java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:24,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:24,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:24,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:24,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:24,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:24,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:24,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:24,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:24,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:24,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:24,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:24,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:24,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:24,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:24,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:24,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:24,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:24,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:24,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:24,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:24,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:24,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:24,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:24,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:24,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:24,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:24,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:24,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:24,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:24,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:24,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:24,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:24,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:24,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:24,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:24,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:24,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:24,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:24,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:24,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:24,606 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 [2019-09-20 13:31:24,634 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:24,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:24,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:24,636 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:24,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:24,637 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:24,637 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:24,637 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:24,637 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:24,638 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:24,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:24,640 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:24,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:24,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:24,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:24,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:24,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:24,642 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:24,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:24,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:24,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:24,643 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:24,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:24,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:24,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:24,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:24,645 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:24,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:24,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:24,645 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:24,702 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:24,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:24,723 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:24,724 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:24,725 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:24,726 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2019-09-20 13:31:24,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b296fe7/67dff16d2acf43349fa429b35addc96b/FLAG4cc47da96 [2019-09-20 13:31:25,323 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:25,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2019-09-20 13:31:25,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b296fe7/67dff16d2acf43349fa429b35addc96b/FLAG4cc47da96 [2019-09-20 13:31:25,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b296fe7/67dff16d2acf43349fa429b35addc96b [2019-09-20 13:31:25,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:25,605 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:25,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:25,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:25,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:25,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:25" (1/1) ... [2019-09-20 13:31:25,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39779103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:25, skipping insertion in model container [2019-09-20 13:31:25,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:25" (1/1) ... [2019-09-20 13:31:25,620 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:25,676 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:26,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:26,102 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:26,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:26,284 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:26,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26 WrapperNode [2019-09-20 13:31:26,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:26,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:26,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:26,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:26,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (1/1) ... [2019-09-20 13:31:26,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (1/1) ... [2019-09-20 13:31:26,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (1/1) ... [2019-09-20 13:31:26,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (1/1) ... [2019-09-20 13:31:26,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (1/1) ... [2019-09-20 13:31:26,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (1/1) ... [2019-09-20 13:31:26,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (1/1) ... [2019-09-20 13:31:26,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:26,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:26,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:26,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:26,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (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 [2019-09-20 13:31:26,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:26,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:26,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:26,485 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:26,485 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:26,485 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:26,485 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:26,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:26,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:26,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:26,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:26,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:26,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:26,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:26,487 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:26,487 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:26,487 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:26,487 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:31:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:26,489 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:26,489 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:26,489 