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_spec2_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:36:56,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:36:56,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:36:56,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:36:56,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:36:56,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:36:56,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:36:56,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:36:56,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:36:56,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:36:56,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:36:56,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:36:56,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:36:56,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:36:56,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:36:56,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:36:56,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:36:56,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:36:56,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:36:56,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:36:56,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:36:56,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:36:56,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:36:56,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:36:56,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:36:56,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:36:56,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:36:56,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:36:56,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:36:56,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:36:56,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:36:56,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:36:56,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:36:56,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:36:56,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:36:56,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:36:56,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:36:56,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:36:56,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:36:56,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:36:56,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:36:56,678 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 19:36:56,693 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:36:56,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:36:56,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:36:56,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:36:56,695 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:36:56,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:36:56,696 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:36:56,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:36:56,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:36:56,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:36:56,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:36:56,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:36:56,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:36:56,697 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:36:56,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:36:56,697 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:36:56,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:36:56,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:36:56,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:36:56,698 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:36:56,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:36:56,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:36:56,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:36:56,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:36:56,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:36:56,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:36:56,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:36:56,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:36:56,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:36:56,978 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:36:56,990 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:36:56,994 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:36:56,995 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:36:56,996 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:36:56,997 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2019-10-13 19:36:57,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ec586662/bdb46413bfeb43249b50beb0d48cc394/FLAGd652e3bc4 [2019-10-13 19:36:57,549 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:36:57,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2019-10-13 19:36:57,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ec586662/bdb46413bfeb43249b50beb0d48cc394/FLAGd652e3bc4 [2019-10-13 19:36:57,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ec586662/bdb46413bfeb43249b50beb0d48cc394 [2019-10-13 19:36:57,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:36:57,904 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:36:57,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:36:57,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:36:57,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:36:57,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:36:57" (1/1) ... [2019-10-13 19:36:57,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@170a06bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:57, skipping insertion in model container [2019-10-13 19:36:57,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:36:57" (1/1) ... [2019-10-13 19:36:57,922 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:36:57,965 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:36:58,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:36:58,381 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:36:58,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:36:58,577 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:36:58,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:58 WrapperNode [2019-10-13 19:36:58,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:36:58,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:36:58,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:36:58,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:36:58,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:58" (1/1) ... [2019-10-13 19:36:58,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:58" (1/1) ... [2019-10-13 19:36:58,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:58" (1/1) ... [2019-10-13 19:36:58,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:58" (1/1) ... [2019-10-13 19:36:58,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:58" (1/1) ... [2019-10-13 19:36:58,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:58" (1/1) ... [2019-10-13 19:36:58,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:58" (1/1) ... [2019-10-13 19:36:58,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:36:58,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:36:58,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:36:58,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:36:58,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:58" (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 19:36:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:36:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:36:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:36:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:36:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:36:58,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:36:58,768 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:36:58,768 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:36:58,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 19:36:58,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 19:36:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:36:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:36:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:36:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:36:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:36:58,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:36:58,773 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:36:58,773 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:36:58,773 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:36:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:36:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-13 