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_spec5_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:51:05,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:51:05,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:51:06,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:51:06,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:51:06,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:51:06,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:51:06,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:51:06,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:51:06,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:51:06,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:51:06,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:51:06,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:51:06,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:51:06,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:51:06,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:51:06,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:51:06,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:51:06,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:51:06,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:51:06,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:51:06,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:51:06,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:51:06,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:51:06,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:51:06,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:51:06,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:51:06,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:51:06,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:51:06,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:51:06,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:51:06,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:51:06,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:51:06,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:51:06,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:51:06,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:51:06,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:51:06,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:51:06,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:51:06,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:51:06,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:51:06,056 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 [2019-09-10 02:51:06,085 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:51:06,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:51:06,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:51:06,086 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:51:06,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:51:06,087 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:51:06,088 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:51:06,088 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:51:06,088 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:51:06,088 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:51:06,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:51:06,091 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:51:06,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:51:06,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:51:06,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:51:06,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:51:06,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:51:06,093 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:51:06,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:51:06,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:51:06,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:51:06,094 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:51:06,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:51:06,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:51:06,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:51:06,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:51:06,095 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:51:06,095 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:51:06,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:51:06,095 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:51:06,132 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:51:06,147 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:51:06,151 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:51:06,152 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:51:06,153 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:51:06,153 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product48.cil.c [2019-09-10 02:51:06,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9db24ca80/97fb83ec5ce84b84940a3ccade2de686/FLAG9cb7017a3 [2019-09-10 02:51:06,768 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:51:06,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product48.cil.c [2019-09-10 02:51:06,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9db24ca80/97fb83ec5ce84b84940a3ccade2de686/FLAG9cb7017a3 [2019-09-10 02:51:07,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9db24ca80/97fb83ec5ce84b84940a3ccade2de686 [2019-09-10 02:51:07,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:51:07,099 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:51:07,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:51:07,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:51:07,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:51:07,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:51:07" (1/1) ... [2019-09-10 02:51:07,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e135cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:07, skipping insertion in model container [2019-09-10 02:51:07,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:51:07" (1/1) ... [2019-09-10 02:51:07,120 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:51:07,192 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:51:07,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:51:07,636 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:51:07,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:51:07,851 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:51:07,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:07 WrapperNode [2019-09-10 02:51:07,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:51:07,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:51:07,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:51:07,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:51:07,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:07" (1/1) ... [2019-09-10 02:51:07,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:07" (1/1) ... [2019-09-10 02:51:07,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:07" (1/1) ... [2019-09-10 02:51:07,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:07" (1/1) ... [2019-09-10 02:51:07,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:07" (1/1) ... [2019-09-10 02:51:07,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:07" (1/1) ... [2019-09-10 02:51:07,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:07" (1/1) ... [2019-09-10 02:51:07,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:51:07,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:51:07,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:51:07,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:51:07,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:07" (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 [2019-09-10 02:51:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:51:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:51:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:51:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:51:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:51:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:51:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:51:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:51:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:51:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:51:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:51:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:51:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:51:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:51:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:51:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-09-10 02:51:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:51:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:51:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:51:08,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:51:08,019 