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_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:39,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:39,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:39,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:39,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:39,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:39,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:39,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:39,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:39,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:39,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:39,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:39,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:39,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:39,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:39,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:39,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:39,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:39,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:39,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:39,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:39,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:39,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:39,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:39,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:39,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:39,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:39,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:39,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:39,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:39,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:39,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:39,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:39,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:39,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:39,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:39,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:39,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:39,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:39,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:39,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:39,693 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 13:31:39,709 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:39,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:39,709 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:39,710 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:39,710 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:39,710 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:39,711 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:39,711 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:39,711 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:39,711 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:39,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:39,712 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:39,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:39,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:39,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:39,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:39,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:39,713 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:39,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:39,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:39,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:39,714 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:39,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:39,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:39,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:39,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:39,715 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:39,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:39,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:39,716 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:39,762 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:39,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:39,782 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:39,785 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:39,786 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:39,787 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2019-09-20 13:31:39,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abd2170ed/ea3fbcc5b3754c8e94174fa77eb48e63/FLAG25bf38e20 [2019-09-20 13:31:40,394 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:40,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2019-09-20 13:31:40,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abd2170ed/ea3fbcc5b3754c8e94174fa77eb48e63/FLAG25bf38e20 [2019-09-20 13:31:40,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abd2170ed/ea3fbcc5b3754c8e94174fa77eb48e63 [2019-09-20 13:31:40,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:40,680 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:40,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:40,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:40,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:40,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:40" (1/1) ... [2019-09-20 13:31:40,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4f8dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:40, skipping insertion in model container [2019-09-20 13:31:40,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:40" (1/1) ... [2019-09-20 13:31:40,698 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:40,764 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:41,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:41,241 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:41,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:41,398 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:41,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:41 WrapperNode [2019-09-20 13:31:41,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:41,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:41,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:41,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:41,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:41" (1/1) ... [2019-09-20 13:31:41,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:41" (1/1) ... [2019-09-20 13:31:41,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:41" (1/1) ... [2019-09-20 13:31:41,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:41" (1/1) ... [2019-09-20 13:31:41,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:41" (1/1) ... [2019-09-20 13:31:41,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:41" (1/1) ... [2019-09-20 13:31:41,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:41" (1/1) ... [2019-09-20 13:31:41,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:41,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:41,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:41,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:41,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:41" (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 13:31:41,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:41,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:41,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:41,571 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:41,571 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:41,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:31:41,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:31:41,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:41,573 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:31:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:31:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:31:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:31:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:31:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:31:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:41,584 