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_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:34:49,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:34:49,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:34:49,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:34:49,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:34:49,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:34:49,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:34:49,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:34:49,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:34:49,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:34:49,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:34:49,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:34:49,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:34:49,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:34:49,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:34:49,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:34:49,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:34:49,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:34:49,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:34:49,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:34:49,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:34:49,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:34:49,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:34:49,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:34:49,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:34:49,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:34:49,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:34:49,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:34:49,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:34:49,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:34:49,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:34:49,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:34:49,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:34:49,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:34:49,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:34:49,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:34:49,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:34:49,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:34:49,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:34:49,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:34:49,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:34:49,550 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 [2019-10-13 19:34:49,564 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:34:49,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:34:49,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:34:49,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:34:49,566 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:34:49,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:34:49,566 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:34:49,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:34:49,567 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:34:49,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:34:49,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:34:49,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:34:49,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:34:49,568 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:34:49,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:34:49,568 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:34:49,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:34:49,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:34:49,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:34:49,569 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:34:49,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:34:49,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:34:49,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:34:49,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:34:49,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:34:49,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:34:49,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:34:49,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:34:49,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:34:49,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:34:49,884 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:34:49,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:34:49,890 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:34:49,890 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:34:49,891 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2019-10-13 19:34:49,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdbc8f5c2/3b0b7a5112904dc4b60f973b6bbe4725/FLAGda8933d3c [2019-10-13 19:34:50,512 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:34:50,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2019-10-13 19:34:50,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdbc8f5c2/3b0b7a5112904dc4b60f973b6bbe4725/FLAGda8933d3c [2019-10-13 19:34:50,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdbc8f5c2/3b0b7a5112904dc4b60f973b6bbe4725 [2019-10-13 19:34:50,799 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:34:50,801 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:34:50,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:34:50,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:34:50,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:34:50,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:34:50" (1/1) ... [2019-10-13 19:34:50,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b22563b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:50, skipping insertion in model container [2019-10-13 19:34:50,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:34:50" (1/1) ... [2019-10-13 19:34:50,819 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:34:50,870 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:34:51,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:34:51,351 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:34:51,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:34:51,486 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:34:51,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:51 WrapperNode [2019-10-13 19:34:51,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:34:51,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:34:51,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:34:51,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:34:51,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:51" (1/1) ... [2019-10-13 19:34:51,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:51" (1/1) ... [2019-10-13 19:34:51,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:51" (1/1) ... [2019-10-13 19:34:51,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:51" (1/1) ... [2019-10-13 19:34:51,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:51" (1/1) ... [2019-10-13 19:34:51,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:51" (1/1) ... [2019-10-13 19:34:51,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:51" (1/1) ... [2019-10-13 19:34:51,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:34:51,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:34:51,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:34:51,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:34:51,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:51" (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 [2019-10-13 19:34:51,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:34:51,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:34:51,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:34:51,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-13 19:34:51,622 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:34:51,622 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:34:51,622 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:34:51,622 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:34:51,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:34:51,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:34:51,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:34:51,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:34:51,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:34:51,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:34:51,624 