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_spec4_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:58:28,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:58:28,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:58:28,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:58:28,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:58:28,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:58:28,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:58:28,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:58:28,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:58:28,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:58:28,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:58:28,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:58:28,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:58:28,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:58:28,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:58:28,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:58:28,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:58:28,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:58:28,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:58:28,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:58:28,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:58:28,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:58:28,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:58:28,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:58:28,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:58:28,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:58:28,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:58:28,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:58:28,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:58:28,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:58:28,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:58:28,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:58:28,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:58:28,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:58:28,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:58:28,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:58:28,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:58:28,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:58:28,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:58:28,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:58:28,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:58:28,552 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 [2019-10-03 02:58:28,569 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:58:28,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:58:28,570 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:58:28,570 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:58:28,571 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:58:28,571 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:58:28,571 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:58:28,571 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:58:28,572 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:58:28,572 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:58:28,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:58:28,573 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:58:28,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:58:28,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:58:28,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:58:28,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:58:28,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:58:28,574 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:58:28,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:58:28,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:58:28,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:58:28,575 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:58:28,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:58:28,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:28,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:58:28,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:58:28,576 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:58:28,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:58:28,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:58:28,577 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:58:28,630 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:58:28,649 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:58:28,653 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:58:28,656 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:58:28,657 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:58:28,658 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2019-10-03 02:58:28,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1da667e0/2bc15a4dba614271bb58aa5d2c114dee/FLAGa83722531 [2019-10-03 02:58:29,275 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:58:29,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2019-10-03 02:58:29,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1da667e0/2bc15a4dba614271bb58aa5d2c114dee/FLAGa83722531 [2019-10-03 02:58:29,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1da667e0/2bc15a4dba614271bb58aa5d2c114dee [2019-10-03 02:58:29,563 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:58:29,565 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:58:29,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:29,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:58:29,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:58:29,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:29" (1/1) ... [2019-10-03 02:58:29,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702bca65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:29, skipping insertion in model container [2019-10-03 02:58:29,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:29" (1/1) ... [2019-10-03 02:58:29,585 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:58:29,635 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:58:30,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:30,137 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:58:30,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:30,303 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:58:30,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30 WrapperNode [2019-10-03 02:58:30,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:30,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:58:30,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:58:30,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:58:30,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (1/1) ... [2019-10-03 02:58:30,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (1/1) ... [2019-10-03 02:58:30,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (1/1) ... [2019-10-03 02:58:30,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (1/1) ... [2019-10-03 02:58:30,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (1/1) ... [2019-10-03 02:58:30,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (1/1) ... [2019-10-03 02:58:30,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (1/1) ... [2019-10-03 02:58:30,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:58:30,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:58:30,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:58:30,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:58:30,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:30,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:58:30,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:58:30,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:30,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:30,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:30,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:30,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:58:30,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:58:30,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:58:30,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:30,496 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:58:30,496 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:58:30,496 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:58:30,497 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:58:30,497 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:58:30,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:58:30,497 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:58:30,497 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:58:30,498 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:58:30,498 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:58:30,498 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:58:30,498 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:58:30,498 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:58:30,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:58:30,499 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:58:30,499 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:58:30,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:58:30,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:58:30,500 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:58:30,500 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:58:30,500 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:30,500 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:58:30,501 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:58:30,501 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:58:30,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:58:30,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:58:30,501 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:58:30,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:58:30,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:58:30,502 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:58:30,502 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:58:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:58:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:58:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:58:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:58:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:58:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:58:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:58:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:58:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:58:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:58:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:58:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:58:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:58:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:58:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:58:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:58:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:58:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:58:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:58:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:58:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:58:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:58:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:58:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:58:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:58:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:58:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:58:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:58:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:58:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:58:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:58:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:58:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:58:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:58:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:58:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:58:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:58:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:58:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:58:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:58:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:58:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:58:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:58:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:58:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:58:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:58:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:58:30,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:58:30,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:58:31,995 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:58:31,996 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:58:31,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:31 BoogieIcfgContainer [2019-10-03 02:58:31,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:58:32,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:58:32,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:58:32,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:58:32,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:58:29" (1/3) ... [2019-10-03 02:58:32,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6506c0a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:32, skipping insertion in model container [2019-10-03 02:58:32,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (2/3) ... [2019-10-03 02:58:32,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6506c0a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:32, skipping insertion in model container [2019-10-03 02:58:32,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:31" (3/3) ... [2019-10-03 02:58:32,009 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2019-10-03 02:58:32,020 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:58:32,031 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:58:32,049 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:58:32,083 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:58:32,083 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:58:32,083 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:58:32,083 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:58:32,083 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:58:32,084 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:58:32,084 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:58:32,085 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:58:32,109 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2019-10-03 02:58:32,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:58:32,124 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:32,125 INFO L411 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] [2019-10-03 02:58:32,127 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:32,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:32,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1488722281, now seen corresponding path program 1 times [2019-10-03 02:58:32,136 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:32,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:32,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,193 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:32,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:32,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:32,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:58:32,524 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:32,529 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:32,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:32,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:32,543 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 2 states. [2019-10-03 02:58:32,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:32,571 INFO L93 Difference]: Finished difference Result 143 states and 166 transitions. [2019-10-03 02:58:32,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:32,572 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:58:32,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:32,585 INFO L225 Difference]: With dead ends: 143 [2019-10-03 02:58:32,586 INFO L226 Difference]: Without dead ends: 132 [2019-10-03 02:58:32,588 INFO L640 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 [2019-10-03 02:58:32,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-10-03 02:58:32,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-10-03 02:58:32,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-03 02:58:32,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2019-10-03 02:58:32,648 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 46 [2019-10-03 02:58:32,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:32,649 INFO L475 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2019-10-03 02:58:32,649 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:32,649 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2019-10-03 02:58:32,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:58:32,653 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:32,653 INFO L411 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] [2019-10-03 02:58:32,653 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:32,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:32,654 INFO L82 PathProgramCache]: Analyzing trace with hash 469599371, now seen corresponding path program 1 times [2019-10-03 02:58:32,654 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:32,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:32,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,657 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:32,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:32,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:32,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:32,807 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:32,810 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:32,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:32,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:32,812 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 3 states. [2019-10-03 02:58:32,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:32,838 INFO L93 Difference]: Finished difference Result 123 states and 142 transitions. [2019-10-03 02:58:32,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:32,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:58:32,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:32,843 INFO L225 Difference]: With dead ends: 123 [2019-10-03 02:58:32,843 INFO L226 Difference]: Without dead ends: 123 [2019-10-03 02:58:32,845 INFO L640 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 [2019-10-03 02:58:32,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-10-03 02:58:32,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-10-03 02:58:32,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-03 02:58:32,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2019-10-03 02:58:32,867 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 47 [2019-10-03 02:58:32,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:32,868 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2019-10-03 02:58:32,868 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:32,868 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2019-10-03 02:58:32,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:58:32,870 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:32,871 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:32,871 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:32,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:32,871 INFO L82 PathProgramCache]: Analyzing trace with hash 305445596, now seen corresponding path program 1 times [2019-10-03 02:58:32,871 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:32,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:32,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,874 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:33,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:33,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:33,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:33,049 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:33,049 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:33,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:33,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:33,050 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 7 states. [2019-10-03 02:58:33,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:33,399 INFO L93 Difference]: Finished difference Result 123 states and 141 transitions. [2019-10-03 02:58:33,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:58:33,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-10-03 02:58:33,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:33,402 INFO L225 Difference]: With dead ends: 123 [2019-10-03 02:58:33,402 INFO L226 Difference]: Without dead ends: 123 [2019-10-03 02:58:33,403 INFO L640 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 [2019-10-03 02:58:33,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-10-03 02:58:33,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-10-03 02:58:33,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-03 02:58:33,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2019-10-03 02:58:33,424 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 52 [2019-10-03 02:58:33,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:33,425 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2019-10-03 02:58:33,425 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:58:33,425 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2019-10-03 02:58:33,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-03 02:58:33,432 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:33,432 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:33,433 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:33,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:33,436 INFO L82 PathProgramCache]: Analyzing trace with hash 892474279, now seen corresponding path program 1 times [2019-10-03 02:58:33,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:33,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:33,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:33,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:33,440 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:33,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:33,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:33,560 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:58:33,560 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:33,561 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:58:33,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:58:33,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:58:33,562 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand 5 states. [2019-10-03 02:58:34,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:34,086 INFO L93 Difference]: Finished difference Result 222 states and 256 transitions. [2019-10-03 02:58:34,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:58:34,086 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-10-03 02:58:34,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:34,089 INFO L225 Difference]: With dead ends: 222 [2019-10-03 02:58:34,089 INFO L226 Difference]: Without dead ends: 222 [2019-10-03 02:58:34,090 INFO L640 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 [2019-10-03 02:58:34,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2019-10-03 02:58:34,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 203. [2019-10-03 02:58:34,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-10-03 02:58:34,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 230 transitions. [2019-10-03 02:58:34,119 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 230 transitions. Word has length 65 [2019-10-03 02:58:34,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:34,121 INFO L475 AbstractCegarLoop]: Abstraction has 203 states and 230 transitions. [2019-10-03 02:58:34,121 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:58:34,121 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 230 transitions. [2019-10-03 02:58:34,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-03 02:58:34,124 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:34,125 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:34,125 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:34,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:34,126 INFO L82 PathProgramCache]: Analyzing trace with hash 861206730, now seen corresponding path program 1 times [2019-10-03 02:58:34,126 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:34,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:34,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:34,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:34,132 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:34,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:34,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:34,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-03 02:58:34,299 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:34,301 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-03 02:58:34,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-03 02:58:34,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:34,302 INFO L87 Difference]: Start difference. First operand 203 states and 230 transitions. Second operand 10 states. [2019-10-03 02:58:34,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:34,964 INFO L93 Difference]: Finished difference Result 471 states and 558 transitions. [2019-10-03 02:58:34,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-03 02:58:34,965 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2019-10-03 02:58:34,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:34,971 INFO L225 Difference]: With dead ends: 471 [2019-10-03 02:58:34,971 INFO L226 Difference]: Without dead ends: 471 [2019-10-03 02:58:34,972 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:58:34,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2019-10-03 02:58:35,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 461. [2019-10-03 02:58:35,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2019-10-03 02:58:35,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 541 transitions. [2019-10-03 02:58:35,010 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 541 transitions. Word has length 79 [2019-10-03 02:58:35,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:35,011 INFO L475 AbstractCegarLoop]: Abstraction has 461 states and 541 transitions. [2019-10-03 02:58:35,011 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-03 02:58:35,011 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 541 transitions. [2019-10-03 02:58:35,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-10-03 02:58:35,017 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:35,017 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:58:35,017 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:35,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:35,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1952847160, now seen corresponding path program 1 times [2019-10-03 02:58:35,018 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:35,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:35,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:35,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:35,022 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:35,189 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:58:35,189 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:58:35,189 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:58:35,191 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2019-10-03 02:58:35,193 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [102], [104], [107], [111], [112], [113], [129], [132], [134], [135], [138], [140], [143], [150], [153], [155], [164], [168], [172], [175], [178], [180], [186], [188], [194], [197], [207], [208], [218], [219], [220], [221], [222], [224], [227], [231], [232], [235], [238], [242], [248], [279], [283], [286], [289], [291], [294], [304], [307], [311], [312], [315], [316], [317], [344], [345], [410], [411], [421], [429], [430], [431], [432], [433], [435], [436], [437], [438], [439], [440], [441], [442], [443], [475], [476], [477], [478], [479], [480], [483], [484], [485], [486], [491], [492], [495], [496], [497], [498], [499], [500], [501], [502], [507], [508], [509], [510], [517], [525], [526], [527] [2019-10-03 02:58:35,237 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:58:35,237 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:58:35,316 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:58:35,318 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. [2019-10-03 02:58:35,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:35,324 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:58:35,405 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:58:35,406 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:58:35,413 INFO L420 sIntCurrentIteration]: We unified 133 AI predicates to 133 [2019-10-03 02:58:35,413 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:58:35,417 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:58:35,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-10-03 02:58:35,418 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:35,418 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:35,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:35,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:35,419 INFO L87 Difference]: Start difference. First operand 461 states and 541 transitions. Second operand 2 states. [2019-10-03 02:58:35,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:35,421 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:58:35,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:35,421 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 134 [2019-10-03 02:58:35,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:35,421 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:58:35,421 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:58:35,422 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:35,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:58:35,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:58:35,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:58:35,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:58:35,423 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2019-10-03 02:58:35,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:35,423 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:58:35,423 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:35,423 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:58:35,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:58:35,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:58:35 BoogieIcfgContainer [2019-10-03 02:58:35,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:58:35,436 INFO L168 Benchmark]: Toolchain (without parser) took 5869.18 ms. Allocated memory was 137.9 MB in the beginning and 270.0 MB in the end (delta: 132.1 MB). Free memory was 84.4 MB in the beginning and 188.1 MB in the end (delta: -103.7 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:35,437 INFO L168 Benchmark]: CDTParser took 1.12 ms. Allocated memory is still 137.9 MB. Free memory was 103.8 MB in the beginning and 103.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:58:35,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.82 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 84.2 MB in the beginning and 164.1 MB in the end (delta: -79.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:35,441 INFO L168 Benchmark]: Boogie Preprocessor took 124.61 ms. Allocated memory is still 199.2 MB. Free memory was 164.1 MB in the beginning and 160.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:35,443 INFO L168 Benchmark]: RCFGBuilder took 1567.37 ms. Allocated memory was 199.2 MB in the beginning and 219.7 MB in the end (delta: 20.4 MB). Free memory was 160.2 MB in the beginning and 188.9 MB in the end (delta: -28.6 MB). Peak memory consumption was 94.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:35,445 INFO L168 Benchmark]: TraceAbstraction took 3432.35 ms. Allocated memory was 219.7 MB in the beginning and 270.0 MB in the end (delta: 50.3 MB). Free memory was 188.9 MB in the beginning and 188.1 MB in the end (delta: 729.3 kB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:35,454 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.12 ms. Allocated memory is still 137.9 MB. Free memory was 103.8 MB in the beginning and 103.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.82 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 84.2 MB in the beginning and 164.1 MB in the end (delta: -79.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.61 ms. Allocated memory is still 199.2 MB. Free memory was 164.1 MB in the beginning and 160.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1567.37 ms. Allocated memory was 199.2 MB in the beginning and 219.7 MB in the end (delta: 20.4 MB). Free memory was 160.2 MB in the beginning and 188.9 MB in the end (delta: -28.6 MB). Peak memory consumption was 94.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3432.35 ms. Allocated memory was 219.7 MB in the beginning and 270.0 MB in the end (delta: 50.3 MB). Free memory was 188.9 MB in the beginning and 188.1 MB in the end (delta: 729.3 kB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 543]: 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 41 procedures, 239 locations, 1 error locations. SAFE Result, 3.3s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 777 SDtfs, 531 SDslu, 1667 SDs, 0 SdLazy, 703 SolverSat, 154 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=461occurred in iteration=5, 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, 0.9323308270676691 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 29 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 423 NumberOfCodeBlocks, 423 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 417 ConstructedInterpolants, 0 QuantifiedInterpolants, 51799 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 23/25 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...