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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:07:55,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:55,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:55,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:55,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:55,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:55,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:55,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:55,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:55,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:55,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:55,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:55,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:55,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:55,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:55,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:55,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:55,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:56,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:56,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:56,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:56,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:56,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:56,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:56,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:56,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:56,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:56,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:56,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:56,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:56,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:56,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:56,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:56,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:56,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:56,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:56,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:56,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:56,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:56,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:56,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:56,021 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:07:56,039 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:56,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:56,039 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:56,040 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:56,040 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:56,041 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:56,041 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:56,041 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:56,041 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:56,041 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:56,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:56,045 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:56,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:56,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:56,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:56,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:56,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:56,046 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:56,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:56,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:56,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:56,048 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:56,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:56,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:56,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:56,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:56,049 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:56,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:56,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:56,050 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:56,102 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:56,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:56,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:56,119 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:56,120 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:56,120 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2019-09-16 17:07:56,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec387a134/578dbbe8977e4825ac3fed56aaa04ac9/FLAG8888e571b [2019-09-16 17:07:56,791 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:56,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2019-09-16 17:07:56,805 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec387a134/578dbbe8977e4825ac3fed56aaa04ac9/FLAG8888e571b [2019-09-16 17:07:57,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec387a134/578dbbe8977e4825ac3fed56aaa04ac9 [2019-09-16 17:07:57,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:57,027 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:57,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:57,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:57,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:57,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e4c7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57, skipping insertion in model container [2019-09-16 17:07:57,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,043 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:57,106 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:57,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:57,592 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:57,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:57,762 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:57,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57 WrapperNode [2019-09-16 17:07:57,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:57,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:57,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:57,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:57,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:57,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:57,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:57,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:57,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (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 [2019-09-16 17:07:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:07:57,930 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:07:57,930 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:07:57,930 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:07:57,930 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:07:57,930 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:07:57,933 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:07:57,933 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:07:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:07:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:07:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:07:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-16 17:07:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:07:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:07:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:07:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:07:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-09-16 17:07:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:07:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:07:57,936 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:07:57,936 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:07:57,936 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:07:57,936 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-16 17:07:57,936 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:07:57,936 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:07:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:07:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:07:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:07:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:07:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:07:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:07:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:07:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:57,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:07:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:07:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:07:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:07:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:07:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:07:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:07:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:07:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:07:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:07:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:07:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:07:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:07:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:07:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-16 17:07:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:07:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:07:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:07:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:07:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:07:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:07:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:07:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:07:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-16 