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_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:08:36,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:36,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:36,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:36,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:36,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:36,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:36,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:36,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:36,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:36,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:36,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:36,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:36,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:36,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:36,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:36,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:36,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:36,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:36,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:36,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:36,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:36,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:36,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:36,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:36,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:36,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:36,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:36,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:36,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:36,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:36,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:36,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:36,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:36,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:36,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:36,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:36,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:36,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:36,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:36,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:36,714 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:08:36,732 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:36,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:36,733 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:36,733 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:36,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:36,734 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:36,734 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:36,734 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:36,734 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:36,734 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:36,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:36,736 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:36,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:36,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:36,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:36,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:36,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:36,737 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:36,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:36,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:36,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:36,738 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:36,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:36,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:36,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:36,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:36,740 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:36,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:36,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:36,741 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:36,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:36,807 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:36,812 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:36,814 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:36,814 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:36,815 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product61.cil.c [2019-09-16 17:08:36,895 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24532df79/35c780073f194e0591b46f8436d3ec93/FLAGfb6a68f47 [2019-09-16 17:08:37,394 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:37,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product61.cil.c [2019-09-16 17:08:37,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24532df79/35c780073f194e0591b46f8436d3ec93/FLAGfb6a68f47 [2019-09-16 17:08:37,709 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24532df79/35c780073f194e0591b46f8436d3ec93 [2019-09-16 17:08:37,724 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:37,725 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:37,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:37,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:37,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:37,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:37" (1/1) ... [2019-09-16 17:08:37,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@348ede7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:37, skipping insertion in model container [2019-09-16 17:08:37,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:37" (1/1) ... [2019-09-16 17:08:37,745 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:37,818 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:38,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:38,291 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:38,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:38,478 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:38,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:38 WrapperNode [2019-09-16 17:08:38,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:38,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:38,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:38,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:38,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:38" (1/1) ... [2019-09-16 17:08:38,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:38" (1/1) ... [2019-09-16 17:08:38,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:38" (1/1) ... [2019-09-16 17:08:38,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:38" (1/1) ... [2019-09-16 17:08:38,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:38" (1/1) ... [2019-09-16 17:08:38,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:38" (1/1) ... [2019-09-16 17:08:38,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:38" (1/1) ... [2019-09-16 17:08:38,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:38,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:38,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:38,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:38,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:38,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:38,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:38,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:38,682 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:38,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:38,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:38,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:38,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:38,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-16 17:08:38,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:08:38,688 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:38,688 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:08:38,688 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:08:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:08:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:08:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:38,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:38,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:38,690 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:38,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-16 17:08:38,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:08:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:38,693 