java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:34:04,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:34:04,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:34:04,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:34:04,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:34:04,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:34:04,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:34:04,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:34:04,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:34:04,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:34:04,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:34:04,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:34:04,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:34:04,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:34:04,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:34:04,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:34:04,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:34:04,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:34:04,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:34:04,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:34:04,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:34:04,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:34:04,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:34:04,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:34:04,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:34:04,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:34:04,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:34:04,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:34:04,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:34:04,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:34:04,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:34:04,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:34:04,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:34:04,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:34:04,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:34:04,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:34:04,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:34:04,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:34:04,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:34:04,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:34:04,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:34:04,369 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:34:04,383 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:34:04,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:34:04,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:34:04,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:34:04,385 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:34:04,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:34:04,386 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:34:04,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:34:04,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:34:04,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:34:04,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:34:04,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:34:04,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:34:04,387 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:34:04,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:34:04,387 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:34:04,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:34:04,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:34:04,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:34:04,388 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:34:04,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:34:04,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:34:04,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:34:04,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:34:04,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:34:04,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:34:04,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:34:04,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:34:04,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:34:04,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:34:04,668 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:34:04,672 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:34:04,673 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:34:04,674 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:34:04,675 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product64.cil.c [2019-10-14 23:34:04,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62150b6dd/4da33cebf03843158327f28c9972a7ff/FLAG031b0547a [2019-10-14 23:34:05,265 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:34:05,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product64.cil.c [2019-10-14 23:34:05,280 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62150b6dd/4da33cebf03843158327f28c9972a7ff/FLAG031b0547a [2019-10-14 23:34:05,563 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62150b6dd/4da33cebf03843158327f28c9972a7ff [2019-10-14 23:34:05,574 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:34:05,576 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:34:05,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:34:05,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:34:05,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:34:05,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:34:05" (1/1) ... [2019-10-14 23:34:05,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62a266f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:34:05, skipping insertion in model container [2019-10-14 23:34:05,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:34:05" (1/1) ... [2019-10-14 23:34:05,593 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:34:05,671 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:34:06,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:34:06,161 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:34:06,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:34:06,305 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:34:06,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:34:06 WrapperNode [2019-10-14 23:34:06,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:34:06,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:34:06,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:34:06,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:34:06,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:34:06" (1/1) ... [2019-10-14 23:34:06,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:34:06" (1/1) ... [2019-10-14 23:34:06,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:34:06" (1/1) ... [2019-10-14 23:34:06,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:34:06" (1/1) ... [2019-10-14 23:34:06,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:34:06" (1/1) ... [2019-10-14 23:34:06,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:34:06" (1/1) ... [2019-10-14 23:34:06,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:34:06" (1/1) ... [2019-10-14 23:34:06,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:34:06,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:34:06,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:34:06,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:34:06,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:34:06" (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 [2019-10-14 23:34:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:34:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:34:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:34:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:34:06,450 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:34:06,451 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:34:06,451 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:34:06,451 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:34:06,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-14 23:34:06,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:34:06,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:34:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:34:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:34:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:34:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:34:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:34:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:34:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:34:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:34:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:34:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:34:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-14 23:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-14 23:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-14 23:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-14 23:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-14 23:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:34:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-14 23:34:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:34:06,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:34:06,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:34:06,460 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:34:06,460 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:34:06,460 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:34:06,460 