190296] [2020-07-20 00:58:46,714 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@21d80eef [2020-07-20 00:58:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:47,394 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:58:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:47,554 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 00:58:47,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127190296] [2020-07-20 00:58:47,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:58:47,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 00:58:47,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602575177] [2020-07-20 00:58:47,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 00:58:47,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:47,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 00:58:47,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 00:58:47,580 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-07-20 00:58:48,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:48,718 INFO L93 Difference]: Finished difference Result 272 states and 360 transitions. [2020-07-20 00:58:48,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 00:58:48,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 00:58:48,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:48,735 INFO L225 Difference]: With dead ends: 272 [2020-07-20 00:58:48,736 INFO L226 Difference]: Without dead ends: 148 [2020-07-20 00:58:48,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 00:58:48,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-07-20 00:58:48,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 115. [2020-07-20 00:58:48,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-07-20 00:58:48,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2020-07-20 00:58:48,836 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2020-07-20 00:58:48,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:48,837 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2020-07-20 00:58:48,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 00:58:48,837 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2020-07-20 00:58:48,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 00:58:48,842 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:48,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 00:58:48,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 00:58:48,843 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:48,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:48,843 INFO L82 PathProgramCache]: Analyzing trace with hash 30555541, now seen corresponding path program 1 times [2020-07-20 00:58:48,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:48,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182934589] [2020-07-20 00:58:48,844 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@21d80eef [2020-07-20 00:58:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:49,179 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:58:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:49,231 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 00:58:49,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182934589] [2020-07-20 00:58:49,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:58:49,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 00:58:49,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812592175] [2020-07-20 00:58:49,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 00:58:49,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:49,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 00:58:49,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 00:58:49,235 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 4 states. [2020-07-20 00:58:49,642 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:58:50,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:50,347 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2020-07-20 00:58:50,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 00:58:50,348 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-20 00:58:50,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:50,350 INFO L225 Difference]: With dead ends: 195 [2020-07-20 00:58:50,351 INFO L226 Difference]: Without dead ends: 132 [2020-07-20 00:58:50,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 00:58:50,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-07-20 00:58:50,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 106. [2020-07-20 00:58:50,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-07-20 00:58:50,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2020-07-20 00:58:50,392 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 53 [2020-07-20 00:58:50,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:50,393 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2020-07-20 00:58:50,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 00:58:50,393 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2020-07-20 00:58:50,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-20 00:58:50,395 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:50,395 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] [2020-07-20 00:58:50,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 00:58:50,396 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:50,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:50,396 INFO L82 PathProgramCache]: Analyzing trace with hash -150591273, now seen corresponding path program 1 times [2020-07-20 00:58:50,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:50,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620163555] [2020-07-20 00:58:50,397 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@21d80eef [2020-07-20 00:58:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:50,705 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:58:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:50,843 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 00:58:50,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620163555] [2020-07-20 00:58:50,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:58:50,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 00:58:50,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176311870] [2020-07-20 00:58:50,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 00:58:50,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:50,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 00:58:50,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-20 00:58:50,846 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 8 states. [2020-07-20 00:58:51,214 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:58:51,548 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:51,825 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:52,077 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:52,810 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:58:54,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:54,326 INFO L93 Difference]: Finished difference Result 375 states and 467 transitions. [2020-07-20 00:58:54,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 00:58:54,327 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-07-20 00:58:54,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:54,332 INFO L225 Difference]: With dead ends: 375 [2020-07-20 00:58:54,332 INFO L226 Difference]: Without dead ends: 293 [2020-07-20 00:58:54,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-20 00:58:54,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-07-20 00:58:54,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 232. [2020-07-20 00:58:54,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-07-20 00:58:54,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 281 transitions. [2020-07-20 00:58:54,405 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 281 transitions. Word has length 58 [2020-07-20 00:58:54,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:54,405 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 281 transitions. [2020-07-20 00:58:54,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 00:58:54,405 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 281 transitions. [2020-07-20 00:58:54,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 00:58:54,409 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:54,409 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] [2020-07-20 00:58:54,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 00:58:54,409 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:54,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:54,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1860592830, now seen corresponding path program 1 times [2020-07-20 00:58:54,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:54,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099341284] [2020-07-20 00:58:54,411 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@21d80eef [2020-07-20 00:58:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:54,711 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:58:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:54,792 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 