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:38,693 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:38,693 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:38,693 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:38,693 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:38,693 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:38,694 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:38,694 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:38,694 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:38,694 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:38,694 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:38,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:38,696 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:38,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:38,698 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:38,698 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:38,698 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:38,698 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:38,699 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:38,700 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-16 17:08:38,700 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:08:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:08:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-16 17:08:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:08:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:08:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:08:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:08:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:40,028 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:40,028 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:40,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:40 BoogieIcfgContainer [2019-09-16 17:08:40,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:40,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:40,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:40,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:40,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:37" (1/3) ... [2019-09-16 17:08:40,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@787d49ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:40, skipping insertion in model container [2019-09-16 17:08:40,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:38" (2/3) ... [2019-09-16 17:08:40,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@787d49ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:40, skipping insertion in model container [2019-09-16 17:08:40,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:40" (3/3) ... [2019-09-16 17:08:40,043 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product61.cil.c [2019-09-16 17:08:40,055 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:40,066 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:40,084 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:40,127 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:40,128 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:40,129 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:40,129 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:40,129 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:40,130 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:40,130 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:40,131 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:40,159 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-09-16 17:08:40,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:08:40,182 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:40,184 INFO L407 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] [2019-09-16 17:08:40,188 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:40,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:40,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1299073538, now seen corresponding path program 1 times [2019-09-16 17:08:40,197 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:40,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:40,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:40,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:40,257 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:40,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:40,631 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:40,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:40,631 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:40,637 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:40,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:40,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:40,657 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 2 states. [2019-09-16 17:08:40,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:40,691 INFO L93 Difference]: Finished difference Result 166 states and 197 transitions. [2019-09-16 17:08:40,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:40,693 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-16 17:08:40,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:40,707 INFO L225 Difference]: With dead ends: 166 [2019-09-16 17:08:40,708 INFO L226 Difference]: Without dead ends: 155 [2019-09-16 17:08:40,709 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:40,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-09-16 17:08:40,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2019-09-16 17:08:40,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-09-16 17:08:40,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 185 transitions. [2019-09-16 17:08:40,798 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 185 transitions. Word has length 51 [2019-09-16 17:08:40,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:40,798 INFO L475 AbstractCegarLoop]: Abstraction has 155 states and 185 transitions. [2019-09-16 17:08:40,799 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:40,799 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 185 transitions. [2019-09-16 17:08:40,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:40,810 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:40,811 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:40,811 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:40,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:40,812 INFO L82 PathProgramCache]: Analyzing trace with hash -155172335, now seen corresponding path program 1 times [2019-09-16 17:08:40,812 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:40,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:40,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:40,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:40,815 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:40,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:40,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:40,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:40,970 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:40,972 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:40,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:40,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:40,973 INFO L87 Difference]: Start difference. First operand 155 states and 185 transitions. Second operand 3 states. [2019-09-16 17:08:40,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:40,989 INFO L93 Difference]: Finished difference Result 146 states and 173 transitions. [2019-09-16 17:08:40,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:40,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-16 17:08:40,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:40,992 INFO L225 Difference]: With dead ends: 146 [2019-09-16 17:08:40,992 INFO L226 Difference]: Without dead ends: 146 [2019-09-16 17:08:40,993 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:40,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-09-16 17:08:41,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-09-16 17:08:41,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-09-16 17:08:41,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 173 transitions. [2019-09-16 17:08:41,007 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 173 transitions. Word has length 52 [2019-09-16 17:08:41,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:41,008 INFO L475 AbstractCegarLoop]: Abstraction has 146 states and 173 transitions. [2019-09-16 17:08:41,008 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:41,008 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 173 transitions. [2019-09-16 