/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_FUNCTIONS --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_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 22:49:44,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 22:49:44,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 22:49:44,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 22:49:44,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 22:49:44,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 22:49:44,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 22:49:44,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 22:49:44,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 22:49:44,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 22:49:44,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 22:49:44,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 22:49:44,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 22:49:44,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 22:49:44,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 22:49:44,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 22:49:44,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 22:49:44,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 22:49:44,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 22:49:44,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 22:49:44,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 22:49:44,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 22:49:44,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 22:49:44,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 22:49:44,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 22:49:44,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 22:49:44,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 22:49:44,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 22:49:44,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 22:49:44,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 22:49:44,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 22:49:44,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 22:49:44,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 22:49:44,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 22:49:44,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 22:49:44,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 22:49:44,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 22:49:44,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 22:49:44,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 22:49:44,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 22:49:44,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 22:49:44,254 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 [2020-07-19 22:49:44,274 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 22:49:44,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 22:49:44,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 22:49:44,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 22:49:44,276 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 22:49:44,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 22:49:44,277 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 22:49:44,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 22:49:44,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 22:49:44,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 22:49:44,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 22:49:44,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 22:49:44,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 22:49:44,279 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 22:49:44,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 22:49:44,280 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 22:49:44,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 22:49:44,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 22:49:44,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 22:49:44,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 22:49:44,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 22:49:44,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 22:49:44,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 22:49:44,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 22:49:44,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 22:49:44,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 22:49:44,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 22:49:44,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 22:49:44,282 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 22:49:44,283 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_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 22:49:44,564 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 22:49:44,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 22:49:44,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 22:49:44,581 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 22:49:44,581 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 22:49:44,582 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-07-19 22:49:44,643 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21fc0dd50/237e2dae2d984fbd9f888513e6c999ac/FLAG392cfd533 [2020-07-19 22:49:45,079 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 22:49:45,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-07-19 22:49:45,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21fc0dd50/237e2dae2d984fbd9f888513e6c999ac/FLAG392cfd533 [2020-07-19 22:49:45,393 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21fc0dd50/237e2dae2d984fbd9f888513e6c999ac [2020-07-19 22:49:45,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 22:49:45,407 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 22:49:45,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 22:49:45,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 22:49:45,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 22:49:45,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:49:45" (1/1) ... [2020-07-19 22:49:45,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7401199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:49:45, skipping insertion in model container [2020-07-19 22:49:45,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:49:45" (1/1) ... [2020-07-19 22:49:45,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 22:49:45,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 22:49:45,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:49:45,917 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 22:49:46,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:49:46,060 INFO L208 MainTranslator]: Completed translation [2020-07-19 22:49:46,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:49:46 WrapperNode [2020-07-19 22:49:46,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 22:49:46,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 22:49:46,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 22:49:46,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 22:49:46,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:49:46" (1/1) ... [2020-07-19 22:49:46,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:49:46" (1/1) ... [2020-07-19 22:49:46,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:49:46" (1/1) ... [2020-07-19 22:49:46,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:49:46" (1/1) ... [2020-07-19 22:49:46,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:49:46" (1/1) ... [2020-07-19 22:49:46,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:49:46" (1/1) ... [2020-07-19 22:49:46,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:49:46" (1/1) ... [2020-07-19 22:49:46,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 22:49:46,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 22:49:46,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 22:49:46,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 22:49:46,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:49:46" (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 [2020-07-19 22:49:46,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 22:49:46,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 22:49:46,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 22:49:46,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-19 22:49:46,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 22:49:46,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 22:49:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 22:49:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 22:49:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 22:49:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 22:49:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 22:49:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 