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_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:36:53,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:36:53,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:36:53,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:36:53,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:36:53,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:36:53,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:36:53,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:36:53,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:36:53,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:36:53,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:36:53,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:36:53,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:36:53,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:36:53,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:36:53,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:36:53,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:36:53,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:36:53,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:36:53,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:36:53,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:36:53,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:36:53,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:36:53,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:36:53,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:36:53,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:36:53,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:36:53,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:36:53,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:36:53,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:36:53,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:36:53,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:36:53,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:36:53,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:36:53,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:36:53,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:36:53,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:36:53,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:36:53,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:36:53,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:36:53,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:36:53,856 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 23:36:53,878 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:36:53,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:36:53,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:36:53,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:36:53,881 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:36:53,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:36:53,882 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:36:53,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:36:53,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:36:53,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:36:53,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:36:53,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:36:53,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:36:53,884 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:36:53,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:36:53,885 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:36:53,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:36:53,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:36:53,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:36:53,885 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:36:53,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:36:53,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:36:53,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:36:53,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:36:53,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:36:53,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:36:53,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:36:53,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:36:53,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:36:54,193 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:36:54,216 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:36:54,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:36:54,221 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:36:54,221 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:36:54,222 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c [2019-10-14 23:36:54,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eff055bd3/51db65c49050436596b1788890b7e2a3/FLAG0f8d47cb9 [2019-10-14 23:36:54,820 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:36:54,821 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c [2019-10-14 23:36:54,832 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eff055bd3/51db65c49050436596b1788890b7e2a3/FLAG0f8d47cb9 [2019-10-14 23:36:55,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eff055bd3/51db65c49050436596b1788890b7e2a3 [2019-10-14 23:36:55,165 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:36:55,166 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:36:55,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:36:55,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:36:55,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:36:55,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:36:55" (1/1) ... [2019-10-14 23:36:55,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0d2013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:55, skipping insertion in model container [2019-10-14 23:36:55,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:36:55" (1/1) ... [2019-10-14 23:36:55,181 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:36:55,237 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:36:55,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:36:55,714 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:36:55,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:36:55,842 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:36:55,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:55 WrapperNode [2019-10-14 23:36:55,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:36:55,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:36:55,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:36:55,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:36:55,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:55" (1/1) ... [2019-10-14 23:36:55,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:55" (1/1) ... [2019-10-14 23:36:55,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:55" (1/1) ... [2019-10-14 23:36:55,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:55" (1/1) ... [2019-10-14 23:36:55,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:55" (1/1) ... [2019-10-14 23:36:55,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:55" (1/1) ... [2019-10-14 23:36:55,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:55" (1/1) ... [2019-10-14 23:36:55,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:36:55,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:36:55,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:36:55,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:36:55,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:55" (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 23:36:55,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:36:55,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:36:55,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:36:55,987 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:36:55,987 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:36:55,987 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:36:55,987 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:36:55,988 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:36:55,988 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:36:55,988 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:36:55,988 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:36:55,988 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:36:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:36:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-14 23:36:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:36:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-14 23:36:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:36:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:36:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:36:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:36:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:36:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:36:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:36:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-14 23:36:55,991 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:36:55,991 