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_spec3_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:36:28,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:36:28,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:36:28,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:36:28,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:36:28,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:36:28,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:36:28,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:36:28,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:36:28,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:36:28,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:36:28,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:36:28,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:36:28,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:36:28,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:36:28,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:36:28,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:36:28,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:36:28,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:36:28,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:36:28,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:36:28,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:36:28,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:36:28,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:36:28,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:36:28,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:36:28,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:36:28,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:36:28,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:36:28,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:36:28,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:36:28,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:36:28,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:36:28,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:36:28,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:36:28,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:36:28,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:36:28,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:36:28,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:36:28,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:36:28,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:36:28,538 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 23:36:28,562 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:36:28,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:36:28,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:36:28,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:36:28,565 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:36:28,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:36:28,565 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:36:28,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:36:28,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:36:28,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:36:28,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:36:28,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:36:28,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:36:28,566 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:36:28,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:36:28,567 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:36:28,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:36:28,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:36:28,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:36:28,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:36:28,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:36:28,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:36:28,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:36:28,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:36:28,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:36:28,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:36:28,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:36:28,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:36:28,569 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:36:28,831 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:36:28,843 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:36:28,847 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:36:28,848 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:36:28,849 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:36:28,849 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2019-10-14 23:36:28,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a42d2645/e62c07e93b9947fb91f5633674a0bbb6/FLAG708b126fa [2019-10-14 23:36:29,425 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:36:29,429 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2019-10-14 23:36:29,450 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a42d2645/e62c07e93b9947fb91f5633674a0bbb6/FLAG708b126fa [2019-10-14 23:36:29,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a42d2645/e62c07e93b9947fb91f5633674a0bbb6 [2019-10-14 23:36:29,793 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:36:29,794 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:36:29,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:36:29,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:36:29,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:36:29,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:36:29" (1/1) ... [2019-10-14 23:36:29,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de94fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:29, skipping insertion in model container [2019-10-14 23:36:29,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:36:29" (1/1) ... [2019-10-14 23:36:29,811 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:36:29,879 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:36:30,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:36:30,345 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:36:30,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:36:30,472 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:36:30,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:30 WrapperNode [2019-10-14 23:36:30,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:36:30,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:36:30,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:36:30,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:36:30,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:30" (1/1) ... [2019-10-14 23:36:30,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:30" (1/1) ... [2019-10-14 23:36:30,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:30" (1/1) ... [2019-10-14 23:36:30,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:30" (1/1) ... [2019-10-14 23:36:30,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:30" (1/1) ... [2019-10-14 23:36:30,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:30" (1/1) ... [2019-10-14 23:36:30,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:30" (1/1) ... [2019-10-14 23:36:30,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:36:30,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:36:30,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:36:30,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:36:30,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:30" (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 23:36:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:36:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:36:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:36:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:36:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:36:30,630 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:36:30,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:36:30,630 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:36:30,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:36:30,630 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:36:30,631 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:36:30,631 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:36:30,631 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:36:30,631 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:36:30,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:36:30,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:36:30,632 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:36:30,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:36:30,632 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-14 