22:49:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 22:49:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 22:49:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 22:49:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 22:49:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 22:49:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 22:49:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 22:49:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 22:49:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 22:49:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 22:49:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 22:49:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 22:49:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 22:49:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 22:49:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-19 22:49:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-19 22:49:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 22:49:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 22:49:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 22:49:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 22:49:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 22:49:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 22:49:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 22:49:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 22:49:46,210 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 22:49:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 22:49:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 22:49:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 22:49:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 22:49:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 22:49:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 22:49:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 22:49:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-19 22:49:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 22:49:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 22:49:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 22:49:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 22:49:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 22:49:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 22:49:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 22:49:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 22:49:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 22:49:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 22:49:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 22:49:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 22:49:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 22:49:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 22:49:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 22:49:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 22:49:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 22:49:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 22:49:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 22:49:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 22:49:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 22:49:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-19 22:49:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-19 22:49:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 22:49:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 22:49:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 22:49:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 22:49:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 22:49:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 22:49:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 22:49:46,216 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 22:49:46,216 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 22:49:46,216 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 22:49:46,216 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 22:49:46,216 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 22:49:46,216 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 22:49:46,217 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 22:49:46,217 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 22:49:46,217 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 22:49:46,217 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 22:49:46,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 22:49:46,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 22:49:46,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 22:49:47,209 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 22:49:47,210 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 22:49:47,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:49:47 BoogieIcfgContainer [2020-07-19 22:49:47,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 22:49:47,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 22:49:47,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 22:49:47,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 22:49:47,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:49:45" (1/3) ... [2020-07-19 22:49:47,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b1c62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:49:47, skipping insertion in model container [2020-07-19 22:49:47,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:49:46" (2/3) ... [2020-07-19 22:49:47,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b1c62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:49:47, skipping insertion in model container [2020-07-19 22:49:47,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:49:47" (3/3) ... [2020-07-19 22:49:47,228 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-07-19 22:49:47,238 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 22:49:47,248 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 22:49:47,262 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 22:49:47,291 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 22:49:47,291 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 22:49:47,291 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 22:49:47,292 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 22:49:47,292 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 22:49:47,292 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 22:49:47,293 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 22:49:47,293 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 22:49:47,313 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2020-07-19 22:49:47,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 22:49:47,321 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:49:47,322 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] [2020-07-19 22:49:47,322 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:49:47,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:49:47,328 INFO L82 PathProgramCache]: Analyzing trace with hash 2078323826, now seen corresponding path program 1 times [2020-07-19 22:49:47,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:49:47,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781685590] [2020-07-19 22:49:47,336 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2b0e819e [2020-07-19 22:49:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:47,939 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:49:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:48,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:49:48,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781685590] [2020-07-19 22:49:48,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:49:48,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 22:49:48,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356772935] [2020-07-19 22:49:48,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 22:49:48,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:49:48,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 22:49:48,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:49:48,081 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 3 states. [2020-07-19 22:49:49,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:49:49,137 INFO L93 Difference]: Finished difference Result 272 states and 360 transitions. [2020-07-19 22:49:49,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 22:49:49,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-19 22:49:49,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:49:49,153 INFO L225 Difference]: With dead ends: 272 [2020-07-19 22:49:49,153 INFO L226 Difference]: Without dead ends: 148 [2020-07-19 22:49:49,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:49:49,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-07-19 22:49:49,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 