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_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:35:34,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:35:34,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:35:34,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:35:34,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:35:34,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:35:34,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:35:34,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:35:34,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:35:34,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:35:34,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:35:34,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:35:34,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:35:34,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:35:34,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:35:34,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:35:34,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:35:34,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:35:34,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:35:34,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:35:34,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:35:34,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:35:34,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:35:34,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:35:34,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:35:34,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:35:34,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:35:34,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:35:34,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:35:34,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:35:34,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:35:34,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:35:34,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:35:34,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:35:34,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:35:34,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:35:34,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:35:34,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:35:34,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:35:34,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:35:34,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:35:34,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:35:34,609 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:35:34,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:35:34,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:35:34,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:35:34,613 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:35:34,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:35:34,613 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:35:34,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:35:34,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:35:34,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:35:34,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:35:34,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:35:34,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:35:34,615 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:35:34,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:35:34,616 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:35:34,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:35:34,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:35:34,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:35:34,617 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:35:34,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:35:34,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:35:34,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:35:34,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:35:34,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:35:34,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:35:34,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:35:34,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:35:34,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:35:34,880 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:35:34,899 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:35:34,904 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:35:34,905 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:35:34,906 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:35:34,906 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product48.cil.c [2019-10-14 23:35:34,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c683be56/10b06a355f9a44a9b981e16e1ec43b21/FLAG7220e2ad0 [2019-10-14 23:35:35,505 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:35:35,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product48.cil.c [2019-10-14 23:35:35,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c683be56/10b06a355f9a44a9b981e16e1ec43b21/FLAG7220e2ad0 [2019-10-14 23:35:35,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c683be56/10b06a355f9a44a9b981e16e1ec43b21 [2019-10-14 23:35:35,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:35:35,849 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:35:35,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:35:35,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:35:35,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:35:35,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:35:35" (1/1) ... [2019-10-14 23:35:35,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1dcce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:35, skipping insertion in model container [2019-10-14 23:35:35,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:35:35" (1/1) ... [2019-10-14 23:35:35,867 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:35:35,925 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:35:36,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:35:36,363 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:35:36,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:35:36,525 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:35:36,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:36 WrapperNode [2019-10-14 23:35:36,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:35:36,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:35:36,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:35:36,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:35:36,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:36" (1/1) ... [2019-10-14 23:35:36,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:36" (1/1) ... [2019-10-14 23:35:36,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:36" (1/1) ... [2019-10-14 23:35:36,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:36" (1/1) ... [2019-10-14 23:35:36,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:36" (1/1) ... [2019-10-14 23:35:36,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:36" (1/1) ... [2019-10-14 23:35:36,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:36" (1/1) ... [2019-10-14 23:35:36,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:35:36,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:35:36,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:35:36,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:35:36,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:35:36,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:35:36,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:35:36,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:35:36,703 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:35:36,704 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:35:36,704 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:35:36,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:35:36,704 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:35:36,704 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:35:36,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:35:36,705 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:35:36,705 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:35:36,705 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:35:36,705 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:35:36,705 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:35:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:35:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:35:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-14 23:35:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:35:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-14 23:35:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:35:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:35:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:35:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:35:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:35:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:35:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-14 23:35:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-14 23:35:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-14 23:35:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-14 23:35:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:35:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:35:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:35:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:35:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:35:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:35:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:35:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:35:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:35:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:35:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:35:36,710 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:35:36,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:35:36,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:35:36,710 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:35:36,710 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:35:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:35:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:35:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:35:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:35:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:35:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:35:36,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:35:36,712 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:35:36,712 