/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:12:04,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:12:04,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:12:04,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:12:04,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:12:04,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:12:04,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:12:04,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:12:04,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:12:04,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:12:04,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:12:04,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:12:04,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:12:04,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:12:04,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:12:04,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:12:04,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:12:04,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:12:04,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:12:04,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:12:04,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:12:04,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:12:04,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:12:04,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:12:04,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 21:12:04,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 21:12:04,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 21:12:04,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 21:12:04,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 21:12:04,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 21:12:04,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:12:04,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:12:04,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:12:04,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:12:04,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:12:04,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:12:04,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:12:04,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:12:04,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:12:04,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:12:04,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:12:04,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:12:04,324 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:12:04,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:12:04,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:12:04,327 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:12:04,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:12:04,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:12:04,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:12:04,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:12:04,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:12:04,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:12:04,329 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:12:04,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:12:04,330 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:12:04,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:12:04,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:12:04,330 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:12:04,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:12:04,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:12:04,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:12:04,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:12:04,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:12:04,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:12:04,332 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 21:12:04,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:12:04,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:12:04,627 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:12:04,630 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:12:04,631 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:12:04,631 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2020-08-22 21:12:04,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d8437152/8cbf29c8a012434eb7a2c32a6ee34128/FLAG99ab8be14 [2020-08-22 21:12:05,244 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:12:05,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2020-08-22 21:12:05,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d8437152/8cbf29c8a012434eb7a2c32a6ee34128/FLAG99ab8be14 [2020-08-22 21:12:05,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d8437152/8cbf29c8a012434eb7a2c32a6ee34128 [2020-08-22 21:12:05,554 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:12:05,556 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:12:05,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:12:05,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:12:05,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:12:05,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:12:05" (1/1) ... [2020-08-22 21:12:05,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@415d1520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:05, skipping insertion in model container [2020-08-22 21:12:05,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:12:05" (1/1) ... [2020-08-22 21:12:05,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:12:05,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:12:06,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:12:06,038 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:12:06,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:12:06,161 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:12:06,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:06 WrapperNode [2020-08-22 21:12:06,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:12:06,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:12:06,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:12:06,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:12:06,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:06" (1/1) ... [2020-08-22 21:12:06,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:06" (1/1) ... [2020-08-22 21:12:06,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:06" (1/1) ... [2020-08-22 21:12:06,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:06" (1/1) ... [2020-08-22 21:12:06,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:06" (1/1) ... [2020-08-22 21:12:06,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:06" (1/1) ... [2020-08-22 21:12:06,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:06" (1/1) ... [2020-08-22 21:12:06,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:12:06,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:12:06,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:12:06,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:12:06,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:12:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:12:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:12:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 21:12:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 21:12:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 21:12:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 21:12:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 21:12:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:12:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 21:12:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 21:12:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 21:12:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 21:12:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 21:12:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 21:12:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 21:12:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 21:12:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 21:12:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 21:12:06,329 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 21:12:06,329 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 21:12:06,329 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 21:12:06,329 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 21:12:06,331 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 21:12:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 21:12:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 21:12:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 21:12:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 21:12:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 21:12:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 21:12:06,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 21:12:06,333 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 21:12:06,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 21:12:06,333 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 21:12:06,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-08-22 21:12:06,334 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 21:12:06,334 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 21:12:06,334 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 21:12:06,334 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 21:12:06,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:12:06,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 21:12:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 21:12:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 21:12:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 21:12:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 21:12:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 21:12:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 21:12:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 21:12:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 21:12:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 21:12:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 