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:26,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:26,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:26,490 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:26,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:31:26,490 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:31:26,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:26,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:26,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:26,491 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:26,491 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:26,491 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:26,491 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:26,491 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:31:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:31:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:26,498 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:26,498 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:26,498 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:26,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:26,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:26,498 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:31:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:26,500 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:26,500 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:26,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:26,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:26,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:27,563 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:27,563 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:27,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:27 BoogieIcfgContainer [2019-09-20 13:31:27,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:27,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:27,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:27,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:27,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:25" (1/3) ... [2019-09-20 13:31:27,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13afee7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:27, skipping insertion in model container [2019-09-20 13:31:27,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (2/3) ... [2019-09-20 13:31:27,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13afee7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:27, skipping insertion in model container [2019-09-20 13:31:27,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:27" (3/3) ... [2019-09-20 13:31:27,575 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2019-09-20 13:31:27,586 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:27,595 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:27,613 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:27,643 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:27,643 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:27,644 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:27,644 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:27,644 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:27,644 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:27,644 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:27,644 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:27,664 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2019-09-20 13:31:27,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:31:27,679 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:27,680 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] [2019-09-20 13:31:27,683 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:27,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:27,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1468621358, now seen corresponding path program 1 times [2019-09-20 13:31:27,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:27,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:27,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:27,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:27,752 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:28,121 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:28,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:28,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:28,124 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:28,132 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:28,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:28,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:28,147 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2019-09-20 13:31:28,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:28,189 INFO L93 Difference]: Finished difference Result 130 states and 151 transitions. [2019-09-20 13:31:28,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:28,192 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-20 13:31:28,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:28,212 INFO L225 Difference]: With dead ends: 130 [2019-09-20 13:31:28,212 INFO L226 Difference]: Without dead ends: 119 [2019-09-20 13:31:28,214 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 [2019-09-20 13:31:28,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-09-20 13:31:28,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-09-20 13:31:28,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-09-20 13:31:28,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 139 transitions. [2019-09-20 13:31:28,300 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 139 transitions. Word has length 59 [2019-09-20 13:31:28,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:28,301 INFO L475 AbstractCegarLoop]: Abstraction has 119 states and 139 transitions. [2019-09-20 13:31:28,301 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:28,301 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 139 transitions. [2019-09-20 13:31:28,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:31:28,310 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:28,310 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] [2019-09-20 13:31:28,311 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:28,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:28,312 INFO L82 PathProgramCache]: Analyzing trace with hash 732022184, now seen corresponding path program 1 times [2019-09-20 13:31:28,312 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:28,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:28,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:28,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:28,315 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:28,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:28,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:28,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:28,492 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:28,495 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:28,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:28,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:28,497 INFO L87 Difference]: Start difference. First operand 119 states and 139 transitions. Second operand 3 states. [2019-09-20 13:31:28,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:28,524 INFO L93 Difference]: Finished difference Result 110 states and 127 transitions. [2019-09-20 13:31:28,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:28,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-20 13:31:28,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:28,532 INFO L225 Difference]: With dead ends: 110 [2019-09-20 13:31:28,532 INFO L226 Difference]: Without dead ends: 110 [2019-09-20 13:31:28,534 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 [2019-09-20 13:31:28,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-09-20 13:31:28,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-09-20 13:31:28,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-09-20 13:31:28,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 127 transitions. [2019-09-20 13:31:28,554 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 127 transitions. Word has length 60 [2019-09-20 13:31:28,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:28,555 INFO L475 AbstractCegarLoop]: Abstraction has 110 states and 127 transitions. [2019-09-20 13:31:28,555 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:28,555 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 127 