/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 11:27:35,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 11:27:35,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 11:27:35,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 11:27:35,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 11:27:35,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 11:27:35,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 11:27:35,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 11:27:35,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 11:27:35,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 11:27:35,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 11:27:35,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 11:27:35,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 11:27:35,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 11:27:35,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 11:27:35,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 11:27:35,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 11:27:35,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 11:27:35,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 11:27:35,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 11:27:35,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 11:27:35,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 11:27:35,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 11:27:35,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 11:27:35,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 11:27:35,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 11:27:35,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 11:27:35,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 11:27:35,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 11:27:35,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 11:27:35,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 11:27:35,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 11:27:35,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 11:27:35,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 11:27:35,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 11:27:35,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 11:27:35,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 11:27:35,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 11:27:35,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 11:27:35,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 11:27:35,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 11:27:35,227 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 [2020-07-17 11:27:35,243 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 11:27:35,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 11:27:35,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 11:27:35,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 11:27:35,245 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 11:27:35,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 11:27:35,246 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 11:27:35,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 11:27:35,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 11:27:35,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 11:27:35,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 11:27:35,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 11:27:35,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 11:27:35,248 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 11:27:35,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 11:27:35,249 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 11:27:35,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 11:27:35,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 11:27:35,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 11:27:35,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 11:27:35,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 11:27:35,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:27:35,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 11:27:35,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 11:27:35,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 11:27:35,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 11:27:35,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 11:27:35,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 11:27:35,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 11:27:35,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 11:27:35,528 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 11:27:35,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 11:27:35,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 11:27:35,549 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 11:27:35,550 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 11:27:35,551 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-07-17 11:27:35,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438f4112b/61cecc3e6df141b7b6f5fcc5f83a210a/FLAG4aaa65d77 [2020-07-17 11:27:36,167 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 11:27:36,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-07-17 11:27:36,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438f4112b/61cecc3e6df141b7b6f5fcc5f83a210a/FLAG4aaa65d77 [2020-07-17 11:27:36,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438f4112b/61cecc3e6df141b7b6f5fcc5f83a210a [2020-07-17 11:27:36,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 11:27:36,499 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 11:27:36,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 11:27:36,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 11:27:36,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 11:27:36,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:27:36" (1/1) ... [2020-07-17 11:27:36,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@232e780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:36, skipping insertion in model container [2020-07-17 11:27:36,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:27:36" (1/1) ... [2020-07-17 11:27:36,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 11:27:36,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 11:27:36,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:27:36,973 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 11:27:37,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:27:37,173 INFO L208 MainTranslator]: Completed translation [2020-07-17 11:27:37,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:37 WrapperNode [2020-07-17 11:27:37,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 11:27:37,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 11:27:37,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 11:27:37,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 11:27:37,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:37" (1/1) ... [2020-07-17 11:27:37,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:37" (1/1) ... [2020-07-17 11:27:37,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:37" (1/1) ... [2020-07-17 11:27:37,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:37" (1/1) ... [2020-07-17 11:27:37,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:37" (1/1) ... [2020-07-17 11:27:37,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:37" (1/1) ... [2020-07-17 11:27:37,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:37" (1/1) ... [2020-07-17 11:27:37,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 11:27:37,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 11:27:37,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 11:27:37,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 11:27:37,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:37" (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 [2020-07-17 11:27:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 11:27:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 11:27:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 11:27:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 11:27:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 11:27:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 11:27:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 