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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:47:55,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:47:55,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:47:55,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:47:55,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:47:55,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:47:55,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:47:55,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:47:55,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:47:55,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:47:55,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:47:55,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:47:55,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:47:55,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:47:55,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:47:55,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:47:55,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:47:55,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:47:55,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:47:55,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:47:55,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:47:55,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:47:55,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:47:55,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:47:55,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:47:55,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:47:55,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:47:55,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:47:55,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:47:55,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:47:55,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:47:55,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:47:55,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:47:55,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:47:55,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:47:55,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:47:55,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:47:55,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:47:55,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:47:55,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:47:55,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:47:55,312 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 02:47:55,327 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:47:55,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:47:55,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:47:55,328 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:47:55,328 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:47:55,329 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:47:55,329 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:47:55,329 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:47:55,329 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:47:55,329 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:47:55,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:47:55,332 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:47:55,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:47:55,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:47:55,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:47:55,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:47:55,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:47:55,333 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:47:55,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:47:55,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:47:55,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:47:55,334 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:47:55,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:47:55,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:47:55,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:47:55,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:47:55,336 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:47:55,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:47:55,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:47:55,336 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:47:55,387 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:47:55,399 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:47:55,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:47:55,404 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:47:55,405 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:47:55,405 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2019-09-10 02:47:55,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1db4a8d0/5a25c0384af74d0aa62522047d93b487/FLAG04229755e [2019-09-10 02:47:56,035 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:47:56,036 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2019-09-10 02:47:56,055 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1db4a8d0/5a25c0384af74d0aa62522047d93b487/FLAG04229755e [2019-09-10 02:47:56,302 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1db4a8d0/5a25c0384af74d0aa62522047d93b487 [2019-09-10 02:47:56,311 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:47:56,312 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:47:56,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:56,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:47:56,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:47:56,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:56" (1/1) ... [2019-09-10 02:47:56,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2412203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:56, skipping insertion in model container [2019-09-10 02:47:56,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:56" (1/1) ... [2019-09-10 02:47:56,328 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:47:56,381 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:47:56,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:56,853 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:47:56,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:56,995 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:47:56,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:56 WrapperNode [2019-09-10 02:47:56,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:56,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:47:56,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:47:56,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:47:57,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:56" (1/1) ... [2019-09-10 02:47:57,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:56" (1/1) ... [2019-09-10 02:47:57,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:56" (1/1) ... [2019-09-10 02:47:57,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:56" (1/1) ... [2019-09-10 02:47:57,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:56" (1/1) ... [2019-09-10 02:47:57,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:56" (1/1) ... [2019-09-10 02:47:57,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:56" (1/1) ... [2019-09-10 02:47:57,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:47:57,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:47:57,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:47:57,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:47:57,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:56" (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 02:47:57,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:47:57,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:47:57,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:57,173 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:47:57,173 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:47:57,173 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:47:57,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:47:57,173 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:47:57,174 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:47:57,174 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:47:57,174 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:47:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:47:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:47:57,176 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-09-10 02:47:57,176 