transitions. [2019-09-20 13:31:28,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-20 13:31:28,563 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:28,563 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] [2019-09-20 13:31:28,564 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:28,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:28,564 INFO L82 PathProgramCache]: Analyzing trace with hash -69452161, now seen corresponding path program 1 times [2019-09-20 13:31:28,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:28,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:28,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:28,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:28,567 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:28,731 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:28,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:28,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:28,733 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:28,734 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:28,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:28,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:28,735 INFO L87 Difference]: Start difference. First operand 110 states and 127 transitions. Second operand 7 states. [2019-09-20 13:31:29,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:29,069 INFO L93 Difference]: Finished difference Result 110 states and 126 transitions. [2019-09-20 13:31:29,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:29,070 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-20 13:31:29,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:29,073 INFO L225 Difference]: With dead ends: 110 [2019-09-20 13:31:29,073 INFO L226 Difference]: Without dead ends: 110 [2019-09-20 13:31:29,074 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:31:29,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-09-20 13:31:29,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-09-20 13:31:29,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-09-20 13:31:29,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 126 transitions. [2019-09-20 13:31:29,095 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 126 transitions. Word has length 65 [2019-09-20 13:31:29,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:29,104 INFO L475 AbstractCegarLoop]: Abstraction has 110 states and 126 transitions. [2019-09-20 13:31:29,104 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:29,104 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 126 transitions. [2019-09-20 13:31:29,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-20 13:31:29,106 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:29,106 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] [2019-09-20 13:31:29,106 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:29,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:29,107 INFO L82 PathProgramCache]: Analyzing trace with hash -752044170, now seen corresponding path program 1 times [2019-09-20 13:31:29,109 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:29,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:29,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:29,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:29,113 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:29,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:29,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:29,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:31:29,321 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:29,322 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:31:29,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:31:29,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:31:29,324 INFO L87 Difference]: Start difference. First operand 110 states and 126 transitions. Second operand 5 states. [2019-09-20 13:31:29,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:29,826 INFO L93 Difference]: Finished difference Result 205 states and 241 transitions. [2019-09-20 13:31:29,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:29,827 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2019-09-20 13:31:29,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:29,830 INFO L225 Difference]: With dead ends: 205 [2019-09-20 13:31:29,830 INFO L226 Difference]: Without dead ends: 205 [2019-09-20 13:31:29,830 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:29,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2019-09-20 13:31:29,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 186. [2019-09-20 13:31:29,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2019-09-20 13:31:29,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 215 transitions. [2019-09-20 13:31:29,859 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 215 transitions. Word has length 73 [2019-09-20 13:31:29,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:29,859 INFO L475 AbstractCegarLoop]: Abstraction has 186 states and 215 transitions. [2019-09-20 13:31:29,860 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:31:29,860 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 215 transitions. [2019-09-20 13:31:29,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-20 13:31:29,864 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:29,864 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] [2019-09-20 13:31:29,865 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:29,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:29,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1770960597, now seen corresponding path program 1 times [2019-09-20 13:31:29,866 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:29,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:29,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:29,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:29,869 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:30,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:31:30,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:30,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:30,043 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:30,044 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:30,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:30,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:30,045 INFO L87 Difference]: Start difference. First operand 186 states and 215 transitions. Second operand 7 states. [2019-09-20 13:31:30,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:30,695 INFO L93 Difference]: Finished difference Result 204 states and 240 transitions. [2019-09-20 13:31:30,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:31:30,696 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-09-20 13:31:30,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:30,699 INFO L225 Difference]: With dead ends: 204 [2019-09-20 13:31:30,699 INFO L226 Difference]: Without dead ends: 204 [2019-09-20 13:31:30,700 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:31:30,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2019-09-20 13:31:30,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 185. [2019-09-20 13:31:30,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-09-20 13:31:30,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 212 transitions. [2019-09-20 13:31:30,727 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 212 transitions. Word has length 87 [2019-09-20 13:31:30,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:30,727 INFO L475 AbstractCegarLoop]: Abstraction has 185 states and 212 transitions. [2019-09-20 13:31:30,727 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:30,728 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 212 transitions. [2019-09-20 13:31:30,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:31:30,729 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:30,729 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] [2019-09-20 13:31:30,729 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:30,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:30,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1107726217, now seen corresponding path program 1 times [2019-09-20 13:31:30,730 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:30,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:30,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:30,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:30,733 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:30,821 