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:35:36,712 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:35:36,712 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:35:36,712 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-14 23:35:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-14 23:35:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:35:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:35:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:35:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:35:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:35:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:35:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:35:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-14 23:35:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:35:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:35:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:35:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-14 23:35:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:35:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-14 23:35:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:35:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-14 23:35:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:35:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:35:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:35:36,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:35:36,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:35:36,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:35:36,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:35:36,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:35:36,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:35:36,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:35:36,717 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:35:36,717 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:35:36,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:35:36,717 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:35:36,717 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:35:36,717 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:35:36,718 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:35:36,718 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:35:36,718 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:35:36,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:35:36,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:35:36,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:35:36,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:35:37,854 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:35:37,855 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:35:37,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:35:37 BoogieIcfgContainer [2019-10-14 23:35:37,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:35:37,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:35:37,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:35:37,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:35:37,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:35:35" (1/3) ... [2019-10-14 23:35:37,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8d2733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:35:37, skipping insertion in model container [2019-10-14 23:35:37,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:36" (2/3) ... [2019-10-14 23:35:37,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8d2733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:35:37, skipping insertion in model container [2019-10-14 23:35:37,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:35:37" (3/3) ... [2019-10-14 23:35:37,867 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product48.cil.c [2019-10-14 23:35:37,878 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:35:37,888 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:35:37,901 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:35:37,939 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:35:37,940 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:35:37,940 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:35:37,940 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:35:37,940 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:35:37,941 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:35:37,941 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:35:37,941 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:35:37,969 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states. [2019-10-14 23:35:37,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-14 23:35:37,978 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:35:37,979 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] [2019-10-14 23:35:37,981 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:35:37,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:35:37,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1956679058, now seen corresponding path program 1 times [2019-10-14 23:35:37,993 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:35:37,994 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014238349] [2019-10-14 23:35:37,994 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:37,994 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:37,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:35:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:38,681 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:35:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:38,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:38,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:35:38,823 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014238349] [2019-10-14 23:35:38,824 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:35:38,824 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:35:38,825 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312309508] [2019-10-14 23:35:38,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:35:38,831 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:35:38,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:35:38,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:35:38,848 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 4 states. [2019-10-14 23:35:40,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:35:40,081 INFO L93 Difference]: Finished difference Result 327 states and 428 transitions. [2019-10-14 23:35:40,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:35:40,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-10-14 23:35:40,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:35:40,098 INFO L225 Difference]: With dead ends: 327 [2019-10-14 23:35:40,098 INFO L226 Difference]: Without dead ends: 183 [2019-10-14 23:35:40,103 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 [2019-10-14 23:35:40,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2019-10-14 23:35:40,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 145. [2019-10-14 23:35:40,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-10-14 23:35:40,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 172 transitions. [2019-10-14 23:35:40,230 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 172 transitions. Word has length 51 [2019-10-14 23:35:40,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:35:40,231 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 172 transitions. [2019-10-14 23:35:40,231 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:35:40,232 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 172 transitions. [2019-10-14 23:35:40,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-14 23:35:40,242 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:35:40,242 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:35:40,242 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:35:40,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:35:40,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1975214799, now seen corresponding path program 1 times [2019-10-14 23:35:40,243 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:35:40,244 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65672304] [2019-10-14 23:35:40,244 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:40,244 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:40,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:35:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:40,599 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:35:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:40,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:35:40,665 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65672304] [2019-10-14 23:35:40,666 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:35:40,666 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:35:40,666 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113980028] [2019-10-14 23:35:40,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:35:40,675 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:35:40,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:35:40,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:35:40,675 INFO L87 Difference]: Start difference. First operand 145 states and 172 transitions. Second operand 5 states. [2019-10-14 23:35:41,207 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:35:42,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:35:42,186 INFO L93 Difference]: Finished difference Result 262 states and 327 transitions. [2019-10-14 23:35:42,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:35:42,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-10-14 23:35:42,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:35:42,190 INFO L225 Difference]: With dead ends: 262 [2019-10-14 23:35:42,190 INFO L226 Difference]: Without dead ends: 173 [2019-10-14 23:35:42,192 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:35:42,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-10-14 23:35:42,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 136. [2019-10-14 23:35:42,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-14 23:35:42,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 160 transitions. [2019-10-14 23:35:42,232 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 160 transitions. Word has length 52 [2019-10-14 23:35:42,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:35:42,232 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 160 transitions. [2019-10-14 23:35:42,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:35:42,233 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 160 transitions. [2019-10-14 23:35:42,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-14 