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_spec2_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:57:40,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:57:40,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:57:40,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:57:40,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:57:40,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:57:40,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:57:40,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:57:40,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:57:40,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:57:40,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:57:40,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:57:40,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:57:40,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:57:40,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:57:40,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:57:40,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:57:40,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:57:40,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:57:40,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:57:40,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:57:40,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:57:40,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:57:40,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:57:40,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:57:40,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:57:40,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:57:40,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:57:40,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:57:40,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:57:40,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:57:40,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:57:40,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:57:40,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:57:40,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:57:40,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:57:40,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:57:40,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:57:40,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:57:40,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:57:40,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:57:40,720 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 02:57:40,735 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:57:40,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:57:40,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:57:40,736 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:57:40,737 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:57:40,737 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:57:40,737 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:57:40,737 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:57:40,738 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:57:40,738 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:57:40,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:57:40,739 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:57:40,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:57:40,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:57:40,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:57:40,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:57:40,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:57:40,740 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:57:40,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:57:40,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:57:40,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:57:40,741 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:57:40,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:57:40,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:57:40,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:57:40,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:57:40,742 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:57:40,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:57:40,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:57:40,742 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:57:40,773 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:57:40,788 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:57:40,792 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:57:40,793 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:57:40,794 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:57:40,795 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product52.cil.c [2019-10-03 02:57:40,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14a4396fd/6c07881facee4957b8e75f15c3f7ad42/FLAG64bc46e8d [2019-10-03 02:57:41,379 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:57:41,381 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product52.cil.c [2019-10-03 02:57:41,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14a4396fd/6c07881facee4957b8e75f15c3f7ad42/FLAG64bc46e8d [2019-10-03 02:57:41,697 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14a4396fd/6c07881facee4957b8e75f15c3f7ad42 [2019-10-03 02:57:41,709 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:57:41,710 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:57:41,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:41,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:57:41,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:57:41,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:41" (1/1) ... [2019-10-03 02:57:41,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d82875c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:41, skipping insertion in model container [2019-10-03 02:57:41,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:41" (1/1) ... [2019-10-03 02:57:41,730 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:57:41,798 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:57:42,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:42,310 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:57:42,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:42,491 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:57:42,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:42 WrapperNode [2019-10-03 02:57:42,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:42,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:57:42,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:57:42,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:57:42,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:42" (1/1) ... [2019-10-03 02:57:42,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:42" (1/1) ... [2019-10-03 02:57:42,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:42" (1/1) ... [2019-10-03 02:57:42,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:42" (1/1) ... [2019-10-03 02:57:42,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:42" (1/1) ... [2019-10-03 02:57:42,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:42" (1/1) ... [2019-10-03 02:57:42,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:42" (1/1) ... [2019-10-03 02:57:42,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:57:42,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:57:42,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:57:42,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:57:42,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:42" (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 02:57:42,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:57:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:57:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:57:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:57:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:57:42,640 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:57:42,640 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:57:42,640 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:57:42,640 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:57:42,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:57:42,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:57:42,641 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:57:42,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:57:42,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:57:42,641 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-03 02:57:42,641 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:57:42,642 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:57:42,642 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:57:42,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:57:42,642 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:57:42,642 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:57:42,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-03 02:57:42,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-03 02:57:42,643 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:57:42,643 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:57:42,643 