/usr/bin/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_spec5_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:08:01,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:08:01,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:08:01,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:08:01,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:08:01,609 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:08:01,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:08:01,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:08:01,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:08:01,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:08:01,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:08:01,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:08:01,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:08:01,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:08:01,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:08:01,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:08:01,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:08:01,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:08:01,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:08:01,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:08:01,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:08:01,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:08:01,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:08:01,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:08:01,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:08:01,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:08:01,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:08:01,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:08:01,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:08:01,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:08:01,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:08:01,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:08:01,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:08:01,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:08:01,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:08:01,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:08:01,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:08:01,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:08:01,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:08:01,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:08:01,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:08:01,676 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 [2019-11-06 22:08:01,695 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:08:01,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:08:01,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:08:01,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:08:01,699 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:08:01,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:08:01,700 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:08:01,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:08:01,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:08:01,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:08:01,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:08:01,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:08:01,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:08:01,702 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:08:01,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:08:01,703 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:08:01,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:08:01,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:08:01,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:08:01,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:08:01,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:08:01,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:08:01,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:08:01,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:08:01,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:08:01,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:08:01,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:08:01,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:08:01,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 22:08:01,967 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:08:01,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:08:01,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:08:01,991 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:08:01,991 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:08:01,992 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2019-11-06 22:08:02,070 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/412b2832a/8b60091dd5934846b7df6388c7c0ebe8/FLAG8216ace6a [2019-11-06 22:08:02,602 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:08:02,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2019-11-06 22:08:02,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/412b2832a/8b60091dd5934846b7df6388c7c0ebe8/FLAG8216ace6a [2019-11-06 22:08:02,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/412b2832a/8b60091dd5934846b7df6388c7c0ebe8 [2019-11-06 22:08:02,869 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:08:02,871 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:08:02,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:08:02,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:08:02,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:08:02,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:02" (1/1) ... [2019-11-06 22:08:02,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e07d602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:02, skipping insertion in model container [2019-11-06 22:08:02,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:02" (1/1) ... [2019-11-06 22:08:02,887 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:08:02,944 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:08:03,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:08:03,386 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:08:03,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:08:03,597 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:08:03,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:03 WrapperNode [2019-11-06 22:08:03,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:08:03,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:08:03,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:08:03,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:08:03,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:03" (1/1) ... [2019-11-06 22:08:03,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:03" (1/1) ... [2019-11-06 22:08:03,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:03" (1/1) ... [2019-11-06 22:08:03,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:03" (1/1) ... [2019-11-06 22:08:03,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:03" (1/1) ... [2019-11-06 22:08:03,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:03" (1/1) ... [2019-11-06 22:08:03,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:03" (1/1) ... [2019-11-06 22:08:03,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:08:03,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:08:03,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:08:03,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:08:03,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:03" (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 [2019-11-06 22:08:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:08:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:08:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 22:08:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 22:08:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 22:08:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 22:08:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 22:08:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 22:08:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 22:08:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 22:08:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 22:08:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 22:08:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 22:08:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:08:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 22:08:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 22:08:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 22:08:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 22:08:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 22:08:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 22:08:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-06 22:08:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-06 22:08:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-06 22:08:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-06 22:08:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-06 22:08:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-06 22:08:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-06 22:08:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-06 22:08:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 22:08:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-06 22:08:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:08:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-11-06 22:08:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-06 22:08:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-06 22:08:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-06 22:08:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-06 22:08:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-06 22:08:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-06 22:08:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-06 22:08:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-06 22:08:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-11-06 22:08:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:08:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:08:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:08:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:08:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:08:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 