115. [2020-07-19 22:49:49,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-07-19 22:49:49,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2020-07-19 22:49:49,269 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2020-07-19 22:49:49,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:49:49,270 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2020-07-19 22:49:49,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 22:49:49,270 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2020-07-19 22:49:49,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-19 22:49:49,282 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:49:49,282 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] [2020-07-19 22:49:49,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 22:49:49,283 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:49:49,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:49:49,283 INFO L82 PathProgramCache]: Analyzing trace with hash 883286197, now seen corresponding path program 1 times [2020-07-19 22:49:49,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:49:49,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963030852] [2020-07-19 22:49:49,285 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2b0e819e [2020-07-19 22:49:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:49,606 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:49:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:49,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:49:49,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963030852] [2020-07-19 22:49:49,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:49:49,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 22:49:49,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444432190] [2020-07-19 22:49:49,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 22:49:49,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:49:49,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 22:49:49,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 22:49:49,652 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 4 states. [2020-07-19 22:49:50,071 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:49:50,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:49:50,810 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2020-07-19 22:49:50,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 22:49:50,810 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-19 22:49:50,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:49:50,813 INFO L225 Difference]: With dead ends: 195 [2020-07-19 22:49:50,813 INFO L226 Difference]: Without dead ends: 132 [2020-07-19 22:49:50,814 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 [2020-07-19 22:49:50,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-07-19 22:49:50,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 106. [2020-07-19 22:49:50,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-07-19 22:49:50,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2020-07-19 22:49:50,846 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 53 [2020-07-19 22:49:50,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:49:50,847 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2020-07-19 22:49:50,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 22:49:50,847 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2020-07-19 22:49:50,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-19 22:49:50,849 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:49:50,849 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] [2020-07-19 22:49:50,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 22:49:50,850 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:49:50,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:49:50,850 INFO L82 PathProgramCache]: Analyzing trace with hash -2055351283, now seen corresponding path program 1 times [2020-07-19 22:49:50,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:49:50,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313921310] [2020-07-19 22:49:50,851 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2b0e819e [2020-07-19 22:49:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:51,160 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:49:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:51,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:51,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:49:51,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313921310] [2020-07-19 22:49:51,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:49:51,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 22:49:51,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698996258] [2020-07-19 22:49:51,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 22:49:51,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:49:51,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 22:49:51,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 22:49:51,239 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 8 states. [2020-07-19 22:49:51,562 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:49:51,868 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:49:52,104 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:49:52,323 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:49:53,031 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:49:54,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:49:54,418 INFO L93 Difference]: Finished difference Result 375 states and 467 transitions. [2020-07-19 22:49:54,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 22:49:54,419 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-07-19 22:49:54,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:49:54,424 INFO L225 Difference]: With dead ends: 375 [2020-07-19 22:49:54,424 INFO L226 Difference]: Without dead ends: 293 [2020-07-19 22:49:54,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-19 22:49:54,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-07-19 22:49:54,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 232. [2020-07-19 22:49:54,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-07-19 22:49:54,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 281 transitions. [2020-07-19 22:49:54,498 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 281 transitions. Word has length 58 [2020-07-19 22:49:54,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:49:54,499 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 281 transitions. [2020-07-19 22:49:54,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 22:49:54,499 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 281 transitions. [2020-07-19 22:49:54,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-19 22:49:54,501 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:49:54,501 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] [2020-07-19 22:49:54,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 22:49:54,501 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:49:54,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:49:54,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1417899682, now seen corresponding path program 1 times [2020-07-19 22:49:54,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:49:54,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943610036] [2020-07-19 22:49:54,503 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2b0e819e [2020-07-19 22:49:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:54,799 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:49:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:49:54,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:49:54,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943610036] [2020-07-19 22:49:54,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:49:54,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 22:49:54,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324479690] [2020-07-19 22:49:54,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 22:49:54,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:49:54,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 22:49:54,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 22:49:54,903 INFO L87 Difference]: Start difference. First operand 232 states and 281 transitions. Second operand 8 states. [2020-07-19 22:49:55,294 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:49:56,500 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:49:56,798 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:49:57,037 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:49:57,268 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:49:57,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:49:57,855 INFO L93 Difference]: Finished difference Result 711 states and 941 transitions. [2020-07-19 