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:30,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:30,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:31:30,821 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:30,822 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:31:30,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:31:30,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:31:30,822 INFO L87 Difference]: Start difference. First operand 185 states and 212 transitions. Second operand 6 states. [2019-09-20 13:31:30,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:30,863 INFO L93 Difference]: Finished difference Result 190 states and 217 transitions. [2019-09-20 13:31:30,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:30,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2019-09-20 13:31:30,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:30,868 INFO L225 Difference]: With dead ends: 190 [2019-09-20 13:31:30,869 INFO L226 Difference]: Without dead ends: 190 [2019-09-20 13:31:30,869 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 [2019-09-20 13:31:30,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2019-09-20 13:31:30,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2019-09-20 13:31:30,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-09-20 13:31:30,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 217 transitions. [2019-09-20 13:31:30,880 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 217 transitions. Word has length 88 [2019-09-20 13:31:30,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:30,880 INFO L475 AbstractCegarLoop]: Abstraction has 190 states and 217 transitions. [2019-09-20 13:31:30,881 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:31:30,881 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 217 transitions. [2019-09-20 13:31:30,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:31:30,882 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:30,882 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] [2019-09-20 13:31:30,883 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:30,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:30,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1801037685, now seen corresponding path program 1 times [2019-09-20 13:31:30,883 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:30,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:30,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:30,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:30,886 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:30,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:30,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:30,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:31:30,984 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:30,986 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:31:30,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:31:30,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:30,987 INFO L87 Difference]: Start difference. First operand 190 states and 217 transitions. Second operand 8 states. [2019-09-20 13:31:31,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:31,023 INFO L93 Difference]: Finished difference Result 197 states and 224 transitions. [2019-09-20 13:31:31,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:31:31,023 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2019-09-20 13:31:31,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:31,025 INFO L225 Difference]: With dead ends: 197 [2019-09-20 13:31:31,025 INFO L226 Difference]: Without dead ends: 197 [2019-09-20 13:31:31,026 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 [2019-09-20 13:31:31,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-09-20 13:31:31,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2019-09-20 13:31:31,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2019-09-20 13:31:31,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 221 transitions. [2019-09-20 13:31:31,043 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 221 transitions. Word has length 88 [2019-09-20 13:31:31,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:31,044 INFO L475 AbstractCegarLoop]: Abstraction has 194 states and 221 transitions. [2019-09-20 13:31:31,044 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:31:31,044 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 221 transitions. [2019-09-20 13:31:31,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:31:31,045 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:31,046 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] [2019-09-20 13:31:31,046 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:31,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:31,046 INFO L82 PathProgramCache]: Analyzing trace with hash 310252684, now seen corresponding path program 1 times [2019-09-20 13:31:31,047 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:31,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:31,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:31,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:31,050 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:31,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:31,159 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:31,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:31:31,159 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:31,160 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:31:31,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:31:31,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:31,162 INFO L87 Difference]: Start difference. First operand 194 states and 221 transitions. Second operand 4 states. [2019-09-20 13:31:31,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:31,432 INFO L93 Difference]: Finished difference Result 396 states and 468 transitions. [2019-09-20 13:31:31,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:31:31,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2019-09-20 13:31:31,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:31,439 INFO L225 Difference]: With dead ends: 396 [2019-09-20 13:31:31,440 INFO L226 Difference]: Without dead ends: 396 [2019-09-20 13:31:31,440 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:31,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2019-09-20 13:31:31,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 387. [2019-09-20 13:31:31,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2019-09-20 13:31:31,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 451 transitions. [2019-09-20 13:31:31,461 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 451 transitions. Word has length 88 [2019-09-20 13:31:31,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:31,461 INFO L475 AbstractCegarLoop]: Abstraction has 387 states and 451 transitions. [2019-09-20 13:31:31,461 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:31:31,462 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 451 transitions. [2019-09-20 13:31:31,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-20 13:31:31,463 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:31,463 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] [2019-09-20 13:31:31,464 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:31,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:31,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1394429222, now seen corresponding path program 1 times [2019-09-20 13:31:31,464 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:31,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:31,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:31,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:31,467 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:31,679 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:31,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:31,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:31:31,680 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:31,681 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:31:31,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:31:31,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:31:31,682 INFO L87 Difference]: Start difference. First operand 387 states and 451 transitions. Second operand 9 states. [2019-09-20 13:31:32,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:32,666 INFO L93 Difference]: Finished difference Result 730 states and 848 transitions. [2019-09-20 13:31:32,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-20 13:31:32,667 