19:36:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:36:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:36:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:36:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:36:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:36:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:36:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:36:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 19:36:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 19:36:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:36:58,776 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:36:58,776 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:36:58,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:36:58,776 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:36:58,776 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:36:58,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:36:58,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 19:36:58,777 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:36:58,777 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:36:58,777 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:36:58,777 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:36:58,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:36:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:36:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:36:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:36:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:36:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:36:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:36:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:36:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:36:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:36:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:36:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 19:36:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:36:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:36:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:36:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:36:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:36:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:36:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:36:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:36:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:36:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 19:36:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:36:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:36:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:36:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:36:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:36:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:36:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:36:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:36:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:36:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:36:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:36:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:36:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:36:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:36:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:36:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:36:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:36:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 19:36:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:36:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:36:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:36:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 19:36:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:36:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:36:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:36:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:36:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:36:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:36:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 19:36:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-13 19:36:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:36:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:36:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:36:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:36:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:36:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:36:59,984 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:36:59,985 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:36:59,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:36:59 BoogieIcfgContainer [2019-10-13 19:36:59,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:36:59,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:36:59,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:36:59,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:36:59,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:36:57" (1/3) ... [2019-10-13 19:36:59,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297dbd18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:36:59, skipping insertion in model container [2019-10-13 19:36:59,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:58" (2/3) ... [2019-10-13 19:36:59,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297dbd18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:36:59, skipping insertion in model container [2019-10-13 19:36:59,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:36:59" (3/3) ... [2019-10-13 19:36:59,998 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product54.cil.c [2019-10-13 19:37:00,008 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:37:00,017 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:37:00,029 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:37:00,066 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:37:00,067 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:37:00,067 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:37:00,067 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:37:00,067 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:37:00,068 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:37:00,068 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:37:00,068 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:37:00,091 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states. [2019-10-13 19:37:00,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 19:37:00,101 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:00,103 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 19:37:00,105 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:00,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:00,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1445624956, now seen corresponding path program 1 times [2019-10-13 19:37:00,119 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:00,120 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836581806] [2019-10-13 19:37:00,120 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:00,121 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:00,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:00,818 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:00,952 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 19:37:00,953 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836581806] [2019-10-13 19:37:00,954 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:00,955 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:37:00,955 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750337120] [2019-10-13 19:37:00,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:37:00,962 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:00,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:37:00,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:37:00,980 INFO L87 Difference]: Start difference. First operand 195 states. Second operand 4 states. [2019-10-13 19:37:02,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:02,318 INFO L93 Difference]: Finished difference Result 338 states and 440 transitions. [2019-10-13 19:37:02,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:37:02,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-10-13 19:37:02,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:02,336 INFO L225 Difference]: With dead ends: 338 [2019-10-13 19:37:02,336 INFO L226 Difference]: Without dead ends: 187 [2019-10-13 19:37:02,341 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:37:02,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2019-10-13 19:37:02,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 152. [2019-10-13 19:37:02,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-10-13 19:37:02,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 180 transitions. [2019-10-13 