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:36:55,991 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:36:55,991 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:36:55,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:36:55,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:36:55,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:36:55,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:36:55,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:36:55,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:36:55,992 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:36:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:36:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:36:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:36:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:36:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:36:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:36:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:36:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:36:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:36:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:36:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:36:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:36:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-14 23:36:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:36:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:36:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:36:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:36:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:36:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-14 23:36:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:36:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:36:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:36:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:36:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-14 23:36:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:36:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:36:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:36:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:36:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:36:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:36:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:36:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:36:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:36:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:36:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:36:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:36:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:36:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:36:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:36:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:36:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:36:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:36:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:36:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:36:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:36:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:36:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:36:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:36:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:36:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:36:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:36:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:36:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:36:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:36:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:36:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:36:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:36:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:36:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:36:57,171 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:36:57,174 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:36:57,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:36:57 BoogieIcfgContainer [2019-10-14 23:36:57,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:36:57,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:36:57,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:36:57,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:36:57,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:36:55" (1/3) ... [2019-10-14 23:36:57,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c60e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:36:57, skipping insertion in model container [2019-10-14 23:36:57,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:55" (2/3) ... [2019-10-14 23:36:57,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c60e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:36:57, skipping insertion in model container [2019-10-14 23:36:57,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:36:57" (3/3) ... [2019-10-14 23:36:57,186 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product49.cil.c [2019-10-14 23:36:57,195 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:36:57,206 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:36:57,216 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:36:57,239 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:36:57,239 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:36:57,239 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:36:57,239 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:36:57,239 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:36:57,240 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:36:57,240 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:36:57,240 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:36:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2019-10-14 23:36:57,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-14 23:36:57,274 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:57,275 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 23:36:57,277 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:57,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:57,284 INFO L82 PathProgramCache]: Analyzing trace with hash 2107173997, now seen corresponding path program 1 times [2019-10-14 23:36:57,294 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:57,295 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193769776] [2019-10-14 23:36:57,295 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:57,295 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:57,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:58,004 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:58,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:58,123 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 23:36:58,124 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193769776] [2019-10-14 23:36:58,125 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:58,126 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:36:58,133 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132360556] [2019-10-14 23:36:58,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:36:58,141 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:58,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:36:58,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:36:58,158 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 3 states. [2019-10-14 23:36:59,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:59,320 INFO L93 Difference]: Finished difference Result 309 states and 402 transitions. [2019-10-14 23:36:59,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:36:59,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-14 23:36:59,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:59,338 INFO L225 Difference]: With dead ends: 309 [2019-10-14 23:36:59,338 INFO L226 Difference]: Without dead ends: 166 [2019-10-14 23:36:59,343 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:36:59,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-10-14 23:36:59,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 134. [2019-10-14 23:36:59,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-14 23:36:59,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 157 transitions. [2019-10-14 23:36:59,483 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 157 transitions. Word has length 52 [2019-10-14 23:36:59,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:59,484 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 157 transitions. [2019-10-14 23:36:59,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:36:59,484 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 157 transitions. [2019-10-14 23:36:59,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-14 23:36:59,495 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:59,495 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 23:36:59,496 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:59,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:59,498 