java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:36:57,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:36:57,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:36:57,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:36:57,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:36:57,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:36:57,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:36:57,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:36:57,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:36:57,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:36:57,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:36:57,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:36:57,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:36:57,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:36:57,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:36:57,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:36:57,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:36:57,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:36:57,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:36:57,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:36:57,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:36:57,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:36:57,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:36:57,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:36:57,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:36:57,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:36:57,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:36:57,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:36:57,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:36:57,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:36:57,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:36:57,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:36:57,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:36:57,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:36:57,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:36:57,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:36:57,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:36:57,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:36:57,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:36:57,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:36:57,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:36:57,807 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:36:57,832 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:36:57,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:36:57,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:36:57,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:36:57,836 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:36:57,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:36:57,837 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:36:57,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:36:57,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:36:57,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:36:57,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:36:57,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:36:57,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:36:57,838 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:36:57,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:36:57,838 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:36:57,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:36:57,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:36:57,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:36:57,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:36:57,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:36:57,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:36:57,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:36:57,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:36:57,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:36:57,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:36:57,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:36:57,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:36:57,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:36:58,135 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:36:58,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:36:58,160 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:36:58,161 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:36:58,161 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:36:58,162 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c [2019-10-14 23:36:58,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f590d82c3/12a15994632a4750979121b72bcb516b/FLAG3c4537c76 [2019-10-14 23:36:58,721 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:36:58,722 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c [2019-10-14 23:36:58,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f590d82c3/12a15994632a4750979121b72bcb516b/FLAG3c4537c76 [2019-10-14 23:36:59,035 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f590d82c3/12a15994632a4750979121b72bcb516b [2019-10-14 23:36:59,044 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:36:59,045 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:36:59,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:36:59,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:36:59,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:36:59,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:36:59" (1/1) ... [2019-10-14 23:36:59,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7384ae86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:59, skipping insertion in model container [2019-10-14 23:36:59,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:36:59" (1/1) ... [2019-10-14 23:36:59,060 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:36:59,126 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:36:59,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:36:59,556 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:36:59,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:36:59,708 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:36:59,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:59 WrapperNode [2019-10-14 23:36:59,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:36:59,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:36:59,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:36:59,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:36:59,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:59" (1/1) ... [2019-10-14 23:36:59,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:59" (1/1) ... [2019-10-14 23:36:59,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:59" (1/1) ... [2019-10-14 23:36:59,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:59" (1/1) ... [2019-10-14 23:36:59,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:59" (1/1) ... [2019-10-14 23:36:59,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:59" (1/1) ... [2019-10-14 23:36:59,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:59" (1/1) ... [2019-10-14 23:36:59,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:36:59,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:36:59,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:36:59,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:36:59,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:36:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:36:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:36:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:36:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:36:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:36:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:36:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:36:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:36:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:36:59,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:36:59,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-14 23:36:59,868 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:36:59,869 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:36:59,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:36:59,870 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:36:59,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:36:59,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:36:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-14 23:36:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:36:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:36:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:36:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:36:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:36:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:36:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:36:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:36:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:36:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:36:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:36:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:36:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:36:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:36:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-14 