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:34:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:34:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:34:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:34:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:34:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-14 23:34:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:34:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:34:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:34:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:34:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:34:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:34:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:34:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:34:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:34:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:34:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:34:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:34:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:34:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:34:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:34:06,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:34:06,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:34:06,464 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:34:06,464 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:34:06,464 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:34:06,464 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:34:06,465 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:34:06,465 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:34:06,465 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:34:06,465 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:34:06,465 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:34:06,465 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:34:06,465 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:34:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:34:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:34:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-14 23:34:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:34:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:34:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-14 23:34:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-14 23:34:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:34:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:34:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:34:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:34:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-14 23:34:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-14 23:34:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:34:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-14 23:34:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:34:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:34:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:34:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:34:07,610 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:34:07,611 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:34:07,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:34:07 BoogieIcfgContainer [2019-10-14 23:34:07,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:34:07,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:34:07,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:34:07,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:34:07,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:34:05" (1/3) ... [2019-10-14 23:34:07,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc33859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:34:07, skipping insertion in model container [2019-10-14 23:34:07,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:34:06" (2/3) ... [2019-10-14 23:34:07,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc33859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:34:07, skipping insertion in model container [2019-10-14 23:34:07,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:34:07" (3/3) ... [2019-10-14 23:34:07,624 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product64.cil.c [2019-10-14 23:34:07,634 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:34:07,645 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:34:07,656 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:34:07,693 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:34:07,693 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:34:07,694 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:34:07,694 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:34:07,696 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:34:07,696 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:34:07,697 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:34:07,697 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:34:07,719 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states. [2019-10-14 23:34:07,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-14 23:34:07,730 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:07,731 INFO L380 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] [2019-10-14 23:34:07,733 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:07,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:07,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1495966497, now seen corresponding path program 1 times [2019-10-14 23:34:07,748 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:07,748 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741332187] [2019-10-14 23:34:07,749 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:07,749 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:07,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,394 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:08,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:34:08,526 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741332187] [2019-10-14 23:34:08,526 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:08,527 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:34:08,527 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448012244] [2019-10-14 23:34:08,532 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:34:08,533 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:08,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:34:08,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:34:08,552 INFO L87 Difference]: Start difference. First operand 203 states. Second operand 3 states. [2019-10-14 23:34:09,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:09,917 INFO L93 Difference]: Finished difference Result 368 states and 480 transitions. [2019-10-14 23:34:09,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:34:09,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-10-14 23:34:09,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:09,934 INFO L225 Difference]: With dead ends: 368 [2019-10-14 23:34:09,934 INFO L226 Difference]: Without dead ends: 199 [2019-10-14 23:34:09,939 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:34:09,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2019-10-14 23:34:10,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 160. [2019-10-14 23:34:10,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-10-14 23:34:10,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 191 transitions. [2019-10-14 23:34:10,072 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 191 transitions. Word has length 46 [2019-10-14 23:34:10,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:10,073 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 191 transitions. [2019-10-14 23:34:10,074 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:34:10,074 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 191 transitions. [2019-10-14 23:34:10,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-14 23:34:10,084 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:10,084 INFO L380 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] [2019-10-14 23:34:10,084 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:10,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:10,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1681348133, now seen corresponding path program 1 times [2019-10-14 23:34:10,086 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:10,086 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438437725] [2019-10-14 23:34:10,086 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:10,086 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:10,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,471 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:34:10,505 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438437725] [2019-10-14 23:34:10,505 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:10,506 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:34:10,506 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121542917] [2019-10-14 23:34:10,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:34:10,508 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:10,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:34:10,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:34:10,509 INFO L87 Difference]: Start difference. First operand 160 states and 191 transitions. Second operand 4 states. [2019-10-14 23:34:10,974 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:12,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:12,088 INFO L93 Difference]: Finished difference Result 291 states and 359 transitions. [2019-10-14 23:34:12,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:34:12,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2019-10-14 