INFO L82 PathProgramCache]: Analyzing trace with hash -167379318, now seen corresponding path program 1 times [2019-10-14 23:36:59,498 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:59,498 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837571958] [2019-10-14 23:36:59,499 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:59,499 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:59,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:59,876 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:59,913 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 23:36:59,913 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837571958] [2019-10-14 23:36:59,913 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:59,914 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:36:59,914 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531889823] [2019-10-14 23:36:59,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:36:59,916 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:59,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:36:59,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:36:59,917 INFO L87 Difference]: Start difference. First operand 134 states and 157 transitions. Second operand 4 states. [2019-10-14 23:37:00,364 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:01,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:01,152 INFO L93 Difference]: Finished difference Result 242 states and 293 transitions. [2019-10-14 23:37:01,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:37:01,154 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2019-10-14 23:37:01,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:01,157 INFO L225 Difference]: With dead ends: 242 [2019-10-14 23:37:01,157 INFO L226 Difference]: Without dead ends: 150 [2019-10-14 23:37:01,159 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 23:37:01,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-10-14 23:37:01,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 125. [2019-10-14 23:37:01,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-14 23:37:01,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 145 transitions. [2019-10-14 23:37:01,192 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 145 transitions. Word has length 53 [2019-10-14 23:37:01,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:01,192 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 145 transitions. [2019-10-14 23:37:01,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:37:01,193 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 145 transitions. [2019-10-14 23:37:01,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-14 23:37:01,195 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:01,195 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:37:01,195 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:01,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:01,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1142127631, now seen corresponding path program 1 times [2019-10-14 23:37:01,196 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:01,196 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445914298] [2019-10-14 23:37:01,196 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:01,196 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:01,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,503 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:01,551 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 23:37:01,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445914298] [2019-10-14 23:37:01,552 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:01,552 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:37:01,553 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105983910] [2019-10-14 23:37:01,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:37:01,553 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:01,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:37:01,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:37:01,554 INFO L87 Difference]: Start difference. First operand 125 states and 145 transitions. Second operand 4 states. [2019-10-14 23:37:01,889 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:02,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:02,727 INFO L93 Difference]: Finished difference Result 251 states and 307 transitions. [2019-10-14 23:37:02,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:37:02,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2019-10-14 23:37:02,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:02,731 INFO L225 Difference]: With dead ends: 251 [2019-10-14 23:37:02,731 INFO L226 Difference]: Without dead ends: 150 [2019-10-14 23:37:02,732 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:37:02,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-10-14 23:37:02,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 125. [2019-10-14 23:37:02,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-14 23:37:02,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 144 transitions. [2019-10-14 23:37:02,768 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 144 transitions. Word has length 57 [2019-10-14 23:37:02,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:02,768 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 144 transitions. [2019-10-14 23:37:02,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:37:02,768 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 144 transitions. [2019-10-14 23:37:02,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-14 23:37:02,770 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:02,770 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] [2019-10-14 23:37:02,770 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:02,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:02,771 INFO L82 PathProgramCache]: Analyzing trace with hash -410485180, now seen corresponding path program 1 times [2019-10-14 23:37:02,771 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:02,771 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586452347] [2019-10-14 23:37:02,771 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:02,772 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:02,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,063 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:03,179 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 23:37:03,179 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586452347] [2019-10-14 23:37:03,180 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:03,180 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:37:03,181 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916086151] [2019-10-14 23:37:03,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:37:03,182 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:03,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:37:03,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:37:03,183 INFO L87 Difference]: Start difference. First operand 125 states and 144 transitions. Second operand 6 states. [2019-10-14 23:37:03,636 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:04,979 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:05,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:05,706 INFO L93 Difference]: Finished difference Result 355 states and 437 transitions. [2019-10-14 23:37:05,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:37:05,707 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2019-10-14 23:37:05,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:05,711 INFO L225 Difference]: With dead ends: 355 [2019-10-14 23:37:05,712 INFO L226 Difference]: Without dead ends: 254 [2019-10-14 23:37:05,713 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:37:05,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-10-14 23:37:05,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 213. [2019-10-14 23:37:05,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2019-10-14 23:37:05,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 243 transitions. [2019-10-14 23:37:05,778 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 243 transitions. Word has length 70 [2019-10-14 23:37:05,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:05,779 INFO L462 AbstractCegarLoop]: Abstraction has 213 states and 243 transitions. [2019-10-14 23:37:05,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:37:05,779 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 243 transitions. [2019-10-14 23:37:05,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-14 23:37:05,780 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:05,780 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] [2019-10-14 23:37:05,781 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:05,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:05,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1731142584, now seen corresponding path program 1 times [2019-10-14 23:37:05,781 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:05,781 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842215283] [2019-10-14 