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:41,584 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:41,584 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:31:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:31:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:31:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:31:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:42,854 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:42,854 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:42,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:42 BoogieIcfgContainer [2019-09-20 13:31:42,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:42,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:42,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:42,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:42,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:40" (1/3) ... [2019-09-20 13:31:42,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6652c722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:42, skipping insertion in model container [2019-09-20 13:31:42,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:41" (2/3) ... [2019-09-20 13:31:42,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6652c722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:42, skipping insertion in model container [2019-09-20 13:31:42,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:42" (3/3) ... [2019-09-20 13:31:42,867 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product54.cil.c [2019-09-20 13:31:42,877 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:42,890 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:42,907 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:42,942 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:42,943 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:42,943 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:42,943 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:42,943 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:42,944 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:42,945 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:42,945 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:42,971 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states. [2019-09-20 13:31:42,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:31:42,993 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:42,994 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 13:31:42,997 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:43,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:43,004 INFO L82 PathProgramCache]: Analyzing trace with hash -404445524, now seen corresponding path program 1 times [2019-09-20 13:31:43,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:43,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:43,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:43,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:43,067 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:43,399 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 13:31:43,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:43,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:43,402 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:43,407 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:43,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:43,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:43,425 INFO L87 Difference]: Start difference. First operand 203 states. Second operand 2 states. [2019-09-20 13:31:43,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:43,459 INFO L93 Difference]: Finished difference Result 171 states and 200 transitions. [2019-09-20 13:31:43,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:43,460 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-20 13:31:43,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:43,482 INFO L225 Difference]: With dead ends: 171 [2019-09-20 13:31:43,482 INFO L226 Difference]: Without dead ends: 160 [2019-09-20 13:31:43,486 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 13:31:43,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-09-20 13:31:43,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2019-09-20 13:31:43,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-09-20 13:31:43,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 188 transitions. [2019-09-20 13:31:43,574 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 188 transitions. Word has length 59 [2019-09-20 13:31:43,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:43,575 INFO L475 AbstractCegarLoop]: Abstraction has 160 states and 188 transitions. [2019-09-20 13:31:43,575 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:43,575 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 188 transitions. [2019-09-20 13:31:43,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:31:43,579 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:43,579 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 13:31:43,580 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:43,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:43,580 INFO L82 PathProgramCache]: Analyzing trace with hash -315023676, now seen corresponding path program 1 times [2019-09-20 13:31:43,580 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:43,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:43,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:43,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:43,583 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:43,725 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 13:31:43,725 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:43,725 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:43,726 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:43,727 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:43,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:43,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:43,728 INFO L87 Difference]: Start difference. First operand 160 states and 188 transitions. Second operand 3 states. [2019-09-20 13:31:43,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:43,746 INFO L93 Difference]: Finished difference Result 151 states and 176 transitions. [2019-09-20 13:31:43,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:43,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-20 13:31:43,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:43,749 INFO L225 Difference]: With dead ends: 151 [2019-09-20 13:31:43,749 INFO L226 Difference]: Without dead ends: 151 [2019-09-20 13:31:43,750 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 13:31:43,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2019-09-20 13:31:43,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2019-09-20 13:31:43,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-09-20 13:31:43,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 176 transitions. [2019-09-20 13:31:43,766 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 176 transitions. Word has length 60 [2019-09-20 13:31:43,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:43,766 INFO L475 AbstractCegarLoop]: Abstraction has 151 states and 176 transitions. [2019-09-20 13:31:43,767 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:43,767 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 176 transitions. [2019-09-20 13:31:43,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-20 13:31:43,770 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:43,771 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 13:31:43,771 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:43,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:43,771 INFO L82 PathProgramCache]: Analyzing trace with hash 649722396, now seen corresponding path program 1 times [2019-09-20 13:31:43,771 