23:34:12,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:12,093 INFO L225 Difference]: With dead ends: 291 [2019-10-14 23:34:12,094 INFO L226 Difference]: Without dead ends: 183 [2019-10-14 23:34:12,095 INFO L600 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 [2019-10-14 23:34:12,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2019-10-14 23:34:12,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 151. [2019-10-14 23:34:12,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-10-14 23:34:12,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 179 transitions. [2019-10-14 23:34:12,139 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 179 transitions. Word has length 47 [2019-10-14 23:34:12,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:12,140 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 179 transitions. [2019-10-14 23:34:12,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:34:12,140 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 179 transitions. [2019-10-14 23:34:12,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-14 23:34:12,142 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:12,142 INFO L380 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] [2019-10-14 23:34:12,142 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:12,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:12,143 INFO L82 PathProgramCache]: Analyzing trace with hash 833077427, now seen corresponding path program 1 times [2019-10-14 23:34:12,143 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:12,143 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168633930] [2019-10-14 23:34:12,144 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:12,144 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:12,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:12,469 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:12,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:34:12,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168633930] [2019-10-14 23:34:12,562 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:12,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:34:12,562 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408708608] [2019-10-14 23:34:12,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:34:12,563 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:12,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:34:12,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:34:12,563 INFO L87 Difference]: Start difference. First operand 151 states and 179 transitions. Second operand 8 states. [2019-10-14 23:34:13,061 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:13,399 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:34:13,662 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:13,908 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:14,730 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:17,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:17,313 INFO L93 Difference]: Finished difference Result 516 states and 644 transitions. [2019-10-14 23:34:17,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:34:17,314 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2019-10-14 23:34:17,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:17,318 INFO L225 Difference]: With dead ends: 516 [2019-10-14 23:34:17,319 INFO L226 Difference]: Without dead ends: 389 [2019-10-14 23:34:17,320 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:34:17,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-10-14 23:34:17,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 316. [2019-10-14 23:34:17,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2019-10-14 23:34:17,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 386 transitions. [2019-10-14 23:34:17,422 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 386 transitions. Word has length 52 [2019-10-14 23:34:17,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:17,423 INFO L462 AbstractCegarLoop]: Abstraction has 316 states and 386 transitions. [2019-10-14 23:34:17,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:34:17,423 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 386 transitions. [2019-10-14 23:34:17,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-14 23:34:17,425 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:17,425 INFO L380 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] [2019-10-14 23:34:17,425 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:17,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:17,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1106348516, now seen corresponding path program 1 times [2019-10-14 23:34:17,426 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:17,426 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543957789] [2019-10-14 23:34:17,427 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:17,427 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:17,427 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:17,741 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:17,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:17,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:34:17,827 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543957789] [2019-10-14 23:34:17,827 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:17,827 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:34:17,828 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773427906] [2019-10-14 23:34:17,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:34:17,828 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:17,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:34:17,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:34:17,829 INFO L87 Difference]: Start difference. First operand 316 states and 386 transitions. Second operand 8 states. [2019-10-14 23:34:18,325 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:19,320 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:19,785 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:20,082 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:20,356 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:21,083 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:22,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:22,511 INFO L93 Difference]: Finished difference Result 1025 states and 1329 transitions. [2019-10-14 23:34:22,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:34:22,511 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2019-10-14 23:34:22,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:22,517 INFO L225 Difference]: With dead ends: 1025 [2019-10-14 23:34:22,518 INFO L226 Difference]: Without dead ends: 733 [2019-10-14 23:34:22,519 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:34:22,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2019-10-14 23:34:22,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 587. [2019-10-14 23:34:22,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2019-10-14 23:34:22,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 722 transitions. [2019-10-14 23:34:22,639 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 722 transitions. Word has length 57 [2019-10-14 23:34:22,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:22,640 INFO L462 AbstractCegarLoop]: Abstraction has 587 states and 722 transitions. [2019-10-14 23:34:22,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:34:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 722 transitions. [2019-10-14 23:34:22,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-14 23:34:22,643 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:22,643 INFO L380 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] [2019-10-14 23:34:22,643 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:22,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:22,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1073775336, now seen corresponding path program 1 times [2019-10-14 23:34:22,644 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:22,644 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881346722] [2019-10-14 23:34:22,644 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:22,644 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:22,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:22,986 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:34:23,070 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881346722] [2019-10-14 23:34:23,070 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:23,070 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:34:23,070 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256112769] [2019-10-14 23:34:23,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:34:23,071 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:23,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:34:23,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:34:23,072 INFO L87 Difference]: Start difference. First operand 587 states and 722 transitions. Second operand 9 states. [2019-10-14 23:34:23,524 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:24,579 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:24,878 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:25,186 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:26,051 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:26,389 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:27,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:27,682 INFO L93 Difference]: Finished difference Result 1637 states and 2184 transitions. [2019-10-14 23:34:27,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:34:27,685 