java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:40:23,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:40:23,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:40:23,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:40:23,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:40:23,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:40:23,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:40:23,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:40:23,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:40:23,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:40:23,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:40:23,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:40:23,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:40:23,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:40:23,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:40:23,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:40:23,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:40:23,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:40:23,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:40:23,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:40:23,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:40:23,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:40:23,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:40:23,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:40:23,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:40:23,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:40:23,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:40:23,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:40:23,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:40:23,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:40:23,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:40:23,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:40:23,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:40:23,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:40:23,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:40:23,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:40:23,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:40:23,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:40:23,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:40:23,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:40:23,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:40:23,820 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 23:40:23,833 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:40:23,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:40:23,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:40:23,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:40:23,835 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:40:23,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:40:23,835 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:40:23,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:40:23,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:40:23,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:40:23,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:40:23,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:40:23,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:40:23,837 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:40:23,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:40:23,837 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:40:23,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:40:23,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:40:23,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:40:23,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:40:23,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:40:23,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:40:23,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:40:23,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:40:23,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:40:23,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:40:23,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:40:23,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:40:23,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:40:24,121 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:40:24,134 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:40:24,138 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:40:24,139 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:40:24,140 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:40:24,140 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2019-10-14 23:40:24,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dfeb96ee/63ecd6476e724ad69efe6081b833696c/FLAG69d31b436 [2019-10-14 23:40:24,696 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:40:24,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2019-10-14 23:40:24,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dfeb96ee/63ecd6476e724ad69efe6081b833696c/FLAG69d31b436 [2019-10-14 23:40:25,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dfeb96ee/63ecd6476e724ad69efe6081b833696c [2019-10-14 23:40:25,071 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:40:25,073 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:40:25,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:40:25,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:40:25,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:40:25,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:40:25" (1/1) ... [2019-10-14 23:40:25,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4432d2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:25, skipping insertion in model container [2019-10-14 23:40:25,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:40:25" (1/1) ... [2019-10-14 23:40:25,089 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:40:25,153 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:40:25,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:40:25,607 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:40:25,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:40:25,728 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:40:25,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:25 WrapperNode [2019-10-14 23:40:25,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:40:25,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:40:25,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:40:25,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:40:25,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:25" (1/1) ... [2019-10-14 23:40:25,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:25" (1/1) ... [2019-10-14 23:40:25,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:25" (1/1) ... [2019-10-14 23:40:25,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:25" (1/1) ... [2019-10-14 23:40:25,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:25" (1/1) ... [2019-10-14 23:40:25,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:25" (1/1) ... [2019-10-14 23:40:25,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:25" (1/1) ... [2019-10-14 23:40:25,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:40:25,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:40:25,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:40:25,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:40:25,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:25" (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 23:40:25,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:40:25,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:40:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:40:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:40:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:40:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:40:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:40:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:40:25,883 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:40:25,883 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:40:25,883 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:40:25,883 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:40:25,883 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:40:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:40:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:40:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:40:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:40:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-14 23:40:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-14 23:40:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:40:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:40:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:40:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:40:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:40:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:40:25,886 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:40:25,886 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:40:25,886 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:40:25,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:40:25,886 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:40:25,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:40:25,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-14 23:40:25,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-14 23:40:25,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-14 23:40:25,887 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:40:25,887 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:40:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:40:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:40:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:40:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:40:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:40:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:40:25,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:40:25,889 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:40:25,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:40:25,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:40:25,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:40:25,889 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:40:25,890 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:40:25,890 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:40:25,890 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:40:25,890 