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:43,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:43,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:43,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:43,775 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:43,927 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 13:31:43,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:43,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:43,928 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:43,929 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:43,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:43,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:43,930 INFO L87 Difference]: Start difference. First operand 151 states and 176 transitions. Second operand 7 states. [2019-09-20 13:31:44,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:44,356 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2019-09-20 13:31:44,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:44,357 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-20 13:31:44,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:44,363 INFO L225 Difference]: With dead ends: 151 [2019-09-20 13:31:44,363 INFO L226 Difference]: Without dead ends: 151 [2019-09-20 13:31:44,364 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 13:31:44,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2019-09-20 13:31:44,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2019-09-20 13:31:44,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-09-20 13:31:44,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 175 transitions. [2019-09-20 13:31:44,389 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 175 transitions. Word has length 65 [2019-09-20 13:31:44,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:44,393 INFO L475 AbstractCegarLoop]: Abstraction has 151 states and 175 transitions. [2019-09-20 13:31:44,393 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:44,393 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 175 transitions. [2019-09-20 13:31:44,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-20 13:31:44,400 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:44,400 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] [2019-09-20 13:31:44,401 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:44,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:44,401 INFO L82 PathProgramCache]: Analyzing trace with hash 2071838844, now seen corresponding path program 1 times [2019-09-20 13:31:44,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:44,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:44,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:44,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:44,406 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:44,580 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 13:31:44,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:44,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:31:44,581 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:44,583 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:31:44,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:31:44,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:31:44,584 INFO L87 Difference]: Start difference. First operand 151 states and 175 transitions. Second operand 5 states. [2019-09-20 13:31:45,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:45,165 INFO L93 Difference]: Finished difference Result 265 states and 306 transitions. [2019-09-20 13:31:45,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:31:45,166 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2019-09-20 13:31:45,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:45,172 INFO L225 Difference]: With dead ends: 265 [2019-09-20 13:31:45,172 INFO L226 Difference]: Without dead ends: 265 [2019-09-20 13:31:45,173 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 [2019-09-20 13:31:45,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2019-09-20 13:31:45,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 246. [2019-09-20 13:31:45,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-09-20 13:31:45,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 280 transitions. [2019-09-20 13:31:45,214 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 280 transitions. Word has length 83 [2019-09-20 13:31:45,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:45,214 INFO L475 AbstractCegarLoop]: Abstraction has 246 states and 280 transitions. [2019-09-20 13:31:45,215 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:31:45,215 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 280 transitions. [2019-09-20 13:31:45,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-09-20 13:31:45,219 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:45,219 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] [2019-09-20 13:31:45,221 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:45,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:45,222 INFO L82 PathProgramCache]: Analyzing trace with hash 477615551, now seen corresponding path program 1 times [2019-09-20 13:31:45,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:45,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:45,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:45,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:45,227 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:45,368 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 13:31:45,368 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:45,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:45,368 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:45,369 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:45,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:45,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:45,371 INFO L87 Difference]: Start difference. First operand 246 states and 280 transitions. Second operand 7 states. [2019-09-20 13:31:46,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:46,075 INFO L93 Difference]: Finished difference Result 264 states and 306 transitions. [2019-09-20 13:31:46,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:31:46,077 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 97 [2019-09-20 13:31:46,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:46,081 INFO L225 Difference]: With dead ends: 264 [2019-09-20 13:31:46,081 INFO L226 Difference]: Without dead ends: 264 [2019-09-20 13:31:46,082 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 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 13:31:46,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-09-20 13:31:46,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 245. [2019-09-20 13:31:46,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2019-09-20 13:31:46,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 277 transitions. [2019-09-20 13:31:46,095 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 277 transitions. Word has length 97 [2019-09-20 13:31:46,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:46,096 INFO L475 AbstractCegarLoop]: Abstraction has 245 states and 277 transitions. [2019-09-20 13:31:46,096 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:46,096 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 277 transitions. [2019-09-20 13:31:46,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-20 13:31:46,098 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:46,098 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] [2019-09-20 13:31:46,098 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:46,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:46,099 INFO L82 PathProgramCache]: Analyzing trace with hash 115684108, now seen corresponding path program 1 times [2019-09-20 13:31:46,099 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:46,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:46,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:46,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:46,102 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:46,198 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 