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:34:51,624 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:34:51,624 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:34:51,624 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:34:51,624 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:34:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 19:34:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:34:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:34:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:34:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:34:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:34:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:34:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 19:34:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:34:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:34:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:34:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:34:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:34:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:34:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:34:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:34:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:34:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:34:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:34:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:34:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 19:34:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:34:51,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:34:51,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:34:51,628 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:34:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:34:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:34:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:34:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-13 19:34:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:34:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:34:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:34:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:34:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:34:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:34:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:34:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:34:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:34:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:34:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:34:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:34:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:34:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:34:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:34:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:34:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:34:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:34:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:34:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:34:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:34:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:34:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:34:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:34:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:34:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:34:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:34:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:34:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:34:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 19:34:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:34:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:34:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:34:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:34:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:34:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:34:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:34:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 19:34:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 19:34:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:34:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:34:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:34:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:34:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:34:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:34:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:34:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:34:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:34:52,763 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:34:52,763 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:34:52,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:52 BoogieIcfgContainer [2019-10-13 19:34:52,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:34:52,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:34:52,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:34:52,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:34:52,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:34:50" (1/3) ... [2019-10-13 19:34:52,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b63887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:34:52, skipping insertion in model container [2019-10-13 19:34:52,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:51" (2/3) ... [2019-10-13 19:34:52,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b63887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:34:52, skipping insertion in model container [2019-10-13 19:34:52,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:52" (3/3) ... [2019-10-13 19:34:52,777 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2019-10-13 19:34:52,787 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:34:52,799 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:34:52,811 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:34:52,846 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:34:52,846 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:34:52,847 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:34:52,847 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:34:52,847 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:34:52,847 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:34:52,847 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:34:52,847 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:34:52,869 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2019-10-13 19:34:52,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 19:34:52,878 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:34:52,880 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] [2019-10-13 19:34:52,882 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:34:52,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:34:52,888 INFO L82 PathProgramCache]: Analyzing trace with hash 135364863, now seen corresponding path program 1 times [2019-10-13 19:34:52,897 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:34:52,898 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727193367] [2019-10-13 19:34:52,898 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:52,899 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:52,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:34:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:53,577 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:34:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:53,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:34:53,663 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727193367] [2019-10-13 19:34:53,664 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:34:53,672 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:34:53,673 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001262447] [2019-10-13 19:34:53,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:34:53,680 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:34:53,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:34:53,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:34:53,700 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 3 states. [2019-10-13 19:34:54,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:34:54,908 