23:36:30,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:36:30,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:36:30,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:36:30,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:36:30,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:36:30,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:36:30,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-14 23:36:30,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:36:30,634 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:36:30,634 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:36:30,634 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:36:30,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:36:30,634 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:36:30,634 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:36:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:36:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:36:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:36:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:36:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:36:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:36:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:36:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:36:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:36:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:36:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-14 23:36:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:36:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:36:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:36:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:36:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:36:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:36:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:36:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:36:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:36:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:36:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:36:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:36:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:36:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:36:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:36:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:36:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:36:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:36:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-14 23:36:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:36:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:36:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:36:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:36:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:36:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:36:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:36:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:36:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:36:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:36:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:36:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:36:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:36:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:36:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:36:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:36:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:36:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:36:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:36:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:36:30,643 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:36:30,643 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:36:30,643 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:36:30,643 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:36:30,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:36:30,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:36:30,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:36:31,695 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:36:31,695 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:36:31,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:36:31 BoogieIcfgContainer [2019-10-14 23:36:31,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:36:31,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:36:31,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:36:31,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:36:31,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:36:29" (1/3) ... [2019-10-14 23:36:31,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17936bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:36:31, skipping insertion in model container [2019-10-14 23:36:31,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:30" (2/3) ... [2019-10-14 23:36:31,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17936bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:36:31, skipping insertion in model container [2019-10-14 23:36:31,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:36:31" (3/3) ... [2019-10-14 23:36:31,705 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product34.cil.c [2019-10-14 23:36:31,715 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:36:31,724 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:36:31,735 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:36:31,762 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:36:31,762 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:36:31,763 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:36:31,763 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:36:31,763 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:36:31,763 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:36:31,763 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:36:31,764 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:36:31,786 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2019-10-14 23:36:31,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-14 23:36:31,796 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:31,797 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 23:36:31,799 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:31,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:31,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1636335383, now seen corresponding path program 1 times [2019-10-14 23:36:31,814 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:31,814 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910631347] [2019-10-14 23:36:31,815 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:31,815 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:31,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,502 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,622 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 23:36:32,623 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910631347] [2019-10-14 23:36:32,624 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:32,625 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:36:32,628 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106368547] [2019-10-14 23:36:32,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:36:32,636 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:32,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:36:32,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:36:32,664 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 3 states. [2019-10-14 23:36:33,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:33,674 INFO L93 Difference]: Finished difference Result 270 states and 355 transitions. [2019-10-14 23:36:33,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:36:33,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-14 23:36:33,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:33,690 INFO L225 Difference]: With dead ends: 270 [2019-10-14 23:36:33,691 INFO L226 Difference]: Without dead ends: 146 [2019-10-14 23:36:33,695 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:36:33,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-10-14 23:36:33,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 115. [2019-10-14 23:36:33,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-10-14 23:36:33,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 134 transitions. [2019-10-14 23:36:33,791 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 134 transitions. Word has length 52 [2019-10-14 23:36:33,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:33,791 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 134 transitions. [2019-10-14 23:36:33,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:36:33,792 