13:31:46,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:46,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:31:46,199 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:46,200 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:31:46,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:31:46,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:31:46,200 INFO L87 Difference]: Start difference. First operand 245 states and 277 transitions. Second operand 6 states. [2019-09-20 13:31:46,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:46,229 INFO L93 Difference]: Finished difference Result 250 states and 282 transitions. [2019-09-20 13:31:46,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:46,230 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2019-09-20 13:31:46,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:46,234 INFO L225 Difference]: With dead ends: 250 [2019-09-20 13:31:46,234 INFO L226 Difference]: Without dead ends: 250 [2019-09-20 13:31:46,235 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 13:31:46,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2019-09-20 13:31:46,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2019-09-20 13:31:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2019-09-20 13:31:46,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 282 transitions. [2019-09-20 13:31:46,245 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 282 transitions. Word has length 98 [2019-09-20 13:31:46,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:46,246 INFO L475 AbstractCegarLoop]: Abstraction has 250 states and 282 transitions. [2019-09-20 13:31:46,246 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:31:46,247 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 282 transitions. [2019-09-20 13:31:46,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-20 13:31:46,248 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:46,248 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] [2019-09-20 13:31:46,248 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:46,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:46,249 INFO L82 PathProgramCache]: Analyzing trace with hash 43297550, now seen corresponding path program 1 times [2019-09-20 13:31:46,249 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:46,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:46,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:46,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:46,252 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:46,336 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 13:31:46,336 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:46,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:31:46,336 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:46,337 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:31:46,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:31:46,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:46,338 INFO L87 Difference]: Start difference. First operand 250 states and 282 transitions. Second operand 8 states. [2019-09-20 13:31:46,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:46,379 INFO L93 Difference]: Finished difference Result 257 states and 289 transitions. [2019-09-20 13:31:46,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:31:46,381 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2019-09-20 13:31:46,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:46,383 INFO L225 Difference]: With dead ends: 257 [2019-09-20 13:31:46,383 INFO L226 Difference]: Without dead ends: 257 [2019-09-20 13:31:46,384 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 13:31:46,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2019-09-20 13:31:46,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 254. [2019-09-20 13:31:46,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-09-20 13:31:46,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 286 transitions. [2019-09-20 13:31:46,394 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 286 transitions. Word has length 98 [2019-09-20 13:31:46,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:46,395 INFO L475 AbstractCegarLoop]: Abstraction has 254 states and 286 transitions. [2019-09-20 13:31:46,395 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:31:46,395 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 286 transitions. [2019-09-20 13:31:46,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-20 13:31:46,396 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:46,396 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] [2019-09-20 13:31:46,397 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:46,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:46,397 INFO L82 PathProgramCache]: Analyzing trace with hash 373063311, now seen corresponding path program 1 times [2019-09-20 13:31:46,397 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:46,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:46,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:46,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:46,400 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:46,490 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 13:31:46,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:46,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:31:46,490 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:46,491 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:31:46,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:31:46,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:46,494 INFO L87 Difference]: Start difference. First operand 254 states and 286 transitions. Second operand 4 states. [2019-09-20 13:31:46,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:46,746 INFO L93 Difference]: Finished difference Result 522 states and 610 transitions. [2019-09-20 13:31:46,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:31:46,746 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2019-09-20 13:31:46,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:46,751 INFO L225 Difference]: With dead ends: 522 [2019-09-20 13:31:46,751 INFO L226 Difference]: Without dead ends: 522 [2019-09-20 13:31:46,752 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 13:31:46,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2019-09-20 13:31:46,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 513. [2019-09-20 13:31:46,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 513 states. [2019-09-20 13:31:46,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 593 transitions. [2019-09-20 13:31:46,788 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 593 transitions. Word has length 98 [2019-09-20 13:31:46,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:46,788 INFO L475 AbstractCegarLoop]: Abstraction has 513 states and 593 transitions. [2019-09-20 13:31:46,788 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:31:46,789 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 593 transitions. [2019-09-20 13:31:46,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-20 13:31:46,790 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:46,790 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] [2019-09-20 13:31:46,791 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:46,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:46,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1661296137, now seen corresponding path program 1 times [2019-09-20 13:31:46,791 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:46,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:46,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:46,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:46,793 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:46,985 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 13:31:46,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:46,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:31:46,986 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:46,986 