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:47:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:47:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:47:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:47:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:47:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:47:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:47:57,178 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:47:57,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:47:57,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:57,179 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:47:57,179 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:47:57,179 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:47:57,179 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:47:57,179 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:47:57,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:57,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:57,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:57,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:47:57,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:47:57,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:47:57,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:47:57,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:47:57,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:47:57,181 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:47:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:47:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:47:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:47:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:47:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:47:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:47:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:47:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:47:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:47:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:47:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:47:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:47:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:47:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:47:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:47:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:47:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:47:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:47:57,185 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:47:57,185 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:47:57,185 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-09-10 02:47:57,185 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:47:57,186 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:47:57,186 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:47:57,186 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:47:57,186 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:47:57,186 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:47:57,187 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:47:57,187 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:47:57,187 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:47:57,187 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:47:57,187 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:47:57,187 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:47:57,188 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:47:57,188 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:47:57,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:57,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:47:57,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:47:57,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:47:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:47:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:47:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:47:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:47:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:47:57,193 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:47:57,193 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:47:57,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:47:57,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:47:57,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:47:58,388 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:47:58,388 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:47:58,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:58 BoogieIcfgContainer [2019-09-10 02:47:58,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:47:58,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:47:58,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:47:58,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:47:58,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:47:56" (1/3) ... [2019-09-10 02:47:58,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22db06a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:58, skipping insertion in model container [2019-09-10 02:47:58,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:56" (2/3) ... [2019-09-10 02:47:58,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22db06a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:58, skipping insertion in model container [2019-09-10 02:47:58,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:58" (3/3) ... [2019-09-10 02:47:58,398 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2019-09-10 02:47:58,408 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:47:58,417 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:47:58,435 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:47:58,460 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:47:58,460 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:47:58,460 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:47:58,460 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:47:58,460 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:47:58,461 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:47:58,461 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:47:58,461 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:47:58,480 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2019-09-10 02:47:58,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:47:58,493 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:58,494 INFO L399 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] [2019-09-10 02:47:58,497 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:58,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:58,503 INFO L82 PathProgramCache]: Analyzing trace with hash 2058113087, now seen corresponding path program 1 times [2019-09-10 02:47:58,506 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:58,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:58,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:58,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:58,556 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:58,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:58,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:58,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:47:58,864 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:58,870 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:47:58,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:47:58,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:47:58,890 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 2 states. [2019-09-10 02:47:58,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:58,945 INFO L93 Difference]: Finished difference Result 137 states and 159 transitions. [2019-09-10 02:47:58,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:47:58,953 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:47:58,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:58,972 INFO L225 Difference]: With dead ends: 137 [2019-09-10 02:47:58,981 INFO L226 Difference]: Without dead ends: 126 [2019-09-10 02:47:58,987 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 02:47:59,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-09-10 02:47:59,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2019-09-10 02:47:59,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-09-10 02:47:59,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2019-09-10 02:47:59,092 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 46 [2019-09-10 