21:12:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 21:12:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 21:12:06,337 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 21:12:06,337 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:12:06,337 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 21:12:06,337 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 21:12:06,337 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 21:12:06,337 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 21:12:06,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 21:12:06,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 21:12:06,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:12:06,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 21:12:06,338 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 21:12:06,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:12:06,338 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 21:12:06,338 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 21:12:06,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:12:06,339 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 21:12:06,339 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 21:12:06,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:12:06,341 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 21:12:06,341 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 21:12:06,341 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 21:12:06,341 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 21:12:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 21:12:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 21:12:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 21:12:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 21:12:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 21:12:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 21:12:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 21:12:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-08-22 21:12:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 21:12:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 21:12:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 21:12:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 21:12:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 21:12:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:12:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 21:12:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:12:07,385 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:12:07,385 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 21:12:07,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:12:07 BoogieIcfgContainer [2020-08-22 21:12:07,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:12:07,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:12:07,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:12:07,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:12:07,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:12:05" (1/3) ... [2020-08-22 21:12:07,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea61a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:12:07, skipping insertion in model container [2020-08-22 21:12:07,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:06" (2/3) ... [2020-08-22 21:12:07,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea61a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:12:07, skipping insertion in model container [2020-08-22 21:12:07,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:12:07" (3/3) ... [2020-08-22 21:12:07,407 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2020-08-22 21:12:07,418 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:12:07,429 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:12:07,442 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:12:07,461 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:12:07,461 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:12:07,461 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:12:07,461 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:12:07,462 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:12:07,462 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:12:07,462 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:12:07,462 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:12:07,483 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states. [2020-08-22 21:12:07,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-08-22 21:12:07,502 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:07,503 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:07,504 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:07,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:07,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1579336434, now seen corresponding path program 1 times [2020-08-22 21:12:07,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:07,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168963006] [2020-08-22 21:12:07,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:08,185 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:08,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:08,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:08,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:08,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:08,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:08,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 21:12:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:08,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-08-22 21:12:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:08,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:08,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168963006] [2020-08-22 21:12:08,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:08,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 21:12:08,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906120100] [2020-08-22 21:12:08,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 21:12:08,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:08,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 21:12:08,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 21:12:08,404 INFO L87 Difference]: Start difference. First operand 288 states. Second operand 3 states. [2020-08-22 21:12:09,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:09,808 INFO L93 Difference]: Finished difference Result 428 states and 511 transitions. [2020-08-22 21:12:09,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 21:12:09,811 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-08-22 21:12:09,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:09,829 INFO L225 Difference]: With dead ends: 428 [2020-08-22 21:12:09,829 INFO L226 Difference]: Without dead ends: 271 [2020-08-22 21:12:09,834 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 [2020-08-22 21:12:09,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-08-22 21:12:09,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 231. [2020-08-22 21:12:09,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-08-22 21:12:09,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 249 transitions. [2020-08-22 21:12:09,963 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 249 transitions. Word has length 142 [2020-08-22 21:12:09,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:09,964 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 249 transitions. [2020-08-22 21:12:09,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 21:12:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 249 transitions. [2020-08-22 21:12:09,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-08-22 21:12:09,968 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:09,969 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:09,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:12:09,969 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:09,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:09,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1721031810, now seen corresponding path program 1 times [2020-08-22 21:12:09,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:09,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685918029] [2020-08-22 21:12:09,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:10,378 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:10,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:10,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:10,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:10,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:10,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:10,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:12:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:10,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:12:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:10,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:10,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685918029] [2020-08-22 21:12:10,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:10,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:12:10,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987514652] [2020-08-22 21:12:10,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:12:10,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:10,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:12:10,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:12:10,490 INFO L87 Difference]: Start difference. First operand 231 states and 249 transitions. Second operand 4 states. [2020-08-22 21:12:11,083 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:11,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:11,823 INFO L93 Difference]: Finished difference Result 341 states and 382 transitions. [2020-08-22 21:12:11,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 21:12:11,824 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-08-22 21:12:11,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:11,828 INFO L225 Difference]: With dead ends: 341 [2020-08-22 21:12:11,829 INFO L226 Difference]: Without dead ends: 254 [2020-08-22 21:12:11,833 