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:57:42,643 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:57:42,643 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:57:42,644 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:57:42,644 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:57:42,644 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:57:42,644 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:57:42,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:57:42,644 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:57:42,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:57:42,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:42,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:42,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:42,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:57:42,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:57:42,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:57:42,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:57:42,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:57:42,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:57:42,646 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:57:42,646 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:57:42,647 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:57:42,647 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:57:42,647 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-03 02:57:42,647 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:57:42,647 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:57:42,647 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:57:42,647 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:57:42,648 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:57:42,648 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:57:42,648 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:57:42,648 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:57:42,648 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:57:42,648 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:57:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:57:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:57:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-03 02:57:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:57:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:57:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:57:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:57:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:57:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:57:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:57:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:57:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:57:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-03 02:57:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:57:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:57:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:57:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:57:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:57:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:57:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:57:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:57:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:57:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:57:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:57:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:57:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:57:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:57:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:57:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:57:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:57:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:57:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:57:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:57:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:57:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:57:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:57:43,826 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:57:43,826 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:57:43,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:43 BoogieIcfgContainer [2019-10-03 02:57:43,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:57:43,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:57:43,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:57:43,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:57:43,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:57:41" (1/3) ... [2019-10-03 02:57:43,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a4b8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:43, skipping insertion in model container [2019-10-03 02:57:43,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:42" (2/3) ... [2019-10-03 02:57:43,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a4b8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:43, skipping insertion in model container [2019-10-03 02:57:43,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:43" (3/3) ... [2019-10-03 02:57:43,836 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2019-10-03 02:57:43,845 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:57:43,854 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:57:43,875 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:57:43,900 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:57:43,900 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:57:43,900 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:57:43,900 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:57:43,901 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:57:43,901 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:57:43,901 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:57:43,901 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:57:43,921 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2019-10-03 02:57:43,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:57:43,934 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:43,935 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:43,938 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:43,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:43,944 INFO L82 PathProgramCache]: Analyzing trace with hash 422856307, now seen corresponding path program 1 times [2019-10-03 02:57:43,946 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:44,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:44,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:44,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:44,009 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:44,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:44,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:44,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:57:44,357 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:44,363 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:57:44,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:57:44,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:44,389 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 2 states. [2019-10-03 02:57:44,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:44,416 INFO L93 Difference]: Finished difference Result 154 states and 180 transitions. [2019-10-03 02:57:44,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:57:44,418 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-10-03 02:57:44,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:44,432 INFO L225 Difference]: With dead ends: 154 [2019-10-03 02:57:44,432 INFO L226 Difference]: Without dead ends: 143 [2019-10-03 02:57:44,434 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 02:57:44,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-10-03 02:57:44,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2019-10-03 02:57:44,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-10-03 02:57:44,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2019-10-03 02:57:44,489 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 51 [2019-10-03 02:57:44,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:44,489 INFO L475 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2019-10-03 02:57:44,489 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:57:44,490 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2019-10-03 02:57:44,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:57:44,493 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:44,494 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:44,494 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:44,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:44,494 INFO L82 PathProgramCache]: Analyzing trace with hash 83135735, now seen corresponding path program 1 times [2019-10-03 02:57:44,495 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:44,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:44,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:44,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:44,498 