23:36:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:36:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:36:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:36:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:36:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:36:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:36:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:36:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-14 23:36:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-14 23:36:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:36:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:36:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:36:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:36:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:36:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:36:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:36:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:36:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:36:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:36:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-14 23:36:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:36:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:36:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:36:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:36:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:36:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:36:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:36:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:36:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:36:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:36:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:36:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:36:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:36:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:36:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-14 23:36:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:36:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:36:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:36:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:36:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:36:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:36:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:36:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:36:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:36:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:36:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:36:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:36:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:36:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:36:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:36:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:36:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:36:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-14 23:36:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:36:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:36:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:36:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:36:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:36:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:36:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-14 23:36:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-14 23:36:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:36:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:36:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:36:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:37:00,947 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:37:00,948 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:37:00,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:37:00 BoogieIcfgContainer [2019-10-14 23:37:00,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:37:00,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:37:00,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:37:00,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:37:00,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:36:59" (1/3) ... [2019-10-14 23:37:00,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b410ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:37:00, skipping insertion in model container [2019-10-14 23:37:00,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:59" (2/3) ... [2019-10-14 23:37:00,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b410ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:37:00, skipping insertion in model container [2019-10-14 23:37:00,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:37:00" (3/3) ... [2019-10-14 23:37:00,959 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product54.cil.c [2019-10-14 23:37:00,969 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:37:00,978 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:37:00,989 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:37:01,020 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:37:01,021 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:37:01,021 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:37:01,021 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:37:01,021 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:37:01,021 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:37:01,022 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:37:01,022 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:37:01,044 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2019-10-14 23:37:01,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-14 23:37:01,055 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:01,056 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 23:37:01,058 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:01,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:01,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1727770094, now seen corresponding path program 1 times [2019-10-14 23:37:01,073 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:01,073 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444485004] [2019-10-14 23:37:01,074 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:01,074 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:01,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,737 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,831 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 23:37:01,832 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444485004] [2019-10-14 23:37:01,833 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:01,833 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:37:01,834 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708813454] [2019-10-14 23:37:01,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:37:01,841 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:01,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:37:01,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:37:01,859 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 3 states. [2019-10-14 23:37:03,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:03,125 INFO L93 Difference]: Finished difference Result 350 states and 455 transitions. [2019-10-14 23:37:03,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:37:03,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-14 23:37:03,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:03,142 INFO L225 Difference]: With dead ends: 350 [2019-10-14 23:37:03,142 INFO L226 Difference]: Without dead ends: 188 [2019-10-14 23:37:03,147 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:37:03,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2019-10-14 23:37:03,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 153. [2019-10-14 23:37:03,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-10-14 23:37:03,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 181 transitions. [2019-10-14 23:37:03,261 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 181 transitions. Word has length 52 [2019-10-14 23:37:03,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:03,261 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 181 transitions. [2019-10-14 23:37:03,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:37:03,262 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 181 transitions. [2019-10-14 23:37:03,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-14 23:37:03,266 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:03,266 