23:37:05,782 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:05,782 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:05,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:06,132 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:06,252 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 23:37:06,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842215283] [2019-10-14 23:37:06,253 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:06,253 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:37:06,253 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728779609] [2019-10-14 23:37:06,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:37:06,255 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:06,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:37:06,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:37:06,257 INFO L87 Difference]: Start difference. First operand 213 states and 243 transitions. Second operand 8 states. [2019-10-14 23:37:06,713 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:08,056 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:08,360 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:08,637 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:08,932 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:09,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:09,768 INFO L93 Difference]: Finished difference Result 561 states and 700 transitions. [2019-10-14 23:37:09,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:37:09,768 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2019-10-14 23:37:09,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:09,773 INFO L225 Difference]: With dead ends: 561 [2019-10-14 23:37:09,773 INFO L226 Difference]: Without dead ends: 372 [2019-10-14 23:37:09,774 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 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 23:37:09,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2019-10-14 23:37:09,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 332. [2019-10-14 23:37:09,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2019-10-14 23:37:09,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 387 transitions. [2019-10-14 23:37:09,843 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 387 transitions. Word has length 84 [2019-10-14 23:37:09,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:09,843 INFO L462 AbstractCegarLoop]: Abstraction has 332 states and 387 transitions. [2019-10-14 23:37:09,843 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:37:09,844 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 387 transitions. [2019-10-14 23:37:09,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-14 23:37:09,845 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:09,845 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] [2019-10-14 23:37:09,846 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:09,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:09,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1024694334, now seen corresponding path program 1 times [2019-10-14 23:37:09,846 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:09,846 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244438038] [2019-10-14 23:37:09,847 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:09,847 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:09,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:10,184 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:10,357 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 23:37:10,359 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244438038] [2019-10-14 23:37:10,360 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:10,360 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:37:10,361 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685613208] [2019-10-14 23:37:10,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:37:10,362 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:10,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:37:10,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:37:10,363 INFO L87 Difference]: Start difference. First operand 332 states and 387 transitions. Second operand 10 states. [2019-10-14 23:37:11,045 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:12,549 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:12,908 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:37:13,196 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:37:13,460 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:13,881 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:15,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:15,196 INFO L93 Difference]: Finished difference Result 763 states and 968 transitions. [2019-10-14 23:37:15,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:37:15,197 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2019-10-14 23:37:15,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:15,202 INFO L225 Difference]: With dead ends: 763 [2019-10-14 23:37:15,202 INFO L226 Difference]: Without dead ends: 563 [2019-10-14 23:37:15,203 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:37:15,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2019-10-14 23:37:15,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 495. [2019-10-14 23:37:15,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2019-10-14 23:37:15,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 586 transitions. [2019-10-14 23:37:15,293 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 586 transitions. Word has length 88 [2019-10-14 23:37:15,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:15,293 INFO L462 AbstractCegarLoop]: Abstraction has 495 states and 586 transitions. [2019-10-14 23:37:15,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:37:15,294 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 586 transitions. [2019-10-14 23:37:15,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-14 23:37:15,296 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:15,296 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] [2019-10-14 23:37:15,296 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:15,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:15,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1947377917, now seen corresponding path program 1 times [2019-10-14 23:37:15,297 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:15,297 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817632550] [2019-10-14 23:37:15,297 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:15,297 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:15,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:15,554 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:15,669 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 23:37:15,669 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817632550] [2019-10-14 23:37:15,670 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:15,670 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:37:15,670 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347172175] [2019-10-14 23:37:15,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:37:15,672 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:15,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:37:15,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:37:15,673 INFO L87 Difference]: Start difference. First operand 495 states and 586 transitions. Second operand 8 states. [2019-10-14 23:37:16,635 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:16,885 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:17,172 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:18,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:18,247 INFO L93 Difference]: Finished difference Result 918 states and 1129 transitions. [2019-10-14 23:37:18,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:37:18,248 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2019-10-14 23:37:18,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:18,253 INFO L225 Difference]: With dead ends: 918 [2019-10-14 23:37:18,253 INFO L226 Difference]: Without dead ends: 551 [2019-10-14 23:37:18,254 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:37:18,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-10-14 23:37:18,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 495. [2019-10-14 23:37:18,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2019-10-14 23:37:18,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 585 transitions. [2019-10-14 23:37:18,340 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 585 transitions. Word has length 88 [2019-10-14 23:37:18,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:18,340 INFO L462 AbstractCegarLoop]: Abstraction has 495 states and 585 transitions. [2019-10-14 23:37:18,340 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:37:18,340 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 585 transitions. [2019-10-14 23:37:18,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-14 23:37:18,342 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:18,342 