22:08:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 22:08:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 22:08:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 22:08:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 22:08:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 22:08:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 22:08:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:08:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 22:08:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 22:08:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:08:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 22:08:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 22:08:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:08:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 22:08:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 22:08:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:08:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 22:08:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 22:08:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 22:08:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-06 22:08:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-06 22:08:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-06 22:08:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 22:08:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 22:08:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:08:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 22:08:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 22:08:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 22:08:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 22:08:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 22:08:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:08:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 22:08:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 22:08:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-11-06 22:08:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-06 22:08:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-06 22:08:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-06 22:08:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-06 22:08:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-06 22:08:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-06 22:08:03,784 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-06 22:08:03,784 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-06 22:08:03,784 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-06 22:08:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:08:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:08:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-06 22:08:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-06 22:08:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-06 22:08:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:08:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-06 22:08:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-11-06 22:08:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-06 22:08:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:08:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 22:08:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:08:04,850 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:08:04,851 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 22:08:04,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:04 BoogieIcfgContainer [2019-11-06 22:08:04,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:08:04,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:08:04,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:08:04,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:08:04,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:08:02" (1/3) ... [2019-11-06 22:08:04,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a71c45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:04, skipping insertion in model container [2019-11-06 22:08:04,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:03" (2/3) ... [2019-11-06 22:08:04,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a71c45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:04, skipping insertion in model container [2019-11-06 22:08:04,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:04" (3/3) ... [2019-11-06 22:08:04,861 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2019-11-06 22:08:04,870 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:08:04,880 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:08:04,891 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:08:04,925 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:08:04,926 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:08:04,926 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:08:04,927 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:08:04,927 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:08:04,927 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:08:04,928 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:08:04,928 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:08:04,954 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states. [2019-11-06 22:08:04,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-06 22:08:04,963 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:04,964 INFO L410 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] [2019-11-06 22:08:04,966 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:04,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:04,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1039510468, now seen corresponding path program 1 times [2019-11-06 22:08:04,981 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:04,982 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939251727] [2019-11-06 22:08:04,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:05,657 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:05,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:05,755 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939251727] [2019-11-06 22:08:05,757 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:05,757 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:08:05,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537753280] [2019-11-06 22:08:05,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:08:05,765 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:05,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:08:05,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:08:05,784 INFO L87 Difference]: Start difference. First operand 205 states. Second operand 4 states. [2019-11-06 22:08:07,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:07,059 INFO L93 Difference]: Finished difference Result 356 states and 457 transitions. [2019-11-06 22:08:07,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:08:07,060 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-11-06 22:08:07,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:07,077 INFO L225 Difference]: With dead ends: 356 [2019-11-06 22:08:07,077 INFO L226 Difference]: Without dead ends: 195 [2019-11-06 22:08:07,082 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:08:07,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-11-06 22:08:07,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 162. [2019-11-06 22:08:07,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-06 22:08:07,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 192 transitions. [2019-11-06 22:08:07,182 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 192 transitions. Word has length 59 [2019-11-06 22:08:07,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:07,182 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 192 transitions. [2019-11-06 22:08:07,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:08:07,183 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 192 transitions. [2019-11-06 22:08:07,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-11-06 22:08:07,187 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:07,187 INFO L410 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] [2019-11-06 22:08:07,187 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:07,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:07,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1700142027, now seen corresponding path program 1 times [2019-11-06 22:08:07,188 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:07,188 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155929401] [2019-11-06 22:08:07,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,580 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:07,668 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155929401] [2019-11-06 22:08:07,669 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:07,669 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 22:08:07,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776223765] [2019-11-06 22:08:07,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 22:08:07,671 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:07,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 22:08:07,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:08:07,672 INFO L87 Difference]: Start difference. First operand 162 states and 192 transitions. Second operand 5 states. [2019-11-06 22:08:08,251 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:09,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:09,407 INFO L93 Difference]: Finished difference Result 295 states and 361 transitions. [2019-11-06 22:08:09,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 22:08:09,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-11-06 22:08:09,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:09,411 INFO L225 Difference]: With dead ends: 295 [2019-11-06 22:08:09,411 INFO L226 Difference]: Without dead ends: 185 [2019-11-06 22:08:09,413 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:08:09,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2019-11-06 22:08:09,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 153. [2019-11-06 22:08:09,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-06 22:08:09,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 180 transitions. [2019-11-06 22:08:09,456 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 180 