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 134 transitions. [2019-10-14 23:36:33,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-14 23:36:33,795 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:33,795 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] [2019-10-14 23:36:33,796 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:33,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:33,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1439054439, now seen corresponding path program 1 times [2019-10-14 23:36:33,797 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:33,797 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836752371] [2019-10-14 23:36:33,797 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:33,797 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:33,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,146 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,183 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 23:36:34,183 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836752371] [2019-10-14 23:36:34,184 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:34,184 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:36:34,184 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796586795] [2019-10-14 23:36:34,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:36:34,186 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:34,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:36:34,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:36:34,187 INFO L87 Difference]: Start difference. First operand 115 states and 134 transitions. Second operand 4 states. [2019-10-14 23:36:34,630 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:35,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:35,295 INFO L93 Difference]: Finished difference Result 199 states and 242 transitions. [2019-10-14 23:36:35,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:36:35,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2019-10-14 23:36:35,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:35,298 INFO L225 Difference]: With dead ends: 199 [2019-10-14 23:36:35,298 INFO L226 Difference]: Without dead ends: 130 [2019-10-14 23:36:35,300 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:36:35,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-10-14 23:36:35,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 106. [2019-10-14 23:36:35,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-14 23:36:35,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2019-10-14 23:36:35,331 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 53 [2019-10-14 23:36:35,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:35,331 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2019-10-14 23:36:35,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:36:35,331 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2019-10-14 23:36:35,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-14 23:36:35,333 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:35,334 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] [2019-10-14 23:36:35,334 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:35,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:35,334 INFO L82 PathProgramCache]: Analyzing trace with hash -580669987, now seen corresponding path program 1 times [2019-10-14 23:36:35,335 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:35,335 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228753946] [2019-10-14 23:36:35,335 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:35,335 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:35,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:35,670 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:35,830 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 23:36:35,831 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228753946] [2019-10-14 23:36:35,831 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:35,831 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:36:35,832 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270890809] [2019-10-14 23:36:35,832 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:36:35,832 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:35,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:36:35,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:36:35,833 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand 8 states. [2019-10-14 23:36:36,252 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:36:36,607 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:36,894 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:37,128 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:38,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:38,198 INFO L93 Difference]: Finished difference Result 212 states and 260 transitions. [2019-10-14 23:36:38,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:36:38,199 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2019-10-14 23:36:38,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:38,203 INFO L225 Difference]: With dead ends: 212 [2019-10-14 23:36:38,203 INFO L226 Difference]: Without dead ends: 130 [2019-10-14 23:36:38,204 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:36:38,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-10-14 23:36:38,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 106. [2019-10-14 23:36:38,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-14 23:36:38,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 121 transitions. [2019-10-14 23:36:38,233 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 121 transitions. Word has length 58 [2019-10-14 23:36:38,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:38,233 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 121 transitions. [2019-10-14 23:36:38,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:36:38,233 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 121 transitions. [2019-10-14 23:36:38,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-14 23:36:38,235 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:38,235 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, 1, 1, 1, 1, 1] [2019-10-14 23:36:38,235 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:38,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:38,236 INFO L82 PathProgramCache]: Analyzing trace with hash 2122897594, now seen corresponding path program 1 times [2019-10-14 23:36:38,236 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:38,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427782593] [2019-10-14 23:36:38,236 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:38,237 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:38,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,520 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,603 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 23:36:38,604 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427782593] [2019-10-14 23:36:38,604 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:38,604 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:36:38,604 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239294906] [2019-10-14 23:36:38,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:36:38,605 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:38,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:36:38,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:36:38,606 INFO L87 Difference]: Start difference. First operand 106 states and 121 transitions. Second operand 6 states. [2019-10-14 23:36:38,963 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:36:40,324 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:40,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:40,859 INFO L93 Difference]: Finished difference Result 312 states and 384 transitions. [2019-10-14 23:36:40,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:36:40,860 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2019-10-14 23:36:40,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:40,863 INFO L225 Difference]: With dead ends: 312 [2019-10-14 23:36:40,864 INFO L226 Difference]: Without dead ends: 230 [2019-10-14 23:36:40,865 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:36:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2019-10-14 23:36:40,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 187. [2019-10-14 23:36:40,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-10-14 23:36:40,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 214 transitions. [2019-10-14 23:36:40,908 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 214 transitions. Word has length 66 [2019-10-14 23:36:40,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:40,909 INFO L462 AbstractCegarLoop]: Abstraction has 187 states and 214 transitions. [2019-10-14 23:36:40,909 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:36:40,909 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 214 transitions. [2019-10-14 23:36:40,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-14 23:36:40,911 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:40,911 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:36:40,911 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:40,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:40,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1628331355, now seen corresponding path program 1 times [2019-10-14 23:36:40,912 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:40,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532944095] [2019-10-14 23:36:40,912 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:40,912 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:40,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:41,210 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:41,332 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 23:36:41,332 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532944095] [2019-10-14 23:36:41,332 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:41,333 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:36:41,333 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654122347] [2019-10-14 23:36:41,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:36:41,334 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:41,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:36:41,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:36:41,335 INFO L87 Difference]: Start difference. First operand 187 states and 214 transitions. Second operand 8 states. [2019-10-14 23:36:41,811 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:36:43,099 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:43,406 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:43,680 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:43,947 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:36:44,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:44,633 INFO L93 Difference]: Finished difference Result 513 states and 644 transitions. [2019-10-14 23:36:44,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:36:44,634 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2019-10-14 23:36:44,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:44,637 INFO L225 Difference]: With dead ends: 513 [2019-10-14 23:36:44,638 INFO L226 Difference]: Without dead ends: 350 [2019-10-14 23:36:44,639 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:36:44,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-10-14 23:36:44,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 307. [2019-10-14 23:36:44,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2019-10-14 23:36:44,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 357 transitions. [2019-10-14 23:36:44,709 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 357 transitions. Word has length 80 [2019-10-14 23:36:44,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:44,709 INFO L462 AbstractCegarLoop]: Abstraction has 307 states and 357 transitions. [2019-10-14 23:36:44,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:36:44,710 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 357 transitions. [2019-10-14 23:36:44,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-14 23:36:44,712 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:44,712 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, 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 23:36:44,712 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:44,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:44,713 INFO L82 PathProgramCache]: Analyzing trace with hash 452882261, now seen corresponding path program 1 times [2019-10-14 23:36:44,713 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:44,713 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301408272] [2019-10-14 23:36:44,713 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:44,714 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:44,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:45,041 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:45,149 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 23:36:45,150 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301408272] [2019-10-14 23:36:45,150 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:45,150 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:36:45,150 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239901352] [2019-10-14 23:36:45,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:36:45,151 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:45,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:36:45,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:36:45,152 INFO L87 Difference]: Start difference. First operand 307 states and 357 transitions. Second operand 10 states. [2019-10-14 23:36:45,652 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:36:47,069 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:47,404 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:47,694 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:47,974 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:36:48,355 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:49,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:49,326 INFO L93 Difference]: Finished difference Result 687 states and 870 transitions. [2019-10-14 23:36:49,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:36:49,327 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2019-10-14 23:36:49,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:49,332 INFO L225 Difference]: With dead ends: 687 [2019-10-14 23:36:49,333 INFO L226 Difference]: Without dead ends: 513 [2019-10-14 23:36:49,334 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:36:49,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2019-10-14 23:36:49,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 441. [2019-10-14 23:36:49,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2019-10-14 23:36:49,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 520 transitions. [2019-10-14 23:36:49,436 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 520 transitions. Word has length 84 [2019-10-14 23:36:49,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:49,437 INFO L462 AbstractCegarLoop]: Abstraction has 441 states and 520 transitions. [2019-10-14 23:36:49,437 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:36:49,437 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 520 transitions. [2019-10-14 23:36:49,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-14 23:36:49,439 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:49,439 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, 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 23:36:49,440 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:49,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:49,440 INFO L82 PathProgramCache]: Analyzing trace with hash 782648022, now seen corresponding path program 1 times [2019-10-14 23:36:49,440 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:49,441 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122147689] [2019-10-14 23:36:49,441 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:49,441 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:49,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:49,699 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:49,812 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 23:36:49,812 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122147689] [2019-10-14 23:36:49,812 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:49,812 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:36:49,813 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505254350] [2019-10-14 23:36:49,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:36:49,813 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:49,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:36:49,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:36:49,814 INFO L87 Difference]: Start difference. First operand 441 states and 520 transitions. Second operand 8 states. [2019-10-14 23:36:50,847 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:51,099 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:51,380 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:52,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:52,278 INFO L93 Difference]: Finished difference Result 813 states and 1003 transitions. [2019-10-14 23:36:52,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:36:52,280 