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 [2020-08-22 21:12:11,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-08-22 21:12:11,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 221. [2020-08-22 21:12:11,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-08-22 21:12:11,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 236 transitions. [2020-08-22 21:12:11,904 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 236 transitions. Word has length 143 [2020-08-22 21:12:11,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:11,905 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 236 transitions. [2020-08-22 21:12:11,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:12:11,905 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 236 transitions. [2020-08-22 21:12:11,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-08-22 21:12:11,908 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:11,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:11,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:12:11,908 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:11,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:11,909 INFO L82 PathProgramCache]: Analyzing trace with hash -637816119, now seen corresponding path program 1 times [2020-08-22 21:12:11,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:11,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708931293] [2020-08-22 21:12:11,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:12,241 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:12,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:12,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:12,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:12,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:12,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:12,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 21:12:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:12,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 21:12:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:12,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-22 21:12:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:12,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:12,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708931293] [2020-08-22 21:12:12,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:12,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 21:12:12,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854336570] [2020-08-22 21:12:12,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 21:12:12,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:12,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 21:12:12,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 21:12:12,374 INFO L87 Difference]: Start difference. First operand 221 states and 236 transitions. Second operand 10 states. [2020-08-22 21:12:13,013 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:12:13,454 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:12:13,687 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:12:13,912 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:14,157 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:12:14,407 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:15,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:15,775 INFO L93 Difference]: Finished difference Result 387 states and 444 transitions. [2020-08-22 21:12:15,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 21:12:15,776 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-08-22 21:12:15,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:15,784 INFO L225 Difference]: With dead ends: 387 [2020-08-22 21:12:15,784 INFO L226 Difference]: Without dead ends: 276 [2020-08-22 21:12:15,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-08-22 21:12:15,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-08-22 21:12:15,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 221. [2020-08-22 21:12:15,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-08-22 21:12:15,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 235 transitions. [2020-08-22 21:12:15,851 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 235 transitions. Word has length 156 [2020-08-22 21:12:15,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:15,852 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 235 transitions. [2020-08-22 21:12:15,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 21:12:15,853 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 235 transitions. [2020-08-22 21:12:15,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-08-22 21:12:15,855 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:15,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:15,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:12:15,856 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:15,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:15,856 INFO L82 PathProgramCache]: Analyzing trace with hash 2046958432, now seen corresponding path program 1 times [2020-08-22 21:12:15,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:15,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412815295] [2020-08-22 21:12:15,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:16,166 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:16,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:16,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:16,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:16,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:16,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:16,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 21:12:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:16,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:12:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:16,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:12:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:16,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 21:12:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:16,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-08-22 21:12:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:16,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:16,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412815295] [2020-08-22 21:12:16,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:16,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 21:12:16,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200922453] [2020-08-22 21:12:16,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 21:12:16,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:16,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 21:12:16,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 21:12:16,331 INFO L87 Difference]: Start difference. First operand 221 states and 235 transitions. Second operand 7 states. [2020-08-22 21:12:16,876 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:12:18,433 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:19,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:19,047 INFO L93 Difference]: Finished difference Result 558 states and 661 transitions. [2020-08-22 21:12:19,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 21:12:19,049 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-08-22 21:12:19,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:19,054 INFO L225 Difference]: With dead ends: 558 [2020-08-22 21:12:19,055 INFO L226 Difference]: Without dead ends: 447 [2020-08-22 21:12:19,056 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-08-22 21:12:19,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-08-22 21:12:19,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 320. [2020-08-22 21:12:19,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-08-22 21:12:19,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 344 transitions. [2020-08-22 21:12:19,176 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 344 transitions. Word has length 164 [2020-08-22 21:12:19,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:19,177 INFO L479 AbstractCegarLoop]: Abstraction has 320 states and 344 transitions. [2020-08-22 21:12:19,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 21:12:19,177 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 344 transitions. [2020-08-22 21:12:19,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-08-22 21:12:19,180 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:19,180 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:19,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:12:19,181 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:19,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:19,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1320660125, now seen corresponding path program 1 times [2020-08-22 21:12:19,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:19,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025225928] [2020-08-22 21:12:19,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,487 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:19,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 21:12:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:12:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:12:19,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:12:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:12:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-08-22 21:12:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-08-22 21:12:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:19,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025225928] [2020-08-22 21:12:19,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:19,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 21:12:19,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993392280] [2020-08-22 21:12:19,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 21:12:19,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:19,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 21:12:19,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 21:12:19,703 INFO L87 Difference]: Start difference. First