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:40:25,890 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:40:25,890 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:40:25,890 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:40:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:40:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:40:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:40:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-14 23:40:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-14 23:40:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-14 23:40:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-14 23:40:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:40:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:40:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:40:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:40:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:40:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:40:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:40:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:40:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:40:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:40:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:40:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:40:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:40:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:40:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:40:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:40:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:40:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:40:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:40:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:40:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:40:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:40:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:40:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:40:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:40:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:40:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:40:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-14 23:40:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:40:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:40:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:40:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:40:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:40:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:40:26,887 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:40:26,887 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:40:26,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:40:26 BoogieIcfgContainer [2019-10-14 23:40:26,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:40:26,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:40:26,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:40:26,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:40:26,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:40:25" (1/3) ... [2019-10-14 23:40:26,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3dd7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:40:26, skipping insertion in model container [2019-10-14 23:40:26,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:25" (2/3) ... [2019-10-14 23:40:26,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3dd7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:40:26, skipping insertion in model container [2019-10-14 23:40:26,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:40:26" (3/3) ... [2019-10-14 23:40:26,899 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2019-10-14 23:40:26,909 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:40:26,918 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:40:26,930 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:40:26,969 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:40:26,969 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:40:26,969 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:40:26,970 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:40:26,970 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:40:26,970 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:40:26,970 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:40:26,970 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:40:26,998 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2019-10-14 23:40:27,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-14 23:40:27,007 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:27,008 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:40:27,010 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:27,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:27,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1424451371, now seen corresponding path program 1 times [2019-10-14 23:40:27,025 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:27,025 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650897501] [2019-10-14 23:40:27,026 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:27,026 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:27,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:27,668 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:27,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:27,773 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650897501] [2019-10-14 23:40:27,774 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:27,774 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:40:27,775 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261036824] [2019-10-14 23:40:27,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:40:27,782 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:27,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:40:27,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:40:27,799 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 4 states. [2019-10-14 23:40:28,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:28,843 INFO L93 Difference]: Finished difference Result 286 states and 369 transitions. [2019-10-14 23:40:28,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:40:28,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-10-14 23:40:28,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:28,863 INFO L225 Difference]: With dead ends: 286 [2019-10-14 23:40:28,864 INFO L226 Difference]: Without dead ends: 159 [2019-10-14 23:40:28,869 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:40:28,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-10-14 23:40:28,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 128. [2019-10-14 23:40:28,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-14 23:40:28,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2019-10-14 23:40:29,001 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 59 [2019-10-14 23:40:29,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:29,001 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2019-10-14 23:40:29,002 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:40:29,002 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2019-10-14 23:40:29,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-14 23:40:29,016 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:29,017 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:40:29,017 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:29,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:29,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1343962066, now seen corresponding path program 1 times [2019-10-14 23:40:29,018 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:29,019 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516674664] [2019-10-14 23:40:29,019 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:29,019 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:29,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:29,436 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:29,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:29,504 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516674664] [2019-10-14 23:40:29,505 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:29,505 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:40:29,505 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992774386] [2019-10-14 23:40:29,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:40:29,527 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:29,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:40:29,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:40:29,527 INFO L87 Difference]: Start difference. First operand 128 states and 149 transitions. Second operand 5 states. [2019-10-14 23:40:30,080 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:30,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:30,894 INFO L93 Difference]: Finished difference Result 218 states and 267 transitions. [2019-10-14 23:40:30,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:40:30,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-14 23:40:30,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:30,898 INFO L225 Difference]: With dead ends: 218 [2019-10-14 23:40:30,899 INFO L226 Difference]: Without dead ends: 149 [2019-10-14 23:40:30,900 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:40:30,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-10-14 23:40:30,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 119. [2019-10-14 23:40:30,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-10-14 23:40:30,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2019-10-14 23:40:30,933 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 60 [2019-10-14 23:40:30,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:30,933 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2019-10-14 23:40:30,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:40:30,934 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2019-10-14 23:40:30,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-14 23:40:30,935 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:30,935 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:40:30,936 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:30,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:30,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1988567769, now seen corresponding path program 1 times [2019-10-14 23:40:30,936 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:30,937 