java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:59:01,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:59:01,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:59:01,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:59:01,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:59:01,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:59:01,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:59:01,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:59:01,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:59:01,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:59:01,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:59:01,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:59:01,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:59:01,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:59:01,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:59:01,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:59:01,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:59:01,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:59:01,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:59:01,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:59:01,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:59:01,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:59:01,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:59:01,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:59:01,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:59:01,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:59:01,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:59:01,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:59:01,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:59:01,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:59:01,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:59:01,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:59:01,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:59:01,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:59:01,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:59:01,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:59:01,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:59:01,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:59:01,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:59:01,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:59:01,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:59:01,625 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 02:59:01,644 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:59:01,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:59:01,644 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:59:01,645 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:59:01,646 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:59:01,646 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:59:01,647 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:59:01,647 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:59:01,647 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:59:01,647 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:59:01,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:59:01,650 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:59:01,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:59:01,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:59:01,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:59:01,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:59:01,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:59:01,651 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:59:01,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:59:01,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:59:01,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:59:01,652 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:59:01,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:59:01,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:59:01,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:59:01,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:59:01,654 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:59:01,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:59:01,654 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:59:01,654 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:59:01,712 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:59:01,728 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:59:01,731 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:59:01,732 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:59:01,733 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:59:01,734 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c [2019-10-03 02:59:01,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94eda91d2/0e25fe4150f646fe9fb44796c4880a2f/FLAG917e86fd9 [2019-10-03 02:59:02,401 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:59:02,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c [2019-10-03 02:59:02,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94eda91d2/0e25fe4150f646fe9fb44796c4880a2f/FLAG917e86fd9 [2019-10-03 02:59:02,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94eda91d2/0e25fe4150f646fe9fb44796c4880a2f [2019-10-03 02:59:02,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:59:02,699 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:59:02,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:59:02,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:59:02,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:59:02,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:59:02" (1/1) ... [2019-10-03 02:59:02,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ec9619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:02, skipping insertion in model container [2019-10-03 02:59:02,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:59:02" (1/1) ... [2019-10-03 02:59:02,718 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:59:02,766 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:59:03,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:59:03,200 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:59:03,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:59:03,351 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:59:03,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:03 WrapperNode [2019-10-03 02:59:03,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:59:03,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:59:03,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:59:03,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:59:03,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:03" (1/1) ... [2019-10-03 02:59:03,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:03" (1/1) ... [2019-10-03 02:59:03,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:03" (1/1) ... [2019-10-03 02:59:03,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:03" (1/1) ... [2019-10-03 02:59:03,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:03" (1/1) ... [2019-10-03 02:59:03,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:03" (1/1) ... [2019-10-03 02:59:03,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:03" (1/1) ... [2019-10-03 02:59:03,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:59:03,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:59:03,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:59:03,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:59:03,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:03" (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 02:59:03,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:59:03,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:59:03,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:59:03,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:59:03,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:59:03,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:59:03,509 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:59:03,509 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:59:03,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:59:03,510 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:59:03,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:59:03,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:59:03,510 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:59:03,510 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:59:03,510 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:59:03,511 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:59:03,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:59:03,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:59:03,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:59:03,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:59:03,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:59:03,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:59:03,512 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:59:03,512 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:59:03,512 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:59:03,512 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:59:03,512 