11:27:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 11:27:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 11:27:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 11:27:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 11:27:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 11:27:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 11:27:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 11:27:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 11:27:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-17 11:27:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 11:27:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 11:27:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 11:27:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 11:27:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-17 11:27:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 11:27:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 11:27:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 11:27:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 11:27:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 11:27:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-17 11:27:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-17 11:27:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 11:27:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-17 11:27:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 11:27:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 11:27:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 11:27:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 11:27:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 11:27:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 11:27:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 11:27:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 11:27:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 11:27:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 11:27:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 11:27:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 11:27:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 11:27:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 11:27:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 11:27:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 11:27:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 11:27:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 11:27:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 11:27:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 11:27:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 11:27:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 11:27:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 11:27:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 11:27:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 11:27:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 11:27:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 11:27:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 11:27:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 11:27:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 11:27:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 11:27:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 11:27:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 11:27:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 11:27:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 11:27:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-17 11:27:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-17 11:27:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 11:27:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 11:27:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 11:27:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 11:27:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 11:27:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 11:27:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 11:27:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-17 11:27:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 11:27:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 11:27:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-17 11:27:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-17 11:27:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 11:27:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 11:27:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 11:27:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 11:27:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 11:27:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 11:27:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 11:27:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 11:27:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 11:27:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 11:27:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 11:27:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 11:27:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 11:27:38,344 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 11:27:38,344 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 11:27:38,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:27:38 BoogieIcfgContainer [2020-07-17 11:27:38,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 11:27:38,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 11:27:38,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 11:27:38,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 11:27:38,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:27:36" (1/3) ... [2020-07-17 11:27:38,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3e99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:27:38, skipping insertion in model container [2020-07-17 11:27:38,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:37" (2/3) ... [2020-07-17 11:27:38,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3e99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:27:38, skipping insertion in model container [2020-07-17 11:27:38,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:27:38" (3/3) ... [2020-07-17 11:27:38,358 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2020-07-17 11:27:38,369 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 11:27:38,378 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 11:27:38,393 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 11:27:38,418 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 11:27:38,418 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 11:27:38,419 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 11:27:38,419 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 11:27:38,419 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 11:27:38,419 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 11:27:38,419 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 11:27:38,420 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 11:27:38,443 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2020-07-17 11:27:38,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-17 11:27:38,452 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:27:38,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:27:38,454 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:27:38,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:27:38,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1542772809, now seen corresponding path program 1 times [2020-07-17 11:27:38,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:27:38,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423994115] [2020-07-17 11:27:38,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:27:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:39,105 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:27:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:39,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:27:39,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423994115] [2020-07-17 11:27:39,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:27:39,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 