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_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:50:16,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:50:16,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:50:16,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:50:16,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:50:16,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:50:16,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:50:16,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:50:16,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:50:16,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:50:16,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:50:16,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:50:16,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:50:16,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:50:16,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:50:16,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:50:16,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:50:16,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:50:16,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:50:16,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:50:16,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:50:16,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:50:16,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:50:16,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:50:16,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:50:16,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:50:16,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:50:16,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:50:16,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:50:16,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:50:16,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:50:16,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:50:16,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:50:16,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:50:16,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:50:16,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:50:16,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:50:16,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:50:16,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:50:16,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:50:16,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:50:16,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:50:16,496 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:50:16,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:50:16,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:50:16,497 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:50:16,497 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:50:16,497 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:50:16,498 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:50:16,498 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:50:16,498 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:50:16,498 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:50:16,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:50:16,499 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:50:16,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:50:16,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:50:16,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:50:16,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:50:16,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:50:16,500 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:50:16,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:50:16,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:50:16,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:50:16,501 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:50:16,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:50:16,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:50:16,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:50:16,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:50:16,502 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:50:16,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:50:16,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:50:16,503 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:50:16,537 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:50:16,553 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:50:16,559 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:50:16,561 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:50:16,562 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:50:16,563 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product40.cil.c [2019-09-10 02:50:16,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c49e0e5/4af89994d5f6460a98c020420b892c31/FLAGea7cad286 [2019-09-10 02:50:17,205 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:50:17,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product40.cil.c [2019-09-10 02:50:17,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c49e0e5/4af89994d5f6460a98c020420b892c31/FLAGea7cad286 [2019-09-10 02:50:17,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c49e0e5/4af89994d5f6460a98c020420b892c31 [2019-09-10 02:50:17,472 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:50:17,473 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:50:17,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:17,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:50:17,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:50:17,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:17" (1/1) ... [2019-09-10 02:50:17,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1140be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:17, skipping insertion in model container [2019-09-10 02:50:17,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:17" (1/1) ... [2019-09-10 02:50:17,490 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:50:17,532 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:50:18,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:18,081 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:50:18,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:18,193 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:50:18,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:18 WrapperNode [2019-09-10 02:50:18,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:18,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:50:18,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:50:18,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:50:18,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:18" (1/1) ... [2019-09-10 02:50:18,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:18" (1/1) ... [2019-09-10 02:50:18,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:18" (1/1) ... [2019-09-10 02:50:18,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:18" (1/1) ... [2019-09-10 02:50:18,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:18" (1/1) ... [2019-09-10 02:50:18,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:18" (1/1) ... [2019-09-10 02:50:18,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:18" (1/1) ... [2019-09-10 02:50:18,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:50:18,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:50:18,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:50:18,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:50:18,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:50:18,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:50:18,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:50:18,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:18,338 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:50:18,339 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:50:18,339 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:50:18,339 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:50:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:50:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:50:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:50:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:50:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:50:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:50:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:50:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:50:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:50:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:50:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:50:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:50:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:50:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:50:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:50:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:50:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:50:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:50:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:50:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:50:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:50:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:50:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:50:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:50:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:50:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:50:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:50:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:50:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:50:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:50:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:50:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:50:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:50:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:50:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:50:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:50:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:50:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:50:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:50:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:50:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:50:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:50:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:50:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:50:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:50:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:50:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:50:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:50:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:50:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:50:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:50:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:50:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:50:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:50:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:50:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:50:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:50:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:50:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:50:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:50:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:50:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:50:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:50:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:50:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:50:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:50:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:50:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:50:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:50:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:50:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:50:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:50:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:50:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:50:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:50:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:50:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:50:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:50:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:50:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:50:19,400 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:50:19,401 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:50:19,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:19 BoogieIcfgContainer [2019-09-10 02:50:19,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:50:19,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:50:19,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:50:19,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:50:19,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:50:17" (1/3) ... [2019-09-10 02:50:19,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64edaf79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:19, skipping insertion in model container [2019-09-10 02:50:19,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:18" (2/3) ... [2019-09-10 02:50:19,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64edaf79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:19, skipping insertion in model container [2019-09-10 02:50:19,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:19" (3/3) ... [2019-09-10 02:50:19,412 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product40.cil.c [2019-09-10 02:50:19,422 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:50:19,431 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:50:19,449 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:50:19,477 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:50:19,478 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:50:19,478 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:50:19,478 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:50:19,479 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:50:19,479 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:50:19,479 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:50:19,479 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:50:19,500 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2019-09-10 02:50:19,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:50:19,514 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:19,515 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:19,518 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:19,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:19,523 INFO L82 PathProgramCache]: Analyzing trace with hash -656044244, now seen corresponding path program 1 times [2019-09-10 02:50:19,525 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:19,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:19,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:19,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:19,575 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:19,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:19,840 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:19,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:50:19,841 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:19,847 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:19,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:19,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:19,867 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2019-09-10 02:50:19,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:19,918 INFO L93 Difference]: Finished difference Result 147 states and 171 transitions. [2019-09-10 02:50:19,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:19,920 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:50:19,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:19,934 INFO L225 Difference]: With dead ends: 147 [2019-09-10 02:50:19,934 INFO L226 Difference]: Without dead ends: 136 [2019-09-10 02:50:19,936 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:19,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-09-10 02:50:19,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2019-09-10 02:50:19,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-09-10 02:50:19,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 159 transitions. [2019-09-10 02:50:19,994 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 159 transitions. Word has length 46 [2019-09-10 02:50:19,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:19,994 INFO L475 AbstractCegarLoop]: Abstraction has 136 states and 159 transitions. [2019-09-10 02:50:19,995 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:19,995 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 159 transitions. [2019-09-10 02:50:19,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:50:19,998 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:19,999 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:19,999 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:19,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:20,000 INFO L82 PathProgramCache]: Analyzing trace with hash 679222766, now seen corresponding path program 1 times [2019-09-10 02:50:20,000 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:20,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:20,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:20,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:20,001 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:20,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:20,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:20,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:50:20,118 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:20,121 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:50:20,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:50:20,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:20,122 INFO L87 Difference]: Start difference. First operand 136 states and 159 transitions. Second operand 3 states. [2019-09-10 02:50:20,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:20,155 INFO L93 Difference]: Finished difference Result 127 states and 147 transitions. [2019-09-10 02:50:20,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:50:20,157 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:50:20,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:20,163 INFO L225 Difference]: With dead ends: 127 [2019-09-10 02:50:20,164 INFO L226 Difference]: Without dead ends: 127 [2019-09-10 02:50:20,165 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:20,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-09-10 02:50:20,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2019-09-10 02:50:20,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-09-10 02:50:20,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 147 transitions. [2019-09-10 02:50:20,192 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 147 transitions. Word has length 47 [2019-09-10 02:50:20,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:20,193 INFO L475 AbstractCegarLoop]: Abstraction has 127 states and 147 transitions. [2019-09-10 02:50:20,193 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:50:20,193 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 147 transitions. [2019-09-10 02:50:20,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:50:20,203 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:20,203 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:20,203 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:20,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:20,204 INFO L82 PathProgramCache]: Analyzing trace with hash 496169114, now seen corresponding path program 1 times [2019-09-10 02:50:20,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:20,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:20,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:20,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:20,206 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:20,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:20,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:20,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:50:20,428 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:20,429 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:50:20,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:50:20,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:50:20,430 INFO L87 Difference]: Start difference. First operand 127 states and 147 transitions. Second operand 7 states. [2019-09-10 02:50:20,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:20,884 INFO L93 Difference]: Finished difference Result 280 states and 334 transitions. [2019-09-10 02:50:20,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:50:20,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-10 02:50:20,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:20,888 INFO L225 Difference]: With dead ends: 280 [2019-09-10 02:50:20,889 INFO L226 Difference]: Without dead ends: 280 [2019-09-10 02:50:20,889 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:50:20,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-09-10 02:50:20,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 268. [2019-09-10 02:50:20,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2019-09-10 02:50:20,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 322 transitions. [2019-09-10 02:50:20,919 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 322 transitions. Word has length 52 [2019-09-10 02:50:20,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:20,920 INFO L475 AbstractCegarLoop]: Abstraction has 268 states and 322 transitions. [2019-09-10 02:50:20,920 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:50:20,920 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 322 transitions. [2019-09-10 02:50:20,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 02:50:20,923 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:20,923 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:20,924 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:20,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:20,924 INFO L82 PathProgramCache]: Analyzing trace with hash 987448314, now seen corresponding path program 1 times [2019-09-10 02:50:20,924 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:20,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:20,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:20,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:20,926 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:21,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:21,122 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:21,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 02:50:21,122 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:21,123 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 02:50:21,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 02:50:21,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:50:21,123 INFO L87 Difference]: Start difference. First operand 268 states and 322 transitions. Second operand 10 states. [2019-09-10 02:50:21,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:21,850 INFO L93 Difference]: Finished difference Result 708 states and 891 transitions. [2019-09-10 02:50:21,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:50:21,853 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-09-10 02:50:21,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:21,865 INFO L225 Difference]: With dead ends: 708 [2019-09-10 02:50:21,866 INFO L226 Difference]: Without dead ends: 708 [2019-09-10 02:50:21,869 INFO L628 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 [2019-09-10 02:50:21,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2019-09-10 02:50:21,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 696. [2019-09-10 02:50:21,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2019-09-10 02:50:21,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 870 transitions. [2019-09-10 02:50:21,954 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 870 transitions. Word has length 57 [2019-09-10 02:50:21,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:21,956 INFO L475 AbstractCegarLoop]: Abstraction has 696 states and 870 transitions. [2019-09-10 02:50:21,957 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 02:50:21,957 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 870 transitions. [2019-09-10 02:50:21,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-10 02:50:21,969 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:21,969 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:21,969 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:21,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:21,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1158385600, now seen corresponding path program 1 times [2019-09-10 02:50:21,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:21,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:21,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:21,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:21,973 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:22,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:22,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:22,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:50:22,076 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:22,077 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:50:22,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:50:22,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:50:22,077 INFO L87 Difference]: Start