17:07:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:07:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:07:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-09-16 17:07:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:07:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:07:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:07:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:07:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:07:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:07:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:07:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:07:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:07:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:07:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:59,089 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:59,089 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:07:59,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:59 BoogieIcfgContainer [2019-09-16 17:07:59,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:59,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:59,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:59,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:59,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:57" (1/3) ... [2019-09-16 17:07:59,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a16526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:59, skipping insertion in model container [2019-09-16 17:07:59,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (2/3) ... [2019-09-16 17:07:59,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a16526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:59, skipping insertion in model container [2019-09-16 17:07:59,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:59" (3/3) ... [2019-09-16 17:07:59,116 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2019-09-16 17:07:59,126 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:59,135 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:07:59,152 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:07:59,181 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:59,181 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:59,182 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:59,182 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:59,182 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:59,182 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:59,183 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:59,183 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:59,205 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2019-09-16 17:07:59,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:07:59,219 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:59,220 INFO L407 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] [2019-09-16 17:07:59,223 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:59,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:59,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1070296044, now seen corresponding path program 1 times [2019-09-16 17:07:59,232 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:59,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:59,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,288 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:59,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:59,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:59,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:59,542 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:59,549 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:59,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:59,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:59,570 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2019-09-16 17:07:59,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:59,621 INFO L93 Difference]: Finished difference Result 147 states and 174 transitions. [2019-09-16 17:07:59,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:59,622 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:07:59,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:59,638 INFO L225 Difference]: With dead ends: 147 [2019-09-16 17:07:59,638 INFO L226 Difference]: Without dead ends: 136 [2019-09-16 17:07:59,640 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:59,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-09-16 17:07:59,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2019-09-16 17:07:59,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-09-16 17:07:59,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2019-09-16 17:07:59,698 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 46 [2019-09-16 17:07:59,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:59,699 INFO L475 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2019-09-16 17:07:59,699 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:59,699 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2019-09-16 17:07:59,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:07:59,703 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:59,703 INFO L407 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] [2019-09-16 17:07:59,703 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:59,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:59,704 INFO L82 PathProgramCache]: Analyzing trace with hash 689119196, now seen corresponding path program 1 times [2019-09-16 17:07:59,704 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:59,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:59,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,708 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:59,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:59,899 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:59,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:07:59,900 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:59,902 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:07:59,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:07:59,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:07:59,903 INFO L87 Difference]: Start difference. First operand 136 states and 162 transitions. Second operand 3 states. [2019-09-16 17:07:59,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:59,934 INFO L93 Difference]: Finished difference Result 127 states and 150 transitions. [2019-09-16 17:07:59,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:07:59,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:07:59,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:59,938 INFO L225 Difference]: With dead ends: 127 [2019-09-16 17:07:59,938 INFO L226 Difference]: Without dead ends: 127 [2019-09-16 17:07:59,939 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:07:59,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-09-16 17:07:59,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2019-09-16 17:07:59,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-09-16 17:07:59,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 150 transitions. [2019-09-16 17:07:59,958 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 150 transitions. Word has length 47 [2019-09-16 17:07:59,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:59,958 INFO L475 AbstractCegarLoop]: Abstraction has 127 states and 150 transitions. [2019-09-16 17:07:59,958 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:07:59,958 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 150 transitions. [2019-09-16 17:07:59,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:07:59,965 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:59,965 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:59,965 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:59,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:59,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1659347680, now seen corresponding path program 1 times [2019-09-16 17:07:59,966 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:59,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:59,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,972 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:00,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:00,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:00,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:00,158 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:00,158 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:00,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:00,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:00,159 INFO L87 Difference]: Start difference. First operand 127 states and 150 transitions. Second operand 7 states. [2019-09-16 17:08:00,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:00,720 INFO L93 Difference]: Finished difference Result 280 states and 338 transitions. [2019-09-16 17:08:00,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:08:00,721 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-16 17:08:00,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:00,729 INFO L225 Difference]: With dead ends: 280 [2019-09-16 17:08:00,729 INFO L226 Difference]: Without dead ends: 280 [2019-09-16 17:08:00,730 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:08:00,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-09-16 17:08:00,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 272. [2019-09-16 17:08:00,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2019-09-16 17:08:00,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 332 transitions. [2019-09-16 17:08:00,767 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 332 transitions. Word has length 51 [2019-09-16 17:08:00,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:00,767 INFO L475 AbstractCegarLoop]: Abstraction has 272 states and 332 transitions. [2019-09-16 17:08:00,767 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:00,768 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 332 transitions. [2019-09-16 