23:35:42,234 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:35:42,235 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:35:42,235 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:35:42,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:35:42,235 INFO L82 PathProgramCache]: Analyzing trace with hash -881076325, now seen corresponding path program 1 times [2019-10-14 23:35:42,235 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:35:42,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376271534] [2019-10-14 23:35:42,236 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:42,236 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:42,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:35:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,570 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:35:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:35:42,668 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376271534] [2019-10-14 23:35:42,668 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:35:42,668 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:35:42,669 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60006080] [2019-10-14 23:35:42,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:35:42,669 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:35:42,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:35:42,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:35:42,670 INFO L87 Difference]: Start difference. First operand 136 states and 160 transitions. Second operand 9 states. [2019-10-14 23:35:43,151 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:35:43,523 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-14 23:35:43,787 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:44,061 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:44,882 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:35:47,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:35:47,063 INFO L93 Difference]: Finished difference Result 464 states and 587 transitions. [2019-10-14 23:35:47,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 23:35:47,063 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-10-14 23:35:47,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:35:47,068 INFO L225 Difference]: With dead ends: 464 [2019-10-14 23:35:47,068 INFO L226 Difference]: Without dead ends: 356 [2019-10-14 23:35:47,070 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:35:47,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-10-14 23:35:47,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 283. [2019-10-14 23:35:47,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2019-10-14 23:35:47,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 346 transitions. [2019-10-14 23:35:47,138 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 346 transitions. Word has length 57 [2019-10-14 23:35:47,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:35:47,138 INFO L462 AbstractCegarLoop]: Abstraction has 283 states and 346 transitions. [2019-10-14 23:35:47,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:35:47,139 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 346 transitions. [2019-10-14 23:35:47,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-14 23:35:47,140 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:35:47,140 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] [2019-10-14 23:35:47,140 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:35:47,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:35:47,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1318351478, now seen corresponding path program 1 times [2019-10-14 23:35:47,141 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:35:47,141 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783218764] [2019-10-14 23:35:47,142 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:47,142 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:47,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:35:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,484 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:35:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:35:47,610 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783218764] [2019-10-14 23:35:47,610 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:35:47,611 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:35:47,611 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940712933] [2019-10-14 23:35:47,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:35:47,612 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:35:47,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:35:47,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:35:47,613 INFO L87 Difference]: Start difference. First operand 283 states and 346 transitions. Second operand 9 states. [2019-10-14 23:35:48,077 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:35:49,166 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:49,560 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:35:49,821 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:50,133 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:51,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:35:51,684 INFO L93 Difference]: Finished difference Result 914 states and 1214 transitions. [2019-10-14 23:35:51,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-14 23:35:51,685 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2019-10-14 23:35:51,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:35:51,691 INFO L225 Difference]: With dead ends: 914 [2019-10-14 23:35:51,691 INFO L226 Difference]: Without dead ends: 659 [2019-10-14 23:35:51,693 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:35:51,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2019-10-14 23:35:51,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 514. [2019-10-14 23:35:51,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2019-10-14 23:35:51,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 632 transitions. [2019-10-14 23:35:51,811 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 632 transitions. Word has length 62 [2019-10-14 23:35:51,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:35:51,812 INFO L462 AbstractCegarLoop]: Abstraction has 514 states and 632 transitions. [2019-10-14 23:35:51,812 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:35:51,812 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 632 transitions. [2019-10-14 23:35:51,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-14 23:35:51,814 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:35:51,815 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:35:51,815 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:35:51,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:35:51,815 INFO L82 PathProgramCache]: Analyzing trace with hash 35250534, now seen corresponding path program 1 times [2019-10-14 23:35:51,816 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:35:51,816 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356472890] [2019-10-14 23:35:51,816 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:51,816 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:51,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:35:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:52,149 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:35:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:52,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:35:52,261 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356472890] [2019-10-14 23:35:52,262 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:35:52,262 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:35:52,262 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740187344] [2019-10-14 23:35:52,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:35:52,264 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:35:52,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:35:52,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:35:52,265 INFO L87 Difference]: Start difference. First operand 514 states and 632 transitions. Second operand 10 states. [2019-10-14 23:35:53,137 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:35:54,256 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:54,571 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:54,847 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:55,571 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:35:56,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:35:56,849 INFO L93 Difference]: Finished difference Result 1457 states and 1990 transitions. [2019-10-14 23:35:56,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-14 23:35:56,859 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2019-10-14 23:35:56,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:35:56,866 INFO L225 Difference]: With dead ends: 1457 [2019-10-14 23:35:56,866 INFO L226 Difference]: Without dead ends: 971 [2019-10-14 23:35:56,868 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2019-10-14 23:35:56,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2019-10-14 23:35:57,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 765. [2019-10-14 23:35:57,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2019-10-14 23:35:57,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 927 transitions. [2019-10-14 23:35:57,041 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 927 transitions. Word has length 66 [2019-10-14 23:35:57,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:35:57,041 INFO L462 AbstractCegarLoop]: Abstraction has 765 states and 927 transitions. [2019-10-14 23:35:57,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:35:57,042 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 927 transitions. [2019-10-14 23:35:57,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-14 23:35:57,045 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:35:57,045 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:35:57,046 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:35:57,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:35:57,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1738725350, now seen corresponding path program 1 times [2019-10-14 23:35:57,046 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:35:57,047 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836157479] [2019-10-14 23:35:57,047 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:57,047 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:57,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:35:57,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,396 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:35:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:57,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:35:57,632 