11:27:39,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459192502] [2020-07-17 11:27:39,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 11:27:39,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:27:39,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 11:27:39,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:27:39,236 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 3 states. [2020-07-17 11:27:40,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:27:40,397 INFO L93 Difference]: Finished difference Result 284 states and 371 transitions. [2020-07-17 11:27:40,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 11:27:40,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-17 11:27:40,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:27:40,421 INFO L225 Difference]: With dead ends: 284 [2020-07-17 11:27:40,421 INFO L226 Difference]: Without dead ends: 154 [2020-07-17 11:27:40,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:27:40,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-07-17 11:27:40,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 121. [2020-07-17 11:27:40,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-07-17 11:27:40,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2020-07-17 11:27:40,554 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 46 [2020-07-17 11:27:40,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:27:40,554 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2020-07-17 11:27:40,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 11:27:40,555 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2020-07-17 11:27:40,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-17 11:27:40,559 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:27:40,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:27:40,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 11:27:40,560 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:27:40,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:27:40,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1355296267, now seen corresponding path program 1 times [2020-07-17 11:27:40,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:27:40,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148586890] [2020-07-17 11:27:40,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:27:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:40,869 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:27:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:40,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:27:40,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148586890] [2020-07-17 11:27:40,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:27:40,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 11:27:40,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984480261] [2020-07-17 11:27:40,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 11:27:40,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:27:40,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 11:27:40,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 11:27:40,945 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 4 states. [2020-07-17 11:27:41,384 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:27:42,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:27:42,171 INFO L93 Difference]: Finished difference Result 213 states and 258 transitions. [2020-07-17 11:27:42,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 11:27:42,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-17 11:27:42,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:27:42,175 INFO L225 Difference]: With dead ends: 213 [2020-07-17 11:27:42,176 INFO L226 Difference]: Without dead ends: 138 [2020-07-17 11:27:42,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 11:27:42,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-07-17 11:27:42,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 112. [2020-07-17 11:27:42,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-07-17 11:27:42,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 129 transitions. [2020-07-17 11:27:42,215 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 129 transitions. Word has length 47 [2020-07-17 11:27:42,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:27:42,216 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 129 transitions. [2020-07-17 11:27:42,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 11:27:42,216 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 129 transitions. [2020-07-17 11:27:42,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-17 11:27:42,218 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:27:42,218 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] [2020-07-17 11:27:42,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 11:27:42,219 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:27:42,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:27:42,219 INFO L82 PathProgramCache]: Analyzing trace with hash 604849678, now seen corresponding path program 1 times [2020-07-17 11:27:42,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:27:42,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925729471] [2020-07-17 11:27:42,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:27:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:42,536 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:27:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:42,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:27:42,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925729471] [2020-07-17 11:27:42,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:27:42,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:27:42,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159649007] [2020-07-17 11:27:42,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:27:42,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:27:42,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:27:42,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:27:42,632 INFO L87 Difference]: Start difference. First operand 112 states and 129 transitions. Second operand 8 states. [2020-07-17 11:27:43,061 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:27:43,355 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:27:43,616 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:27:43,877 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:27:44,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:27:44,935 INFO L93 Difference]: Finished difference Result 226 states and 276 transitions. [2020-07-17 11:27:44,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 11:27:44,936 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-07-17 11:27:44,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:27:44,940 INFO L225 Difference]: With dead ends: 226 [2020-07-17 11:27:44,940 INFO L226 Difference]: Without dead ends: 138 [2020-07-17 11:27:44,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-17 11:27:44,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-07-17 11:27:44,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 112. [2020-07-17 11:27:44,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-07-17 11:27:44,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 128 transitions. [2020-07-17 11:27:44,970 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 128 transitions. Word has length 52 [2020-07-17 11:27:44,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:27:44,970 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 128 transitions. [2020-07-17 11:27:44,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:27:44,971 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 128 transitions. [2020-07-17 11:27:44,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-17 11:27:44,973 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:27:44,973 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] [2020-07-17 11:27:44,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 11:27:44,973 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:27:44,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:27:44,974 INFO L82 PathProgramCache]: Analyzing trace with hash 2012335283, now seen corresponding path program 1 times [2020-07-17 