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] [2019-10-14 23:37:18,343 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:18,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:18,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1503583877, now seen corresponding path program 1 times [2019-10-14 23:37:18,343 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:18,344 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163842860] [2019-10-14 23:37:18,344 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:18,344 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:18,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:18,607 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:18,779 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 23:37:18,780 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163842860] [2019-10-14 23:37:18,781 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:18,781 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:37:18,781 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494337881] [2019-10-14 23:37:18,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:37:18,782 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:18,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:37:18,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:37:18,789 INFO L87 Difference]: Start difference. First operand 495 states and 585 transitions. Second operand 12 states. [2019-10-14 23:37:19,644 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:19,906 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:20,154 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:20,894 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:21,153 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:37:21,443 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:21,705 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:23,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:23,009 INFO L93 Difference]: Finished difference Result 1011 states and 1246 transitions. [2019-10-14 23:37:23,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-14 23:37:23,009 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2019-10-14 23:37:23,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:23,016 INFO L225 Difference]: With dead ends: 1011 [2019-10-14 23:37:23,016 INFO L226 Difference]: Without dead ends: 540 [2019-10-14 23:37:23,018 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2019-10-14 23:37:23,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2019-10-14 23:37:23,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 495. [2019-10-14 23:37:23,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2019-10-14 23:37:23,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 583 transitions. [2019-10-14 23:37:23,116 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 583 transitions. Word has length 88 [2019-10-14 23:37:23,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:23,117 INFO L462 AbstractCegarLoop]: Abstraction has 495 states and 583 transitions. [2019-10-14 23:37:23,117 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:37:23,117 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 583 transitions. [2019-10-14 23:37:23,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-14 23:37:23,121 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:23,121 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:37:23,122 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:23,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:23,122 INFO L82 PathProgramCache]: Analyzing trace with hash -254991864, now seen corresponding path program 1 times [2019-10-14 23:37:23,123 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:23,123 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750677314] [2019-10-14 23:37:23,123 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:23,123 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:23,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:23,459 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:23,613 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 23:37:23,613 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750677314] [2019-10-14 23:37:23,613 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:37:23,614 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 23:37:23,614 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723696744] [2019-10-14 23:37:23,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:37:23,615 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:23,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:37:23,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:37:23,615 INFO L87 Difference]: Start difference. First operand 495 states and 583 transitions. Second operand 13 states. [2019-10-14 23:37:24,443 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:24,705 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:24,960 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:37:26,065 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:26,797 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:27,159 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:37:27,471 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:37:28,277 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:37:28,612 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:28,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:37:28,956 INFO L93 Difference]: Finished difference Result 1005 states and 1206 transitions. [2019-10-14 23:37:28,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-14 23:37:28,957 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 89 [2019-10-14 23:37:28,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:37:28,961 INFO L225 Difference]: With dead ends: 1005 [2019-10-14 23:37:28,961 INFO L226 Difference]: Without dead ends: 534 [2019-10-14 23:37:28,963 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2019-10-14 23:37:28,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2019-10-14 23:37:29,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 495. [2019-10-14 23:37:29,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2019-10-14 23:37:29,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 571 transitions. [2019-10-14 23:37:29,041 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 571 transitions. Word has length 89 [2019-10-14 23:37:29,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:37:29,041 INFO L462 AbstractCegarLoop]: Abstraction has 495 states and 571 transitions. [2019-10-14 23:37:29,042 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-14 23:37:29,042 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 571 transitions. [2019-10-14 23:37:29,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-14 23:37:29,044 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:37:29,045 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:37:29,045 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:37:29,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:37:29,045 INFO L82 PathProgramCache]: Analyzing trace with hash 2112238304, now seen corresponding path program 1 times [2019-10-14 23:37:29,046 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:37:29,046 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023468044] [2019-10-14 23:37:29,046 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:29,046 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:37:29,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:37:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,311 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:37:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,644 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-14 23:37:29,644 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023468044] [2019-10-14 23:37:29,645 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990641566] [2019-10-14 23:37:29,645 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 23:37:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:37:29,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-14 23:37:29,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:37:30,288 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-14 23:37:30,289 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:37:30,289 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2019-10-14 23:37:30,289 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865105334] [2019-10-14 23:37:30,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-14 23:37:30,291 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:37:30,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-14 23:37:30,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:37:30,291 INFO L87 Difference]: Start difference. First operand 495 states and 571 transitions. Second operand 19 states. [2019-10-14 23:37:31,066 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:31,853 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:37:32,184 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:37:32,579 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189