17:08:41,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-16 17:08:41,012 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:41,014 INFO L407 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] [2019-09-16 17:08:41,014 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:41,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:41,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1504957008, now seen corresponding path program 1 times [2019-09-16 17:08:41,015 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:41,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:41,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:41,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:41,018 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:41,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:41,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:41,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:41,130 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:41,131 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:41,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:41,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:41,132 INFO L87 Difference]: Start difference. First operand 146 states and 173 transitions. Second operand 7 states. [2019-09-16 17:08:41,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:41,537 INFO L93 Difference]: Finished difference Result 146 states and 172 transitions. [2019-09-16 17:08:41,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:41,538 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-16 17:08:41,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:41,540 INFO L225 Difference]: With dead ends: 146 [2019-09-16 17:08:41,540 INFO L226 Difference]: Without dead ends: 146 [2019-09-16 17:08:41,541 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:08:41,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-09-16 17:08:41,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-09-16 17:08:41,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-09-16 17:08:41,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 172 transitions. [2019-09-16 17:08:41,557 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 172 transitions. Word has length 56 [2019-09-16 17:08:41,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:41,559 INFO L475 AbstractCegarLoop]: Abstraction has 146 states and 172 transitions. [2019-09-16 17:08:41,559 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:41,560 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 172 transitions. [2019-09-16 17:08:41,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-09-16 17:08:41,561 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:41,561 INFO L407 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] [2019-09-16 17:08:41,561 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:41,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:41,562 INFO L82 PathProgramCache]: Analyzing trace with hash -775636071, now seen corresponding path program 1 times [2019-09-16 17:08:41,562 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:41,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:41,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:41,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:41,566 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:41,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:41,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:41,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:08:41,746 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:41,748 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:08:41,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:08:41,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:08:41,748 INFO L87 Difference]: Start difference. First operand 146 states and 172 transitions. Second operand 5 states. [2019-09-16 17:08:42,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:42,379 INFO L93 Difference]: Finished difference Result 257 states and 298 transitions. [2019-09-16 17:08:42,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:08:42,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 74 [2019-09-16 17:08:42,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:42,383 INFO L225 Difference]: With dead ends: 257 [2019-09-16 17:08:42,383 INFO L226 Difference]: Without dead ends: 257 [2019-09-16 17:08:42,384 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:08:42,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2019-09-16 17:08:42,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 239. [2019-09-16 17:08:42,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-09-16 17:08:42,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 274 transitions. [2019-09-16 17:08:42,403 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 274 transitions. Word has length 74 [2019-09-16 17:08:42,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:42,403 INFO L475 AbstractCegarLoop]: Abstraction has 239 states and 274 transitions. [2019-09-16 17:08:42,404 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:08:42,404 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 274 transitions. [2019-09-16 17:08:42,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-16 17:08:42,405 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:42,406 INFO L407 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] [2019-09-16 17:08:42,406 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:42,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:42,407 INFO L82 PathProgramCache]: Analyzing trace with hash 2094752105, now seen corresponding path program 1 times [2019-09-16 17:08:42,407 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:42,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:42,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:42,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:42,410 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:42,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:42,547 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:42,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:42,547 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:42,548 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:42,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:42,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:42,549 INFO L87 Difference]: Start difference. First operand 239 states and 274 transitions. Second operand 6 states. [2019-09-16 17:08:42,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:42,753 INFO L93 Difference]: Finished difference Result 432 states and 495 transitions. [2019-09-16 17:08:42,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:42,753 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2019-09-16 17:08:42,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:42,758 INFO L225 Difference]: With dead ends: 432 [2019-09-16 17:08:42,758 INFO L226 Difference]: Without dead ends: 432 [2019-09-16 17:08:42,759 INFO L636 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 [2019-09-16 17:08:42,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2019-09-16 17:08:42,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 426. [2019-09-16 17:08:42,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2019-09-16 17:08:42,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 488 transitions. [2019-09-16 17:08:42,801 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 488 transitions. Word has length 88 [2019-09-16 17:08:42,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:42,802 INFO L475 AbstractCegarLoop]: Abstraction has 426 states and 488 transitions. [2019-09-16 17:08:42,802 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:42,802 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 488 transitions. [2019-09-16 17:08:42,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-16 17:08:42,805 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:42,805 INFO L407 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] [2019-09-16 17:08:42,806 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:42,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:42,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1169136517, now seen corresponding path program 1 times [2019-09-16 17:08:42,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:42,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:42,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:42,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:42,815 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:43,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:43,020 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:43,020 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:43,021 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:43,021 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:43,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:43,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:43,023 INFO L87 Difference]: Start difference. First operand 426 states and 488 transitions. Second operand 7 states. [2019-09-16 17:08:43,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:43,818 INFO L93 Difference]: Finished difference Result 455 states and 533 transitions. [2019-09-16 17:08:43,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-16 17:08:43,818 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2019-09-16 17:08:43,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:43,822 INFO L225 Difference]: With dead ends: 455 [2019-09-16 17:08:43,822 INFO L226 Difference]: Without dead ends: 455 [2019-09-16 17:08:43,823 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:08:43,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2019-09-16 17:08:43,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 425. [2019-09-16 17:08:43,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2019-09-16 17:08:43,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 485 transitions. [2019-09-16 17:08:43,843 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 485 transitions. Word has length 92 [2019-09-16 17:08:43,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:43,844 INFO L475 AbstractCegarLoop]: Abstraction has 425 states and 485 transitions. [2019-09-16 17:08:43,844 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:43,845 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 485 transitions. [2019-09-16 17:08:43,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-16 17:08:43,850 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:43,851 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:43,851 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:43,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:43,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1253770304, now seen corresponding path program 1 times [2019-09-16 17:08:43,852 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:43,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:43,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:43,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:43,857 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:43,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:08:43,959 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:43,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:43,959 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:43,960 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:43,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:43,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:43,961 INFO L87 Difference]: Start difference. First operand 425 states and 485 transitions. Second operand 6 states. [2019-09-16 17:08:43,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:43,999 INFO L93 Difference]: Finished difference Result 439 states and 499 transitions. [2019-09-16 17:08:44,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:44,000 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2019-09-16 17:08:44,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:44,003 INFO L225 Difference]: With dead ends: 439 [2019-09-16 17:08:44,003 INFO L226 Difference]: Without dead ends: 439 [2019-09-16 17:08:44,003 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:44,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2019-09-16 17:08:44,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 435. [2019-09-16 17:08:44,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2019-09-16 17:08:44,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 495 transitions. [2019-09-16 17:08:44,025 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 495 transitions. Word has length 108 [2019-09-16 17:08:44,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:44,025 INFO L475 AbstractCegarLoop]: Abstraction has 435 states and 495 transitions. [2019-09-16 17:08:44,026 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:44,026 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 495 transitions. [2019-09-16 17:08:44,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-16 17:08:44,027 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:44,028 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:44,028 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:44,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:44,028 INFO L82 PathProgramCache]: Analyzing trace with hash 685391742, now seen corresponding path program 1 times [2019-09-16 17:08:44,029 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:44,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:44,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:44,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:44,031 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:44,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:08:44,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:44,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:08:44,157 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:44,158 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:08:44,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:08:44,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:08:44,161 INFO L87 Difference]: Start difference. First operand 435 states and 495 transitions. Second operand 8 states. [2019-09-16 17:08:44,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:44,196 INFO L93 Difference]: Finished difference Result 449 states and 509 transitions. [2019-09-16 17:08:44,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:44,196 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2019-09-16 17:08:44,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:44,199 INFO L225 Difference]: With dead ends: 449 [2019-09-16 17:08:44,200 INFO L226 Difference]: Without dead ends: 449 [2019-09-16 17:08:44,201 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:08:44,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2019-09-16 17:08:44,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 443. [2019-09-16 17:08:44,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2019-09-16 17:08:44,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 503 transitions. [2019-09-16 17:08:44,220 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 503 transitions. Word has length 108 [2019-09-16 17:08:44,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:44,221 INFO L475 AbstractCegarLoop]: Abstraction has 443 states and 503 transitions. [2019-09-16 17:08:44,221 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:08:44,222 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 503 transitions. [2019-09-16 17:08:44,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-16 17:08:44,227 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:44,227 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:44,228 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:44,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:44,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1454561757, now seen corresponding path program 1 times [2019-09-16 17:08:44,228 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:44,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:44,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:44,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:44,231 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:44,352 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:08:44,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:44,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:08:44,353 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:44,354 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:08:44,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:08:44,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:08:44,354 INFO L87 Difference]: Start difference. First operand 443 states and 503 transitions. Second operand 4 states. [2019-09-16 17:08:44,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:44,574 INFO L93 Difference]: Finished difference Result 891 states and 1057 transitions. [2019-09-16 17:08:44,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:08:44,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2019-09-16 17:08:44,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:44,580 INFO L225 Difference]: With dead ends: 891 [2019-09-16 17:08:44,580 INFO L226 