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836157479] [2019-10-14 23:35:57,633 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:35:57,634 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:35:57,634 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488602383] [2019-10-14 23:35:57,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:35:57,634 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:35:57,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:35:57,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:35:57,635 INFO L87 Difference]: Start difference. First operand 765 states and 927 transitions. Second operand 10 states. [2019-10-14 23:35:58,204 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:35:59,314 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:59,612 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-14 23:35:59,909 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:00,201 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:02,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:02,421 INFO L93 Difference]: Finished difference Result 2581 states and 3642 transitions. [2019-10-14 23:36:02,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-14 23:36:02,422 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2019-10-14 23:36:02,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:02,433 INFO L225 Difference]: With dead ends: 2581 [2019-10-14 23:36:02,434 INFO L226 Difference]: Without dead ends: 1844 [2019-10-14 23:36:02,437 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2019-10-14 23:36:02,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2019-10-14 23:36:02,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1391. [2019-10-14 23:36:02,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1391 states. [2019-10-14 23:36:02,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 1682 transitions. [2019-10-14 23:36:02,765 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 1682 transitions. Word has length 104 [2019-10-14 23:36:02,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:02,766 INFO L462 AbstractCegarLoop]: Abstraction has 1391 states and 1682 transitions. [2019-10-14 23:36:02,766 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:36:02,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 1682 transitions. [2019-10-14 23:36:02,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-14 23:36:02,778 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:02,779 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:36:02,779 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:02,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:02,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1498185221, now seen corresponding path program 1 times [2019-10-14 23:36:02,780 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:02,780 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097950389] [2019-10-14 23:36:02,780 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:02,780 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:02,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,142 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:36:03,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097950389] [2019-10-14 23:36:03,313 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:03,313 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:36:03,313 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349125735] [2019-10-14 23:36:03,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:36:03,315 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:03,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:36:03,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:36:03,316 INFO L87 Difference]: Start difference. First operand 1391 states and 1682 transitions. Second operand 10 states. [2019-10-14 23:36:04,702 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:04,980 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-14 23:36:05,317 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:05,580 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:06,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:06,858 INFO L93 Difference]: Finished difference Result 3223 states and 4355 transitions. [2019-10-14 23:36:06,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 23:36:06,859 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2019-10-14 23:36:06,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:06,875 INFO L225 Difference]: With dead ends: 3223 [2019-10-14 23:36:06,875 INFO L226 Difference]: Without dead ends: 1860 [2019-10-14 23:36:06,881 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:36:06,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2019-10-14 23:36:07,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1431. [2019-10-14 23:36:07,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1431 states. [2019-10-14 23:36:07,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1722 transitions. [2019-10-14 23:36:07,171 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1722 transitions. Word has length 104 [2019-10-14 23:36:07,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:07,172 INFO L462 AbstractCegarLoop]: Abstraction has 1431 states and 1722 transitions. [2019-10-14 23:36:07,172 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:36:07,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1722 transitions. [2019-10-14 23:36:07,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-14 23:36:07,176 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:07,176 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:36:07,176 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:07,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:07,177 INFO L82 PathProgramCache]: Analyzing trace with hash 430087481, now seen corresponding path program 1 times [2019-10-14 23:36:07,177 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:07,177 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151410045] [2019-10-14 23:36:07,177 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:07,177 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:07,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,545 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:07,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:36:07,707 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151410045] [2019-10-14 23:36:07,708 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:07,708 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:36:07,708 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260427770] [2019-10-14 23:36:07,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:36:07,709 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:07,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:36:07,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:36:07,709 INFO L87 Difference]: Start difference. First operand 1431 states and 1722 transitions. Second operand 12 states. [2019-10-14 23:36:08,392 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:08,647 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:08,894 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:09,829 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:10,112 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:10,363 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:11,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:11,895 INFO L93 Difference]: Finished difference Result 2835 states and 3722 transitions. [2019-10-14 23:36:11,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:36:11,896 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 104 [2019-10-14 23:36:11,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:11,906 INFO L225 Difference]: With dead ends: 2835 [2019-10-14 23:36:11,906 INFO L226 Difference]: Without dead ends: 1432 [2019-10-14 23:36:11,910 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2019-10-14 23:36:11,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2019-10-14 23:36:12,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1143. [2019-10-14 23:36:12,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1143 states. [2019-10-14 23:36:12,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1346 transitions. [2019-10-14 23:36:12,178 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1346 transitions. Word has length 104 [2019-10-14 23:36:12,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:12,178 INFO L462 AbstractCegarLoop]: Abstraction has 1143 states and 1346 transitions. [2019-10-14 23:36:12,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:36:12,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1346 transitions. [2019-10-14 23:36:12,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-14 23:36:12,184 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:12,185 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:36:12,185 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:12,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:12,185 INFO L82 PathProgramCache]: Analyzing trace with hash 832876050, now seen corresponding path program 1 times [2019-10-14 23:36:12,187 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:12,187 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008226991] [2019-10-14 23:36:12,187 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:12,187 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:12,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,499 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,804 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:36:12,806 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008226991] [2019-10-14 23:36:12,806 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729614637] [2019-10-14 23:36:12,807 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 [2019-10-14 23:36:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:12,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-14 23:36:13,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:36:13,309 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:13,310 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:36:13,310 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 23 [2019-10-14 23:36:13,310 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316523051] [2019-10-14 23:36:13,311 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:36:13,311 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:13,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:36:13,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2019-10-14 23:36:13,312 INFO L87 Difference]: Start difference. First operand 1143 states and 1346 transitions. Second operand 8 states.