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:37:03,266 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:03,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:03,267 INFO L82 PathProgramCache]: Analyzing trace with hash -23295260, now seen corresponding path program 1 times [2019-10-14 23:37:03,267 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:03,267 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946243117] [2019-10-14 23:37:03,267 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:03,267 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:03,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,610 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,681 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 23:37:03,682 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946243117] [2019-10-14 23:37:03,686 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:03,687 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:37:03,687 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122712412] [2019-10-14 23:37:03,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:37:03,689 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:03,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:37:03,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:37:03,693 INFO L87 Difference]: Start difference. First operand 153 states and 181 transitions. Second operand 4 states. [2019-10-14 23:37:04,129 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:05,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:05,078 INFO L93 Difference]: Finished difference Result 279 states and 342 transitions. [2019-10-14 23:37:05,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:37:05,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2019-10-14 23:37:05,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:05,086 INFO L225 Difference]: With dead ends: 279 [2019-10-14 23:37:05,087 INFO L226 Difference]: Without dead ends: 172 [2019-10-14 23:37:05,088 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:37:05,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2019-10-14 23:37:05,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 144. [2019-10-14 23:37:05,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-14 23:37:05,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 169 transitions. [2019-10-14 23:37:05,130 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 169 transitions. Word has length 53 [2019-10-14 23:37:05,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:05,131 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 169 transitions. [2019-10-14 23:37:05,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:37:05,131 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 169 transitions. [2019-10-14 23:37:05,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-14 23:37:05,133 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:05,134 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:37:05,134 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:05,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:05,134 INFO L82 PathProgramCache]: Analyzing trace with hash 646991369, now seen corresponding path program 1 times [2019-10-14 23:37:05,135 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:05,135 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759525798] [2019-10-14 23:37:05,135 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:05,135 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:05,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:05,488 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:05,560 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 23:37:05,560 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759525798] [2019-10-14 23:37:05,560 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:05,560 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:37:05,561 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433499426] [2019-10-14 23:37:05,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:37:05,561 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:05,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:37:05,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:37:05,562 INFO L87 Difference]: Start difference. First operand 144 states and 169 transitions. Second operand 8 states. [2019-10-14 23:37:05,962 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:06,302 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:06,567 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:06,812 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:08,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:08,304 INFO L93 Difference]: Finished difference Result 292 states and 360 transitions. [2019-10-14 23:37:08,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:37:08,306 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2019-10-14 23:37:08,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:08,309 INFO L225 Difference]: With dead ends: 292 [2019-10-14 23:37:08,309 INFO L226 Difference]: Without dead ends: 172 [2019-10-14 23:37:08,311 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:37:08,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2019-10-14 23:37:08,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 144. [2019-10-14 23:37:08,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-14 23:37:08,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2019-10-14 23:37:08,349 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 58 [2019-10-14 23:37:08,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:08,350 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2019-10-14 23:37:08,350 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:37:08,350 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2019-10-14 23:37:08,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-14 23:37:08,353 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:08,353 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:37:08,353 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:08,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:08,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1077665999, now seen corresponding path program 1 times [2019-10-14 23:37:08,354 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:08,354 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955521104] [2019-10-14 23:37:08,354 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:08,355 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:08,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:08,615 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:08,700 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 23:37:08,700 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955521104] [2019-10-14 23:37:08,700 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:08,700 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:37:08,701 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269498433] [2019-10-14 23:37:08,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:37:08,701 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:08,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:37:08,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:37:08,702 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 6 states. [2019-10-14 23:37:09,094 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:10,391 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:11,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:11,273 INFO L93 Difference]: Finished difference Result 407 states and 503 transitions. [2019-10-14 23:37:11,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:37:11,273 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2019-10-14 23:37:11,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:11,281 INFO L225 Difference]: With dead ends: 407 [2019-10-14 23:37:11,281 INFO L226 Difference]: Without dead ends: 287 [2019-10-14 23:37:11,282 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:37:11,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2019-10-14 23:37:11,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 244. [2019-10-14 23:37:11,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2019-10-14 23:37:11,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 277 transitions. [2019-10-14 23:37:11,339 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 277 transitions. Word has length 76 [2019-10-14 23:37:11,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:11,339 INFO L462 AbstractCegarLoop]: Abstraction has 244 states and 277 transitions. [2019-10-14 23:37:11,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:37:11,340 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 277 transitions. [2019-10-14 23:37:11,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-10-14 23:37:11,342 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:11,342 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:37:11,342 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:11,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:11,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1489636928, now