operand 320 states and 344 transitions. Second operand 10 states. [2020-08-22 21:12:20,181 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:12:21,659 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:21,910 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:12:22,166 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:22,403 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:12:22,649 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:12:22,907 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:23,149 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:23,503 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:24,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:24,638 INFO L93 Difference]: Finished difference Result 929 states and 1131 transitions. [2020-08-22 21:12:24,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 21:12:24,643 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 188 [2020-08-22 21:12:24,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:24,649 INFO L225 Difference]: With dead ends: 929 [2020-08-22 21:12:24,649 INFO L226 Difference]: Without dead ends: 719 [2020-08-22 21:12:24,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-08-22 21:12:24,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-08-22 21:12:24,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 493. [2020-08-22 21:12:24,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2020-08-22 21:12:24,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 536 transitions. [2020-08-22 21:12:24,816 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 536 transitions. Word has length 188 [2020-08-22 21:12:24,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:24,817 INFO L479 AbstractCegarLoop]: Abstraction has 493 states and 536 transitions. [2020-08-22 21:12:24,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 21:12:24,817 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 536 transitions. [2020-08-22 21:12:24,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-08-22 21:12:24,820 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:24,820 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:24,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 21:12:24,820 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:24,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:24,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1373705450, now seen corresponding path program 1 times [2020-08-22 21:12:24,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:24,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176025426] [2020-08-22 21:12:24,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:25,091 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:25,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:25,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:25,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:25,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:25,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:25,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 21:12:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:25,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 21:12:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:25,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 21:12:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:25,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:12:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:25,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:12:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:25,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:12:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:25,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-08-22 21:12:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:25,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-08-22 21:12:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:25,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:25,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176025426] [2020-08-22 21:12:25,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:25,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 21:12:25,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222039217] [2020-08-22 21:12:25,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 21:12:25,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:25,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 21:12:25,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-08-22 21:12:25,261 INFO L87 Difference]: Start difference. First operand 493 states and 536 transitions. Second operand 11 states. [2020-08-22 21:12:25,830 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:12:27,220 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:27,417 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:12:27,659 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:12:27,909 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:28,175 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:28,450 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:12:28,685 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:28,969 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:30,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:30,171 INFO L93 Difference]: Finished difference Result 854 states and 1063 transitions. [2020-08-22 21:12:30,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-22 21:12:30,172 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 193 [2020-08-22 21:12:30,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:30,180 INFO L225 Difference]: With dead ends: 854 [2020-08-22 21:12:30,180 INFO L226 Difference]: Without dead ends: 851 [2020-08-22 21:12:30,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2020-08-22 21:12:30,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2020-08-22 21:12:30,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 493. [2020-08-22 21:12:30,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2020-08-22 21:12:30,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 535 transitions. [2020-08-22 21:12:30,382 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 535 transitions. Word has length 193 [2020-08-22 21:12:30,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:30,382 INFO L479 AbstractCegarLoop]: Abstraction has 493 states and 535 transitions. [2020-08-22 21:12:30,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 21:12:30,382 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 535 transitions. [2020-08-22 21:12:30,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-08-22 21:12:30,385 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:30,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:30,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 21:12:30,386 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:30,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:30,386 INFO L82 PathProgramCache]: Analyzing trace with hash -386837977, now seen corresponding path program 1 times [2020-08-22 21:12:30,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:30,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684582181] [2020-08-22 21:12:30,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:30,654 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:30,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:30,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:30,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:30,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:30,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:30,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 21:12:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:30,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 21:12:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:30,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 21:12:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:30,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:12:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:30,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:12:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:30,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:12:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:30,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-08-22 21:12:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:30,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-08-22 21:12:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:30,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684582181] [2020-08-22 21:12:30,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:30,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 21:12:30,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725013453] [2020-08-22 21:12:30,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 21:12:30,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:30,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 21:12:30,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-08-22 21:12:30,843 INFO L87 Difference]: Start difference. First operand 493 states and 535 transitions. Second operand 11 states. [2020-08-22 21:12:31,959 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:32,193 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:12:32,437 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 21:12:32,675 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:32,936 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:12:33,161 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:34,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:34,436 INFO L93 Difference]: Finished difference Result 1244 states and 1517 transitions. [2020-08-22 21:12:34,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 21:12:34,436 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 194 [2020-08-22 21:12:34,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:34,445 INFO L225 Difference]: With dead ends: 1244 [2020-08-22 21:12:34,445 INFO L226 Difference]: Without dead ends: 861 [2020-08-22 21:12:34,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-08-22 21:12:34,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2020-08-22 