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:51:08,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:51:08,019 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:51:08,019 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:51:08,019 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:51:08,020 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:51:08,020 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:51:08,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:51:08,021 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:51:08,021 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:51:08,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:51:08,021 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:51:08,022 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:51:08,022 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:51:08,022 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:51:08,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:51:08,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-10 02:51:08,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-10 02:51:08,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-10 02:51:08,023 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:51:08,023 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:51:08,023 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:51:08,023 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:51:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:51:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:51:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:51:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:51:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:51:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:51:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:51:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:51:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:51:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:51:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:51:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:51:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:51:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:51:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:51:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:51:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:51:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:51:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:51:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:51:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:51:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:51:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:51:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:51:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:51:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:51:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:51:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:51:08,029 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:51:08,029 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:51:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:51:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:51:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:51:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:51:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:51:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:51:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-10 02:51:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-10 02:51:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:51:08,032 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:51:08,032 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:51:08,032 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:51:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:51:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-09-10 02:51:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:51:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:51:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:51:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-10 02:51:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:51:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:51:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:51:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:51:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:51:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:51:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:51:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:51:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:51:09,101 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:51:09,102 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:51:09,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:51:09 BoogieIcfgContainer [2019-09-10 02:51:09,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:51:09,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:51:09,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:51:09,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:51:09,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:51:07" (1/3) ... [2019-09-10 02:51:09,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a245bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:51:09, skipping insertion in model container [2019-09-10 02:51:09,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:07" (2/3) ... [2019-09-10 02:51:09,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a245bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:51:09, skipping insertion in model container [2019-09-10 02:51:09,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:51:09" (3/3) ... [2019-09-10 02:51:09,114 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product48.cil.c [2019-09-10 02:51:09,125 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:51:09,136 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:51:09,154 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:51:09,193 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:51:09,193 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:51:09,194 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:51:09,194 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:51:09,194 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:51:09,194 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:51:09,195 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:51:09,195 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:51:09,217 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2019-09-10 02:51:09,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 02:51:09,231 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:09,233 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:09,235 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:09,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:09,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1391539258, now seen corresponding path program 1 times [2019-09-10 02:51:09,243 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:09,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:09,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:09,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:09,296 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:09,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:09,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:09,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:51:09,613 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:09,618 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:51:09,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:51:09,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:51:09,635 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 2 states. [2019-09-10 02:51:09,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:09,663 INFO L93 Difference]: Finished difference Result 164 states and 192 transitions. [2019-09-10 02:51:09,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:51:09,665 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-10 02:51:09,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:09,679 INFO L225 Difference]: With dead ends: 164 [2019-09-10 02:51:09,679 INFO L226 Difference]: Without dead ends: 153 [2019-09-10 02:51:09,681 INFO L628 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 [2019-09-10 02:51:09,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-09-10 02:51:09,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-09-10 02:51:09,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-09-10 02:51:09,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 