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607171161] [2019-10-14 23:40:30,937 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:30,937 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:30,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:31,318 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:31,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:31,478 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607171161] [2019-10-14 23:40:31,478 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:31,478 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:40:31,478 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515638283] [2019-10-14 23:40:31,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:40:31,480 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:31,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:40:31,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:40:31,481 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 9 states. [2019-10-14 23:40:31,917 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:32,278 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-14 23:40:32,611 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:32,891 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:33,935 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:35,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:35,338 INFO L93 Difference]: Finished difference Result 402 states and 496 transitions. [2019-10-14 23:40:35,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 23:40:35,339 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2019-10-14 23:40:35,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:35,344 INFO L225 Difference]: With dead ends: 402 [2019-10-14 23:40:35,344 INFO L226 Difference]: Without dead ends: 311 [2019-10-14 23:40:35,345 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:40:35,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2019-10-14 23:40:35,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 242. [2019-10-14 23:40:35,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2019-10-14 23:40:35,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 290 transitions. [2019-10-14 23:40:35,411 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 290 transitions. Word has length 65 [2019-10-14 23:40:35,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:35,411 INFO L462 AbstractCegarLoop]: Abstraction has 242 states and 290 transitions. [2019-10-14 23:40:35,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:40:35,411 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 290 transitions. [2019-10-14 23:40:35,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-14 23:40:35,413 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:35,413 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:40:35,413 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:35,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:35,414 INFO L82 PathProgramCache]: Analyzing trace with hash 827482166, now seen corresponding path program 1 times [2019-10-14 23:40:35,414 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:35,414 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447488876] [2019-10-14 23:40:35,415 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:35,415 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:35,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,772 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:40:35,864 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447488876] [2019-10-14 23:40:35,864 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:35,864 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:40:35,865 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105861663] [2019-10-14 23:40:35,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:40:35,865 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:35,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:40:35,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:40:35,866 INFO L87 Difference]: Start difference. First operand 242 states and 290 transitions. Second operand 9 states. [2019-10-14 23:40:36,373 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:37,215 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:38,041 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:38,426 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:38,729 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:39,005 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:39,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:39,667 INFO L93 Difference]: Finished difference Result 631 states and 816 transitions. [2019-10-14 23:40:39,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:40:39,668 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2019-10-14 23:40:39,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:39,675 INFO L225 Difference]: With dead ends: 631 [2019-10-14 23:40:39,675 INFO L226 Difference]: Without dead ends: 417 [2019-10-14 23:40:39,677 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:40:39,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2019-10-14 23:40:39,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 353. [2019-10-14 23:40:39,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2019-10-14 23:40:39,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 423 transitions. [2019-10-14 23:40:39,755 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 423 transitions. Word has length 70 [2019-10-14 23:40:39,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:39,755 INFO L462 AbstractCegarLoop]: Abstraction has 353 states and 423 transitions. [2019-10-14 23:40:39,755 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:40:39,756 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 423 transitions. [2019-10-14 23:40:39,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-14 23:40:39,757 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:39,758 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:40:39,758 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:39,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:39,758 INFO L82 PathProgramCache]: Analyzing trace with hash 361073596, now seen corresponding path program 1 times [2019-10-14 23:40:39,758 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:39,759 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662571600] [2019-10-14 23:40:39,759 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:39,759 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:39,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:40,064 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:40,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:40,226 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662571600] [2019-10-14 23:40:40,226 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:40,226 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:40:40,227 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473383501] [2019-10-14 23:40:40,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:40:40,228 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:40,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:40:40,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:40:40,230 INFO L87 Difference]: Start difference. First operand 353 states and 423 transitions. Second operand 9 states. [2019-10-14 23:40:40,656 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:41,852 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:42,139 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-14 23:40:42,439 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:42,762 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:43,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:43,719 INFO L93 Difference]: Finished difference Result 1112 states and 1489 transitions. [2019-10-14 23:40:43,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:40:43,719 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2019-10-14 23:40:43,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:43,725 INFO L225 Difference]: With dead ends: 1112 [2019-10-14 23:40:43,726 INFO L226 Difference]: Without dead ends: 787 [2019-10-14 23:40:43,728 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:40:43,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2019-10-14 23:40:43,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 665. [2019-10-14 23:40:43,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2019-10-14 23:40:43,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 802 transitions. [2019-10-14 23:40:43,866 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 802 transitions. Word has length 88 [2019-10-14 23:40:43,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:43,866 INFO L462 AbstractCegarLoop]: Abstraction has 665 states and 802 transitions. [2019-10-14 23:40:43,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:40:43,866 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 802 transitions. [2019-10-14 23:40:43,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-14 23:40:43,869 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:43,869 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:40:43,869 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:43,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:43,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1750216773, now seen corresponding path program 1 times [2019-10-14 23:40:43,870 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:43,870 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144300529] [2019-10-14 23:40:43,870 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:43,871 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:43,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,138 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:44,296 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144300529] [2019-10-14 23:40:44,297 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:44,298 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:40:44,298 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610860708] [2019-10-14 23:40:44,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:40:44,301 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:44,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:40:44,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:40:44,302 INFO L87 Difference]: Start difference. First operand 665 states and 802 transitions. Second operand 9 states. [2019-10-14 23:40:45,579 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:45,857 