difference. First operand 696 states and 870 transitions. Second operand 4 states. [2019-09-10 02:50:22,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:22,448 INFO L93 Difference]: Finished difference Result 1093 states and 1441 transitions. [2019-09-10 02:50:22,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:50:22,450 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-09-10 02:50:22,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:22,460 INFO L225 Difference]: With dead ends: 1093 [2019-09-10 02:50:22,460 INFO L226 Difference]: Without dead ends: 1093 [2019-09-10 02:50:22,460 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:50:22,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2019-09-10 02:50:22,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 955. [2019-09-10 02:50:22,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 955 states. [2019-09-10 02:50:22,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1202 transitions. [2019-09-10 02:50:22,538 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1202 transitions. Word has length 61 [2019-09-10 02:50:22,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:22,539 INFO L475 AbstractCegarLoop]: Abstraction has 955 states and 1202 transitions. [2019-09-10 02:50:22,539 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:50:22,539 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1202 transitions. [2019-09-10 02:50:22,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 02:50:22,544 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:22,545 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 02:50:22,545 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:22,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:22,545 INFO L82 PathProgramCache]: Analyzing trace with hash -623744306, now seen corresponding path program 1 times [2019-09-10 02:50:22,546 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:22,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:22,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:22,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:22,547 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:22,735 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-10 02:50:22,735 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:50:22,736 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:50:22,737 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2019-09-10 02:50:22,739 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [107], [109], [110], [111], [153], [162], [166], [170], [173], [178], [184], [186], [192], [195], [198], [228], [229], [235], [242], [245], [304], [308], [309], [312], [313], [314], [407], [408], [418], [426], [427], [428], [429], [430], [432], [433], [434], [435], [436], [437], [438], [439], [440], [482], [483], [488], [489], [490], [491], [500], [501], [516], [524], [525], [526] [2019-09-10 02:50:22,786 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:50:22,786 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:50:22,853 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:50:22,855 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-10 02:50:22,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:22,860 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:50:22,902 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:50:22,902 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:50:22,905 INFO L420 sIntCurrentIteration]: We unified 88 AI predicates to 88 [2019-09-10 02:50:22,905 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:50:22,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:50:22,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 02:50:22,906 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:22,907 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:22,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:22,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:22,908 INFO L87 Difference]: Start difference. First operand 955 states and 1202 transitions. Second operand 2 states. [2019-09-10 02:50:22,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:22,908 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:50:22,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:22,909 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 89 [2019-09-10 02:50:22,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:22,909 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:50:22,909 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:50:22,910 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:22,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:50:22,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:50:22,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:50:22,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:50:22,910 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2019-09-10 02:50:22,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:22,910 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:50:22,911 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:22,911 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:50:22,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:50:22,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:50:22 BoogieIcfgContainer [2019-09-10 02:50:22,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:50:22,918 INFO L168 Benchmark]: Toolchain (without parser) took 5443.76 ms. Allocated memory was 133.2 MB in the beginning and 259.5 MB in the end (delta: 126.4 MB). Free memory was 88.7 MB in the beginning and 159.3 MB in the end (delta: -70.6 MB). Peak memory consumption was 55.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:22,919 INFO L168 Benchmark]: CDTParser took 1.27 ms. Allocated memory is still 133.2 MB. Free memory was 107.6 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:50:22,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.99 ms. Allocated memory was 133.2 MB in the beginning and 202.9 MB in the end (delta: 69.7 MB). Free memory was 88.5 MB in the beginning and 169.1 MB in the end (delta: -80.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:22,921 INFO L168 Benchmark]: Boogie Preprocessor took 89.27 ms. Allocated memory is still 202.9 MB. Free memory was 169.1 MB in the beginning and 163.2 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:22,922 INFO L168 Benchmark]: RCFGBuilder took 1118.33 ms. Allocated memory was 202.9 MB in the beginning and 228.1 MB in the end (delta: 25.2 MB). Free memory was 163.2 MB in the beginning and 197.7 MB in the end (delta: -34.5 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:22,923 INFO L168 Benchmark]: TraceAbstraction took 3511.69 ms. Allocated memory was 228.1 MB in the beginning and 259.5 MB in the end (delta: 31.5 MB). Free memory was 196.4 MB in the beginning and 159.3 MB in the end (delta: 37.0 MB). Peak memory consumption was 68.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:22,928 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.27 ms. Allocated memory is still 133.2 MB. Free memory was 107.6 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.99 ms. Allocated memory was 133.2 MB in the beginning and 202.9 MB in the end (delta: 69.7 MB). Free memory was 88.5 MB in the beginning and 169.1 MB in the end (delta: -80.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.27 ms. Allocated memory is still 202.9 MB. Free memory was 169.1 MB in the beginning and 163.2 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1118.33 ms. Allocated memory was 202.9 MB in the beginning and 228.1 MB in the end (delta: 25.2 MB). Free memory was 163.2 MB in the beginning and 197.7 MB in the end (delta: -34.5 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3511.69 ms. Allocated memory was 228.1 MB in the beginning and 259.5 MB in the end (delta: 31.5 MB). Free memory was 196.4 MB in the beginning and 159.3 MB in the end (delta: 37.0 MB). Peak memory consumption was 68.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 329]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 235 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 821 SDtfs, 660 SDslu, 1967 SDs, 0 SdLazy, 744 SolverSat, 131 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=955occurred 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, 1.0795454545454546 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 162 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 352 NumberOfCodeBlocks, 352 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 346 ConstructedInterpolants, 0 QuantifiedInterpolants, 43640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 21/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...