INFO L93 Difference]: Finished difference Result 323 states and 418 transitions. [2019-10-13 19:34:54,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:34:54,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-10-13 19:34:54,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:34:54,925 INFO L225 Difference]: With dead ends: 323 [2019-10-13 19:34:54,925 INFO L226 Difference]: Without dead ends: 174 [2019-10-13 19:34:54,930 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 [2019-10-13 19:34:54,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2019-10-13 19:34:55,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 140. [2019-10-13 19:34:55,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-10-13 19:34:55,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 164 transitions. [2019-10-13 19:34:55,018 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 164 transitions. Word has length 46 [2019-10-13 19:34:55,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:34:55,019 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 164 transitions. [2019-10-13 19:34:55,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:34:55,019 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 164 transitions. [2019-10-13 19:34:55,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 19:34:55,022 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:34:55,023 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] [2019-10-13 19:34:55,023 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:34:55,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:34:55,024 INFO L82 PathProgramCache]: Analyzing trace with hash 327228860, now seen corresponding path program 1 times [2019-10-13 19:34:55,024 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:34:55,024 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152891519] [2019-10-13 19:34:55,024 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:55,024 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:55,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:34:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,384 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:34:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:55,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:34:55,417 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152891519] [2019-10-13 19:34:55,417 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:34:55,418 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:34:55,418 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856582909] [2019-10-13 19:34:55,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:34:55,422 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:34:55,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:34:55,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:34:55,422 INFO L87 Difference]: Start difference. First operand 140 states and 164 transitions. Second operand 4 states. [2019-10-13 19:34:55,846 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:34:56,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:34:56,702 INFO L93 Difference]: Finished difference Result 256 states and 309 transitions. [2019-10-13 19:34:56,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:34:56,704 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2019-10-13 19:34:56,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:34:56,707 INFO L225 Difference]: With dead ends: 256 [2019-10-13 19:34:56,710 INFO L226 Difference]: Without dead ends: 158 [2019-10-13 19:34:56,712 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:34:56,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-10-13 19:34:56,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 131. [2019-10-13 19:34:56,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-13 19:34:56,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 152 transitions. [2019-10-13 19:34:56,748 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 152 transitions. Word has length 47 [2019-10-13 19:34:56,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:34:56,748 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 152 transitions. [2019-10-13 19:34:56,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:34:56,748 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 152 transitions. [2019-10-13 19:34:56,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 19:34:56,750 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:34:56,751 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] [2019-10-13 19:34:56,751 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:34:56,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:34:56,751 INFO L82 PathProgramCache]: Analyzing trace with hash -207054876, now seen corresponding path program 1 times [2019-10-13 19:34:56,751 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:34:56,752 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390161996] [2019-10-13 19:34:56,752 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:56,752 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:34:56,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:34:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:57,124 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:34:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:34:57,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:34:57,229 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390161996] [2019-10-13 19:34:57,229 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:34:57,229 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:34:57,229 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912825243] [2019-10-13 19:34:57,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:34:57,230 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:34:57,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:34:57,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:34:57,231 INFO L87 Difference]: Start difference. First operand 131 states and 152 transitions. Second operand 8 states. [2019-10-13 19:34:57,707 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:34:58,040 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:34:58,333 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:34:58,597 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:34:59,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:34:59,962 INFO L93 Difference]: Finished difference Result 265 states and 323 transitions. [2019-10-13 19:34:59,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:34:59,963 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2019-10-13 19:34:59,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:34:59,966 INFO L225 Difference]: With dead ends: 265 [2019-10-13 19:34:59,966 INFO L226 Difference]: Without dead ends: 158 [2019-10-13 19:34:59,967 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:34:59,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-10-13 19:35:00,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 131. [2019-10-13 19:35:00,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-13 19:35:00,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 151 transitions. [2019-10-13 19:35:00,004 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 151 transitions. Word has length 51 [2019-10-13 19:35:00,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:00,005 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 151 transitions. [2019-10-13 19:35:00,005 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:35:00,005 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 151 transitions. [2019-10-13 19:35:00,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-13 19:35:00,007 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:00,008 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] [2019-10-13 19:35:00,008 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:00,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:00,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1468702982, now seen corresponding path program 1 times [2019-10-13 19:35:00,009 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:00,009 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275547251] [2019-10-13 19:35:00,009 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:00,009 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:00,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:00,324 