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:59:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:59:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:59:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:59:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:59:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:59:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:59:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-03 02:59:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:59:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:59:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:59:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:59:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:59:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:59:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:59:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:59:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:59:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:59:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:59:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:59:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:59:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:59:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:59:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:59:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:59:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:59:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:59:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:59:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:59:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:59:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:59:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:59:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:59:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:59:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:59:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:59:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:59:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:59:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:59:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:59:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:59:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:59:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:59:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:59:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:59:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:59:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:59:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:59:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:59:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:59:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:59:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:59:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:59:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:59:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:59:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:59:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:59:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:59:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:59:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:59:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:59:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:59:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:59:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:59:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:59:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-03 02:59:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:59:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:59:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:59:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:59:04,687 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:59:04,688 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:59:04,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:59:04 BoogieIcfgContainer [2019-10-03 02:59:04,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:59:04,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:59:04,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:59:04,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:59:04,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:59:02" (1/3) ... [2019-10-03 02:59:04,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bea914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:59:04, skipping insertion in model container [2019-10-03 02:59:04,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:03" (2/3) ... [2019-10-03 02:59:04,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bea914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:59:04, skipping insertion in model container [2019-10-03 02:59:04,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:59:04" (3/3) ... [2019-10-03 02:59:04,699 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product42.cil.c [2019-10-03 02:59:04,710 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:59:04,720 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:59:04,738 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:59:04,768 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:59:04,768 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:59:04,768 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:59:04,769 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:59:04,769 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:59:04,769 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:59:04,769 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:59:04,770 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:59:04,789 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2019-10-03 02:59:04,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-03 02:59:04,804 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:04,806 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:04,809 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:04,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:04,815 INFO L82 PathProgramCache]: Analyzing trace with hash -318385319, now seen corresponding path program 1 times [2019-10-03 02:59:04,818 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:04,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:04,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:04,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:04,873 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:05,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:05,213 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:05,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:59:05,214 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:05,219 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:59:05,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:59:05,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:05,240 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 2 states. [2019-10-03 02:59:05,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:05,271 INFO L93 Difference]: Finished difference Result 145 states and 167 transitions. [2019-10-03 02:59:05,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:59:05,273 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-10-03 02:59:05,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:05,287 INFO L225 Difference]: With dead ends: 145 [2019-10-03 02:59:05,288 INFO L226 Difference]: Without dead ends: 134 [2019-10-03 02:59:05,290 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 02:59:05,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-10-03 02:59:05,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-10-03 02:59:05,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-03 02:59:05,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 155 transitions. [2019-10-03 02:59:05,347 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 155 transitions. Word has length 59 [2019-10-03 02:59:05,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:05,347 INFO L475 AbstractCegarLoop]: Abstraction has 134 states and 155 transitions. [2019-10-03 02:59:05,347 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:59:05,348 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 155 transitions. [2019-10-03 02:59:05,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-03 02:59:05,351 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:05,351 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:05,352 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:05,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:05,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1634844471, now seen corresponding path program 1 times [2019-10-03 02:59:05,353 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:05,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:05,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:05,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:05,356 