21:12:34,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 509. [2020-08-22 21:12:34,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 509 states. [2020-08-22 21:12:34,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 551 transitions. [2020-08-22 21:12:34,751 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 551 transitions. Word has length 194 [2020-08-22 21:12:34,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:34,752 INFO L479 AbstractCegarLoop]: Abstraction has 509 states and 551 transitions. [2020-08-22 21:12:34,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 21:12:34,752 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 551 transitions. [2020-08-22 21:12:34,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-08-22 21:12:34,756 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:34,757 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:34,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 21:12:34,757 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:34,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:34,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1809078841, now seen corresponding path program 1 times [2020-08-22 21:12:34,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:34,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242145319] [2020-08-22 21:12:34,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:35,021 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:35,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:35,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:35,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:35,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:35,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:35,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 21:12:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:35,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 21:12:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:35,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 21:12:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:35,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:12:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:35,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:12:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:35,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:12:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:35,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-08-22 21:12:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:35,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-08-22 21:12:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:35,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:35,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [242145319] [2020-08-22 21:12:35,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:35,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-08-22 21:12:35,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936416925] [2020-08-22 21:12:35,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 21:12:35,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:35,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 21:12:35,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-08-22 21:12:35,211 INFO L87 Difference]: Start difference. First operand 509 states and 551 transitions. Second operand 14 states. [2020-08-22 21:12:35,746 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:35,984 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:12:36,214 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:36,448 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:12:36,687 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:37,492 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:37,725 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:12:37,972 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:38,223 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:12:38,455 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:40,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:40,220 INFO L93 Difference]: Finished difference Result 1282 states and 1578 transitions. [2020-08-22 21:12:40,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-22 21:12:40,221 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 194 [2020-08-22 21:12:40,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:40,227 INFO L225 Difference]: With dead ends: 1282 [2020-08-22 21:12:40,227 INFO L226 Difference]: Without dead ends: 883 [2020-08-22 21:12:40,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-08-22 21:12:40,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2020-08-22 21:12:40,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 521. [2020-08-22 21:12:40,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2020-08-22 21:12:40,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 563 transitions. [2020-08-22 21:12:40,461 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 563 transitions. Word has length 194 [2020-08-22 21:12:40,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:40,462 INFO L479 AbstractCegarLoop]: Abstraction has 521 states and 563 transitions. [2020-08-22 21:12:40,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 21:12:40,462 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 563 transitions. [2020-08-22 21:12:40,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-08-22 21:12:40,466 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:40,466 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:40,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 21:12:40,467 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:40,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:40,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1600730070, now seen corresponding path program 1 times [2020-08-22 21:12:40,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:40,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339303174] [2020-08-22 21:12:40,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:40,833 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:40,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:40,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:40,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:40,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:40,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:40,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 21:12:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:40,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 21:12:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:40,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 21:12:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:12:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:12:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:12:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-08-22 21:12:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-08-22 21:12:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:41,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339303174] [2020-08-22 21:12:41,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:41,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 21:12:41,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579209476] [2020-08-22 21:12:41,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 21:12:41,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:41,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 21:12:41,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 21:12:41,088 INFO L87 Difference]: Start difference. First operand 521 states and 563 transitions. Second operand 8 states. [2020-08-22 21:12:41,533 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:12:42,022 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:12:44,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:44,923 INFO L93 Difference]: Finished difference Result 1931 states and 2435 transitions. [2020-08-22 21:12:44,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-22 21:12:44,923 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 194 [2020-08-22 21:12:44,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:44,933 INFO L225 Difference]: With dead ends: 1931 [2020-08-22 21:12:44,934 INFO L226 Difference]: Without dead ends: 1520 [2020-08-22 21:12:44,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2020-08-22 21:12:44,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2020-08-22 21:12:45,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 943. [2020-08-22 21:12:45,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2020-08-22 21:12:45,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1051 transitions. [2020-08-22 21:12:45,278 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1051 transitions. Word has length 194 [2020-08-22 21:12:45,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:45,279 INFO L479 AbstractCegarLoop]: Abstraction has 943 states and 1051 transitions. [2020-08-22 21:12:45,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 21:12:45,279 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1051 transitions. [2020-08-22 21:12:45,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-08-22 21:12:45,281 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:45,281 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:45,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 21:12:45,282 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:45,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:45,282 INFO L82 PathProgramCache]: Analyzing trace with hash -187161483, now seen corresponding path program 1 times [2020-08-22 21:12:45,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:45,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484080540] [2020-08-22 21:12:45,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:12:45,352 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:12:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:12:45,431 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:12:45,754 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:12:45,755 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:12:45,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 21:12:45,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:12:45 BoogieIcfgContainer [2020-08-22 21:12:45,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:12:45,997 INFO L168 Benchmark]: Toolchain (without parser) took 40441.48 ms. Allocated memory was 145.8 MB in the beginning and 768.1 MB in the end (delta: 622.3 MB). Free memory was 100.9 MB in the beginning and 312.3 MB in the end (delta: -211.3 MB). Peak memory consumption was 411.0 MB. Max. memory is 7.1 GB. [2020-08-22 21:12:45,998 INFO L168 Benchmark]: CDTParser took 1.97 ms. Allocated memory is still 145.