180 transitions. [2019-09-10 02:51:09,741 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 180 transitions. Word has length 59 [2019-09-10 02:51:09,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:09,741 INFO L475 AbstractCegarLoop]: Abstraction has 153 states and 180 transitions. [2019-09-10 02:51:09,742 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:51:09,742 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 180 transitions. [2019-09-10 02:51:09,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 02:51:09,750 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:09,750 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:09,751 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:09,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:09,752 INFO L82 PathProgramCache]: Analyzing trace with hash 404948371, now seen corresponding path program 1 times [2019-09-10 02:51:09,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:09,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:09,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:09,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:09,755 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:09,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:09,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:51:09,907 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:09,910 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:51:09,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:51:09,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:51:09,912 INFO L87 Difference]: Start difference. First operand 153 states and 180 transitions. Second operand 3 states. [2019-09-10 02:51:09,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:09,936 INFO L93 Difference]: Finished difference Result 144 states and 168 transitions. [2019-09-10 02:51:09,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:51:09,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-10 02:51:09,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:09,940 INFO L225 Difference]: With dead ends: 144 [2019-09-10 02:51:09,940 INFO L226 Difference]: Without dead ends: 144 [2019-09-10 02:51:09,941 INFO L628 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 [2019-09-10 02:51:09,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-09-10 02:51:09,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-09-10 02:51:09,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-09-10 02:51:09,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2019-09-10 02:51:09,958 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 60 [2019-09-10 02:51:09,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:09,959 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2019-09-10 02:51:09,959 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:51:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2019-09-10 02:51:09,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-10 02:51:09,962 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:09,962 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:09,963 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:09,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:09,963 INFO L82 PathProgramCache]: Analyzing trace with hash 539093391, now seen corresponding path program 1 times [2019-09-10 02:51:09,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:09,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:09,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:09,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:09,965 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:10,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:10,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:10,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:51:10,151 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:10,152 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:51:10,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:51:10,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:51:10,153 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 7 states. [2019-09-10 02:51:10,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:10,830 INFO L93 Difference]: Finished difference Result 316 states and 380 transitions. [2019-09-10 02:51:10,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:51:10,830 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-10 02:51:10,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:10,837 INFO L225 Difference]: With dead ends: 316 [2019-09-10 02:51:10,838 INFO L226 Difference]: Without dead ends: 316 [2019-09-10 02:51:10,841 INFO L628 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 [2019-09-10 02:51:10,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2019-09-10 02:51:10,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 304. [2019-09-10 02:51:10,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2019-09-10 02:51:10,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 368 transitions. [2019-09-10 02:51:10,911 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 368 transitions. Word has length 65 [2019-09-10 02:51:10,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:10,912 INFO L475 AbstractCegarLoop]: Abstraction has 304 states and 368 transitions. [2019-09-10 02:51:10,915 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:51:10,916 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 368 transitions. [2019-09-10 02:51:10,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 02:51:10,922 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:10,922 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:10,922 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:10,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:10,923 INFO L82 PathProgramCache]: Analyzing trace with hash -652418830, now seen corresponding path program 1 times [2019-09-10 02:51:10,927 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:10,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:10,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:10,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:10,928 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:11,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 02:51:11,050 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:11,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:51:11,051 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:11,051 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:51:11,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:51:11,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:51:11,052 INFO L87 Difference]: Start difference. First operand 304 states and 368 transitions. Second operand 7 states. [2019-09-10 02:51:11,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:11,894 INFO L93 Difference]: Finished difference Result 508 states and 630 transitions. [2019-09-10 02:51:11,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:51:11,895 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2019-09-10 02:51:11,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:11,901 INFO L225 Difference]: With dead ends: 508 [2019-09-10 02:51:11,901 INFO L226 Difference]: Without dead ends: 508 [2019-09-10 02:51:11,902 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:51:11,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2019-09-10 02:51:11,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 454. [2019-09-10 02:51:11,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2019-09-10 02:51:11,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 541 transitions. [2019-09-10 02:51:11,977 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 541 transitions. Word has length 70 [2019-09-10 02:51:11,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:11,978 INFO L475 AbstractCegarLoop]: Abstraction has 454 states and 541 transitions. [2019-09-10 02:51:11,978 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:51:11,978 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 541 transitions. [2019-09-10 02:51:11,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 02:51:11,986 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:11,987 INFO L399 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, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:11,987 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:11,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:11,990 INFO L82 PathProgramCache]: Analyzing trace with hash -918633805, now seen corresponding path program 1 times [2019-09-10 02:51:11,990 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:11,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:11,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:11,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:11,991 