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:00,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:35:00,411 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275547251] [2019-10-13 19:35:00,412 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:00,412 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 19:35:00,412 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954620259] [2019-10-13 19:35:00,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 19:35:00,413 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:00,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 19:35:00,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:35:00,413 INFO L87 Difference]: Start difference. First operand 131 states and 151 transitions. Second operand 6 states. [2019-10-13 19:35:00,820 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:02,118 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:02,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:02,893 INFO L93 Difference]: Finished difference Result 357 states and 439 transitions. [2019-10-13 19:35:02,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 19:35:02,894 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2019-10-13 19:35:02,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:02,898 INFO L225 Difference]: With dead ends: 357 [2019-10-13 19:35:02,898 INFO L226 Difference]: Without dead ends: 250 [2019-10-13 19:35:02,899 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:35:02,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2019-10-13 19:35:02,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 209. [2019-10-13 19:35:02,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2019-10-13 19:35:02,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 238 transitions. [2019-10-13 19:35:02,944 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 238 transitions. Word has length 64 [2019-10-13 19:35:02,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:02,945 INFO L462 AbstractCegarLoop]: Abstraction has 209 states and 238 transitions. [2019-10-13 19:35:02,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 19:35:02,945 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 238 transitions. [2019-10-13 19:35:02,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-13 19:35:02,947 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:02,947 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] [2019-10-13 19:35:02,947 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:02,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:02,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1930431345, now seen corresponding path program 1 times [2019-10-13 19:35:02,948 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:02,948 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2533226] [2019-10-13 19:35:02,948 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:02,949 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:02,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,250 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:03,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:35:03,364 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2533226] [2019-10-13 19:35:03,365 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:03,365 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:35:03,365 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526017643] [2019-10-13 19:35:03,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:35:03,366 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:03,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:35:03,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:35:03,366 INFO L87 Difference]: Start difference. First operand 209 states and 238 transitions. Second operand 8 states. [2019-10-13 19:35:03,894 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:04,997 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:05,356 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:05,999 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:06,270 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:06,588 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:07,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:07,710 INFO L93 Difference]: Finished difference Result 622 states and 764 transitions. [2019-10-13 19:35:07,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:35:07,711 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2019-10-13 19:35:07,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:07,716 INFO L225 Difference]: With dead ends: 622 [2019-10-13 19:35:07,716 INFO L226 Difference]: Without dead ends: 437 [2019-10-13 19:35:07,718 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2019-10-13 19:35:07,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2019-10-13 19:35:07,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 373. [2019-10-13 19:35:07,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-10-13 19:35:07,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 426 transitions. [2019-10-13 19:35:07,794 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 426 transitions. Word has length 78 [2019-10-13 19:35:07,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:07,794 INFO L462 AbstractCegarLoop]: Abstraction has 373 states and 426 transitions. [2019-10-13 19:35:07,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:35:07,795 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 426 transitions. [2019-10-13 19:35:07,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-13 19:35:07,797 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:07,797 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:35:07,797 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:07,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:07,797 INFO L82 PathProgramCache]: Analyzing trace with hash -613018165, now seen corresponding path program 1 times [2019-10-13 19:35:07,798 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:07,798 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246415425] [2019-10-13 19:35:07,798 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:07,798 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:07,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:08,121 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:08,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:35:08,224 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246415425] [2019-10-13 19:35:08,224 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:08,224 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:35:08,224 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415493132] [2019-10-13 19:35:08,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:35:08,225 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:08,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:35:08,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:35:08,226 INFO L87 Difference]: Start difference. First operand 373 states and 426 transitions. Second operand 9 states. [2019-10-13 19:35:08,740 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:10,021 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:10,329 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:11,447 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:11,711 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:11,983 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:12,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:12,207 INFO L93 Difference]: Finished difference Result 476 states and 594 transitions. [2019-10-13 19:35:12,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 19:35:12,208 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2019-10-13 19:35:12,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:12,213 INFO L225 Difference]: With dead ends: 476 [2019-10-13 19:35:12,213 INFO L226 Difference]: Without dead ends: 473 [2019-10-13 19:35:12,214 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-13 19:35:12,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2019-10-13 19:35:12,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 373. [2019-10-13 19:35:12,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-10-13 19:35:12,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 425 transitions. [2019-10-13 19:35:12,286 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 425 transitions. Word has length 82 [2019-10-13 19:35:12,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:12,287 