02:47:59,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:59,093 INFO L475 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2019-09-10 02:47:59,093 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:47:59,093 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2019-09-10 02:47:59,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:47:59,098 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:59,099 INFO L399 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] [2019-09-10 02:47:59,099 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:59,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:59,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1232914971, now seen corresponding path program 1 times [2019-09-10 02:47:59,100 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:59,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:59,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:59,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:59,103 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:59,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:59,273 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:59,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:47:59,273 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:59,276 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:47:59,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:47:59,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:47:59,277 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand 3 states. [2019-09-10 02:47:59,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:59,296 INFO L93 Difference]: Finished difference Result 117 states and 135 transitions. [2019-09-10 02:47:59,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:47:59,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:47:59,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:59,300 INFO L225 Difference]: With dead ends: 117 [2019-09-10 02:47:59,300 INFO L226 Difference]: Without dead ends: 117 [2019-09-10 02:47:59,301 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 02:47:59,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-09-10 02:47:59,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2019-09-10 02:47:59,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-09-10 02:47:59,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2019-09-10 02:47:59,313 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 47 [2019-09-10 02:47:59,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:59,313 INFO L475 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2019-09-10 02:47:59,313 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:47:59,314 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2019-09-10 02:47:59,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:47:59,316 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:59,316 INFO L399 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] [2019-09-10 02:47:59,316 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:59,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:59,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1264843506, now seen corresponding path program 1 times [2019-09-10 02:47:59,317 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:59,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:59,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:59,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:59,319 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:59,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:59,450 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:59,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:47:59,451 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:59,452 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:47:59,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:47:59,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:59,453 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand 7 states. [2019-09-10 02:47:59,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:59,950 INFO L93 Difference]: Finished difference Result 260 states and 308 transitions. [2019-09-10 02:47:59,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:47:59,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-10 02:47:59,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:59,955 INFO L225 Difference]: With dead ends: 260 [2019-09-10 02:47:59,955 INFO L226 Difference]: Without dead ends: 260 [2019-09-10 02:47:59,956 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 02:47:59,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2019-09-10 02:47:59,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 240. [2019-09-10 02:47:59,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2019-09-10 02:47:59,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 286 transitions. [2019-09-10 02:47:59,984 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 286 transitions. Word has length 51 [2019-09-10 02:47:59,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:59,984 INFO L475 AbstractCegarLoop]: Abstraction has 240 states and 286 transitions. [2019-09-10 02:47:59,984 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:47:59,984 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 286 transitions. [2019-09-10 02:47:59,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 02:47:59,987 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:59,987 INFO L399 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] [2019-09-10 02:47:59,988 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:59,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:59,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1557328557, now seen corresponding path program 1 times [2019-09-10 02:47:59,988 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:59,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:59,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:59,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:59,990 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:00,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:00,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:00,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:00,155 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:00,156 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:00,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:00,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:00,156 INFO L87 Difference]: Start difference. First operand 240 states and 286 transitions. Second operand 6 states. [2019-09-10 02:48:00,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:00,345 INFO L93 Difference]: Finished difference Result 441 states and 528 transitions. [2019-09-10 02:48:00,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:00,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-09-10 02:48:00,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:00,352 INFO L225 Difference]: With dead ends: 441 [2019-09-10 02:48:00,352 INFO L226 Difference]: Without dead ends: 441 [2019-09-10 02:48:00,353 INFO L628 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 [2019-09-10 02:48:00,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2019-09-10 02:48:00,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 435. [2019-09-10 02:48:00,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2019-09-10 02:48:00,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 522 transitions. [2019-09-10 02:48:00,407 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 522 transitions. Word has length 57 [2019-09-10 02:48:00,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:00,407 INFO L475 AbstractCegarLoop]: Abstraction has 435 states and 522 transitions. [2019-09-10 02:48:00,407 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:00,408 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 522 transitions. [2019-09-10 02:48:00,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-10 02:48:00,411 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:00,411 INFO L399 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] [2019-09-10 02:48:00,411 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:00,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:00,412 INFO L82 PathProgramCache]: Analyzing trace with hash 2005186865, now seen corresponding path program 1 times [2019-09-10 02:48:00,412 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:00,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:00,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:00,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:00,413 