11:27:44,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:27:44,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078900015] [2020-07-17 11:27:44,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:27:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:45,294 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:27:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:27:45,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078900015] [2020-07-17 11:27:45,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:27:45,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 11:27:45,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850277891] [2020-07-17 11:27:45,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 11:27:45,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:27:45,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 11:27:45,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-17 11:27:45,416 INFO L87 Difference]: Start difference. First operand 112 states and 128 transitions. Second operand 6 states. [2020-07-17 11:27:45,786 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:27:47,006 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:27:47,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:27:47,583 INFO L93 Difference]: Finished difference Result 314 states and 386 transitions. [2020-07-17 11:27:47,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 11:27:47,586 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-07-17 11:27:47,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:27:47,589 INFO L225 Difference]: With dead ends: 314 [2020-07-17 11:27:47,590 INFO L226 Difference]: Without dead ends: 226 [2020-07-17 11:27:47,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-07-17 11:27:47,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-07-17 11:27:47,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 183. [2020-07-17 11:27:47,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-07-17 11:27:47,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 209 transitions. [2020-07-17 11:27:47,637 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 209 transitions. Word has length 60 [2020-07-17 11:27:47,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:27:47,638 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 209 transitions. [2020-07-17 11:27:47,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 11:27:47,638 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 209 transitions. [2020-07-17 11:27:47,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-17 11:27:47,640 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:27:47,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:27:47,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 11:27:47,641 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:27:47,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:27:47,641 INFO L82 PathProgramCache]: Analyzing trace with hash 471487289, now seen corresponding path program 1 times [2020-07-17 11:27:47,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:27:47,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513360739] [2020-07-17 11:27:47,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:27:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:47,901 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:27:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:48,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:27:48,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513360739] [2020-07-17 11:27:48,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:27:48,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:27:48,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451991666] [2020-07-17 11:27:48,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:27:48,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:27:48,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:27:48,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:27:48,006 INFO L87 Difference]: Start difference. First operand 183 states and 209 transitions. Second operand 8 states. [2020-07-17 11:27:48,480 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:27:49,530 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:27:49,842 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:27:50,355 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:27:50,589 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:27:50,863 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:27:51,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:27:51,627 INFO L93 Difference]: Finished difference Result 547 states and 678 transitions. [2020-07-17 11:27:51,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 11:27:51,628 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-07-17 11:27:51,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:27:51,636 INFO L225 Difference]: With dead ends: 547 [2020-07-17 11:27:51,636 INFO L226 Difference]: Without dead ends: 388 [2020-07-17 11:27:51,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-07-17 11:27:51,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-07-17 11:27:51,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 321. [2020-07-17 11:27:51,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-07-17 11:27:51,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 368 transitions. [2020-07-17 11:27:51,743 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 368 transitions. Word has length 74 [2020-07-17 11:27:51,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:27:51,744 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 368 transitions. [2020-07-17 11:27:51,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:27:51,744 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 368 transitions. [2020-07-17 11:27:51,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-17 11:27:51,747 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:27:51,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:27:51,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 11:27:51,747 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:27:51,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:27:51,748 INFO L82 PathProgramCache]: Analyzing trace with hash -968585995, now seen corresponding path program 1 times [2020-07-17 11:27:51,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:27:51,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504670136] [2020-07-17 11:27:51,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:27:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:52,012 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:27:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:52,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:27:52,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504670136] [2020-07-17 11:27:52,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:27:52,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 11:27:52,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857751604] [2020-07-17 11:27:52,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 11:27:52,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:27:52,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 11:27:52,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-17 11:27:52,108 INFO L87 Difference]: Start difference. First operand 321 states and 368 transitions. Second operand 9 states. [2020-07-17 11:27:52,549 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:27:53,652 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:27:53,929 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:27:54,781 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:27:55,053 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:27:55,279 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:27:55,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:27:55,504 INFO L93 Difference]: Finished difference Result 430 states and 544 transitions. [2020-07-17 11:27:55,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-17 11:27:55,504 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-07-17 11:27:55,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:27:55,508 INFO L225 Difference]: With dead ends: 430 [2020-07-17 11:27:55,508 INFO L226 Difference]: Without dead ends: 427 [2020-07-17 