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:12,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:12,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:51:12,121 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:12,122 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:51:12,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:51:12,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:51:12,123 INFO L87 Difference]: Start difference. First operand 454 states and 541 transitions. Second operand 4 states. [2019-09-10 02:51:12,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:12,411 INFO L93 Difference]: Finished difference Result 1224 states and 1527 transitions. [2019-09-10 02:51:12,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:51:12,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2019-09-10 02:51:12,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:12,420 INFO L225 Difference]: With dead ends: 1224 [2019-09-10 02:51:12,420 INFO L226 Difference]: Without dead ends: 1224 [2019-09-10 02:51:12,421 INFO L628 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 [2019-09-10 02:51:12,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2019-09-10 02:51:12,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1198. [2019-09-10 02:51:12,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1198 states. [2019-09-10 02:51:12,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1479 transitions. [2019-09-10 02:51:12,484 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1479 transitions. Word has length 108 [2019-09-10 02:51:12,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:12,485 INFO L475 AbstractCegarLoop]: Abstraction has 1198 states and 1479 transitions. [2019-09-10 02:51:12,485 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:51:12,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1479 transitions. [2019-09-10 02:51:12,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 02:51:12,489 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:12,489 INFO L399 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, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:12,490 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:12,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:12,490 INFO L82 PathProgramCache]: Analyzing trace with hash -678093676, now seen corresponding path program 1 times [2019-09-10 02:51:12,490 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:12,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:12,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:12,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:12,492 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:12,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:12,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:12,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:51:12,581 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:12,582 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:51:12,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:51:12,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:51:12,582 INFO L87 Difference]: Start difference. First operand 1198 states and 1479 transitions. Second operand 6 states. [2019-09-10 02:51:12,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:12,618 INFO L93 Difference]: Finished difference Result 1240 states and 1531 transitions. [2019-09-10 02:51:12,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:51:12,619 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2019-09-10 02:51:12,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:12,627 INFO L225 Difference]: With dead ends: 1240 [2019-09-10 02:51:12,627 INFO L226 Difference]: Without dead ends: 1240 [2019-09-10 02:51:12,627 INFO L628 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 [2019-09-10 02:51:12,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2019-09-10 02:51:12,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1228. [2019-09-10 02:51:12,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1228 states. [2019-09-10 02:51:12,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1511 transitions. [2019-09-10 02:51:12,678 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1511 transitions. Word has length 108 [2019-09-10 02:51:12,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:12,679 INFO L475 AbstractCegarLoop]: Abstraction has 1228 states and 1511 transitions. [2019-09-10 02:51:12,679 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:51:12,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1511 transitions. [2019-09-10 02:51:12,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 02:51:12,682 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:12,683 INFO L399 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, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:12,683 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:12,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:12,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1250179026, now seen corresponding path program 1 times [2019-09-10 02:51:12,684 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:12,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:12,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:12,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:12,685 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:12,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:12,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:12,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:51:12,878 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:12,879 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:51:12,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:51:12,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:51:12,881 INFO L87 Difference]: Start difference. First operand 1228 states and 1511 transitions. Second operand 8 states. [2019-09-10 02:51:12,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:12,926 INFO L93 Difference]: Finished difference Result 1017 states and 1238 transitions. [2019-09-10 02:51:12,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:51:12,927 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2019-09-10 02:51:12,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:12,934 INFO L225 Difference]: With dead ends: 1017 [2019-09-10 02:51:12,934 INFO L226 Difference]: Without dead ends: 1017 [2019-09-10 02:51:12,934 INFO L628 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 [2019-09-10 02:51:12,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2019-09-10 02:51:12,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 1017. [2019-09-10 02:51:12,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1017 states. [2019-09-10 02:51:12,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1238 transitions. [2019-09-10 02:51:12,993 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1238 transitions. Word has length 108 [2019-09-10 02:51:12,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:12,994 INFO L475 AbstractCegarLoop]: Abstraction has 1017 states and 1238 transitions. [2019-09-10 02:51:12,994 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:51:12,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1238 transitions. [2019-09-10 02:51:13,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-10 02:51:13,000 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:13,000 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:13,001 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:13,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:13,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1890897259, now seen corresponding path program 1 times [2019-09-10 02:51:13,001 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:13,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:13,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:13,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:13,003 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:13,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:13,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:13,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-10 02:51:13,255 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:13,257 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 02:51:13,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 02:51:13,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-09-10 02:51:13,258 INFO L87 Difference]: Start difference. First operand 1017 states and 1238 transitions. Second operand 11 states. [2019-09-10 02:51:14,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:14,490 INFO L93 Difference]: Finished difference Result 1865 states and 2306 transitions. [2019-09-10 02:51:14,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:51:14,490 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 