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:44,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:44,621 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:44,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:57:44,621 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:44,624 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:57:44,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:57:44,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:44,625 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 3 states. [2019-10-03 02:57:44,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:44,657 INFO L93 Difference]: Finished difference Result 134 states and 156 transitions. [2019-10-03 02:57:44,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:57:44,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-03 02:57:44,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:44,665 INFO L225 Difference]: With dead ends: 134 [2019-10-03 02:57:44,665 INFO L226 Difference]: Without dead ends: 134 [2019-10-03 02:57:44,666 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 02:57:44,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-10-03 02:57:44,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-10-03 02:57:44,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-03 02:57:44,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2019-10-03 02:57:44,695 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 52 [2019-10-03 02:57:44,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:44,698 INFO L475 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2019-10-03 02:57:44,698 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:57:44,698 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2019-10-03 02:57:44,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-03 02:57:44,702 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:44,703 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:44,703 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:44,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:44,705 INFO L82 PathProgramCache]: Analyzing trace with hash 522733086, now seen corresponding path program 1 times [2019-10-03 02:57:44,705 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:44,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:44,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:44,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:44,708 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:44,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:44,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:44,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:57:44,881 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:44,882 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:57:44,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:57:44,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:44,883 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand 7 states. [2019-10-03 02:57:45,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:45,409 INFO L93 Difference]: Finished difference Result 291 states and 350 transitions. [2019-10-03 02:57:45,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:57:45,410 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-10-03 02:57:45,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:45,415 INFO L225 Difference]: With dead ends: 291 [2019-10-03 02:57:45,415 INFO L226 Difference]: Without dead ends: 291 [2019-10-03 02:57:45,416 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 02:57:45,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2019-10-03 02:57:45,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 279. [2019-10-03 02:57:45,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2019-10-03 02:57:45,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 338 transitions. [2019-10-03 02:57:45,468 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 338 transitions. Word has length 57 [2019-10-03 02:57:45,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:45,468 INFO L475 AbstractCegarLoop]: Abstraction has 279 states and 338 transitions. [2019-10-03 02:57:45,469 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:57:45,469 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 338 transitions. [2019-10-03 02:57:45,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-03 02:57:45,475 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:45,475 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:45,476 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:45,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:45,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1095308141, now seen corresponding path program 1 times [2019-10-03 02:57:45,476 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:45,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:45,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:45,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:45,482 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:45,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:45,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:45,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:45,645 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:45,646 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:45,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:45,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:45,646 INFO L87 Difference]: Start difference. First operand 279 states and 338 transitions. Second operand 6 states. [2019-10-03 02:57:45,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:45,883 INFO L93 Difference]: Finished difference Result 512 states and 622 transitions. [2019-10-03 02:57:45,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:45,884 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-10-03 02:57:45,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:45,892 INFO L225 Difference]: With dead ends: 512 [2019-10-03 02:57:45,892 INFO L226 Difference]: Without dead ends: 512 [2019-10-03 02:57:45,892 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:57:45,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2019-10-03 02:57:45,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 506. [2019-10-03 02:57:45,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 506 states. [2019-10-03 02:57:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 616 transitions. [2019-10-03 02:57:45,926 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 616 transitions. Word has length 62 [2019-10-03 02:57:45,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:45,927 INFO L475 AbstractCegarLoop]: Abstraction has 506 states and 616 transitions. [2019-10-03 02:57:45,927 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:45,927 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 616 transitions. [2019-10-03 02:57:45,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-03 02:57:45,931 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:45,931 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:45,932 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:45,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:45,932 INFO L82 PathProgramCache]: Analyzing trace with hash -656052983, now seen corresponding path program 1 times [2019-10-03 02:57:45,932 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:45,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:45,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:45,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:45,938 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:46,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:46,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:46,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:57:46,085 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:46,086 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:57:46,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:57:46,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:46,087 INFO L87 Difference]: Start difference. First operand 506 states and 616 transitions. Second operand 7 states. [2019-10-03 02:57:46,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:46,825 INFO L93 Difference]: Finished difference Result 833 states and 1058 transitions. [2019-10-03 02:57:46,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:57:46,826 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-10-03 02:57:46,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:46,832 INFO L225 Difference]: With dead ends: 833 [2019-10-03 02:57:46,832 INFO L226 Difference]: Without dead ends: 833 [2019-10-03 02:57:46,833 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:57:46,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2019-10-03 02:57:46,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 735. [2019-10-03 02:57:46,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2019-10-03 02:57:46,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 891 transitions. [2019-10-03 02:57:46,878 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 891 transitions. Word has length 66 [2019-10-03 02:57:46,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:46,878 INFO L475 AbstractCegarLoop]: Abstraction