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2019-09-20 13:31:32,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:32,671 INFO L225 Difference]: With dead ends: 730 [2019-09-20 13:31:32,671 INFO L226 Difference]: Without dead ends: 730 [2019-09-20 13:31:32,672 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-09-20 13:31:32,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2019-09-20 13:31:32,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 652. [2019-09-20 13:31:32,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2019-09-20 13:31:32,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 751 transitions. [2019-09-20 13:31:32,702 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 751 transitions. Word has length 92 [2019-09-20 13:31:32,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:32,703 INFO L475 AbstractCegarLoop]: Abstraction has 652 states and 751 transitions. [2019-09-20 13:31:32,703 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:31:32,703 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 751 transitions. [2019-09-20 13:31:32,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-09-20 13:31:32,705 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:32,706 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:32,706 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:32,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:32,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1563029790, now seen corresponding path program 1 times [2019-09-20 13:31:32,706 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:32,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:32,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:32,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:32,709 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 23 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-09-20 13:31:32,905 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:31:32,905 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:31:32,908 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2019-09-20 13:31:32,911 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [99], [103], [104], [105], [108], [110], [113], [120], [123], [124], [125], [134], [138], [142], [145], [148], [150], [156], [158], [164], [167], [186], [187], [188], [189], [190], [192], [197], [199], [200], [206], [209], [213], [219], [248], [252], [257], [261], [262], [265], [266], [267], [269], [270], [271], [273], [276], [278], [281], [284], [293], [295], [296], [297], [391], [392], [402], [410], [411], [412], [413], [414], [415], [416], [417], [418], [450], [451], [452], [453], [456], [457], [458], [459], [464], [465], [468], [469], [470], [471], [472], [473], [474], [475], [476], [477], [482], [483], [484], [485], [486], [487], [488], [492], [493], [494], [502], [503], [504] [2019-09-20 13:31:32,959 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:31:32,959 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:31:33,047 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:31:33,049 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. [2019-09-20 13:31:33,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:33,053 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:31:33,138 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:31:33,138 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:31:33,146 INFO L420 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2019-09-20 13:31:33,146 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:31:33,147 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:31:33,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-20 13:31:33,147 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:33,148 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:33,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:33,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:33,148 INFO L87 Difference]: Start difference. First operand 652 states and 751 transitions. Second operand 2 states. [2019-09-20 13:31:33,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:33,149 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:31:33,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:33,149 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-09-20 13:31:33,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:33,149 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:31:33,149 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:33,151 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:33,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:33,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:33,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:33,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:33,152 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 136 [2019-09-20 13:31:33,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:33,152 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:33,152 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:33,152 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:33,152 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:33,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:33 BoogieIcfgContainer [2019-09-20 13:31:33,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:33,161 INFO L168 Benchmark]: Toolchain (without parser) took 7554.98 ms. Allocated memory was 134.2 MB in the beginning and 316.1 MB in the end (delta: 181.9 MB). Free memory was 88.2 MB in the beginning and 246.1 MB in the end (delta: -157.9 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:33,162 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 134.2 MB. Free memory was 108.4 MB in the beginning and 108.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:33,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.23 ms. Allocated memory was 134.2 MB in the beginning and 201.9 MB in the end (delta: 67.6 MB). Free memory was 88.0 MB in the beginning and 166.8 MB in the end (delta: -78.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:33,165 INFO L168 Benchmark]: Boogie Preprocessor took 123.92 ms. Allocated memory is still 201.9 MB. Free memory was 166.8 MB in the beginning and 162.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:33,171 INFO L168 Benchmark]: RCFGBuilder took 1153.84 ms. Allocated memory was 201.9 MB in the beginning and 228.1 MB in the end (delta: 26.2 MB). Free memory was 162.5 MB in the beginning and 193.1 MB in the end (delta: -30.7 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:33,172 INFO L168 Benchmark]: TraceAbstraction took 5591.77 ms. Allocated memory was 228.1 MB in the beginning and 316.1 MB in the end (delta: 88.1 MB). Free memory was 193.1 MB in the beginning and 246.1 MB in the end (delta: -53.0 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:33,178 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 134.2 MB. Free memory was 108.4 MB in the beginning and 108.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 679.23 ms. Allocated memory was 134.2 MB in the beginning and 201.9 MB in the end (delta: 67.6 MB). Free memory was 88.0 MB in the beginning and 166.8 MB in the end (delta: -78.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.92 ms. Allocated memory is still 201.9 MB. Free memory was 166.8 MB in the beginning and 162.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1153.84 ms. Allocated memory was 201.9 MB in the beginning and 228.1 MB in the end (delta: 26.2 MB). Free memory was 162.5 MB in the beginning and 193.1 MB in the end (delta: -30.7 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5591.77 ms. Allocated memory was 228.1 MB in the beginning and 316.1 MB in the end (delta: 88.1 MB). Free memory was 193.1 MB in the beginning and 246.1 MB in the end (delta: -53.0 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 82]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 229 locations, 1 error locations. SAFE Result, 5.5s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1299 SDtfs, 934 SDslu, 2533 SDs, 0 SdLazy, 1488 SolverSat, 347 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=652occurred 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, 0.8888888888888888 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 128 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 836 NumberOfCodeBlocks, 836 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 826 ConstructedInterpolants, 0 QuantifiedInterpolants, 124120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 61/66 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...