seen corresponding path program 1 times [2019-10-14 23:37:11,343 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:11,343 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111311585] [2019-10-14 23:37:11,343 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:11,343 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:11,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:11,691 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:11,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:37:11,812 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111311585] [2019-10-14 23:37:11,813 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:11,813 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:37:11,813 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133191502] [2019-10-14 23:37:11,815 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:37:11,816 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:11,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:37:11,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:37:11,817 INFO L87 Difference]: Start difference. First operand 244 states and 277 transitions. Second operand 8 states. [2019-10-14 23:37:12,427 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:13,849 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:14,209 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:14,471 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:14,723 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:15,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:15,662 INFO L93 Difference]: Finished difference Result 641 states and 791 transitions. [2019-10-14 23:37:15,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:37:15,662 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 90 [2019-10-14 23:37:15,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:15,665 INFO L225 Difference]: With dead ends: 641 [2019-10-14 23:37:15,666 INFO L226 Difference]: Without dead ends: 421 [2019-10-14 23:37:15,667 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:37:15,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2019-10-14 23:37:15,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 378. [2019-10-14 23:37:15,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2019-10-14 23:37:15,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 436 transitions. [2019-10-14 23:37:15,753 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 436 transitions. Word has length 90 [2019-10-14 23:37:15,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:15,754 INFO L462 AbstractCegarLoop]: Abstraction has 378 states and 436 transitions. [2019-10-14 23:37:15,754 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:37:15,754 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 436 transitions. [2019-10-14 23:37:15,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-14 23:37:15,756 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:15,756 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:37:15,757 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:15,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:15,757 INFO L82 PathProgramCache]: Analyzing trace with hash -467189990, now seen corresponding path program 1 times [2019-10-14 23:37:15,757 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:15,757 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307781545] [2019-10-14 23:37:15,758 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:15,758 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:15,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,039 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:16,158 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 23:37:16,159 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307781545] [2019-10-14 23:37:16,160 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:16,160 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:37:16,160 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137265833] [2019-10-14 23:37:16,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:37:16,161 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:16,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:37:16,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:37:16,162 INFO L87 Difference]: Start difference. First operand 378 states and 436 transitions. Second operand 10 states. [2019-10-14 23:37:16,974 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:18,494 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:18,804 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:37:19,064 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:37:19,313 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:19,698 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:21,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:21,199 INFO L93 Difference]: Finished difference Result 875 states and 1097 transitions. [2019-10-14 23:37:21,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:37:21,199 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 94 [2019-10-14 23:37:21,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:21,205 INFO L225 Difference]: With dead ends: 875 [2019-10-14 23:37:21,205 INFO L226 Difference]: Without dead ends: 644 [2019-10-14 23:37:21,206 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:37:21,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2019-10-14 23:37:21,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 572. [2019-10-14 23:37:21,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2019-10-14 23:37:21,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 671 transitions. [2019-10-14 23:37:21,350 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 671 transitions. Word has length 94 [2019-10-14 23:37:21,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:21,352 INFO L462 AbstractCegarLoop]: Abstraction has 572 states and 671 transitions. [2019-10-14 23:37:21,353 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:37:21,353 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 671 transitions. [2019-10-14 23:37:21,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-14 23:37:21,356 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:21,357 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:37:21,357 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:21,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:21,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1892117019, now seen corresponding path program 1 times [2019-10-14 23:37:21,358 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:21,358 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491266644] [2019-10-14 23:37:21,358 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:21,358 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:21,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,597 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:21,705 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 23:37:21,705 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491266644] [2019-10-14 23:37:21,705 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:21,705 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:37:21,705 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988295604] [2019-10-14 23:37:21,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:37:21,706 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:21,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:37:21,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:37:21,707 INFO L87 Difference]: Start difference. First operand 572 states and 671 transitions. Second operand 8 states. [2019-10-14 23:37:22,588 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:22,829 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:23,088 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:24,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:24,320 INFO L93 Difference]: Finished difference Result 1061 states and 1294 transitions. [2019-10-14 23:37:24,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:37:24,320 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2019-10-14 23:37:24,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:24,326 INFO L225 Difference]: With dead ends: 1061 [2019-10-14 23:37:24,326 INFO L226 Difference]: Without dead ends: 632 [2019-10-14 23:37:24,328 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:37:24,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2019-10-14 23:37:24,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 572. [2019-10-14 23:37:24,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2019-10-14 23:37:24,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 670 transitions. [2019-10-14 23:37:24,462 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 670 transitions. Word has length 94 [2019-10-14 23:37:24,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:24,462 INFO L462 AbstractCegarLoop]: Abstraction has 572 states and 670 