22:49:57,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 22:49:57,856 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-07-19 22:49:57,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:49:57,862 INFO L225 Difference]: With dead ends: 711 [2020-07-19 22:49:57,863 INFO L226 Difference]: Without dead ends: 503 [2020-07-19 22:49:57,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-19 22:49:57,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-07-19 22:49:57,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 437. [2020-07-19 22:49:57,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-19 22:49:57,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 543 transitions. [2020-07-19 22:49:57,979 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 543 transitions. Word has length 63 [2020-07-19 22:49:57,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:49:57,979 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 543 transitions. [2020-07-19 22:49:57,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 22:49:57,980 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 543 transitions. [2020-07-19 22:49:57,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-19 22:49:57,982 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:49:57,982 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] [2020-07-19 22:49:57,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 22:49:57,983 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:49:57,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:49:57,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1714463836, now seen corresponding path program 1 times [2020-07-19 22:49:57,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:49:57,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531409952] [2020-07-19 22:49:57,984 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2b0e819e [2020-07-19 22:49:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:49:58,036 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:49:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:49:58,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:49:58,145 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 22:49:58,146 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 22:49:58,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 22:49:58,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:49:58 BoogieIcfgContainer [2020-07-19 22:49:58,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 22:49:58,259 INFO L168 Benchmark]: Toolchain (without parser) took 12853.78 ms. Allocated memory was 135.8 MB in the beginning and 453.0 MB in the end (delta: 317.2 MB). Free memory was 99.9 MB in the beginning and 307.1 MB in the end (delta: -207.1 MB). Peak memory consumption was 110.1 MB. Max. memory is 7.1 GB. [2020-07-19 22:49:58,260 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 135.8 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 22:49:58,261 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.22 ms. Allocated memory was 135.8 MB in the beginning and 200.8 MB in the end (delta: 65.0 MB). Free memory was 99.5 MB in the beginning and 171.0 MB in the end (delta: -71.5 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2020-07-19 22:49:58,262 INFO L168 Benchmark]: Boogie Preprocessor took 80.73 ms. Allocated memory is still 200.8 MB. Free memory was 171.0 MB in the beginning and 166.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-19 22:49:58,263 INFO L168 Benchmark]: RCFGBuilder took 1074.53 ms. Allocated memory was 200.8 MB in the beginning and 228.6 MB in the end (delta: 27.8 MB). Free memory was 166.6 MB in the beginning and 198.1 MB in the end (delta: -31.5 MB). Peak memory consumption was 90.8 MB. Max. memory is 7.1 GB. [2020-07-19 22:49:58,267 INFO L168 Benchmark]: TraceAbstraction took 11039.29 ms. Allocated memory was 228.6 MB in the beginning and 453.0 MB in the end (delta: 224.4 MB). Free memory was 198.1 MB in the beginning and 307.1 MB in the end (delta: -109.0 MB). Peak memory consumption was 115.4 MB. Max. memory is 7.1 GB. [2020-07-19 22:49:58,270 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 135.8 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 651.22 ms. Allocated memory was 135.8 MB in the beginning and 200.8 MB in the end (delta: 65.0 MB). Free memory was 99.5 MB in the beginning and 171.0 MB in the end (delta: -71.5 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.73 ms. Allocated memory is still 200.8 MB. Free memory was 171.0 MB in the beginning and 166.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1074.53 ms. Allocated memory was 200.8 MB in the beginning and 228.6 MB in the end (delta: 27.8 MB). Free memory was 166.6 MB in the beginning and 198.1 MB in the end (delta: -31.5 MB). Peak memory consumption was 90.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11039.29 ms. Allocated memory was 228.6 MB in the beginning and 453.0 MB in the end (delta: 224.4 MB). Free memory was 198.1 MB in the beginning and 307.1 MB in the end (delta: -109.0 MB). Peak memory consumption was 115.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L807] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=161, \old(methaneLevelCritical)=145, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L880] int retValue_acc ; [L881] 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] [L885] 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] [L886] 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] [L887] 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] [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] 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] [L887] 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] [L887] tmp = valid_product() [L889] 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] [L891] 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] [L892] 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] [L874] 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] [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] 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] [L551] 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] [L553] 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] [L559] tmp = __VERIFIER_nondet_int() [L561] 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] [L563] 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] [L466] COND TRUE waterLevel < 2 [L467] 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] [L563] 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] [L569] tmp___0 = __VERIFIER_nondet_int() [L571] 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] [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___2)) [L587] tmp___1 = __VERIFIER_nondet_int() [L589] 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=-2, tmp___2=0, waterLevel=2] [L591] 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] [L749] 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] [L756] 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] [L591] 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=-2, tmp___2=0, waterLevel=2] [L598] 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] [L620] 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] [L627] 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] [L635] 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] [L45] int tmp ; [L46] int tmp___0 ; [L47] 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] [L51] 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] [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] 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] [L51] 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] [L51] tmp = isMethaneLevelCritical() [L53] 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] [L57] 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] [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] 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] [L57] 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] [L57] tmp___0 = getWaterLevel() [L59] 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] [L61] 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] [L701] int retValue_acc ; [L704] retValue_acc = pumpRunning [L705] 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] [L61] 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] [L61] tmp___1 = isPumpRunning() [L63] 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] [L67] 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] [L532] __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 37 procedures, 217 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 443 SDtfs, 588 SDslu, 376 SDs, 0 SdLazy, 1727 SolverSat, 371 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.3s 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s 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...