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:31:46,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:31:46,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:31:46,987 INFO L87 Difference]: Start difference. First operand 513 states and 593 transitions. Second operand 9 states. [2019-09-20 13:31:48,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:48,081 INFO L93 Difference]: Finished difference Result 936 states and 1084 transitions. [2019-09-20 13:31:48,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-20 13:31:48,083 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2019-09-20 13:31:48,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:48,087 INFO L225 Difference]: With dead ends: 936 [2019-09-20 13:31:48,088 INFO L226 Difference]: Without dead ends: 936 [2019-09-20 13:31:48,088 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 13:31:48,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2019-09-20 13:31:48,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 852. [2019-09-20 13:31:48,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 852 states. [2019-09-20 13:31:48,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 973 transitions. [2019-09-20 13:31:48,126 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 973 transitions. Word has length 102 [2019-09-20 13:31:48,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:48,127 INFO L475 AbstractCegarLoop]: Abstraction has 852 states and 973 transitions. [2019-09-20 13:31:48,127 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:31:48,127 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 973 transitions. [2019-09-20 13:31:48,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-09-20 13:31:48,130 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:48,130 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:48,131 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:48,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:48,131 INFO L82 PathProgramCache]: Analyzing trace with hash -577396182, now seen corresponding path program 1 times [2019-09-20 13:31:48,132 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:48,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:48,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:48,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:48,135 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:48,281 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-09-20 13:31:48,282 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:31:48,282 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:31:48,283 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 181 with the following transitions: [2019-09-20 13:31:48,285 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [85], [88], [92], [93], [94], [110], [114], [115], [116], [119], [121], [127], [131], [134], [135], [136], [145], [149], [153], [156], [159], [161], [167], [169], [175], [178], [188], [189], [199], [200], [201], [202], [203], [205], [210], [212], [213], [214], [215], [219], [222], [226], [232], [261], [265], [268], [271], [273], [276], [283], [286], [289], [293], [294], [297], [300], [302], [308], [312], [315], [316], [317], [318], [320], [321], [322], [324], [327], [329], [332], [335], [344], [346], [347], [348], [372], [374], [375], [442], [443], [453], [461], [462], [463], [464], [465], [466], [467], [468], [469], [501], [502], [503], [504], [507], [508], [509], [510], [511], [512], [517], [518], [521], [522], [523], [524], [525], [526], [527], [528], [529], [530], [535], [536], [537], [538], [541], [542], [543], [544], [547], [548], [549], [550], [551], [552], [553], [554], [555], [556], [557], [561], [562], [563], [565], [566], [571], [572], [573] [2019-09-20 13:31:48,329 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:31:48,329 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:31:48,399 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:31:48,400 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 70 root evaluator evaluations with a maximum evaluation depth of 0. Performed 70 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-20 13:31:48,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:48,405 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:31:48,461 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:31:48,461 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:31:48,466 INFO L420 sIntCurrentIteration]: We unified 179 AI predicates to 179 [2019-09-20 13:31:48,466 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:31:48,467 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:31:48,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-20 13:31:48,467 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:48,468 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:48,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:48,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:48,469 INFO L87 Difference]: Start difference. First operand 852 states and 973 transitions. Second operand 2 states. [2019-09-20 13:31:48,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:48,469 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:31:48,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:48,469 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 180 [2019-09-20 13:31:48,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:48,470 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:31:48,470 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:48,470 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 179 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 13:31:48,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:48,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:48,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:48,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:48,471 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 180 [2019-09-20 13:31:48,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:48,472 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:48,472 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:48,472 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:48,472 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:48,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:48 BoogieIcfgContainer [2019-09-20 13:31:48,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:48,480 INFO L168 Benchmark]: Toolchain (without parser) took 7798.41 ms. Allocated memory was 137.9 MB in the beginning and 340.3 MB in the end (delta: 202.4 MB). Free memory was 84.4 MB in the beginning and 200.8 MB in the end (delta: -116.4 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:48,480 INFO L168 Benchmark]: CDTParser took 1.00 ms. Allocated memory is still 137.9 MB. Free memory was 103.8 MB in the beginning and 103.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:48,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.11 ms. Allocated memory was 137.9 MB in the beginning and 198.2 MB in the end (delta: 60.3 MB). Free memory was 84.2 MB in the beginning and 162.5 MB in the end (delta: -78.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:48,482 INFO L168 Benchmark]: Boogie Preprocessor took 93.53 ms. Allocated memory is still 198.2 MB. Free memory was 162.5 MB in the beginning and 158.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:48,483 INFO L168 Benchmark]: RCFGBuilder took 1363.22 ms. Allocated memory was 198.2 MB in the beginning and 219.2 MB in the end (delta: 21.0 MB). Free memory was 158.1 MB in the beginning and 186.7 MB in the end (delta: -28.6 MB). Peak memory consumption was 92.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:48,484 INFO L168 Benchmark]: TraceAbstraction took 5618.92 ms. Allocated memory was 219.2 MB in the beginning and 340.3 MB in the end (delta: 121.1 MB). Free memory was 186.7 MB in the beginning and 200.8 MB in the end (delta: -14.1 MB). Peak memory consumption was 107.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:48,489 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00 ms. Allocated memory is still 137.9 MB. Free memory was 103.8 MB in the beginning and 103.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 717.11 ms. