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_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:35,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:35,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:35,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:35,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:35,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:35,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:35,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:35,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:35,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:35,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:35,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:35,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:35,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:35,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:35,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:35,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:35,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:35,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:35,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:35,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:35,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:35,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:35,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:35,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:35,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:35,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:35,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:35,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:35,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:35,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:35,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:35,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:35,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:35,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:35,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:35,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:35,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:35,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:35,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:35,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:35,429 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 [2019-09-20 13:31:35,444 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:35,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:35,445 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:35,445 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:35,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:35,446 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:35,446 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:35,446 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:35,446 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:35,447 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:35,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:35,449 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:35,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:35,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:35,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:35,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:35,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:35,450 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:35,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:35,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:35,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:35,450 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:35,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:35,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:35,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:35,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:35,452 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:35,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:35,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:35,453 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:35,501 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:35,514 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:35,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:35,520 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:35,521 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:35,522 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2019-09-20 13:31:35,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8671a9ace/22009e99210e485f997d794e57f7407e/FLAGa51f99c68 [2019-09-20 13:31:36,226 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:36,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2019-09-20 13:31:36,240 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8671a9ace/22009e99210e485f997d794e57f7407e/FLAGa51f99c68 [2019-09-20 13:31:36,427 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8671a9ace/22009e99210e485f997d794e57f7407e [2019-09-20 13:31:36,438 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:36,439 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:36,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:36,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:36,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:36,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:36" (1/1) ... [2019-09-20 13:31:36,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@458d6857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:36, skipping insertion in model container [2019-09-20 13:31:36,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:36" (1/1) ... [2019-09-20 13:31:36,457 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:36,504 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:36,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:36,967 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:37,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:37,132 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:37,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37 WrapperNode [2019-09-20 13:31:37,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:37,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:37,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:37,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:37,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (1/1) ... [2019-09-20 13:31:37,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (1/1) ... [2019-09-20 13:31:37,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (1/1) ... [2019-09-20 13:31:37,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (1/1) ... [2019-09-20 13:31:37,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (1/1) ... [2019-09-20 13:31:37,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (1/1) ... [2019-09-20 13:31:37,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (1/1) ... [2019-09-20 13:31:37,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:37,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:37,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:37,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:37,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (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 [2019-09-20 13:31:37,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:37,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:37,285 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:37,285 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:37,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:37,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:37,286 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:37,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:31:37,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:31:37,287 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:37,288 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:37,288 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:37,288 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:37,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:37,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:37,290 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:37,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:31:37,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:31:37,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:37,290 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:37,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:37,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:37,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:37,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:37,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:37,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:31:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:31:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:31:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:31:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:38,520 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:38,521 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:38,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:38 BoogieIcfgContainer [2019-09-20 13:31:38,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:38,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:38,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:38,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:38,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:36" (1/3) ... [2019-09-20 13:31:38,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab547d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:38, skipping insertion in model container [2019-09-20 13:31:38,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (2/3) ... [2019-09-20 13:31:38,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab547d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:38, skipping insertion in model container [2019-09-20 13:31:38,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:38" (3/3) ... [2019-09-20 13:31:38,534 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2019-09-20 13:31:38,545 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:38,555 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:38,573 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:38,603 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:38,603 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:38,603 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:38,603 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:38,604 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:38,604 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:38,604 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:38,604 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:38,622 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states. [2019-09-20 13:31:38,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:31:38,636 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:38,637 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:38,639 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:38,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:38,646 INFO L82 PathProgramCache]: Analyzing trace with hash 464701397, now seen corresponding path program 1 times [2019-09-20 13:31:38,648 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:38,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:38,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:38,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:38,699 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:38,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:38,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:38,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:39,000 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:39,005 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:39,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:39,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:39,023 INFO L87 Difference]: Start difference. First operand 181 states. Second operand 2 states. [2019-09-20 13:31:39,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:39,060 INFO L93 Difference]: Finished difference Result 149 states and 174 transitions. [2019-09-20 13:31:39,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:39,061 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-20 13:31:39,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:39,078 INFO L225 Difference]: With dead ends: 149 [2019-09-20 13:31:39,078 INFO L226 Difference]: Without dead ends: 138 [2019-09-20 13:31:39,083 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:39,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-09-20 13:31:39,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-09-20 13:31:39,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-09-20 13:31:39,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 162 transitions. [2019-09-20 13:31:39,150 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 162 transitions. Word has length 59 [2019-09-20 13:31:39,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:39,151 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 162 transitions. [2019-09-20 13:31:39,151 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:39,151 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 162 transitions. [2019-09-20 13:31:39,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-20 13:31:39,155 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:39,155 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:39,156 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:39,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:39,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1838047012, now seen corresponding path program 1 times [2019-09-20 13:31:39,156 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:39,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:39,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:39,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:39,159 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:39,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:39,363 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:39,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:39,365 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:39,367 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:39,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:39,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:39,368 INFO L87 Difference]: Start difference. First operand 138 states and 162 transitions. Second operand 3 states. [2019-09-20 13:31:39,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:39,393 INFO L93 Difference]: Finished difference Result 138 states and 161 transitions. [2019-09-20 13:31:39,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:39,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2019-09-20 13:31:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:39,397 INFO L225 Difference]: With dead ends: 138 [2019-09-20 13:31:39,397 INFO L226 Difference]: Without dead ends: 138 [2019-09-20 13:31:39,398 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:39,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-09-20 13:31:39,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-09-20 13:31:39,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-09-20 13:31:39,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 161 transitions. [2019-09-20 13:31:39,412 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 161 transitions. Word has length 64 [2019-09-20 13:31:39,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:39,414 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 161 transitions. [2019-09-20 13:31:39,414 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:39,414 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 161 transitions. [2019-09-20 13:31:39,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-20 13:31:39,417 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:39,417 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:39,418 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:39,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:39,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1442070676, now seen corresponding path program 1 times [2019-09-20 13:31:39,418 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:39,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:39,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:39,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:39,422 