11:27:55,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-07-17 11:27:55,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-07-17 11:27:55,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 321. [2020-07-17 11:27:55,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-07-17 11:27:55,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 367 transitions. [2020-07-17 11:27:55,579 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 367 transitions. Word has length 78 [2020-07-17 11:27:55,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:27:55,580 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 367 transitions. [2020-07-17 11:27:55,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 11:27:55,580 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 367 transitions. [2020-07-17 11:27:55,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-17 11:27:55,582 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:27:55,583 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:27:55,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 11:27:55,583 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:27:55,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:27:55,584 INFO L82 PathProgramCache]: Analyzing trace with hash 662445521, now seen corresponding path program 1 times [2020-07-17 11:27:55,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:27:55,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888704645] [2020-07-17 11:27:55,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:27:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,826 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:27:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:55,986 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-17 11:27:55,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888704645] [2020-07-17 11:27:55,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:27:55,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 11:27:55,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085581192] [2020-07-17 11:27:55,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 11:27:55,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:27:55,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 11:27:55,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-17 11:27:55,992 INFO L87 Difference]: Start difference. First operand 321 states and 367 transitions. Second operand 9 states. [2020-07-17 11:27:57,059 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:27:57,299 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 11:27:57,532 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:27:57,771 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:27:58,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:27:58,699 INFO L93 Difference]: Finished difference Result 732 states and 917 transitions. [2020-07-17 11:27:58,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 11:27:58,704 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-07-17 11:27:58,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:27:58,707 INFO L225 Difference]: With dead ends: 732 [2020-07-17 11:27:58,707 INFO L226 Difference]: Without dead ends: 435 [2020-07-17 11:27:58,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-07-17 11:27:58,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-07-17 11:27:58,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 331. [2020-07-17 11:27:58,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-07-17 11:27:58,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 377 transitions. [2020-07-17 11:27:58,777 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 377 transitions. Word has length 94 [2020-07-17 11:27:58,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:27:58,778 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 377 transitions. [2020-07-17 11:27:58,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 11:27:58,778 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 377 transitions. [2020-07-17 11:27:58,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-17 11:27:58,780 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:27:58,780 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:27:58,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 11:27:58,781 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:27:58,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:27:58,781 INFO L82 PathProgramCache]: Analyzing trace with hash -234947757, now seen corresponding path program 1 times [2020-07-17 11:27:58,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:27:58,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705735715] [2020-07-17 11:27:58,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:27:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,041 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:27:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:27:59,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-17 11:27:59,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705735715] [2020-07-17 11:27:59,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:27:59,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-17 11:27:59,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531178802] [2020-07-17 11:27:59,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 11:27:59,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:27:59,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 11:27:59,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-17 11:27:59,174 INFO L87 Difference]: Start difference. First operand 331 states and 377 transitions. Second operand 11 states. [2020-07-17 11:27:59,750 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:00,000 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:00,233 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:00,821 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:01,053 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:01,279 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:02,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:28:02,326 INFO L93 Difference]: Finished difference Result 752 states and 939 transitions. [2020-07-17 11:28:02,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 11:28:02,328 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 94 [2020-07-17 11:28:02,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:28:02,334 INFO L225 Difference]: With dead ends: 752 [2020-07-17 11:28:02,334 INFO L226 Difference]: Without dead ends: 445 [2020-07-17 11:28:02,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-07-17 11:28:02,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-07-17 11:28:02,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 339. [2020-07-17 11:28:02,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-07-17 11:28:02,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 385 transitions. [2020-07-17 11:28:02,407 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 385 transitions. Word has length 94 [2020-07-17 11:28:02,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:28:02,408 INFO L479 AbstractCegarLoop]: Abstraction has 339 states and 385 transitions. [2020-07-17 11:28:02,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 11:28:02,408 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 385 transitions. [2020-07-17 11:28:02,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-17 11:28:02,412 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:28:02,412 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:28:02,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 11:28:02,412 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:28:02,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:28:02,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1735991700, now seen corresponding path program 1 times [2020-07-17 11:28:02,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:28:02,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528100117] [2020-07-17 11:28:02,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:28:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,697 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:28:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,814 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-17 