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 21:12:45,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.19 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 100.7 MB in the beginning and 169.9 MB in the end (delta: -69.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-08-22 21:12:45,999 INFO L168 Benchmark]: Boogie Preprocessor took 88.60 ms. Allocated memory is still 202.9 MB. Free memory was 169.9 MB in the beginning and 165.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-08-22 21:12:46,000 INFO L168 Benchmark]: RCFGBuilder took 1144.15 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 165.2 MB in the beginning and 176.3 MB in the end (delta: -11.1 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. [2020-08-22 21:12:46,001 INFO L168 Benchmark]: TraceAbstraction took 38596.93 ms. Allocated memory was 235.9 MB in the beginning and 768.1 MB in the end (delta: 532.2 MB). Free memory was 176.3 MB in the beginning and 312.3 MB in the end (delta: -135.9 MB). Peak memory consumption was 396.2 MB. Max. memory is 7.1 GB. [2020-08-22 21:12:46,004 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.97 ms. Allocated memory is still 145.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 605.19 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 100.7 MB in the beginning and 169.9 MB in the end (delta: -69.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.60 ms. Allocated memory is still 202.9 MB. Free memory was 169.9 MB in the beginning and 165.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1144.15 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 165.2 MB in the beginning and 176.3 MB in the end (delta: -11.1 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 38596.93 ms. Allocated memory was 235.9 MB in the beginning and 768.1 MB in the end (delta: 532.2 MB). Free memory was 176.3 MB in the beginning and 312.3 MB in the end (delta: -135.9 MB). Peak memory consumption was 396.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 514]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=170, \old(head)=158, \old(head)=176, \old(methaneLevelCritical)=143, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=4, head={176:158}, methaneLevelCritical=143, pumpRunning=135, systemActive=134, waterLevel=137] [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=158, \old(methaneLevelCritical)=143, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=143, pumpRunning=135, systemActive=134, waterLevel=137] [L524] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=170, \old(head)=158, \old(head)=176, \old(methaneLevelCritical)=143, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=143, pumpRunning=135, systemActive=134, waterLevel=1] [L525] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=170, \old(head)=158, \old(head)=176, \old(methaneLevelCritical)=143, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=135, systemActive=134, waterLevel=1] [L689] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=158, \old(methaneLevelCritical)=143, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=134, waterLevel=1] [L690] int systemActive = 1; VAL [\old(cleanupTimeShifts)=170, \old(head)=158, \old(head)=176, \old(methaneLevelCritical)=143, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; 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] [L122] 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] [L126] 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] [L127] 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] [L128] 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] [L902] int retValue_acc ; 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] [L905] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L906] 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] [L128] 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] [L128] tmp = 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, tmp=1, valid_product()=1, waterLevel=1] [L130] 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] [L132] 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] [L133] 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] [L112] 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] [L620] int splverifierCounter ; 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] [L621] 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] [L622] int tmp___0 ; 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] [L623] int tmp___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=1] [L624] int tmp___2 ; 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] [L627] 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] [L629] 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] [L631] 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] [L637] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L639] 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] [L641] 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] [L542] COND TRUE waterLevel < 2 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] [L543] 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] [L641] 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] [L647] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L649] 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=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L651] CALL changeMethaneLevel() 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] [L554] COND FALSE !(\read(methaneLevelCritical)) 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] [L557] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L651] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L657] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L659] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L661] CALL startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L845] systemActive = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L661] RET startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L674] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L697] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L704] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L706] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L726] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L729] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L731] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L823] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L824] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L825] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L829] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L604] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L607] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L611] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L612] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L829] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L829] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L831] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L834] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L836] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L837] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L731] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L731] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L733] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L735] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L754] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L735] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L706] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L712] 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=1, pumpRunning=1, systemActive=1, waterLevel=2] [L851] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L852] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L856] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L563] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L566] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L567] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L856] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L856] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L858] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L860] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L778] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L781] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L782] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L860] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L860] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L862] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L864] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L514] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 610 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 38.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 31.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1991 SDtfs, 4922 SDslu, 4221 SDs, 0 SdLazy, 7900 SolverSat, 1404 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 391 GetRequests, 239 SyntacticMatches, 2 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 13.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=943occurred 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: 1.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 2130 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1767 NumberOfCodeBlocks, 1767 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1559 ConstructedInterpolants, 0 QuantifiedInterpolants, 672548 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...