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:39,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:39,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:39,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:39,535 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:39,536 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:39,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:39,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:39,538 INFO L87 Difference]: Start difference. First operand 138 states and 161 transitions. Second operand 3 states. [2019-09-20 13:31:39,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:39,563 INFO L93 Difference]: Finished difference Result 129 states and 149 transitions. [2019-09-20 13:31:39,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:39,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2019-09-20 13:31:39,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:39,569 INFO L225 Difference]: With dead ends: 129 [2019-09-20 13:31:39,569 INFO L226 Difference]: Without dead ends: 129 [2019-09-20 13:31:39,569 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:39,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-09-20 13:31:39,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-09-20 13:31:39,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-09-20 13:31:39,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2019-09-20 13:31:39,586 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 73 [2019-09-20 13:31:39,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:39,587 INFO L475 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2019-09-20 13:31:39,587 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:39,587 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2019-09-20 13:31:39,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-20 13:31:39,595 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:39,596 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:39,596 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:39,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:39,597 INFO L82 PathProgramCache]: Analyzing trace with hash -745886990, now seen corresponding path program 1 times [2019-09-20 13:31:39,598 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:39,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:39,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:39,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:39,601 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:39,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:39,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:39,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:31:39,743 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:39,743 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:31:39,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:31:39,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:31:39,744 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 5 states. [2019-09-20 13:31:40,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:40,420 INFO L93 Difference]: Finished difference Result 230 states and 268 transitions. [2019-09-20 13:31:40,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:31:40,420 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2019-09-20 13:31:40,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:40,423 INFO L225 Difference]: With dead ends: 230 [2019-09-20 13:31:40,424 INFO L226 Difference]: Without dead ends: 230 [2019-09-20 13:31:40,424 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:40,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2019-09-20 13:31:40,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 212. [2019-09-20 13:31:40,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-09-20 13:31:40,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 244 transitions. [2019-09-20 13:31:40,459 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 244 transitions. Word has length 77 [2019-09-20 13:31:40,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:40,463 INFO L475 AbstractCegarLoop]: Abstraction has 212 states and 244 transitions. [2019-09-20 13:31:40,463 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:31:40,463 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 244 transitions. [2019-09-20 13:31:40,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-09-20 13:31:40,468 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:40,469 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:40,469 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:40,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:40,470 INFO L82 PathProgramCache]: Analyzing trace with hash -47194942, now seen corresponding path program 1 times [2019-09-20 13:31:40,470 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:40,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:40,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:40,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:40,475 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:40,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:31:40,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:40,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:40,660 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:40,660 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:40,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:40,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:40,662 INFO L87 Difference]: Start difference. First operand 212 states and 244 transitions. Second operand 7 states. [2019-09-20 13:31:41,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:41,359 INFO L93 Difference]: Finished difference Result 229 states and 268 transitions. [2019-09-20 13:31:41,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:31:41,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2019-09-20 13:31:41,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:41,362 INFO L225 Difference]: With dead ends: 229 [2019-09-20 13:31:41,363 INFO L226 Difference]: Without dead ends: 229 [2019-09-20 13:31:41,363 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:31:41,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-09-20 13:31:41,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 211. [2019-09-20 13:31:41,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-09-20 13:31:41,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 241 transitions. [2019-09-20 13:31:41,391 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 241 transitions. Word has length 91 [2019-09-20 13:31:41,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:41,392 INFO L475 AbstractCegarLoop]: Abstraction has 211 states and 241 transitions. [2019-09-20 13:31:41,392 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:41,392 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 241 transitions. [2019-09-20 13:31:41,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-20 13:31:41,394 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:41,394 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:41,395 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:41,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:41,395 INFO L82 PathProgramCache]: Analyzing trace with hash -238329201, now seen corresponding path program 1 times [2019-09-20 13:31:41,396 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:41,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:41,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:41,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:41,401 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:41,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:41,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:41,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:31:41,496 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:41,497 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:31:41,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:31:41,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:31:41,498 INFO L87 Difference]: Start difference. First operand 211 states and 241 transitions. Second operand 6 states. [2019-09-20 13:31:41,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:41,557 INFO L93 Difference]: Finished difference Result 216 states and 246 transitions. [2019-09-20 13:31:41,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:41,559 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2019-09-20 13:31:41,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:41,567 INFO L225 Difference]: With dead ends: 216 [2019-09-20 13:31:41,568 INFO L226 Difference]: Without dead ends: 216 [2019-09-20 13:31:41,568 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:41,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2019-09-20 13:31:41,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2019-09-20 13:31:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2019-09-20 13:31:41,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 246 transitions. [2019-09-20 13:31:41,597 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 246 transitions. Word has length 92 [2019-09-20 13:31:41,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:41,597 INFO L475 AbstractCegarLoop]: Abstraction has 216 states and 246 transitions. [2019-09-20 13:31:41,597 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:31:41,597 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 246 transitions. [2019-09-20 13:31:41,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-20 13:31:41,601 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:41,601 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:41,601 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:41,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:41,602 INFO L82 PathProgramCache]: Analyzing trace with hash 463270673, now seen corresponding path program 1 times [2019-09-20 13:31:41,602 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:41,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:41,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:41,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:41,608 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:41,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:41,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:41,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:31:41,719 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:41,719 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:31:41,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:31:41,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:41,720 INFO L87 Difference]: Start difference. First operand 216 states and 246 transitions. Second operand 8 states. [2019-09-20 13:31:41,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:41,753 INFO L93 Difference]: Finished difference Result 223 states and 253 transitions. [2019-09-20 13:31:41,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:31:41,755 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2019-09-20 13:31:41,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:41,757 INFO L225 Difference]: With dead ends: 223 [2019-09-20 13:31:41,757 INFO L226 Difference]: Without dead ends: 223 [2019-09-20 13:31:41,757 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:41,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2019-09-20 13:31:41,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 220. [2019-09-20 13:31:41,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-09-20 13:31:41,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 250 transitions. [2019-09-20 13:31:41,781 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 250 transitions. Word has length 92 [2019-09-20 13:31:41,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:41,782 INFO L475 AbstractCegarLoop]: Abstraction has 220 states and 250 transitions. [2019-09-20 13:31:41,782 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:31:41,782 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 250 transitions. [2019-09-20 13:31:41,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-20 13:31:41,784 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:41,785 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:41,785 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:41,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:41,785 INFO L82 PathProgramCache]: Analyzing trace with hash -2106215726, now seen corresponding path program 1 times [2019-09-20 13:31:41,785 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:41,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:41,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:41,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:41,788 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:41,882 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:41,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:41,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:31:41,884 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:41,885 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:31:41,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:31:41,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:41,892 INFO L87 Difference]: Start difference. First operand 220 states and 250 transitions. Second operand 4 states. [2019-09-20 13:31:42,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:42,116 INFO L93 Difference]: Finished difference Result 447 states and 529 transitions. [2019-09-20 13:31:42,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:31:42,117 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2019-09-20 13:31:42,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:42,120 INFO L225 Difference]: With dead ends: 447 [2019-09-20 13:31:42,120 INFO L226 Difference]: Without dead ends: 447 [2019-09-20 13:31:42,121 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:42,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-09-20 13:31:42,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 438. [2019-09-20 13:31:42,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2019-09-20 13:31:42,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 512 transitions. [2019-09-20 13:31:42,143 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 512 transitions. Word has length 92 [2019-09-20 13:31:42,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:42,143 INFO L475 AbstractCegarLoop]: Abstraction has 438 states and 512 transitions. [2019-09-20 13:31:42,143 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:31:42,144 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 512 transitions. [2019-09-20 13:31:42,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-20 13:31:42,145 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:42,145 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:42,146 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:42,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:42,146 INFO L82 PathProgramCache]: Analyzing trace with hash -302189332, now seen corresponding path program 1 times [2019-09-20 13:31:42,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:42,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:42,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:42,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:42,149 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:42,309 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:42,310 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:42,310 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:31:42,310 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:42,311 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:31:42,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:31:42,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:31:42,312 INFO L87 Difference]: Start difference. First operand 438 states and 512 transitions. Second operand 9 states. [2019-09-20 13:31:43,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:43,375 INFO L93 Difference]: Finished difference Result 801 states and 939 transitions. [2019-09-20 13:31:43,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-20 13:31:43,376 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2019-09-20 13:31:43,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:43,381 INFO L225 Difference]: With dead ends: 801 [2019-09-20 13:31:43,381 INFO L226 Difference]: Without dead ends: 801 [2019-09-20 13:31:43,381 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-09-20 13:31:43,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2019-09-20 