17:08:00,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-16 17:08:00,770 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:00,771 INFO L407 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] [2019-09-16 17:08:00,771 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:00,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:00,771 INFO L82 PathProgramCache]: Analyzing trace with hash -2103406603, now seen corresponding path program 1 times [2019-09-16 17:08:00,772 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:00,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:00,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:00,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:00,775 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:00,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:00,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:00,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:00,903 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:00,904 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:00,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:00,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:00,905 INFO L87 Difference]: Start difference. First operand 272 states and 332 transitions. Second operand 6 states. [2019-09-16 17:08:01,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:01,123 INFO L93 Difference]: Finished difference Result 505 states and 620 transitions. [2019-09-16 17:08:01,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:01,124 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-09-16 17:08:01,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:01,129 INFO L225 Difference]: With dead ends: 505 [2019-09-16 17:08:01,130 INFO L226 Difference]: Without dead ends: 505 [2019-09-16 17:08:01,130 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:08:01,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2019-09-16 17:08:01,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 499. [2019-09-16 17:08:01,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2019-09-16 17:08:01,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 614 transitions. [2019-09-16 17:08:01,188 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 614 transitions. Word has length 57 [2019-09-16 17:08:01,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:01,189 INFO L475 AbstractCegarLoop]: Abstraction has 499 states and 614 transitions. [2019-09-16 17:08:01,189 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:01,189 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 614 transitions. [2019-09-16 17:08:01,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-16 17:08:01,194 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:01,194 INFO L407 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] [2019-09-16 17:08:01,194 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:01,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:01,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1216252231, now seen corresponding path program 1 times [2019-09-16 17:08:01,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:01,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:01,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:01,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:01,198 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:01,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:01,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:01,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:01,297 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:01,297 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:01,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:01,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:01,298 INFO L87 Difference]: Start difference. First operand 499 states and 614 transitions. Second operand 7 states. [2019-09-16 17:08:02,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:02,037 INFO L93 Difference]: Finished difference Result 845 states and 1074 transitions. [2019-09-16 17:08:02,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-16 17:08:02,037 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-09-16 17:08:02,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:02,049 INFO L225 Difference]: With dead ends: 845 [2019-09-16 17:08:02,050 INFO L226 Difference]: Without dead ends: 845 [2019-09-16 17:08:02,050 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:08:02,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2019-09-16 17:08:02,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 749. [2019-09-16 17:08:02,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2019-09-16 17:08:02,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 911 transitions. [2019-09-16 17:08:02,154 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 911 transitions. Word has length 61 [2019-09-16 17:08:02,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:02,155 INFO L475 AbstractCegarLoop]: Abstraction has 749 states and 911 transitions. [2019-09-16 17:08:02,155 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:02,155 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 911 transitions. [2019-09-16 17:08:02,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-16 17:08:02,161 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:02,162 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:02,162 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:02,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:02,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1403376364, now seen corresponding path program 1 times [2019-09-16 17:08:02,163 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:02,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:02,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:02,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:02,166 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:02,278 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:08:02,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:02,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:08:02,279 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:02,280 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:08:02,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:08:02,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:08:02,280 INFO L87 Difference]: Start difference. First operand 749 states and 911 transitions. Second operand 4 states. [2019-09-16 17:08:02,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:02,559 INFO L93 Difference]: Finished difference Result 2047 states and 2613 transitions. [2019-09-16 17:08:02,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:08:02,559 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2019-09-16 17:08:02,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:02,573 INFO L225 Difference]: With dead ends: 2047 [2019-09-16 17:08:02,573 INFO L226 Difference]: Without dead ends: 2047 [2019-09-16 17:08:02,574 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:08:02,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2019-09-16 17:08:02,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 2001. [2019-09-16 17:08:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2019-09-16 17:08:02,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2521 transitions. [2019-09-16 17:08:02,663 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2521 transitions. Word has length 98 [2019-09-16 17:08:02,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:02,664 INFO L475 AbstractCegarLoop]: Abstraction has 2001 states and 2521 transitions. [2019-09-16 17:08:02,664 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:08:02,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2521 transitions. [2019-09-16 17:08:02,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-16 17:08:02,671 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:02,671 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:02,671 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:02,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:02,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1411135723, now seen corresponding path program 1 times [2019-09-16 17:08:02,672 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:02,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:02,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:02,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:02,677 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:02,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:08:02,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:02,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:02,851 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:02,851 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:02,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:02,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:02,852 INFO L87 Difference]: Start difference. First operand 2001 states and 2521 transitions. Second operand 6 states. [2019-09-16 17:08:02,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:02,897 INFO L93 Difference]: Finished difference Result 2085 states and 2625 transitions. [2019-09-16 17:08:02,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:02,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2019-09-16 17:08:02,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:02,910 INFO L225 Difference]: With dead ends: 2085 [2019-09-16 17:08:02,911 INFO L226 Difference]: Without dead ends: 2085 [2019-09-16 17:08:02,911 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:02,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2019-09-16 17:08:02,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 2061. [2019-09-16 17:08:02,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2061 states. [2019-09-16 17:08:02,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2061 states to 2061 states and 2585 transitions. [2019-09-16 17:08:03,000 INFO L78 Accepts]: Start accepts. Automaton has 2061 states