11:28:02,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528100117] [2020-07-17 11:28:02,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:28:02,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 11:28:02,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968174192] [2020-07-17 11:28:02,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 11:28:02,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:28:02,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 11:28:02,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 11:28:02,816 INFO L87 Difference]: Start difference. First operand 339 states and 385 transitions. Second operand 7 states. [2020-07-17 11:28:03,226 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:28:03,734 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:28:05,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:28:05,714 INFO L93 Difference]: Finished difference Result 1074 states and 1381 transitions. [2020-07-17 11:28:05,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 11:28:05,715 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2020-07-17 11:28:05,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:28:05,720 INFO L225 Difference]: With dead ends: 1074 [2020-07-17 11:28:05,720 INFO L226 Difference]: Without dead ends: 759 [2020-07-17 11:28:05,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-07-17 11:28:05,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2020-07-17 11:28:05,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 639. [2020-07-17 11:28:05,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2020-07-17 11:28:05,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 751 transitions. [2020-07-17 11:28:05,878 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 751 transitions. Word has length 94 [2020-07-17 11:28:05,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:28:05,879 INFO L479 AbstractCegarLoop]: Abstraction has 639 states and 751 transitions. [2020-07-17 11:28:05,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 11:28:05,879 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 751 transitions. [2020-07-17 11:28:05,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-17 11:28:05,882 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:28:05,882 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:28:05,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 11:28:05,883 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:28:05,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:28:05,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1966005102, now seen corresponding path program 1 times [2020-07-17 11:28:05,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:28:05,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155100489] [2020-07-17 11:28:05,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:28:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,194 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:28:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,502 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 11:28:06,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155100489] [2020-07-17 11:28:06,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889642187] [2020-07-17 11:28:06,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:28:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:06,690 INFO L264 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-17 11:28:06,703 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 11:28:06,886 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:28:06,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 11:28:06,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2020-07-17 11:28:06,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052548016] [2020-07-17 11:28:06,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:28:06,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:28:06,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:28:06,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2020-07-17 11:28:06,889 INFO L87 Difference]: Start difference. First operand 639 states and 751 transitions. Second operand 8 states. [2020-07-17 11:28:07,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:28:07,322 INFO L93 Difference]: Finished difference Result 1222 states and 1445 transitions. [2020-07-17 11:28:07,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 11:28:07,322 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-07-17 11:28:07,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:28:07,326 INFO L225 Difference]: With dead ends: 1222 [2020-07-17 11:28:07,327 INFO L226 Difference]: Without dead ends: 607 [2020-07-17 11:28:07,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2020-07-17 11:28:07,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-07-17 11:28:07,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2020-07-17 11:28:07,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-07-17 11:28:07,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 700 transitions. [2020-07-17 11:28:07,456 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 700 transitions. Word has length 98 [2020-07-17 11:28:07,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:28:07,457 INFO L479 AbstractCegarLoop]: Abstraction has 607 states and 700 transitions. [2020-07-17 11:28:07,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:28:07,457 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 700 transitions. [2020-07-17 11:28:07,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-17 11:28:07,461 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:28:07,461 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:28:07,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-17 11:28:07,675 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:28:07,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:28:07,676 INFO L82 PathProgramCache]: Analyzing trace with hash 451842310, now seen corresponding path program 1 times [2020-07-17 11:28:07,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:28:07,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003614438] [2020-07-17 11:28:07,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:28:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:28:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:28:08,025 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 11:28:08,026 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 11:28:08,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-17 11:28:08,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:28:08 BoogieIcfgContainer [2020-07-17 11:28:08,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 11:28:08,271 INFO L168 Benchmark]: Toolchain (without parser) took 31773.48 ms. Allocated memory was 137.9 MB in the beginning and 596.6 MB in the end (delta: 458.8 MB). Free memory was 101.3 MB in the beginning and 97.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 463.0 MB. Max. memory is 7.1 GB. [2020-07-17 11:28:08,272 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 11:28:08,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.39 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 170.6 MB in the end (delta: -69.8 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-07-17 11:28:08,273 INFO L168 Benchmark]: Boogie Preprocessor took 114.13 ms. Allocated memory is still 202.4 MB. Free memory was 170.6 MB in the beginning and 166.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-17 11:28:08,274 INFO L168 Benchmark]: RCFGBuilder took 1059.41 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 166.5 MB in the beginning and 196.5 MB in the end (delta: -30.0 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. [2020-07-17 11:28:08,274 INFO L168 Benchmark]: TraceAbstraction took 29918.47 ms. Allocated memory was 234.4 MB in the beginning and 596.6 MB in the end (delta: 362.3 MB). Free memory was 196.5 MB in the beginning and 97.1 MB in the end (delta: 99.4 MB). Peak memory consumption was 461.7 MB. Max. memory is 7.1 GB. [2020-07-17 11:28:08,277 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 673.39 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 170.6 MB in the end (delta: -69.8 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.13 ms. Allocated memory is still 202.4 MB. Free memory was 170.6 MB in the beginning and 166.