19:37:02,478 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 180 transitions. Word has length 51 [2019-10-13 19:37:02,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:02,479 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 180 transitions. [2019-10-13 19:37:02,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:37:02,479 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 180 transitions. [2019-10-13 19:37:02,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 19:37:02,483 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:02,483 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:02,484 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:02,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:02,484 INFO L82 PathProgramCache]: Analyzing trace with hash 313505704, now seen corresponding path program 1 times [2019-10-13 19:37:02,485 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:02,485 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801461382] [2019-10-13 19:37:02,485 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:02,485 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:02,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:02,815 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:02,871 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 19:37:02,872 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801461382] [2019-10-13 19:37:02,872 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:02,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:37:02,872 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719382004] [2019-10-13 19:37:02,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:37:02,875 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:02,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:37:02,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:37:02,875 INFO L87 Difference]: Start difference. First operand 152 states and 180 transitions. Second operand 5 states. [2019-10-13 19:37:03,478 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:04,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:04,580 INFO L93 Difference]: Finished difference Result 279 states and 347 transitions. [2019-10-13 19:37:04,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:37:04,585 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-10-13 19:37:04,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:04,588 INFO L225 Difference]: With dead ends: 279 [2019-10-13 19:37:04,588 INFO L226 Difference]: Without dead ends: 177 [2019-10-13 19:37:04,590 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:37:04,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2019-10-13 19:37:04,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 143. [2019-10-13 19:37:04,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-10-13 19:37:04,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2019-10-13 19:37:04,642 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 52 [2019-10-13 19:37:04,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:04,642 INFO L462 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2019-10-13 19:37:04,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:37:04,642 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2019-10-13 19:37:04,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-13 19:37:04,654 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:04,654 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:04,654 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:04,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:04,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1935207340, now seen corresponding path program 1 times [2019-10-13 19:37:04,655 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:04,655 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50953784] [2019-10-13 19:37:04,655 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:04,655 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:04,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,033 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,125 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 19:37:05,125 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50953784] [2019-10-13 19:37:05,125 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:05,126 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:37:05,126 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695783148] [2019-10-13 19:37:05,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:37:05,127 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:05,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:37:05,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:37:05,127 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 9 states. [2019-10-13 19:37:05,592 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:05,956 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:37:06,246 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:06,544 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:08,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:08,245 INFO L93 Difference]: Finished difference Result 292 states and 366 transitions. [2019-10-13 19:37:08,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:37:08,245 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-10-13 19:37:08,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:08,249 INFO L225 Difference]: With dead ends: 292 [2019-10-13 19:37:08,249 INFO L226 Difference]: Without dead ends: 177 [2019-10-13 19:37:08,251 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:37:08,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2019-10-13 19:37:08,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 143. [2019-10-13 19:37:08,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-10-13 19:37:08,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2019-10-13 19:37:08,287 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 57 [2019-10-13 19:37:08,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:08,287 INFO L462 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2019-10-13 19:37:08,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:37:08,288 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2019-10-13 19:37:08,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-10-13 19:37:08,289 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:08,289 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] [2019-10-13 19:37:08,289 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:08,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:08,290 INFO L82 PathProgramCache]: Analyzing trace with hash 979214064, now seen corresponding path program 1 times [2019-10-13 19:37:08,290 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:08,290 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873349251] [2019-10-13 19:37:08,290 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:08,291 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:08,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:08,592 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:08,694 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 19:37:08,695 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873349251] [2019-10-13 19:37:08,695 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:08,695 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:37:08,695 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873312329] [2019-10-13 19:37:08,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:37:08,696 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:08,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:37:08,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:37:08,697 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand 7 states. [2019-10-13 19:37:09,087 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:10,528 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:11,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:11,435 INFO L93 Difference]: Finished difference Result 397 states and 501 transitions. [2019-10-13 19:37:11,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:37:11,436 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 75 [2019-10-13 19:37:11,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:11,440 INFO L225 Difference]: With dead ends: 397 [2019-10-13 19:37:11,441 INFO L226 Difference]: Without dead ends: 282 [2019-10-13 19:37:11,442 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:37:11,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2019-10-13 19:37:11,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 233. [2019-10-13 19:37:11,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-10-13 19:37:11,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 266 transitions. [2019-10-13 19:37:11,499 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 266 transitions. Word has length 75 [2019-10-13 