13:31:43,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 728. [2019-09-20 13:31:43,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2019-09-20 13:31:43,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 841 transitions. [2019-09-20 13:31:43,413 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 841 transitions. Word has length 96 [2019-09-20 13:31:43,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:43,413 INFO L475 AbstractCegarLoop]: Abstraction has 728 states and 841 transitions. [2019-09-20 13:31:43,413 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:31:43,413 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 841 transitions. [2019-09-20 13:31:43,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-09-20 13:31:43,416 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:43,416 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:43,417 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:43,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:43,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1029431621, now seen corresponding path program 1 times [2019-09-20 13:31:43,417 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:43,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:43,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:43,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:43,420 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:43,577 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-20 13:31:43,577 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:31:43,577 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:31:43,578 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2019-09-20 13:31:43,581 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [85], [88], [92], [93], [94], [110], [114], [115], [116], [119], [121], [127], [131], [134], [135], [136], [145], [149], [153], [156], [159], [161], [167], [169], [172], [187], [188], [198], [199], [200], [202], [207], [209], [210], [211], [212], [218], [221], [225], [231], [260], [264], [265], [268], [270], [273], [280], [283], [286], [290], [291], [294], [295], [296], [298], [299], [300], [302], [305], [307], [310], [313], [322], [324], [325], [326], [420], [421], [431], [439], [440], [441], [442], [443], [444], [445], [446], [447], [479], [480], [481], [482], [485], [486], [487], [488], [489], [490], [493], [494], [497], [498], [499], [500], [501], [502], [503], [504], [505], [506], [511], [512], [513], [514], [517], [518], [519], [520], [521], [522], [523], [524], [525], [529], [530], [531], [539], [540], [541] [2019-09-20 13:31:43,637 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:31:43,637 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:31:43,749 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:31:43,752 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. [2019-09-20 13:31:43,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:43,759 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:31:43,871 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:31:43,871 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:31:43,883 INFO L420 sIntCurrentIteration]: We unified 156 AI predicates to 156 [2019-09-20 13:31:43,883 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:31:43,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:31:43,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-20 13:31:43,885 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:43,886 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:43,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:43,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:43,887 INFO L87 Difference]: Start difference. First operand 728 states and 841 transitions. Second operand 2 states. [2019-09-20 13:31:43,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:43,888 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:31:43,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:43,889 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 157 [2019-09-20 13:31:43,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:43,889 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:31:43,890 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:43,891 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:43,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:43,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:43,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:43,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:43,893 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2019-09-20 13:31:43,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:43,893 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:43,893 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:43,894 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:43,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:43,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:43 BoogieIcfgContainer [2019-09-20 13:31:43,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:43,906 INFO L168 Benchmark]: Toolchain (without parser) took 7463.89 ms. Allocated memory was 138.4 MB in the beginning and 332.9 MB in the end (delta: 194.5 MB). Free memory was 85.0 MB in the beginning and 73.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 206.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:43,907 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory was 104.4 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:43,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.07 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 84.8 MB in the beginning and 164.2 MB in the end (delta: -79.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:43,911 INFO L168 Benchmark]: Boogie Preprocessor took 85.36 ms. Allocated memory is still 198.7 MB. Free memory was 164.2 MB in the beginning and 159.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:43,917 INFO L168 Benchmark]: RCFGBuilder took 1303.62 ms. Allocated memory was 198.7 MB in the beginning and 220.2 MB in the end (delta: 21.5 MB). Free memory was 159.7 MB in the beginning and 189.5 MB in the end (delta: -29.7 MB). Peak memory consumption was 93.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:43,918 INFO L168 Benchmark]: TraceAbstraction took 5375.53 ms. Allocated memory was 220.2 MB in the beginning and 332.9 MB in the end (delta: 112.7 MB). Free memory was 189.5 MB in the beginning and 73.5 MB in the end (delta: 116.0 MB). Peak memory consumption was 228.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:43,931 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory was 104.4 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 693.07 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 84.8 MB in the beginning and 164.2 MB in the end (delta: -79.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.36 ms. Allocated memory is still 198.7 MB. Free memory was 164.2 MB in the beginning and 159.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1303.62 ms. Allocated memory was 198.7 MB in the beginning and 220.2 MB in the end (delta: 21.5 MB). Free memory was 159.7 MB in the beginning and 189.5 MB in the end (delta: -29.7 MB). Peak memory consumption was 93.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5375.53 ms. Allocated memory was 220.2 MB in the beginning and 332.9 MB in the end (delta: 112.7 MB). Free memory was 189.5 MB in the beginning and 73.5 MB in the end (delta: 116.0 MB). Peak memory consumption was 228.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 428]: 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 42 procedures, 245 locations, 1 error locations. SAFE Result, 5.3s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1537 SDtfs, 1063 SDslu, 2686 SDs, 0 SdLazy, 1570 SolverSat, 371 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 253 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=728occurred in iteration=9, 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, 0.8461538461538461 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 121 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 893 NumberOfCodeBlocks, 893 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 883 ConstructedInterpolants, 0 QuantifiedInterpolants, 139957 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 62/69 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...