transitions. [2019-10-14 23:37:24,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:37:24,462 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 670 transitions. [2019-10-14 23:37:24,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-14 23:37:24,464 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:24,464 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:37:24,464 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:24,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:24,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1743318755, now seen corresponding path program 1 times [2019-10-14 23:37:24,465 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:24,465 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714792077] [2019-10-14 23:37:24,465 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:24,466 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:24,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:24,739 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:25,051 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 23:37:25,052 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714792077] [2019-10-14 23:37:25,052 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:25,053 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:37:25,054 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111488580] [2019-10-14 23:37:25,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:37:25,059 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:25,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:37:25,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:37:25,060 INFO L87 Difference]: Start difference. First operand 572 states and 670 transitions. Second operand 12 states. [2019-10-14 23:37:25,779 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:26,034 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:26,294 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:27,076 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:27,337 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:37:27,615 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:27,873 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:29,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:29,347 INFO L93 Difference]: Finished difference Result 1167 states and 1426 transitions. [2019-10-14 23:37:29,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-14 23:37:29,347 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2019-10-14 23:37:29,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:29,353 INFO L225 Difference]: With dead ends: 1167 [2019-10-14 23:37:29,353 INFO L226 Difference]: Without dead ends: 619 [2019-10-14 23:37:29,355 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2019-10-14 23:37:29,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-14 23:37:29,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 570. [2019-10-14 23:37:29,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2019-10-14 23:37:29,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 666 transitions. [2019-10-14 23:37:29,452 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 666 transitions. Word has length 94 [2019-10-14 23:37:29,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:29,452 INFO L462 AbstractCegarLoop]: Abstraction has 570 states and 666 transitions. [2019-10-14 23:37:29,453 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:37:29,453 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 666 transitions. [2019-10-14 23:37:29,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-14 23:37:29,456 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:29,456 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:37:29,456 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:29,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:29,457 INFO L82 PathProgramCache]: Analyzing trace with hash -794227168, now seen corresponding path program 1 times [2019-10-14 23:37:29,457 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:29,457 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476585482] [2019-10-14 23:37:29,457 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:29,457 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:29,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,776 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,934 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 23:37:29,934 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476585482] [2019-10-14 23:37:29,935 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:29,935 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 23:37:29,935 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752528461] [2019-10-14 23:37:29,936 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:37:29,936 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:29,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:37:29,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:37:29,937 INFO L87 Difference]: Start difference. First operand 570 states and 666 transitions. Second operand 13 states. [2019-10-14 23:37:30,578 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:30,837 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:31,079 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:32,264 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:33,020 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:33,358 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:37:33,654 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:37:34,540 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:34,899 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:35,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:35,337 INFO L93 Difference]: Finished difference Result 1158 states and 1378 transitions. [2019-10-14 23:37:35,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-14 23:37:35,337 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 95 [2019-10-14 23:37:35,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:35,342 INFO L225 Difference]: With dead ends: 1158 [2019-10-14 23:37:35,343 INFO L226 Difference]: Without dead ends: 612 [2019-10-14 23:37:35,345 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2019-10-14 23:37:35,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2019-10-14 23:37:35,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 570. [2019-10-14 23:37:35,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2019-10-14 23:37:35,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 654 transitions. [2019-10-14 23:37:35,447 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 654 transitions. Word has length 95 [2019-10-14 23:37:35,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:35,449 INFO L462 AbstractCegarLoop]: Abstraction has 570 states and 654 transitions. [2019-10-14 23:37:35,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-14 23:37:35,449 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 654 transitions. [2019-10-14 23:37:35,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-14 23:37:35,452 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:35,452 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:37:35,453 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:35,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:35,453 INFO L82 PathProgramCache]: Analyzing trace with hash 2081124794, now seen corresponding path program 1 times [2019-10-14 23:37:35,453 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:35,454 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449123184] [2019-10-14 23:37:35,454 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:35,454 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:35,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,779 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:35,940 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-14 23:37:35,941 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449123184] [2019-10-14 23:37:35,941 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52845161] [2019-10-14 23:37:35,941 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 23:37:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:36,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-14 23:37:36,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:37:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-14 23:37:36,386 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:37:36,386 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2019-10-14 23:37:36,387 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805202278] [2019-10-14 23:37:36,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-14 23:37:36,388 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:36,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-14 23:37:36,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:37:36,390 INFO L87 Difference]: Start difference. First operand 570 states and 654 transitions. Second operand 19 states. [2019-10-14 23:37:37,329 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188