19:37:11,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:11,499 INFO L462 AbstractCegarLoop]: Abstraction has 233 states and 266 transitions. [2019-10-13 19:37:11,499 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:37:11,499 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 266 transitions. [2019-10-13 19:37:11,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-13 19:37:11,501 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:11,501 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:11,501 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:11,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:11,502 INFO L82 PathProgramCache]: Analyzing trace with hash -919866488, now seen corresponding path program 1 times [2019-10-13 19:37:11,502 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:11,502 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192235225] [2019-10-13 19:37:11,503 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:11,503 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:11,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:11,845 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:11,964 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 19:37:11,964 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192235225] [2019-10-13 19:37:11,964 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:11,965 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:37:11,965 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360011262] [2019-10-13 19:37:11,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:37:11,966 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:11,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:37:11,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:37:11,966 INFO L87 Difference]: Start difference. First operand 233 states and 266 transitions. Second operand 9 states. [2019-10-13 19:37:12,589 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:14,084 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:14,386 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:14,676 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:14,938 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:16,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:16,574 INFO L93 Difference]: Finished difference Result 695 states and 864 transitions. [2019-10-13 19:37:16,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 19:37:16,577 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2019-10-13 19:37:16,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:16,582 INFO L225 Difference]: With dead ends: 695 [2019-10-13 19:37:16,582 INFO L226 Difference]: Without dead ends: 490 [2019-10-13 19:37:16,584 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2019-10-13 19:37:16,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2019-10-13 19:37:16,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 414. [2019-10-13 19:37:16,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2019-10-13 19:37:16,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 472 transitions. [2019-10-13 19:37:16,695 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 472 transitions. Word has length 89 [2019-10-13 19:37:16,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:16,695 INFO L462 AbstractCegarLoop]: Abstraction has 414 states and 472 transitions. [2019-10-13 19:37:16,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:37:16,696 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 472 transitions. [2019-10-13 19:37:16,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-13 19:37:16,697 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:16,697 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:16,698 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:16,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:16,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1008826772, now seen corresponding path program 1 times [2019-10-13 19:37:16,698 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:16,699 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356566702] [2019-10-13 19:37:16,699 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:16,699 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:16,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,039 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:17,174 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 19:37:17,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356566702] [2019-10-13 19:37:17,175 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:17,175 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:37:17,175 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203178103] [2019-10-13 19:37:17,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:37:17,176 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:17,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:37:17,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:37:17,177 INFO L87 Difference]: Start difference. First operand 414 states and 472 transitions. Second operand 10 states. [2019-10-13 19:37:17,643 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:19,043 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:19,298 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:19,555 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:19,840 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:21,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:21,307 INFO L93 Difference]: Finished difference Result 914 states and 1119 transitions. [2019-10-13 19:37:21,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-13 19:37:21,307 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 93 [2019-10-13 19:37:21,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:21,312 INFO L225 Difference]: With dead ends: 914 [2019-10-13 19:37:21,313 INFO L226 Difference]: Without dead ends: 528 [2019-10-13 19:37:21,314 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2019-10-13 19:37:21,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2019-10-13 19:37:21,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 413. [2019-10-13 19:37:21,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-10-13 19:37:21,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 469 transitions. [2019-10-13 19:37:21,404 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 469 transitions. Word has length 93 [2019-10-13 19:37:21,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:21,405 INFO L462 AbstractCegarLoop]: Abstraction has 413 states and 469 transitions. [2019-10-13 19:37:21,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:37:21,405 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 469 transitions. [2019-10-13 19:37:21,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-13 19:37:21,407 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:21,407 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:21,407 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:21,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:21,408 INFO L82 PathProgramCache]: Analyzing trace with hash 390870795, now seen corresponding path program 1 times [2019-10-13 19:37:21,408 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:21,408 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360992752] [2019-10-13 19:37:21,408 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:21,409 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:21,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,669 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:21,832 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 19:37:21,832 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360992752] [2019-10-13 19:37:21,833 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:21,833 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:37:21,833 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633096088] [2019-10-13 19:37:21,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:37:21,834 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:21,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:37:21,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:37:21,835 INFO L87 Difference]: Start difference. First operand 413 states and 469 transitions. Second operand 10 states. [2019-10-13 19:37:23,305 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:23,570 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-13 19:37:23,840 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:24,096 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:25,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:25,574 INFO L93 Difference]: Finished difference Result 917 states and 1130 transitions. [2019-10-13 19:37:25,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:37:25,574 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 94 [2019-10-13 19:37:25,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:25,578 INFO L225 Difference]: With dead ends: 917 [2019-10-13 19:37:25,578 INFO L226 Difference]: Without dead ends: 532 [2019-10-13 19:37:25,579 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:37:25,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2019-10-13 19:37:25,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 423. [2019-10-13 19:37:25,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 423 states. [2019-10-13 19:37:25,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 479 transitions. [2019-10-13 19:37:25,654 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 479 transitions. Word has length 94 [2019-10-13 19:37:25,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:25,654 INFO L462 AbstractCegarLoop]: Abstraction has 423 states and 479 transitions. [2019-10-13 19:37:25,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:37:25,655 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 479 transitions. [2019-10-13 19:37:25,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-13 19:37:25,656 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:25,656 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:25,657 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:25,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:25,657 INFO L82 PathProgramCache]: Analyzing trace with hash 318484237, now seen corresponding path program 1 times [2019-10-13 19:37:25,657 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:25,657 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862793074] [2019-10-13 19:37:25,658 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:25,658 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:25,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:25,928 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:25,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:26,063 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 19:37:26,063 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862793074] [2019-10-13 19:37:26,063 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:26,064 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:37:26,064 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530404898] [2019-10-13 19:37:26,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:37:26,065 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:26,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:37:26,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:37:26,065 INFO L87 Difference]: Start difference. First operand 423 states and 479 transitions. Second operand 12 states. [2019-10-13 19:37:26,708 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:26,968 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:27,216 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:27,997 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:28,273 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:28,558 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:30,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:30,104 INFO L93 Difference]: Finished difference Result 941 states and 1174 transitions. [2019-10-13 19:37:30,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:37:30,105 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2019-10-13 19:37:30,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:30,109 INFO L225 Difference]: With dead ends: 941 [2019-10-13 19:37:30,109 INFO L226 Difference]: Without dead ends: 546 [2019-10-13 19:37:30,111 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2019-10-13 19:37:30,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2019-10-13 19:37:30,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 431. [2019-10-13 19:37:30,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2019-10-13 19:37:30,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 487 transitions. [2019-10-13 19:37:30,179 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 487 transitions. Word has length 94 [2019-10-13 19:37:30,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:30,179 INFO L462 AbstractCegarLoop]: Abstraction has 431 states and 487 transitions. [2019-10-13 19:37:30,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:37:30,180 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 487 transitions. [2019-10-13 19:37:30,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-13 19:37:30,181 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:30,181 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:30,182 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:30,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:30,182 INFO L82 PathProgramCache]: Analyzing trace with hash 648249998, now seen corresponding path program 1 times [2019-10-13 19:37:30,182 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:30,182 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634186368] [2019-10-13 19:37:30,183 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:30,183 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:30,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,472 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,612 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 19:37:30,612 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634186368] [2019-10-13 19:37:30,612 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:30,613 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:37:30,613 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855969984] [2019-10-13 19:37:30,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:37:30,613 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:30,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:37:30,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:37:30,616 INFO L87 Difference]: Start difference. First operand 431 states and 487 transitions. Second operand 8 states. [2019-10-13 19:37:31,003 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:31,604 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:34,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:34,337 INFO L93 Difference]: Finished difference Result 1309 states and 1687 transitions. [2019-10-13 19:37:34,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-13 19:37:34,337 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2019-10-13 19:37:34,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:34,344 INFO L225 Difference]: With dead ends: 1309 [2019-10-13 19:37:34,344 INFO L226 Difference]: Without dead ends: 906 [2019-10-13 19:37:34,346 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2019-10-13 19:37:34,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2019-10-13 19:37:34,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 761. [2019-10-13 19:37:34,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 761 states. [2019-10-13 19:37:34,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 889 transitions. [2019-10-13 19:37:34,486 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 889 transitions. Word has length 94 [2019-10-13 19:37:34,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:34,487 INFO L462 AbstractCegarLoop]: Abstraction has 761 states and 889 transitions. [2019-10-13 19:37:34,487 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:37:34,487 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 889 transitions. [2019-10-13 19:37:34,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 19:37:34,489 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:34,489 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:34,490 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:34,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:34,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1149612728, now seen corresponding path program 1 times [2019-10-13 19:37:34,490 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:34,491 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397003662] [2019-10-13 19:37:34,491 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:34,491 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:34,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,774 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:34,867 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 19:37:34,868 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397003662] [2019-10-13 19:37:34,868 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:34,868 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:37:34,868 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722171912] [2019-10-13 19:37:34,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:37:34,869 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:34,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:37:34,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:37:34,870 INFO L87 Difference]: Start difference. First operand 761 states and 889 transitions. Second operand 8 states. [2019-10-13 19:37:35,413 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189