has 735 states and 891 transitions. [2019-10-03 02:57:46,878 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:57:46,878 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 891 transitions. [2019-10-03 02:57:46,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-03 02:57:46,881 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:46,881 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:46,882 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:46,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:46,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1934115710, now seen corresponding path program 1 times [2019-10-03 02:57:46,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:46,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:46,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:46,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:46,885 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:46,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:47,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:47,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:47,000 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:47,001 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:47,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:47,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:47,002 INFO L87 Difference]: Start difference. First operand 735 states and 891 transitions. Second operand 6 states. [2019-10-03 02:57:47,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:47,035 INFO L93 Difference]: Finished difference Result 755 states and 911 transitions. [2019-10-03 02:57:47,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:57:47,035 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2019-10-03 02:57:47,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:47,039 INFO L225 Difference]: With dead ends: 755 [2019-10-03 02:57:47,040 INFO L226 Difference]: Without dead ends: 755 [2019-10-03 02:57:47,040 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 02:57:47,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2019-10-03 02:57:47,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 755. [2019-10-03 02:57:47,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2019-10-03 02:57:47,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 911 transitions. [2019-10-03 02:57:47,075 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 911 transitions. Word has length 89 [2019-10-03 02:57:47,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:47,075 INFO L475 AbstractCegarLoop]: Abstraction has 755 states and 911 transitions. [2019-10-03 02:57:47,076 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:47,076 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 911 transitions. [2019-10-03 02:57:47,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-03 02:57:47,078 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:47,078 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:47,078 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:47,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:47,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1232515836, now seen corresponding path program 1 times [2019-10-03 02:57:47,079 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:47,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:47,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:47,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:47,082 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:47,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:47,167 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:47,167 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:57:47,167 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:47,168 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:57:47,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:57:47,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:57:47,169 INFO L87 Difference]: Start difference. First operand 755 states and 911 transitions. Second operand 8 states. [2019-10-03 02:57:47,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:47,208 INFO L93 Difference]: Finished difference Result 783 states and 939 transitions. [2019-10-03 02:57:47,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:47,208 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2019-10-03 02:57:47,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:47,213 INFO L225 Difference]: With dead ends: 783 [2019-10-03 02:57:47,213 INFO L226 Difference]: Without dead ends: 783 [2019-10-03 02:57:47,214 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 02:57:47,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2019-10-03 02:57:47,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 771. [2019-10-03 02:57:47,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 771 states. [2019-10-03 02:57:47,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 927 transitions. [2019-10-03 02:57:47,244 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 927 transitions. Word has length 89 [2019-10-03 02:57:47,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:47,245 INFO L475 AbstractCegarLoop]: Abstraction has 771 states and 927 transitions. [2019-10-03 02:57:47,245 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:57:47,245 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 927 transitions. [2019-10-03 02:57:47,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-03 02:57:47,247 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:47,247 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:47,247 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:47,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:47,248 INFO L82 PathProgramCache]: Analyzing trace with hash 492965061, now seen corresponding path program 1 times [2019-10-03 02:57:47,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:47,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:47,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:47,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:47,251 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:47,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:47,337 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:47,337 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:57:47,338 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:47,339 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:57:47,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:57:47,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:57:47,340 INFO L87 Difference]: Start difference. First operand 771 states and 927 transitions. Second operand 4 states. [2019-10-03 02:57:47,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:47,600 INFO L93 Difference]: Finished difference Result 1758 states and 2199 transitions. [2019-10-03 02:57:47,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:57:47,601 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2019-10-03 02:57:47,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:47,612 INFO L225 Difference]: With dead ends: 1758 [2019-10-03 02:57:47,612 INFO L226 Difference]: Without dead ends: 1758 [2019-10-03 02:57:47,612 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 02:57:47,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2019-10-03 02:57:47,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1727. [2019-10-03 02:57:47,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1727 states. [2019-10-03 02:57:47,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2127 transitions. [2019-10-03 02:57:47,706 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2127 transitions. Word has length 89 [2019-10-03 02:57:47,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:47,707 INFO L475 AbstractCegarLoop]: Abstraction has 1727 states and 2127 transitions. [2019-10-03 02:57:47,707 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:57:47,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2127 transitions. [2019-10-03 02:57:47,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-03 02:57:47,711 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:47,711 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:47,712 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:47,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:47,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1931984341, now seen corresponding path program 1 times [2019-10-03 02:57:47,712 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:47,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:47,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:47,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:47,716 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:47,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:47,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:47,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:57:47,780 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:47,781 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:57:47,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:57:47,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:47,782 INFO L87 Difference]: Start difference. First operand 1727 states and 2127 