Difference]: Without dead ends: 891 [2019-09-16 17:08:44,581 INFO L636 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 [2019-09-16 17:08:44,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2019-09-16 17:08:44,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 876. [2019-09-16 17:08:44,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-09-16 17:08:44,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1025 transitions. [2019-09-16 17:08:44,619 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1025 transitions. Word has length 108 [2019-09-16 17:08:44,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:44,620 INFO L475 AbstractCegarLoop]: Abstraction has 876 states and 1025 transitions. [2019-09-16 17:08:44,620 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:08:44,621 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1025 transitions. [2019-09-16 17:08:44,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-16 17:08:44,624 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:44,624 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:44,624 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:44,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:44,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1438503063, now seen corresponding path program 1 times [2019-09-16 17:08:44,625 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:44,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:44,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:44,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:44,629 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:44,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-16 17:08:44,790 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:08:44,790 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:08:44,791 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 113 with the following transitions: [2019-09-16 17:08:44,793 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [114], [115], [116], [131], [134], [136], [145], [149], [153], [156], [161], [164], [169], [172], [187], [188], [191], [193], [196], [198], [201], [204], [216], [217], [227], [229], [234], [237], [240], [242], [247], [249], [250], [251], [252], [258], [262], [302], [305], [307], [310], [320], [323], [327], [328], [331], [332], [347], [350], [351], [352], [376], [378], [379], [446], [447], [452], [454], [457], [465], [466], [467], [468], [469], [470], [471], [472], [473], [513], [514], [515], [516], [517], [518], [519], [523], [524], [525], [526], [527], [529], [530], [531], [532], [533], [534], [537], [538], [539], [545], [546], [547], [548], [559], [560], [563], [564], [565], [567], [568], [573], [574], [575] [2019-09-16 17:08:44,836 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:08:44,837 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:08:44,914 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:08:44,916 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. [2019-09-16 17:08:44,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:44,920 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:08:44,973 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:08:44,973 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:08:44,977 INFO L420 sIntCurrentIteration]: We unified 111 AI predicates to 111 [2019-09-16 17:08:44,977 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:08:44,978 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:08:44,978 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-16 17:08:44,979 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:44,979 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:44,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:44,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:44,980 INFO L87 Difference]: Start difference. First operand 876 states and 1025 transitions. Second operand 2 states. [2019-09-16 17:08:44,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:44,980 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:08:44,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:44,981 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 112 [2019-09-16 17:08:44,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:44,981 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:08:44,981 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:44,982 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:44,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:44,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:44,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:44,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:44,982 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2019-09-16 17:08:44,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:44,983 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:44,983 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:44,983 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:44,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:44,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:44 BoogieIcfgContainer [2019-09-16 17:08:44,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:44,992 INFO L168 Benchmark]: Toolchain (without parser) took 7265.60 ms. Allocated memory was 138.9 MB in the beginning and 327.7 MB in the end (delta: 188.7 MB). Free memory was 85.7 MB in the beginning and 123.7 MB in the end (delta: -38.0 MB). Peak memory consumption was 150.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:44,992 INFO L168 Benchmark]: CDTParser took 1.18 ms. Allocated memory is still 138.9 MB. Free memory is still 104.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:08:44,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.78 ms. Allocated memory was 138.9 MB in the beginning and 199.8 MB in the end (delta: 60.8 MB). Free memory was 85.3 MB in the beginning and 162.2 MB in the end (delta: -77.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:44,994 INFO L168 Benchmark]: Boogie Preprocessor took 107.30 ms. Allocated memory is still 199.8 MB. Free memory was 162.2 MB in the beginning and 158.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:44,995 INFO L168 Benchmark]: RCFGBuilder took 1443.06 ms. Allocated memory was 199.8 MB in the beginning and 221.8 MB in the end (delta: 22.0 MB). Free memory was 158.5 MB in the beginning and 185.5 MB in the end (delta: -27.0 MB). Peak memory consumption was 90.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:44,996 INFO L168 Benchmark]: TraceAbstraction took 4957.55 ms. Allocated memory was 221.8 MB in the beginning and 327.7 MB in the end (delta: 105.9 MB). Free memory was 185.5 MB in the beginning and 123.7 MB in the end (delta: 61.8 MB). Peak memory consumption was 167.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:45,000 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18 ms. Allocated memory is still 138.9 MB. Free memory is still 104.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 752.78 ms. Allocated memory was 138.9 MB in the beginning and 199.8 MB in the end (delta: 60.8 MB). Free memory was 85.3 MB in the beginning and 162.2 MB in the end (delta: -77.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.30 ms. Allocated memory is still 199.8 MB. Free memory was 162.2 MB in the beginning and 158.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1443.06 ms. Allocated memory was 199.8 MB in the beginning and 221.8 MB in the end (delta: 22.0 MB). Free memory was 158.5 MB in the beginning and 185.5 MB in the end (delta: -27.0 MB). Peak memory consumption was 90.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4957.55 ms. Allocated memory was 221.8 MB in the beginning and 327.7 MB in the end (delta: 105.9 MB). Free memory was 185.5 MB in the beginning and 123.7 MB in the end (delta: 61.8 MB). Peak memory consumption was 167.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 557]: 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, 257 locations, 1 error locations. SAFE Result, 4.8s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1713 SDtfs, 928 SDslu, 3560 SDs, 0 SdLazy, 1203 SolverSat, 271 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 204 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=876occurred 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, 1.0 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 79 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 849 NumberOfCodeBlocks, 849 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 839 ConstructedInterpolants, 0 QuantifiedInterpolants, 122854 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 10/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...