INFO L462 AbstractCegarLoop]: Abstraction has 373 states and 425 transitions. [2019-10-13 19:35:12,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:35:12,287 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 425 transitions. [2019-10-13 19:35:12,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 19:35:12,289 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:12,289 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] [2019-10-13 19:35:12,289 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:12,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:12,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1664141551, now seen corresponding path program 1 times [2019-10-13 19:35:12,290 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:12,290 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28588312] [2019-10-13 19:35:12,290 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:12,290 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:12,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,547 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:12,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:35:12,687 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28588312] [2019-10-13 19:35:12,687 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:12,687 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:35:12,688 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784941161] [2019-10-13 19:35:12,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:35:12,688 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:12,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:35:12,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:35:12,689 INFO L87 Difference]: Start difference. First operand 373 states and 425 transitions. Second operand 9 states. [2019-10-13 19:35:13,751 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:14,016 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:35:14,281 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:14,535 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:15,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:15,721 INFO L93 Difference]: Finished difference Result 830 states and 1028 transitions. [2019-10-13 19:35:15,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 19:35:15,721 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2019-10-13 19:35:15,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:15,726 INFO L225 Difference]: With dead ends: 830 [2019-10-13 19:35:15,726 INFO L226 Difference]: Without dead ends: 481 [2019-10-13 19:35:15,728 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:35:15,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2019-10-13 19:35:15,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 383. [2019-10-13 19:35:15,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2019-10-13 19:35:15,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 435 transitions. [2019-10-13 19:35:15,837 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 435 transitions. Word has length 98 [2019-10-13 19:35:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:15,838 INFO L462 AbstractCegarLoop]: Abstraction has 383 states and 435 transitions. [2019-10-13 19:35:15,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:35:15,838 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 435 transitions. [2019-10-13 19:35:15,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 19:35:15,842 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:15,842 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] [2019-10-13 19:35:15,843 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:15,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:15,843 INFO L82 PathProgramCache]: Analyzing trace with hash -770655213, now seen corresponding path program 1 times [2019-10-13 19:35:15,843 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:15,844 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187975949] [2019-10-13 19:35:15,844 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:15,844 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:15,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,128 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:16,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:35:16,275 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187975949] [2019-10-13 19:35:16,281 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:16,281 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:35:16,282 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619613973] [2019-10-13 19:35:16,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:35:16,283 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:16,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:35:16,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:35:16,284 INFO L87 Difference]: Start difference. First operand 383 states and 435 transitions. Second operand 11 states. [2019-10-13 19:35:17,285 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-13 19:35:17,552 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:17,798 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:18,440 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:18,708 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:18,957 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:35:20,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:20,163 INFO L93 Difference]: Finished difference Result 850 states and 1050 transitions. [2019-10-13 19:35:20,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:35:20,164 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2019-10-13 19:35:20,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:20,167 INFO L225 Difference]: With dead ends: 850 [2019-10-13 19:35:20,167 INFO L226 Difference]: Without dead ends: 491 [2019-10-13 19:35:20,169 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:35:20,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2019-10-13 19:35:20,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 391. [2019-10-13 19:35:20,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2019-10-13 19:35:20,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 443 transitions. [2019-10-13 19:35:20,232 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 443 transitions. Word has length 98 [2019-10-13 19:35:20,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:20,233 INFO L462 AbstractCegarLoop]: Abstraction has 391 states and 443 transitions. [2019-10-13 19:35:20,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:35:20,233 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 443 transitions. [2019-10-13 19:35:20,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 19:35:20,235 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:20,235 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] [2019-10-13 19:35:20,235 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:20,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:20,236 INFO L82 PathProgramCache]: Analyzing trace with hash -778414572, now seen corresponding path program 1 times [2019-10-13 19:35:20,236 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:20,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015624330] [2019-10-13 19:35:20,236 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:20,236 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:20,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,513 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:20,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:35:20,678 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015624330] [2019-10-13 19:35:20,679 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:35:20,679 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:35:20,679 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118530406] [2019-10-13 19:35:20,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:35:20,680 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:20,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:35:20,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:35:20,681 INFO L87 Difference]: Start difference. First operand 391 states and 443 transitions. Second operand 7 states. [2019-10-13 19:35:21,216 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:21,738 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-13 19:35:23,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:23,807 