transitions. Second operand 3 states. [2019-10-03 02:57:47,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:47,842 INFO L93 Difference]: Finished difference Result 2739 states and 3475 transitions. [2019-10-03 02:57:47,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:57:47,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2019-10-03 02:57:47,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:47,864 INFO L225 Difference]: With dead ends: 2739 [2019-10-03 02:57:47,864 INFO L226 Difference]: Without dead ends: 2739 [2019-10-03 02:57:47,865 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 02:57:47,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2019-10-03 02:57:47,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 2553. [2019-10-03 02:57:47,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2553 states. [2019-10-03 02:57:47,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2553 states to 2553 states and 3253 transitions. [2019-10-03 02:57:47,995 INFO L78 Accepts]: Start accepts. Automaton has 2553 states and 3253 transitions. Word has length 93 [2019-10-03 02:57:47,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:47,996 INFO L475 AbstractCegarLoop]: Abstraction has 2553 states and 3253 transitions. [2019-10-03 02:57:47,996 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:57:47,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2553 states and 3253 transitions. [2019-10-03 02:57:48,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-03 02:57:48,007 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:48,008 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-03 02:57:48,008 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:48,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:48,008 INFO L82 PathProgramCache]: Analyzing trace with hash 931197596, now seen corresponding path program 1 times [2019-10-03 02:57:48,008 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:48,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:48,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:48,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:48,011 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:48,105 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-03 02:57:48,106 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:57:48,106 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:57:48,107 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 159 with the following transitions: [2019-10-03 02:57:48,110 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [92], [94], [97], [101], [102], [103], [119], [123], [124], [125], [128], [130], [136], [140], [143], [144], [145], [154], [158], [162], [165], [170], [173], [176], [178], [184], [190], [198], [199], [200], [202], [205], [207], [210], [213], [216], [224], [234], [235], [236], [237], [238], [240], [245], [247], [248], [253], [256], [260], [266], [293], [294], [299], [301], [304], [307], [309], [312], [319], [322], [325], [329], [330], [333], [334], [335], [429], [430], [435], [437], [440], [448], [449], [450], [451], [452], [453], [454], [455], [456], [490], [491], [492], [493], [496], [497], [498], [499], [500], [501], [502], [503], [508], [509], [512], [513], [514], [515], [516], [518], [519], [520], [521], [522], [523], [524], [525], [530], [531], [532], [533], [536], [537], [540], [541], [542], [550], [551], [552] [2019-10-03 02:57:48,168 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:57:48,169 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:57:48,252 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:57:48,254 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-10-03 02:57:48,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:48,258 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:57:48,360 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:57:48,361 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:57:48,371 INFO L420 sIntCurrentIteration]: We unified 157 AI predicates to 157 [2019-10-03 02:57:48,372 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:57:48,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:57:48,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2019-10-03 02:57:48,373 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:48,374 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:57:48,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:57:48,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:48,374 INFO L87 Difference]: Start difference. First operand 2553 states and 3253 transitions. Second operand 2 states. [2019-10-03 02:57:48,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:48,375 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:57:48,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:57:48,375 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 158 [2019-10-03 02:57:48,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:48,375 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:57:48,376 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:57:48,377 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 157 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 02:57:48,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:57:48,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:57:48,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:57:48,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:57:48,378 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 158 [2019-10-03 02:57:48,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:48,379 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:57:48,379 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:57:48,379 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:57:48,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:57:48,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:57:48 BoogieIcfgContainer [2019-10-03 02:57:48,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:57:48,389 INFO L168 Benchmark]: Toolchain (without parser) took 6676.52 ms. Allocated memory was 132.1 MB in the beginning and 323.0 MB in the end (delta: 190.8 MB). Free memory was 87.3 MB in the beginning and 108.0 MB in the end (delta: -20.7 MB). Peak memory consumption was 170.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:48,390 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:57:48,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.32 ms. Allocated memory was 132.1 MB in the beginning and 200.3 MB in the end (delta: 68.2 MB). Free memory was 87.1 MB in the beginning and 165.0 MB in the end (delta: -77.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:48,395 INFO L168 Benchmark]: Boogie Preprocessor took 84.49 ms. Allocated memory is still 200.3 MB. Free memory was 165.0 MB in the beginning and 160.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:48,403 INFO L168 Benchmark]: RCFGBuilder took 1251.24 ms. Allocated memory was 200.3 MB in the beginning and 223.3 MB in the end (delta: 23.1 MB). Free memory was 160.5 MB in the beginning and 189.6 MB in the end (delta: -29.1 MB). Peak memory consumption was 90.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:48,404 INFO L168 Benchmark]: TraceAbstraction took 4556.13 ms. Allocated memory was 223.3 MB in the beginning and 323.0 MB in the end (delta: 99.6 MB). Free memory was 189.6 MB in the beginning and 108.0 MB in the end (delta: 81.6 MB). Peak memory consumption was 181.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:48,417 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 132.1 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 780.32 ms. Allocated memory was 132.1 MB in the beginning and 200.3 MB in the end (delta: 68.2 MB). Free memory was 87.1 MB in the beginning and 165.0 MB in the end (delta: -77.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.49 ms. Allocated memory is still 200.3 MB. Free memory was 165.0 MB in the beginning and 160.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1251.24 ms. Allocated memory was 200.3 MB in the beginning and 223.3 MB in the end (delta: 23.1 MB). Free memory was 160.5 MB in the beginning and 189.6 MB in the end (delta: -29.1 MB). Peak memory consumption was 90.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4556.13 ms. Allocated memory was 223.3 MB in the beginning and 323.0 MB in the end (delta: 99.6 MB). Free memory was 189.6 MB in the beginning and 108.0 MB in the end (delta: 81.6 MB). Peak memory consumption was 181.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 995]: 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 43 procedures, 250 locations, 1 error locations. SAFE Result, 4.4s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1601 SDtfs, 969 SDslu, 3464 SDs, 0 SdLazy, 946 SolverSat, 181 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2553occurred 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, 0.8280254777070064 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 345 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 806 NumberOfCodeBlocks, 806 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 796 ConstructedInterpolants, 0 QuantifiedInterpolants, 110342 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 36/40 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...