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2019-10-14 23:36:52,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:52,284 INFO L225 Difference]: With dead ends: 813 [2019-10-14 23:36:52,284 INFO L226 Difference]: Without dead ends: 501 [2019-10-14 23:36:52,286 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:36:52,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-10-14 23:36:52,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 441. [2019-10-14 23:36:52,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2019-10-14 23:36:52,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 519 transitions. [2019-10-14 23:36:52,364 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 519 transitions. Word has length 84 [2019-10-14 23:36:52,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:52,364 INFO L462 AbstractCegarLoop]: Abstraction has 441 states and 519 transitions. [2019-10-14 23:36:52,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:36:52,365 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 519 transitions. [2019-10-14 23:36:52,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-14 23:36:52,367 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:52,367 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, 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 23:36:52,367 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:52,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:52,367 INFO L82 PathProgramCache]: Analyzing trace with hash 710261464, now seen corresponding path program 1 times [2019-10-14 23:36:52,368 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:52,368 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95789572] [2019-10-14 23:36:52,368 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:52,368 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:52,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,661 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:52,795 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 23:36:52,795 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95789572] [2019-10-14 23:36:52,795 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:52,796 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:36:52,796 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427448194] [2019-10-14 23:36:52,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:36:52,797 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:52,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:36:52,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:36:52,797 INFO L87 Difference]: Start difference. First operand 441 states and 519 transitions. Second operand 12 states. [2019-10-14 23:36:53,446 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:53,727 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:53,989 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:54,830 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:55,105 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:55,430 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:55,701 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:56,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:56,779 INFO L93 Difference]: Finished difference Result 880 states and 1086 transitions. [2019-10-14 23:36:56,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-14 23:36:56,780 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 84 [2019-10-14 23:36:56,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:56,785 INFO L225 Difference]: With dead ends: 880 [2019-10-14 23:36:56,785 INFO L226 Difference]: Without dead ends: 463 [2019-10-14 23:36:56,788 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2019-10-14 23:36:56,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2019-10-14 23:36:56,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 414. [2019-10-14 23:36:56,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2019-10-14 23:36:56,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 485 transitions. [2019-10-14 23:36:56,885 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 485 transitions. Word has length 84 [2019-10-14 23:36:56,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:56,885 INFO L462 AbstractCegarLoop]: Abstraction has 414 states and 485 transitions. [2019-10-14 23:36:56,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:36:56,886 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 485 transitions. [2019-10-14 23:36:56,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-10-14 23:36:56,888 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:56,889 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, 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 23:36:56,889 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:56,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:56,889 INFO L82 PathProgramCache]: Analyzing trace with hash 851492262, now seen corresponding path program 1 times [2019-10-14 23:36:56,889 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:56,890 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821931099] [2019-10-14 23:36:56,890 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:56,890 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:56,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:57,235 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:57,389 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 23:36:57,390 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821931099] [2019-10-14 23:36:57,390 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:57,390 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 23:36:57,393 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647986595] [2019-10-14 23:36:57,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:36:57,394 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:57,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:36:57,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:36:57,394 INFO L87 Difference]: Start difference. First operand 414 states and 485 transitions. Second operand 13 states. [2019-10-14 23:36:58,210 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:58,488 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:58,756 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:59,893 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:00,690 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:01,059 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:37:01,367 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:37:01,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:01,953 INFO L93 Difference]: Finished difference Result 820 states and 974 transitions. [2019-10-14 23:37:01,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:37:01,953 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2019-10-14 23:37:01,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:01,955 INFO L225 Difference]: With dead ends: 820 [2019-10-14 23:37:01,955 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:37:01,958 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2019-10-14 23:37:01,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:37:01,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:37:01,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:37:01,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:37:01,961 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2019-10-14 23:37:01,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:01,961 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:37:01,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-14 23:37:01,962 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:37:01,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:37:01,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:37:03,257 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 224 [2019-10-14 23:37:04,300 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 224 [2019-10-14 23:37:04,911 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 224 [2019-10-14 23:37:05,207 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 228 [2019-10-14 23:37:05,339 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 219 [2019-10-14 23:37:05,785 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 16 [2019-10-14 23:37:05,943 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2019-10-14 23:37:06,090 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 1 [2019-10-14 23:37:06,248 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2019-10-14 23:37:06,410 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 1 [2019-10-14 23:37:06,792 WARN L191 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 24 [2019-10-14 23:37:06,936 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 1 [2019-10-14 23:37:07,516 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 21