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1059.41 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 166.5 MB in the beginning and 196.5 MB in the end (delta: -30.0 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29918.47 ms. Allocated memory was 234.4 MB in the beginning and 596.6 MB in the end (delta: 362.3 MB). Free memory was 196.5 MB in the beginning and 97.1 MB in the end (delta: 99.4 MB). Peak memory consumption was 461.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 764]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L581] int pumpRunning = 0; [L582] int systemActive = 1; [L833] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=170, \old(head)=160, \old(head)=176, \old(methaneLevelCritical)=144, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] int retValue_acc ; [L907] 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] [L911] 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] [L912] 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] [L913] 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] [L824] int retValue_acc ; [L827] retValue_acc = 1 [L828] 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] [L913] 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] [L913] tmp = valid_product() [L915] 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] [L917] 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] [L918] 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] [L900] 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] [L511] int splverifierCounter ; [L512] int tmp ; [L513] int tmp___0 ; [L514] int tmp___1 ; [L515] int tmp___2 ; [L518] 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] [L520] 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] [L522] 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] [L528] tmp = __VERIFIER_nondet_int() [L530] 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] [L532] 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] [L431] COND TRUE waterLevel < 2 [L432] 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] [L532] 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] [L538] tmp___0 = __VERIFIER_nondet_int() [L540] 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] [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___2)) [L556] tmp___1 = __VERIFIER_nondet_int() [L558] 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] [L565] 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=1, waterLevel=2] [L589] 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=1, waterLevel=2] [L596] COND TRUE \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=1, waterLevel=2] [L598] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L621] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L733] int retValue_acc ; [L734] int tmp ; [L735] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L739] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L493] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] COND FALSE !(waterLevel < 2) [L500] retValue_acc = 0 [L501] 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=1, waterLevel=2] [L739] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L739] tmp = isHighWaterSensorDry() [L741] COND FALSE !(\read(tmp)) [L744] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L746] retValue_acc = tmp___0 [L747] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L623] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] tmp = isHighWaterLevel() [L625] COND TRUE \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=1, tmp=1, waterLevel=2] [L627] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L652] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L656] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L677] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L681] 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=1, waterLevel=2] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] 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=1, waterLevel=2] [L681] 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=1, waterLevel=2] [L681] retValue_acc = isMethaneLevelCritical() [L683] 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=1, waterLevel=2] [L656] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L656] tmp = isMethaneAlarm() [L658] 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=1, tmp=0, waterLevel=2] [L662] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L646] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L662] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L627] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L598] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L604] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L770] int tmp ; [L771] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L775] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] 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=1, retValue_acc=0, systemActive=1, waterLevel=2] [L775] 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=1, systemActive=1, waterLevel=2] [L775] tmp = isMethaneLevelCritical() [L777] 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=1, systemActive=1, tmp=0, waterLevel=2] [L604] RET __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L565] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L520] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L522] 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=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L528] tmp = __VERIFIER_nondet_int() [L530] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L538] tmp___0 = __VERIFIER_nondet_int() [L540] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L542] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L443] COND FALSE !(\read(methaneLevelCritical)) [L446] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L542] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___2)) [L556] tmp___1 = __VERIFIER_nondet_int() [L558] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L565] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L589] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L591] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L419] COND TRUE waterLevel > 0 [L420] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L591] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L596] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L598] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L636] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L598] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L604] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L770] int tmp ; [L771] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L775] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L775] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L775] tmp = isMethaneLevelCritical() [L777] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L779] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L688] int retValue_acc ; [L691] retValue_acc = pumpRunning [L692] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L779] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L779] tmp___0 = isPumpRunning() [L781] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L783] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L764] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 226 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.6s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 23.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1248 SDtfs, 1668 SDslu, 1766 SDs, 0 SdLazy, 4905 SolverSat, 1042 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 460 GetRequests, 343 SyntacticMatches, 4 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=639occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 631 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 969 NumberOfCodeBlocks, 969 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 824 ConstructedInterpolants, 0 QuantifiedInterpolants, 252063 SizeOfPredicates, 3 NumberOfNonLiveVariables, 772 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 13/15 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...