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:05,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:05,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:05,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:59:05,486 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:05,489 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:59:05,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:59:05,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:59:05,491 INFO L87 Difference]: Start difference. First operand 134 states and 155 transitions. Second operand 3 states. [2019-10-03 02:59:05,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:05,517 INFO L93 Difference]: Finished difference Result 125 states and 143 transitions. [2019-10-03 02:59:05,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:59:05,518 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-03 02:59:05,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:05,524 INFO L225 Difference]: With dead ends: 125 [2019-10-03 02:59:05,524 INFO L226 Difference]: Without dead ends: 125 [2019-10-03 02:59:05,526 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 02:59:05,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-10-03 02:59:05,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-10-03 02:59:05,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-03 02:59:05,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 143 transitions. [2019-10-03 02:59:05,554 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 143 transitions. Word has length 60 [2019-10-03 02:59:05,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:05,556 INFO L475 AbstractCegarLoop]: Abstraction has 125 states and 143 transitions. [2019-10-03 02:59:05,556 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:59:05,556 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 143 transitions. [2019-10-03 02:59:05,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-03 02:59:05,562 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:05,563 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:05,563 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:05,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:05,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1075077358, now seen corresponding path program 1 times [2019-10-03 02:59:05,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:05,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:05,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:05,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:05,567 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:05,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:05,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:05,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:59:05,772 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:05,773 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:59:05,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:59:05,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:05,774 INFO L87 Difference]: Start difference. First operand 125 states and 143 transitions. Second operand 7 states. [2019-10-03 02:59:06,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:06,120 INFO L93 Difference]: Finished difference Result 125 states and 142 transitions. [2019-10-03 02:59:06,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:59:06,120 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-10-03 02:59:06,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:06,123 INFO L225 Difference]: With dead ends: 125 [2019-10-03 02:59:06,123 INFO L226 Difference]: Without dead ends: 125 [2019-10-03 02:59:06,123 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 02:59:06,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-10-03 02:59:06,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-10-03 02:59:06,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-03 02:59:06,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 142 transitions. [2019-10-03 02:59:06,134 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 142 transitions. Word has length 65 [2019-10-03 02:59:06,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:06,136 INFO L475 AbstractCegarLoop]: Abstraction has 125 states and 142 transitions. [2019-10-03 02:59:06,137 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:59:06,137 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 142 transitions. [2019-10-03 02:59:06,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-03 02:59:06,140 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:06,140 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:06,140 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:06,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:06,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1759456211, now seen corresponding path program 1 times [2019-10-03 02:59:06,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:06,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:06,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:06,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:06,145 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:06,306 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:06,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:06,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:59:06,307 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:06,309 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:59:06,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:59:06,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:59:06,309 INFO L87 Difference]: Start difference. First operand 125 states and 142 transitions. Second operand 5 states. [2019-10-03 02:59:06,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:06,845 INFO L93 Difference]: Finished difference Result 222 states and 259 transitions. [2019-10-03 02:59:06,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:59:06,846 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2019-10-03 02:59:06,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:06,853 INFO L225 Difference]: With dead ends: 222 [2019-10-03 02:59:06,853 INFO L226 Difference]: Without dead ends: 222 [2019-10-03 02:59:06,854 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:06,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2019-10-03 02:59:06,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 203. [2019-10-03 02:59:06,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-10-03 02:59:06,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 233 transitions. [2019-10-03 02:59:06,892 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 233 transitions. Word has length 73 [2019-10-03 02:59:06,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:06,892 INFO L475 AbstractCegarLoop]: Abstraction has 203 states and 233 transitions. [2019-10-03 02:59:06,893 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:59:06,893 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 233 transitions. [2019-10-03 02:59:06,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-03 02:59:06,895 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:06,898 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:06,898 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:06,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:06,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1988493165, now seen corresponding path program 1 times [2019-10-03 02:59:06,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:06,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:06,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:06,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:06,905 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:07,053 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:59:07,053 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:07,053 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:59:07,053 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:07,054 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:59:07,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:59:07,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:07,055 INFO L87 Difference]: Start difference. First operand 203 states and 233 transitions. Second operand 7 states. [2019-10-03 02:59:07,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:07,750 INFO L93 Difference]: Finished difference Result 221 states and 258 transitions. [2019-10-03 02:59:07,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:59:07,750 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-10-03 02:59:07,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:07,753 INFO L225 Difference]: With dead ends: 221 [2019-10-03 02:59:07,753 INFO L226 Difference]: Without dead ends: 221 [2019-10-03 02:59:07,754 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:59:07,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2019-10-03 02:59:07,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 202. [2019-10-03 02:59:07,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-10-03 02:59:07,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 230 transitions. [2019-10-03 02:59:07,767 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 230 transitions. Word has length 87 [2019-10-03 02:59:07,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:07,768 INFO L475 AbstractCegarLoop]: Abstraction has 202 states and 230 transitions. [2019-10-03 02:59:07,768 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:59:07,768 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 230 transitions. [2019-10-03 02:59:07,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-03 02:59:07,771 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:07,771 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:07,771 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:07,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:07,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1941251357, now seen corresponding path program 1 times [2019-10-03 02:59:07,772 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:07,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:07,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,775 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:07,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:07,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:07,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:59:07,876 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:07,880 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:59:07,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:59:07,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:59:07,881 INFO L87 Difference]: Start difference. First operand 202 states and 230 transitions. Second operand 6 states. [2019-10-03 02:59:07,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:07,914 INFO L93 Difference]: Finished difference Result 209 states and 237 transitions. [2019-10-03 02:59:07,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:59:07,915 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2019-10-03 02:59:07,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:07,919 INFO L225 Difference]: With dead ends: 209 [2019-10-03 02:59:07,919 INFO L226 Difference]: Without dead ends: 209 [2019-10-03 02:59:07,920 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:07,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2019-10-03 02:59:07,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207. [2019-10-03 02:59:07,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2019-10-03 02:59:07,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 235 transitions. [2019-10-03 02:59:07,950 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 235 transitions. Word has length 103 [2019-10-03 02:59:07,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:07,951 INFO L475 AbstractCegarLoop]: Abstraction has 207 states and 235 transitions. [2019-10-03 02:59:07,951 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:59:07,951 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 235 transitions. [2019-10-03 02:59:07,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-03 02:59:07,954 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:07,954 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:07,955 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:07,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:07,955 INFO L82 PathProgramCache]: Analyzing trace with hash -108136485, now seen corresponding path program 1 times [2019-10-03 02:59:07,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:07,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:07,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:07,961 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:08,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:08,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:08,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:59:08,070 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:08,071 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:59:08,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:59:08,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:59:08,072 INFO L87 Difference]: Start difference. First operand 207 states and 235 transitions. Second operand 8 states. [2019-10-03 02:59:08,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:08,108 INFO L93 Difference]: Finished difference Result 214 states and 242 transitions. [2019-10-03 02:59:08,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:59:08,109 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-10-03 02:59:08,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:08,110 INFO L225 Difference]: With dead ends: 214 [2019-10-03 02:59:08,111 INFO L226 Difference]: Without dead ends: 214 [2019-10-03 02:59:08,111 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:59:08,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2019-10-03 02:59:08,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 211. [2019-10-03 02:59:08,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-10-03 02:59:08,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 239 transitions. [2019-10-03 02:59:08,130 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 239 transitions. Word has length 103 [2019-10-03 02:59:08,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:08,130 INFO L475 AbstractCegarLoop]: Abstraction has 211 states and 239 transitions. [2019-10-03 02:59:08,130 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:59:08,131 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 239 transitions. [2019-10-03 02:59:08,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-03 02:59:08,134 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:08,134 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:08,134 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:08,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:08,135 INFO L82 PathProgramCache]: Analyzing trace with hash 861444538, now seen corresponding path program 1 times [2019-10-03 02:59:08,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:08,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:08,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:08,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:08,139 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:08,256 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:08,257 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:08,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:59:08,257 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:08,257 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:59:08,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:59:08,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:59:08,258 INFO L87 Difference]: Start difference. First operand 211 states and 239 transitions. Second operand 4 states. [2019-10-03 02:59:08,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:08,496 INFO L93 Difference]: Finished difference Result 413 states and 486 transitions. [2019-10-03 02:59:08,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:59:08,496 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2019-10-03 02:59:08,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:08,499 INFO L225 Difference]: With dead ends: 413 [2019-10-03 02:59:08,499 INFO L226 Difference]: Without dead ends: 413 [2019-10-03 02:59:08,500 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:59:08,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-03 02:59:08,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 404. [2019-10-03 02:59:08,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2019-10-03 02:59:08,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 469 transitions. [2019-10-03 02:59:08,519 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 469 transitions. Word has length 103 [2019-10-03 02:59:08,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:08,520 INFO L475 AbstractCegarLoop]: Abstraction has 404 states and 469 transitions. [2019-10-03 02:59:08,520 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:59:08,520 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 469 transitions. [2019-10-03 02:59:08,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-10-03 02:59:08,522 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:08,522 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:08,523 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:08,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:08,523 INFO L82 PathProgramCache]: Analyzing trace with hash 2005328992, now seen corresponding path program 1 times [2019-10-03 02:59:08,523 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:08,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:08,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:08,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:08,526 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:08,702 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:08,703 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:08,703 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-03 02:59:08,703 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:08,704 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-03 02:59:08,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-03 02:59:08,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:59:08,705 INFO L87 Difference]: Start difference. First operand 404 