transitions. Word has length 60 [2019-11-06 22:08:09,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:09,456 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 180 transitions. [2019-11-06 22:08:09,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 22:08:09,456 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 180 transitions. [2019-11-06 22:08:09,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-11-06 22:08:09,458 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:09,459 INFO L410 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] [2019-11-06 22:08:09,459 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:09,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:09,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1740397712, now seen corresponding path program 1 times [2019-11-06 22:08:09,460 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:09,460 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965286647] [2019-11-06 22:08:09,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:09,880 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:10,045 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965286647] [2019-11-06 22:08:10,045 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:10,046 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:08:10,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440289891] [2019-11-06 22:08:10,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:08:10,048 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:10,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:08:10,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:08:10,049 INFO L87 Difference]: Start difference. First operand 153 states and 180 transitions. Second operand 9 states. [2019-11-06 22:08:10,596 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:10,974 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-11-06 22:08:11,262 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:11,575 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:12,650 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:15,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:15,012 INFO L93 Difference]: Finished difference Result 508 states and 630 transitions. [2019-11-06 22:08:15,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-06 22:08:15,013 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2019-11-06 22:08:15,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:15,018 INFO L225 Difference]: With dead ends: 508 [2019-11-06 22:08:15,019 INFO L226 Difference]: Without dead ends: 383 [2019-11-06 22:08:15,020 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-11-06 22:08:15,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2019-11-06 22:08:15,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 326. [2019-11-06 22:08:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-11-06 22:08:15,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 396 transitions. [2019-11-06 22:08:15,101 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 396 transitions. Word has length 64 [2019-11-06 22:08:15,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:15,102 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 396 transitions. [2019-11-06 22:08:15,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:08:15,102 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 396 transitions. [2019-11-06 22:08:15,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-11-06 22:08:15,104 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:15,104 INFO L410 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] [2019-11-06 22:08:15,105 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:15,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:15,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1889366184, now seen corresponding path program 1 times [2019-11-06 22:08:15,105 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:15,106 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356981234] [2019-11-06 22:08:15,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,423 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:08:15,530 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356981234] [2019-11-06 22:08:15,531 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:15,531 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:08:15,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567983436] [2019-11-06 22:08:15,532 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:08:15,532 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:15,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:08:15,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:08:15,532 INFO L87 Difference]: Start difference. First operand 326 states and 396 transitions. Second operand 9 states. [2019-11-06 22:08:15,990 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:16,773 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:17,800 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:18,144 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:18,471 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:18,755 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:19,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:19,726 INFO L93 Difference]: Finished difference Result 827 states and 1076 transitions. [2019-11-06 22:08:19,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-06 22:08:19,727 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2019-11-06 22:08:19,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:19,733 INFO L225 Difference]: With dead ends: 827 [2019-11-06 22:08:19,733 INFO L226 Difference]: Without dead ends: 529 [2019-11-06 22:08:19,734 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-11-06 22:08:19,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2019-11-06 22:08:19,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 465. [2019-11-06 22:08:19,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2019-11-06 22:08:19,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 561 transitions. [2019-11-06 22:08:19,836 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 561 transitions. Word has length 70 [2019-11-06 22:08:19,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:19,837 INFO L462 AbstractCegarLoop]: Abstraction has 465 states and 561 transitions. [2019-11-06 22:08:19,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:08:19,837 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 561 transitions. [2019-11-06 22:08:19,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-11-06 22:08:19,839 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:19,840 INFO L410 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] [2019-11-06 22:08:19,840 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:19,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:19,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1315837753, now seen corresponding path program 1 times [2019-11-06 22:08:19,841 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:19,841 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947825032] [2019-11-06 22:08:19,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,102 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:20,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:20,226 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947825032] [2019-11-06 22:08:20,226 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:20,226 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:08:20,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358351366] [2019-11-06 22:08:20,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:08:20,227 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:20,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:08:20,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:08:20,228 INFO L87 Difference]: Start difference. First operand 465 states and 561 transitions. Second operand 9 states. [2019-11-06 22:08:21,444 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:21,717 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-11-06 22:08:21,983 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:22,247 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:23,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:23,215 INFO L93 Difference]: Finished difference Result 988 states and 1255 transitions. [2019-11-06 22:08:23,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 22:08:23,218 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2019-11-06 22:08:23,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:23,224 INFO L225 Difference]: With dead ends: 988 [2019-11-06 22:08:23,224 INFO L226 Difference]: Without dead ends: 551 [2019-11-06 22:08:23,226 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:08:23,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-11-06 22:08:23,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 478. [2019-11-06 22:08:23,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-11-06 22:08:23,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 575 transitions. [2019-11-06 22:08:23,357 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 575 transitions. Word has length 97 [2019-11-06 22:08:23,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:23,358 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 575 transitions. [2019-11-06 22:08:23,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:08:23,358 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 575 transitions. [2019-11-06 22:08:23,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-11-06 22:08:23,365 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:23,366 INFO L410 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] [2019-11-06 22:08:23,366 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:23,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:23,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1243451195, now seen corresponding path program 1 times [2019-11-06 22:08:23,370 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:23,370 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985336081] [2019-11-06 22:08:23,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,677 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:23,815 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985336081] [2019-11-06 22:08:23,816 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:23,816 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-06 