and 2585 transitions. Word has length 98 [2019-09-16 17:08:03,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:03,000 INFO L475 AbstractCegarLoop]: Abstraction has 2061 states and 2585 transitions. [2019-09-16 17:08:03,001 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:03,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2061 states and 2585 transitions. [2019-09-16 17:08:03,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-16 17:08:03,042 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:03,042 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:03,042 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:03,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:03,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1990345235, now seen corresponding path program 1 times [2019-09-16 17:08:03,043 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:03,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:03,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:03,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:03,046 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:08:03,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:03,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:08:03,161 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:03,165 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:08:03,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:08:03,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:08:03,168 INFO L87 Difference]: Start difference. First operand 2061 states and 2585 transitions. Second operand 8 states. [2019-09-16 17:08:03,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:03,219 INFO L93 Difference]: Finished difference Result 1707 states and 2111 transitions. [2019-09-16 17:08:03,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:03,220 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2019-09-16 17:08:03,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:03,231 INFO L225 Difference]: With dead ends: 1707 [2019-09-16 17:08:03,231 INFO L226 Difference]: Without dead ends: 1707 [2019-09-16 17:08:03,232 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:08:03,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2019-09-16 17:08:03,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1707. [2019-09-16 17:08:03,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2019-09-16 17:08:03,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2111 transitions. [2019-09-16 17:08:03,309 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2111 transitions. Word has length 98 [2019-09-16 17:08:03,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:03,311 INFO L475 AbstractCegarLoop]: Abstraction has 1707 states and 2111 transitions. [2019-09-16 17:08:03,311 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:08:03,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2111 transitions. [2019-09-16 17:08:03,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-16 17:08:03,320 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:03,320 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:03,320 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:03,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:03,321 INFO L82 PathProgramCache]: Analyzing trace with hash 860662504, now seen corresponding path program 1 times [2019-09-16 17:08:03,321 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:03,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:03,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:03,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:03,325 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:03,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-16 17:08:03,527 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:08:03,528 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:08:03,529 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 103 with the following transitions: [2019-09-16 17:08:03,532 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [92], [108], [112], [113], [114], [129], [132], [134], [143], [147], [151], [154], [159], [162], [167], [170], [195], [197], [202], [205], [208], [210], [215], [217], [218], [219], [220], [226], [230], [272], [276], [277], [280], [281], [284], [286], [289], [299], [300], [301], [324], [326], [327], [345], [346], [396], [397], [402], [404], [407], [411], [413], [416], [418], [421], [434], [435], [436], [437], [438], [439], [440], [441], [442], [482], [483], [484], [485], [486], [487], [490], [494], [495], [496], [497], [498], [499], [502], [503], [504], [510], [511], [512], [513], [520], [522], [523], [528], [529], [530], [532], [533], [534], [535], [536] [2019-09-16 17:08:03,586 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:08:03,586 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:08:03,678 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:08:03,680 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-16 17:08:03,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:03,686 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:08:03,761 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:08:03,762 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:08:03,770 INFO L420 sIntCurrentIteration]: We unified 101 AI predicates to 101 [2019-09-16 17:08:03,770 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:08:03,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:08:03,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-16 17:08:03,771 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:03,772 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:03,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:03,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:03,773 INFO L87 Difference]: Start difference. First operand 1707 states and 2111 transitions. Second operand 2 states. [2019-09-16 17:08:03,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:03,773 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:08:03,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:03,774 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 102 [2019-09-16 17:08:03,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:03,774 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:08:03,774 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:03,775 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:03,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:03,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:03,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:03,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:03,775 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2019-09-16 17:08:03,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:03,776 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:03,776 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:03,776 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:03,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:03,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:03 BoogieIcfgContainer [2019-09-16 17:08:03,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:03,785 INFO L168 Benchmark]: Toolchain (without parser) took 6756.85 ms. Allocated memory was 133.2 MB in the beginning and 329.8 MB in the end (delta: 196.6 MB). Free memory was 86.3 MB in the beginning and 175.6 MB in the end (delta: -89.3 MB). Peak memory consumption was 107.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,786 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.2 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.49 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 86.1 MB in the beginning and 165.5 MB in the end (delta: -79.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,790 INFO L168 Benchmark]: Boogie Preprocessor took 89.78 ms. Allocated memory is still 199.8 MB. Free memory was 165.5 MB in the beginning and 161.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,791 INFO L168 Benchmark]: RCFGBuilder took 1237.74 ms. Allocated memory is still 199.8 MB. Free memory was 161.1 MB in the beginning and 76.5 MB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,797 INFO L168 Benchmark]: TraceAbstraction took 4673.04 ms. Allocated memory was 222.3 MB in the beginning and 329.8 MB in the end (delta: 107.5 MB). Free memory was 193.2 MB in the beginning and 175.6 MB in the end (delta: 17.6 MB). Peak memory consumption was 125.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:03,804 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 133.2 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 735.49 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 86.1 MB in the beginning and 165.5 MB in the end (delta: -79.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.78 ms. Allocated memory is still 199.8 MB. Free memory was 165.5 MB in the beginning and 161.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1237.74 ms. Allocated memory is still 199.8 MB. Free memory was 161.1 MB in the beginning and 76.5 MB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4673.04 ms. Allocated memory was 222.3 MB in the beginning and 329.8 MB in the end (delta: 107.5 MB). Free memory was 193.2 MB in the beginning and 175.6 MB in the end (delta: 17.6 MB). Peak memory consumption was 125.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 73]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 238 locations, 1 error locations. SAFE Result, 4.6s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1392 SDtfs, 782 SDslu, 3286 SDs, 0 SdLazy, 909 SolverSat, 129 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2061occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.0693069306930694 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 180 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 658 NumberOfCodeBlocks, 658 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 649 ConstructedInterpolants, 0 QuantifiedInterpolants, 81453 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 10/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...