states and 469 transitions. Second operand 9 states. [2019-10-03 02:59:09,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:09,810 INFO L93 Difference]: Finished difference Result 764 states and 884 transitions. [2019-10-03 02:59:09,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-03 02:59:09,811 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 107 [2019-10-03 02:59:09,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:09,815 INFO L225 Difference]: With dead ends: 764 [2019-10-03 02:59:09,816 INFO L226 Difference]: Without dead ends: 764 [2019-10-03 02:59:09,816 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:59:09,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2019-10-03 02:59:09,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 686. [2019-10-03 02:59:09,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 686 states. [2019-10-03 02:59:09,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 787 transitions. [2019-10-03 02:59:09,845 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 787 transitions. Word has length 107 [2019-10-03 02:59:09,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:09,846 INFO L475 AbstractCegarLoop]: Abstraction has 686 states and 787 transitions. [2019-10-03 02:59:09,846 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-03 02:59:09,846 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 787 transitions. [2019-10-03 02:59:09,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-03 02:59:09,849 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:09,849 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:09,849 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:09,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:09,850 INFO L82 PathProgramCache]: Analyzing trace with hash 2092455891, now seen corresponding path program 1 times [2019-10-03 02:59:09,850 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:09,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:09,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:09,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:09,853 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:10,026 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 23 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-03 02:59:10,027 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:59:10,027 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:59:10,028 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2019-10-03 02:59:10,032 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [99], [103], [104], [105], [108], [110], [113], [120], [123], [124], [125], [134], [138], [142], [145], [148], [150], [156], [158], [164], [167], [186], [188], [193], [196], [197], [198], [199], [201], [206], [208], [209], [213], [216], [220], [226], [253], [254], [257], [261], [266], [270], [271], [274], [275], [276], [278], [279], [280], [282], [285], [287], [290], [293], [302], [304], [305], [306], [330], [332], [333], [351], [352], [402], [403], [413], [421], [422], [423], [424], [425], [426], [427], [428], [429], [461], [462], [463], [464], [467], [468], [469], [470], [475], [476], [479], [480], [481], [482], [483], [484], [485], [486], [487], [488], [489], [490], [491], [492], [497], [498], [499], [500], [501], [502], [503], [507], [508], [509], [511], [512], [517], [518], [519] [2019-10-03 02:59:10,086 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:59:10,086 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:59:10,175 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:59:10,177 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 71 root evaluator evaluations with a maximum evaluation depth of 0. Performed 71 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-10-03 02:59:10,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:10,183 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:59:10,240 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:59:10,241 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:59:10,248 INFO L420 sIntCurrentIteration]: We unified 150 AI predicates to 150 [2019-10-03 02:59:10,249 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:59:10,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:59:10,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:59:10,250 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:10,250 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:59:10,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:59:10,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:10,251 INFO L87 Difference]: Start difference. First operand 686 states and 787 transitions. Second operand 2 states. [2019-10-03 02:59:10,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:10,252 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:59:10,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:59:10,255 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 151 [2019-10-03 02:59:10,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:10,255 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:59:10,255 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:59:10,256 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 150 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 02:59:10,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:59:10,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:59:10,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:59:10,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:59:10,257 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 151 [2019-10-03 02:59:10,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:10,257 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:59:10,257 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:59:10,257 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:59:10,257 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:59:10,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:59:10 BoogieIcfgContainer [2019-10-03 02:59:10,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:59:10,268 INFO L168 Benchmark]: Toolchain (without parser) took 7566.60 ms. Allocated memory was 140.0 MB in the beginning and 318.2 MB in the end (delta: 178.3 MB). Free memory was 85.4 MB in the beginning and 200.0 MB in the end (delta: -114.6 MB). Peak memory consumption was 63.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:10,269 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 104.7 MB in the beginning and 104.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-03 02:59:10,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.95 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 85.2 MB in the beginning and 165.9 MB in the end (delta: -80.8 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:10,272 INFO L168 Benchmark]: Boogie Preprocessor took 91.71 ms. Allocated memory is still 200.3 MB. Free memory was 165.9 MB in the beginning and 161.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:10,278 INFO L168 Benchmark]: RCFGBuilder took 1244.94 ms. Allocated memory was 200.3 MB in the beginning and 225.4 MB in the end (delta: 25.2 MB). Free memory was 161.7 MB in the beginning and 191.8 MB in the end (delta: -30.1 MB). Peak memory consumption was 89.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:10,279 INFO L168 Benchmark]: TraceAbstraction took 5573.71 ms. Allocated memory was 225.4 MB in the beginning and 318.2 MB in the end (delta: 92.8 MB). Free memory was 191.8 MB in the beginning and 200.0 MB in the end (delta: -8.2 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:10,291 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 104.7 MB in the beginning and 104.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 648.95 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 85.2 MB in the beginning and 165.9 MB in the end (delta: -80.8 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.71 ms. Allocated memory is still 200.3 MB. Free memory was 165.9 MB in the beginning and 161.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1244.94 ms. Allocated memory was 200.3 MB in the beginning and 225.4 MB in the end (delta: 25.2 MB). Free memory was 161.7 MB in the beginning and 191.8 MB in the end (delta: -30.1 MB). Peak memory consumption was 89.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5573.71 ms. Allocated memory was 225.4 MB in the beginning and 318.2 MB in the end (delta: 92.8 MB). Free memory was 191.8 MB in the beginning and 200.0 MB in the end (delta: -8.2 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 201]: 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, 236 locations, 1 error locations. SAFE Result, 5.5s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1434 SDtfs, 1127 SDslu, 2792 SDs, 0 SdLazy, 1644 SolverSat, 446 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=686occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.86 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 130 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 911 NumberOfCodeBlocks, 911 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 901 ConstructedInterpolants, 0 QuantifiedInterpolants, 145285 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 61/66 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...