22:08:23,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142615573] [2019-11-06 22:08:23,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 22:08:23,817 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:23,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 22:08:23,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-06 22:08:23,817 INFO L87 Difference]: Start difference. First operand 478 states and 575 transitions. Second operand 11 states. [2019-11-06 22:08:24,355 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:24,639 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:24,899 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:25,865 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:26,159 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:26,462 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:27,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:27,495 INFO L93 Difference]: Finished difference Result 1015 states and 1308 transitions. [2019-11-06 22:08:27,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-06 22:08:27,496 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2019-11-06 22:08:27,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:27,501 INFO L225 Difference]: With dead ends: 1015 [2019-11-06 22:08:27,501 INFO L226 Difference]: Without dead ends: 565 [2019-11-06 22:08:27,503 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-11-06 22:08:27,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2019-11-06 22:08:27,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 486. [2019-11-06 22:08:27,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 486 states. [2019-11-06 22:08:27,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 583 transitions. [2019-11-06 22:08:27,582 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 583 transitions. Word has length 97 [2019-11-06 22:08:27,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:27,583 INFO L462 AbstractCegarLoop]: Abstraction has 486 states and 583 transitions. [2019-11-06 22:08:27,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 22:08:27,583 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 583 transitions. [2019-11-06 22:08:27,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-11-06 22:08:27,585 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:27,585 INFO L410 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] [2019-11-06 22:08:27,585 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:27,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:27,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1573216956, now seen corresponding path program 1 times [2019-11-06 22:08:27,586 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:27,586 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498875065] [2019-11-06 22:08:27,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,852 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:28,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:28,008 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498875065] [2019-11-06 22:08:28,008 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:28,009 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 22:08:28,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235989844] [2019-11-06 22:08:28,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 22:08:28,010 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:28,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 22:08:28,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:08:28,011 INFO L87 Difference]: Start difference. First operand 486 states and 583 transitions. Second operand 7 states. [2019-11-06 22:08:28,437 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:29,046 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:31,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:31,703 INFO L93 Difference]: Finished difference Result 1503 states and 1948 transitions. [2019-11-06 22:08:31,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 22:08:31,704 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 97 [2019-11-06 22:08:31,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:31,711 INFO L225 Difference]: With dead ends: 1503 [2019-11-06 22:08:31,712 INFO L226 Difference]: Without dead ends: 1045 [2019-11-06 22:08:31,714 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-11-06 22:08:31,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-11-06 22:08:31,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 971. [2019-11-06 22:08:31,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 971 states. [2019-11-06 22:08:31,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1183 transitions. [2019-11-06 22:08:31,881 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1183 transitions. Word has length 97 [2019-11-06 22:08:31,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:31,881 INFO L462 AbstractCegarLoop]: Abstraction has 971 states and 1183 transitions. [2019-11-06 22:08:31,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 22:08:31,882 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1183 transitions. [2019-11-06 22:08:31,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-11-06 22:08:31,886 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:31,886 INFO L410 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] [2019-11-06 22:08:31,886 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:31,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:31,887 INFO L82 PathProgramCache]: Analyzing trace with hash 164101122, now seen corresponding path program 1 times [2019-11-06 22:08:31,887 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:31,888 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453594601] [2019-11-06 22:08:31,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,286 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:32,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:32,460 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453594601] [2019-11-06 22:08:32,460 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:32,460 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-06 22:08:32,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282094644] [2019-11-06 22:08:32,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-06 22:08:32,461 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:32,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-06 22:08:32,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:08:32,462 INFO L87 Difference]: Start difference. First operand 971 states and 1183 transitions. Second operand 12 states. [2019-11-06 22:08:33,015 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:33,796 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:34,561 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:34,911 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:35,211 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-11-06 22:08:35,535 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:35,860 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:38,170 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:38,553 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:39,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:39,227 INFO L93 Difference]: Finished difference Result 2749 states and 3568 transitions. [2019-11-06 22:08:39,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-11-06 22:08:39,228 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 101 [2019-11-06 22:08:39,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:39,242 INFO L225 Difference]: With dead ends: 2749 [2019-11-06 22:08:39,243 INFO L226 Difference]: Without dead ends: 2004 [2019-11-06 22:08:39,247 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-11-06 22:08:39,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2019-11-06 22:08:39,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1704. [2019-11-06 22:08:39,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1704 states. [2019-11-06 22:08:39,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 2058 transitions. [2019-11-06 22:08:39,687 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 2058 transitions. Word has length 101 [2019-11-06 22:08:39,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:39,690 INFO L462 AbstractCegarLoop]: Abstraction has 1704 states and 2058 transitions. [2019-11-06 22:08:39,691 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-06 22:08:39,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 2058 transitions. [2019-11-06 22:08:39,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-11-06 22:08:39,697 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:39,698 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:08:39,699 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:39,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:39,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1947078735, now seen corresponding path program 1 times [2019-11-06 22:08:39,699 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:39,700 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316588016] [2019-11-06 22:08:39,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,052 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,340 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-06 22:08:40,344 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316588016] [2019-11-06 22:08:40,344 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094370604] [2019-11-06 22:08:40,344 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 [2019-11-06 22:08:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:40,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-06 22:08:40,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:08:40,839 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 29 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:08:40,839 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 22:08:40,840 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-11-06 22:08:40,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729703929] [2019-11-06 22:08:40,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-06 22:08:40,841 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:40,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-06 22:08:40,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2019-11-06 22:08:40,843 INFO L87 Difference]: Start difference. First operand 1704 states and 2058 transitions. Second operand 20 states.