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-14 23:40:46,150 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:46,449 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:47,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:47,021 INFO L93 Difference]: Finished difference Result 1429 states and 1823 transitions. [2019-10-14 23:40:47,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:40:47,021 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2019-10-14 23:40:47,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:47,028 INFO L225 Difference]: With dead ends: 1429 [2019-10-14 23:40:47,028 INFO L226 Difference]: Without dead ends: 792 [2019-10-14 23:40:47,031 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:40:47,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2019-10-14 23:40:47,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 685. [2019-10-14 23:40:47,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2019-10-14 23:40:47,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 822 transitions. [2019-10-14 23:40:47,196 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 822 transitions. Word has length 88 [2019-10-14 23:40:47,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:47,198 INFO L462 AbstractCegarLoop]: Abstraction has 685 states and 822 transitions. [2019-10-14 23:40:47,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:40:47,198 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 822 transitions. [2019-10-14 23:40:47,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-14 23:40:47,205 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:47,205 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:40:47,206 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:47,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:47,206 INFO L82 PathProgramCache]: Analyzing trace with hash -364013379, now seen corresponding path program 1 times [2019-10-14 23:40:47,206 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:47,207 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654417179] [2019-10-14 23:40:47,207 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:47,207 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:47,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,508 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:47,658 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654417179] [2019-10-14 23:40:47,659 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:47,660 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:40:47,660 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300613217] [2019-10-14 23:40:47,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:40:47,662 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:47,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:40:47,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:40:47,663 INFO L87 Difference]: Start difference. First operand 685 states and 822 transitions. Second operand 11 states. [2019-10-14 23:40:48,401 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:48,687 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:48,939 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:49,813 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:50,108 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:50,392 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:51,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:51,126 INFO L93 Difference]: Finished difference Result 1290 states and 1630 transitions. [2019-10-14 23:40:51,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:40:51,126 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2019-10-14 23:40:51,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:51,133 INFO L225 Difference]: With dead ends: 1290 [2019-10-14 23:40:51,134 INFO L226 Difference]: Without dead ends: 633 [2019-10-14 23:40:51,137 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:40:51,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2019-10-14 23:40:51,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 556. [2019-10-14 23:40:51,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2019-10-14 23:40:51,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 650 transitions. [2019-10-14 23:40:51,283 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 650 transitions. Word has length 88 [2019-10-14 23:40:51,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:51,284 INFO L462 AbstractCegarLoop]: Abstraction has 556 states and 650 transitions. [2019-10-14 23:40:51,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:40:51,285 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 650 transitions. [2019-10-14 23:40:51,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-14 23:40:51,289 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:51,289 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:40:51,289 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:51,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:51,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1797836392, now seen corresponding path program 1 times [2019-10-14 23:40:51,290 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:51,296 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008021099] [2019-10-14 23:40:51,296 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:51,296 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:51,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,712 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:51,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:51,912 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008021099] [2019-10-14 23:40:51,912 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:51,912 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:40:51,913 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22316045] [2019-10-14 23:40:51,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:40:51,914 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:51,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:40:51,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:40:51,914 INFO L87 Difference]: Start difference. First operand 556 states and 650 transitions. Second operand 12 states. [2019-10-14 23:40:52,796 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:53,562 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:54,350 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:54,727 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:55,000 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-14 23:40:55,336 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:55,634 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:57,077 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:57,421 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:57,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:57,969 INFO L93 Difference]: Finished difference Result 1629 states and 2065 transitions. [2019-10-14 23:40:57,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-10-14 23:40:57,969 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 92 [2019-10-14 23:40:57,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:57,978 INFO L225 Difference]: With dead ends: 1629 [2019-10-14 23:40:57,979 INFO L226 Difference]: Without dead ends: 1277 [2019-10-14 23:40:57,981 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-10-14 23:40:57,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2019-10-14 23:40:58,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1157. [2019-10-14 23:40:58,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2019-10-14 23:40:58,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1355 transitions. [2019-10-14 23:40:58,177 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1355 transitions. Word has length 92 [2019-10-14 23:40:58,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:58,180 INFO L462 AbstractCegarLoop]: Abstraction has 1157 states and 1355 transitions. [2019-10-14 23:40:58,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:40:58,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1355 transitions. [2019-10-14 23:40:58,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-14 23:40:58,184 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:58,185 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, 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] [2019-10-14 23:40:58,185 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:58,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:58,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1966372220, now seen corresponding path program 1 times [2019-10-14 23:40:58,186 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:58,186 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138618945] [2019-10-14 23:40:58,186 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:58,186 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:58,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,542 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,757 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-14 23:40:58,758 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138618945] [2019-10-14 23:40:58,758 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715909242] [2019-10-14 23:40:58,758 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 23:40:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:58,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-14 23:40:59,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:40:59,182 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:40:59,182 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:40:59,182 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-10-14 23:40:59,183 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423916017] [2019-10-14 23:40:59,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-14 23:40:59,184 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:59,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-14 23:40:59,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:40:59,184 INFO L87 Difference]: Start difference. First operand 1157 states and 1355 transitions. Second operand 20 states. [2019-10-14 23:41:00,304 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-14 23:41:00,724 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2019-10-14 23:41:01,045 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-14 23:41:01,349 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-14 23:41:02,215 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2019-10-14 23:41:02,613 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189