00:58:54,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099341284] [2020-07-20 00:58:54,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:58:54,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 00:58:54,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342684782] [2020-07-20 00:58:54,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 00:58:54,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:54,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 00:58:54,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-20 00:58:54,795 INFO L87 Difference]: Start difference. First operand 232 states and 281 transitions. Second operand 8 states. [2020-07-20 00:58:55,194 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:58:56,435 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:56,739 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:56,997 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:57,237 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:58:57,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:57,828 INFO L93 Difference]: Finished difference Result 711 states and 941 transitions. [2020-07-20 00:58:57,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 00:58:57,829 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-07-20 00:58:57,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:57,835 INFO L225 Difference]: With dead ends: 711 [2020-07-20 00:58:57,835 INFO L226 Difference]: Without dead ends: 503 [2020-07-20 00:58:57,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-20 00:58:57,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-07-20 00:58:57,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 437. [2020-07-20 00:58:57,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-20 00:58:57,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 543 transitions. [2020-07-20 00:58:57,947 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 543 transitions. Word has length 63 [2020-07-20 00:58:57,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:57,947 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 543 transitions. [2020-07-20 00:58:57,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 00:58:57,948 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 543 transitions. [2020-07-20 00:58:57,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-20 00:58:57,952 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:57,952 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] [2020-07-20 00:58:57,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 00:58:57,953 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:57,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:57,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1880541084, now seen corresponding path program 1 times [2020-07-20 00:58:57,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:57,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194444009] [2020-07-20 00:58:57,954 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@21d80eef [2020-07-20 00:58:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 00:58:58,007 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 00:58:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 00:58:58,054 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 00:58:58,123 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 00:58:58,123 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 00:58:58,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 00:58:58,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 12:58:58 BoogieIcfgContainer [2020-07-20 00:58:58,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 00:58:58,277 INFO L168 Benchmark]: Toolchain (without parser) took 13770.68 ms. Allocated memory was 146.3 MB in the beginning and 461.9 MB in the end (delta: 315.6 MB). Free memory was 102.9 MB in the beginning and 263.4 MB in the end (delta: -160.5 MB). Peak memory consumption was 155.1 MB. Max. memory is 7.1 GB. [2020-07-20 00:58:58,278 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 00:58:58,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.78 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.7 MB in the beginning and 174.1 MB in the end (delta: -71.4 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-07-20 00:58:58,280 INFO L168 Benchmark]: Boogie Preprocessor took 86.04 ms. Allocated memory is still 203.9 MB. Free memory was 174.1 MB in the beginning and 169.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-20 00:58:58,281 INFO L168 Benchmark]: RCFGBuilder took 1272.36 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 169.9 MB in the beginning and 200.8 MB in the end (delta: -30.9 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. [2020-07-20 00:58:58,283 INFO L168 Benchmark]: TraceAbstraction took 11697.24 ms. Allocated memory was 237.0 MB in the beginning and 461.9 MB in the end (delta: 224.9 MB). Free memory was 199.4 MB in the beginning and 263.4 MB in the end (delta: -64.1 MB). Peak memory consumption was 160.9 MB. Max. memory is 7.1 GB. [2020-07-20 00:58:58,291 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.78 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.7 MB in the beginning and 174.1 MB in the end (delta: -71.4 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.04 ms. Allocated memory is still 203.9 MB. Free memory was 174.1 MB in the beginning and 169.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1272.36 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 169.9 MB in the beginning and 200.8 MB in the end (delta: -30.9 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11697.24 ms. Allocated memory was 237.0 MB in the beginning and 461.9 MB in the end (delta: 224.9 MB). Free memory was 199.4 MB in the beginning and 263.4 MB in the end (delta: -64.1 MB). Peak memory consumption was 160.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; [L322] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=170, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=146, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] int retValue_acc ; [L131] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L135] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L136] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L137] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L796] int retValue_acc ; [L799] retValue_acc = 1 [L800] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L137] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L141] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L142] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] int splverifierCounter ; [L523] int tmp ; [L524] int tmp___0 ; [L525] int tmp___1 ; [L526] int tmp___2 ; [L529] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L531] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L533] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L539] tmp = __VERIFIER_nondet_int() [L541] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L543] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] COND TRUE waterLevel < 2 [L825] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L543] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L549] tmp___0 = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L559] tmp___2 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___2)) [L567] tmp___1 = __VERIFIER_nondet_int() [L569] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L571] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L750] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L757] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L571] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L578] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L604] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L611] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L619] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L887] int tmp ; [L888] int tmp___0 ; [L889] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L893] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L893] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L893] tmp = isMethaneLevelCritical() [L895] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L899] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L877] int retValue_acc ; [L880] retValue_acc = waterLevel [L881] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L899] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L899] tmp___0 = getWaterLevel() [L901] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L903] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L702] int retValue_acc ; [L705] retValue_acc = pumpRunning [L706] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L903] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L903] tmp___1 = isPumpRunning() [L905] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L909] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L44] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 444 SDtfs, 645 SDslu, 348 SDs, 0 SdLazy, 1681 SolverSat, 433 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=437occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 62058 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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...