112 [2019-09-10 02:51:14,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:14,503 INFO L225 Difference]: With dead ends: 1865 [2019-09-10 02:51:14,504 INFO L226 Difference]: Without dead ends: 1865 [2019-09-10 02:51:14,505 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2019-09-10 02:51:14,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2019-09-10 02:51:14,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 1638. [2019-09-10 02:51:14,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1638 states. [2019-09-10 02:51:14,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 2004 transitions. [2019-09-10 02:51:14,585 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 2004 transitions. Word has length 112 [2019-09-10 02:51:14,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:14,586 INFO L475 AbstractCegarLoop]: Abstraction has 1638 states and 2004 transitions. [2019-09-10 02:51:14,586 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 02:51:14,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 2004 transitions. [2019-09-10 02:51:14,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-09-10 02:51:14,591 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:14,591 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-10 02:51:14,592 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:14,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:14,592 INFO L82 PathProgramCache]: Analyzing trace with hash 828062466, now seen corresponding path program 1 times [2019-09-10 02:51:14,592 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:14,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:14,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:14,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:14,593 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:14,735 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:51:14,735 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:14,735 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:51:14,751 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2019-09-10 02:51:14,755 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [92], [108], [112], [113], [114], [117], [119], [125], [129], [132], [133], [134], [143], [147], [151], [154], [157], [159], [165], [167], [173], [179], [196], [198], [203], [206], [207], [209], [214], [216], [217], [218], [219], [223], [226], [230], [236], [263], [264], [267], [271], [276], [280], [281], [284], [285], [286], [288], [289], [290], [292], [295], [297], [300], [303], [312], [314], [315], [318], [320], [323], [330], [333], [334], [335], [359], [361], [362], [380], [381], [431], [432], [442], [450], [451], [452], [453], [454], [455], [456], [457], [458], [492], [493], [496], [497], [498], [499], [500], [501], [508], [509], [512], [513], [514], [515], [516], [517], [518], [519], [520], [521], [522], [523], [524], [525], [530], [531], [532], [533], [534], [535], [536], [538], [539], [540], [541], [544], [545], [548], [549], [550], [552], [553], [558], [559], [560] [2019-09-10 02:51:14,823 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:51:14,824 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:51:14,899 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:51:14,901 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-10 02:51:14,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:14,906 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:51:14,972 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:51:14,972 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:51:14,985 INFO L420 sIntCurrentIteration]: We unified 171 AI predicates to 171 [2019-09-10 02:51:14,985 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:51:14,988 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:51:14,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-10 02:51:14,989 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:14,992 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:51:14,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:51:14,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:51:14,993 INFO L87 Difference]: Start difference. First operand 1638 states and 2004 transitions. Second operand 2 states. [2019-09-10 02:51:14,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:14,994 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:51:14,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:51:14,994 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 172 [2019-09-10 02:51:14,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:14,994 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:51:14,994 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:51:14,995 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:51:14,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:51:14,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:51:14,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:51:14,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:51:14,997 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 172 [2019-09-10 02:51:14,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:14,997 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:51:14,997 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:51:14,997 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:51:14,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:51:15,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:51:15 BoogieIcfgContainer [2019-09-10 02:51:15,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:51:15,009 INFO L168 Benchmark]: Toolchain (without parser) took 7906.60 ms. Allocated memory was 134.7 MB in the beginning and 305.1 MB in the end (delta: 170.4 MB). Free memory was 88.3 MB in the beginning and 117.5 MB in the end (delta: -29.2 MB). Peak memory consumption was 141.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:51:15,011 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:51:15,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.40 ms. Allocated memory was 134.7 MB in the beginning and 201.3 MB in the end (delta: 66.6 MB). Free memory was 88.1 MB in the beginning and 163.6 MB in the end (delta: -75.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:51:15,014 INFO L168 Benchmark]: Boogie Preprocessor took 100.81 ms. Allocated memory is still 201.3 MB. Free memory was 163.6 MB in the beginning and 159.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:51:15,017 INFO L168 Benchmark]: RCFGBuilder took 1150.87 ms. Allocated memory was 201.3 MB in the beginning and 229.6 MB in the end (delta: 28.3 MB). Free memory was 159.5 MB in the beginning and 188.2 MB in the end (delta: -28.7 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:51:15,023 INFO L168 Benchmark]: TraceAbstraction took 5899.22 ms. Allocated memory was 229.6 MB in the beginning and 305.1 MB in the end (delta: 75.5 MB). Free memory was 188.2 MB in the beginning and 117.5 MB in the end (delta: 70.7 MB). Peak memory consumption was 146.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:51:15,032 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 134.7 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.40 ms. Allocated memory was 134.7 MB in the beginning and 201.3 MB in the end (delta: 66.6 MB). Free memory was 88.1 MB in the beginning and 163.6 MB in the end (delta: -75.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.81 ms. Allocated memory is still 201.3 MB. Free memory was 163.6 MB in the beginning and 159.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1150.87 ms. Allocated memory was 201.3 MB in the beginning and 229.6 MB in the end (delta: 28.3 MB). Free memory was 159.5 MB in the beginning and 188.2 MB in the end (delta: -28.7 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5899.22 ms. Allocated memory was 229.6 MB in the beginning and 305.1 MB in the end (delta: 75.5 MB). Free memory was 188.2 MB in the beginning and 117.5 MB in the end (delta: 70.7 MB). Peak memory consumption was 146.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 410]: 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 43 procedures, 252 locations, 1 error locations. SAFE Result, 5.8s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1613 SDtfs, 1346 SDslu, 3626 SDs, 0 SdLazy, 1705 SolverSat, 435 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 259 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1638occurred in iteration=8, 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, 0.8128654970760234 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 331 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 862 NumberOfCodeBlocks, 862 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 853 ConstructedInterpolants, 0 QuantifiedInterpolants, 152687 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 68/75 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...