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2019-10-14 23:34:27,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:27,692 INFO L225 Difference]: With dead ends: 1637 [2019-10-14 23:34:27,692 INFO L226 Difference]: Without dead ends: 1074 [2019-10-14 23:34:27,695 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:34:27,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2019-10-14 23:34:27,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 887. [2019-10-14 23:34:27,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 887 states. [2019-10-14 23:34:27,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1087 transitions. [2019-10-14 23:34:27,873 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1087 transitions. Word has length 61 [2019-10-14 23:34:27,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:27,873 INFO L462 AbstractCegarLoop]: Abstraction has 887 states and 1087 transitions. [2019-10-14 23:34:27,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:34:27,874 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1087 transitions. [2019-10-14 23:34:27,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-14 23:34:27,876 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:27,877 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:34:27,877 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:27,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:27,878 INFO L82 PathProgramCache]: Analyzing trace with hash 2112269386, now seen corresponding path program 1 times [2019-10-14 23:34:27,878 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:27,878 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650736122] [2019-10-14 23:34:27,878 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:27,878 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:27,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,183 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:34:28,397 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650736122] [2019-10-14 23:34:28,398 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:28,398 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:34:28,398 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773636819] [2019-10-14 23:34:28,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:34:28,399 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:28,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:34:28,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:34:28,400 INFO L87 Difference]: Start difference. First operand 887 states and 1087 transitions. Second operand 9 states. [2019-10-14 23:34:29,769 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:30,053 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:34:30,345 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:30,648 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:32,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:32,271 INFO L93 Difference]: Finished difference Result 2021 states and 2716 transitions. [2019-10-14 23:34:32,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:34:32,272 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 104 [2019-10-14 23:34:32,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:32,281 INFO L225 Difference]: With dead ends: 2021 [2019-10-14 23:34:32,281 INFO L226 Difference]: Without dead ends: 1158 [2019-10-14 23:34:32,284 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:34:32,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2019-10-14 23:34:32,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 913. [2019-10-14 23:34:32,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2019-10-14 23:34:32,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1115 transitions. [2019-10-14 23:34:32,485 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1115 transitions. Word has length 104 [2019-10-14 23:34:32,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:32,485 INFO L462 AbstractCegarLoop]: Abstraction has 913 states and 1115 transitions. [2019-10-14 23:34:32,485 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:34:32,486 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1115 transitions. [2019-10-14 23:34:32,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-14 23:34:32,490 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:32,490 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:34:32,491 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:32,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:32,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1759181004, now seen corresponding path program 1 times [2019-10-14 23:34:32,492 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:32,492 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010950734] [2019-10-14 23:34:32,492 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:32,492 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:32,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:32,978 WARN L191 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:33,169 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:34:33,170 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010950734] [2019-10-14 23:34:33,170 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:33,170 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:34:33,171 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554839505] [2019-10-14 23:34:33,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:34:33,172 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:33,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:34:33,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:34:33,173 INFO L87 Difference]: Start difference. First operand 913 states and 1115 transitions. Second operand 11 states. [2019-10-14 23:34:33,952 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:34,241 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:34,507 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:35,452 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:35,780 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:36,073 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:37,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:37,819 INFO L93 Difference]: Finished difference Result 2067 states and 2764 transitions. [2019-10-14 23:34:37,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:34:37,821 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 104 [2019-10-14 23:34:37,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:37,831 INFO L225 Difference]: With dead ends: 2067 [2019-10-14 23:34:37,831 INFO L226 Difference]: Without dead ends: 1178 [2019-10-14 23:34:37,836 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:34:37,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2019-10-14 23:34:38,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 929. [2019-10-14 23:34:38,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2019-10-14 23:34:38,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1131 transitions. [2019-10-14 23:34:38,037 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1131 transitions. Word has length 104 [2019-10-14 23:34:38,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:38,038 INFO L462 AbstractCegarLoop]: Abstraction has 929 states and 1131 transitions. [2019-10-14 23:34:38,038 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:34:38,038 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1131 transitions. [2019-10-14 23:34:38,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-14 23:34:38,041 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:38,041 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:34:38,042 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:38,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:38,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1402595699, now seen corresponding path program 1 times [2019-10-14 23:34:38,047 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:38,047 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031658034] [2019-10-14 23:34:38,048 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:38,048 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:38,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,336 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:38,502 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:34:38,502 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031658034] [2019-10-14 23:34:38,502 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:38,503 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:34:38,503 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879344314] [2019-10-14 23:34:38,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:34:38,503 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:38,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:34:38,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:34:38,504 INFO L87 Difference]: Start difference. First operand 929 states and 1131 transitions. Second operand 7 states. [2019-10-14 23:34:39,032 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:39,569 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:42,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:42,573 INFO L93 Difference]: Finished difference Result 3035 states and 4089 transitions. [2019-10-14 23:34:42,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:34:42,573 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2019-10-14 23:34:42,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:42,587 INFO L225 Difference]: With dead ends: 3035 [2019-10-14 23:34:42,587 INFO L226 Difference]: Without dead ends: 2130 [2019-10-14 23:34:42,592 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:34:42,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states.