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:00,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:00,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:00,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:00,511 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:00,511 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:00,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:00,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:00,512 INFO L87 Difference]: Start difference. First operand 435 states and 522 transitions. Second operand 7 states. [2019-09-10 02:48:01,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:01,149 INFO L93 Difference]: Finished difference Result 717 states and 902 transitions. [2019-09-10 02:48:01,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:48:01,149 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-09-10 02:48:01,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:01,155 INFO L225 Difference]: With dead ends: 717 [2019-09-10 02:48:01,156 INFO L226 Difference]: Without dead ends: 717 [2019-09-10 02:48:01,156 INFO L628 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 [2019-09-10 02:48:01,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-09-10 02:48:01,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 633. [2019-09-10 02:48:01,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2019-09-10 02:48:01,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 761 transitions. [2019-09-10 02:48:01,196 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 761 transitions. Word has length 61 [2019-09-10 02:48:01,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:01,196 INFO L475 AbstractCegarLoop]: Abstraction has 633 states and 761 transitions. [2019-09-10 02:48:01,196 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:01,196 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 761 transitions. [2019-09-10 02:48:01,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 02:48:01,201 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:01,201 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] [2019-09-10 02:48:01,202 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:01,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:01,202 INFO L82 PathProgramCache]: Analyzing trace with hash 90269024, now seen corresponding path program 1 times [2019-09-10 02:48:01,202 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:01,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:01,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:01,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:01,204 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:01,326 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 02:48:01,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:01,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:48:01,326 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:01,327 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:48:01,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:48:01,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:48:01,328 INFO L87 Difference]: Start difference. First operand 633 states and 761 transitions. Second operand 4 states. [2019-09-10 02:48:01,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:01,567 INFO L93 Difference]: Finished difference Result 1775 states and 2239 transitions. [2019-09-10 02:48:01,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:48:01,567 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 93 [2019-09-10 02:48:01,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:01,579 INFO L225 Difference]: With dead ends: 1775 [2019-09-10 02:48:01,579 INFO L226 Difference]: Without dead ends: 1775 [2019-09-10 02:48:01,580 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 02:48:01,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2019-09-10 02:48:01,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1741. [2019-09-10 02:48:01,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1741 states. [2019-09-10 02:48:01,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 2165 transitions. [2019-09-10 02:48:01,666 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 2165 transitions. Word has length 93 [2019-09-10 02:48:01,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:01,666 INFO L475 AbstractCegarLoop]: Abstraction has 1741 states and 2165 transitions. [2019-09-10 02:48:01,666 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:48:01,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 2165 transitions. [2019-09-10 02:48:01,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 02:48:01,671 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:01,671 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] [2019-09-10 02:48:01,671 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:01,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:01,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1880670433, now seen corresponding path program 1 times [2019-09-10 02:48:01,672 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:01,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:01,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:01,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:01,673 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:01,776 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 02:48:01,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:01,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:01,777 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:01,777 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:01,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:01,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:01,778 INFO L87 Difference]: Start difference. First operand 1741 states and 2165 transitions. Second operand 6 states. [2019-09-10 02:48:01,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:01,821 INFO L93 Difference]: Finished difference Result 1825 states and 2269 transitions. [2019-09-10 02:48:01,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:48:01,822 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2019-09-10 02:48:01,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:01,835 INFO L225 Difference]: With dead ends: 1825 [2019-09-10 02:48:01,835 INFO L226 Difference]: Without dead ends: 1825 [2019-09-10 02:48:01,835 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 02:48:01,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2019-09-10 02:48:01,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1801. [2019-09-10 02:48:01,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1801 states. [2019-09-10 02:48:01,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2229 transitions. [2019-09-10 02:48:01,920 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2229 transitions. Word has length 93 [2019-09-10 02:48:01,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:01,920 INFO L475 AbstractCegarLoop]: Abstraction has 1801 states and 2229 transitions. [2019-09-10 02:48:01,920 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:01,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2229 transitions. [2019-09-10 02:48:01,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 02:48:01,925 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:01,926 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] [2019-09-10 02:48:01,926 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:01,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:01,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1516903585, now seen corresponding path program 1 times [2019-09-10 02:48:01,926 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:01,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:01,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:01,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:01,928 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:02,042 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 02:48:02,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:02,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:48:02,043 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:02,044 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:48:02,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:48:02,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:48:02,045 INFO L87 Difference]: Start difference. First operand 1801 states and 2229 transitions. Second operand 8 states. [2019-09-10 02:48:02,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:02,089 