INFO L93 Difference]: Finished difference Result 1153 states and 1472 transitions. [2019-10-13 19:35:23,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 19:35:23,807 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 98 [2019-10-13 19:35:23,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:23,813 INFO L225 Difference]: With dead ends: 1153 [2019-10-13 19:35:23,813 INFO L226 Difference]: Without dead ends: 786 [2019-10-13 19:35:23,815 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:35:23,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2019-10-13 19:35:23,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 687. [2019-10-13 19:35:23,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 687 states. [2019-10-13 19:35:23,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 813 transitions. [2019-10-13 19:35:23,938 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 813 transitions. Word has length 98 [2019-10-13 19:35:23,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:23,938 INFO L462 AbstractCegarLoop]: Abstraction has 687 states and 813 transitions. [2019-10-13 19:35:23,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:35:23,938 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 813 transitions. [2019-10-13 19:35:23,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-10-13 19:35:23,940 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:23,941 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] [2019-10-13 19:35:23,941 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:23,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:23,941 INFO L82 PathProgramCache]: Analyzing trace with hash 469491758, now seen corresponding path program 1 times [2019-10-13 19:35:23,942 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:23,942 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701169208] [2019-10-13 19:35:23,942 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:23,942 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:23,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,217 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:35:24,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701169208] [2019-10-13 19:35:24,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773855941] [2019-10-13 19:35:24,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:35:24,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:24,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 19:35:24,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:35:24,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:35:24,892 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-13 19:35:24,892 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2019-10-13 19:35:24,893 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336601560] [2019-10-13 19:35:24,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:35:24,893 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:24,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:35:24,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2019-10-13 19:35:24,895 INFO L87 Difference]: Start difference. First operand 687 states and 813 transitions. Second operand 8 states. [2019-10-13 19:35:25,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:25,439 INFO L93 Difference]: Finished difference Result 1316 states and 1568 transitions. [2019-10-13 19:35:25,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:35:25,440 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2019-10-13 19:35:25,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:25,444 INFO L225 Difference]: With dead ends: 1316 [2019-10-13 19:35:25,444 INFO L226 Difference]: Without dead ends: 653 [2019-10-13 19:35:25,447 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 127 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2019-10-13 19:35:25,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2019-10-13 19:35:25,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 653. [2019-10-13 19:35:25,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2019-10-13 19:35:25,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 759 transitions. [2019-10-13 19:35:25,580 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 759 transitions. Word has length 102 [2019-10-13 19:35:25,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:25,581 INFO L462 AbstractCegarLoop]: Abstraction has 653 states and 759 transitions. [2019-10-13 19:35:25,581 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:35:25,581 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 759 transitions. [2019-10-13 19:35:25,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 19:35:25,585 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:25,585 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:35:25,790 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:35:25,790 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:35:25,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:35:25,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1698521745, now seen corresponding path program 1 times [2019-10-13 19:35:25,791 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:35:25,792 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109316400] [2019-10-13 19:35:25,792 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:25,792 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:35:25,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:35:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,258 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 19:35:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,674 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 19:35:26,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109316400] [2019-10-13 19:35:26,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771075251] [2019-10-13 19:35:26,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:35:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:35:26,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-13 19:35:26,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:35:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:35:27,203 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-13 19:35:27,203 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 19 [2019-10-13 19:35:27,204 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224888720] [2019-10-13 19:35:27,205 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:35:27,205 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:35:27,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:35:27,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2019-10-13 19:35:27,206 INFO L87 Difference]: Start difference. First operand 653 states and 759 transitions. Second operand 9 states. [2019-10-13 19:35:28,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:35:28,857 INFO L93 Difference]: Finished difference Result 1670 states and 2163 transitions. [2019-10-13 19:35:28,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:35:28,857 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 155 [2019-10-13 19:35:28,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:35:28,866 INFO L225 Difference]: With dead ends: 1670 [2019-10-13 19:35:28,866 INFO L226 Difference]: Without dead ends: 1165 [2019-10-13 19:35:28,869 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 202 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=121, Invalid=529, Unknown=0, NotChecked=0, Total=650 [2019-10-13 19:35:28,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2019-10-13 19:35:29,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 931. [2019-10-13 19:35:29,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2019-10-13 19:35:29,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1094 transitions. [2019-10-13 19:35:29,046 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1094 transitions. Word has length 155 [2019-10-13 19:35:29,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:35:29,047 INFO L462 AbstractCegarLoop]: Abstraction has 931 states and 1094 transitions. [2019-10-13 19:35:29,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:35:29,047 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1094 transitions. [2019-10-13 19:35:29,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 19:35:29,049 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:35:29,050 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]