INFO L93 Difference]: Finished difference Result 1463 states and 1779 transitions. [2019-09-10 02:48:02,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:02,090 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2019-09-10 02:48:02,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:02,099 INFO L225 Difference]: With dead ends: 1463 [2019-09-10 02:48:02,100 INFO L226 Difference]: Without dead ends: 1463 [2019-09-10 02:48:02,100 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 02:48:02,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2019-09-10 02:48:02,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1463. [2019-09-10 02:48:02,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1463 states. [2019-09-10 02:48:02,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1779 transitions. [2019-09-10 02:48:02,164 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1779 transitions. Word has length 93 [2019-09-10 02:48:02,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:02,164 INFO L475 AbstractCegarLoop]: Abstraction has 1463 states and 1779 transitions. [2019-09-10 02:48:02,164 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:48:02,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1779 transitions. [2019-09-10 02:48:02,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-09-10 02:48:02,168 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:02,168 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] [2019-09-10 02:48:02,168 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:02,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:02,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1451570632, now seen corresponding path program 1 times [2019-09-10 02:48:02,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:02,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:02,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:02,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:02,170 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:02,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 02:48:02,326 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:48:02,327 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:48:02,328 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 98 with the following transitions: [2019-09-10 02:48:02,336 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [92], [108], [112], [113], [114], [117], [119], [122], [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], [282], [305], [307], [308], [326], [327], [377], [378], [383], [385], [388], [392], [394], [397], [399], [402], [415], [416], [417], [418], [419], [420], [421], [422], [423], [457], [458], [459], [460], [465], [466], [467], [468], [471], [475], [476], [477], [478], [479], [480], [483], [484], [485], [493], [495], [496], [501], [502], [503], [505], [506], [507], [508], [509] [2019-09-10 02:48:02,388 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:48:02,388 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:48:02,462 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:48:02,464 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. [2019-09-10 02:48:02,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:02,469 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:48:02,511 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:48:02,511 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:48:02,515 INFO L420 sIntCurrentIteration]: We unified 96 AI predicates to 96 [2019-09-10 02:48:02,515 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:48:02,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:48:02,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-10 02:48:02,516 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:02,517 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:48:02,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:48:02,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:02,517 INFO L87 Difference]: Start difference. First operand 1463 states and 1779 transitions. Second operand 2 states. [2019-09-10 02:48:02,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:02,518 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:48:02,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:48:02,518 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 97 [2019-09-10 02:48:02,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:02,519 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:48:02,519 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:48:02,519 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 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 02:48:02,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:48:02,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:48:02,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:48:02,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:48:02,520 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2019-09-10 02:48:02,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:02,520 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:48:02,520 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:48:02,521 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:48:02,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:48:02,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:48:02 BoogieIcfgContainer [2019-09-10 02:48:02,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:48:02,529 INFO L168 Benchmark]: Toolchain (without parser) took 6215.24 ms. Allocated memory was 134.2 MB in the beginning and 319.3 MB in the end (delta: 185.1 MB). Free memory was 88.9 MB in the beginning and 195.4 MB in the end (delta: -106.5 MB). Peak memory consumption was 78.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:02,530 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-09-10 02:48:02,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.27 ms. Allocated memory was 134.2 MB in the beginning and 199.8 MB in the end (delta: 65.5 MB). Free memory was 88.7 MB in the beginning and 164.5 MB in the end (delta: -75.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:02,532 INFO L168 Benchmark]: Boogie Preprocessor took 111.42 ms. Allocated memory is still 199.8 MB. Free memory was 164.5 MB in the beginning and 160.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:02,533 INFO L168 Benchmark]: RCFGBuilder took 1281.40 ms. Allocated memory was 199.8 MB in the beginning and 226.5 MB in the end (delta: 26.7 MB). Free memory was 160.3 MB in the beginning and 194.8 MB in the end (delta: -34.5 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:02,534 INFO L168 Benchmark]: TraceAbstraction took 4135.26 ms. Allocated memory was 226.5 MB in the beginning and 319.3 MB in the end (delta: 92.8 MB). Free memory was 194.8 MB in the beginning and 195.4 MB in the end (delta: -659.1 kB). Peak memory consumption was 92.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:02,538 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 683.27 ms. Allocated memory was 134.2 MB in the beginning and 199.8 MB in the end (delta: 65.5 MB). Free memory was 88.7 MB in the beginning and 164.5 MB in the end (delta: -75.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.42 ms. Allocated memory is still 199.8 MB. Free memory was 164.5 MB in the beginning and 160.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1281.40 ms. Allocated memory was 199.8 MB in the beginning and 226.5 MB in the end (delta: 26.7 MB). Free memory was 160.3 MB in the beginning and 194.8 MB in the end (delta: -34.5 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4135.26 ms. Allocated memory was 226.5 MB in the beginning and 319.3 MB in the end (delta: 92.8 MB). Free memory was 194.8 MB in the beginning and 195.4 MB in the end (delta: -659.1 kB). Peak memory consumption was 92.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 405]: 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 39 procedures, 228 locations, 1 error locations. SAFE Result, 4.0s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1251 SDtfs, 697 SDslu, 2950 SDs, 0 SdLazy, 803 SolverSat, 116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1801occurred 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, 1.1145833333333333 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 168 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 638 NumberOfCodeBlocks, 638 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 629 ConstructedInterpolants, 0 QuantifiedInterpolants, 75807 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...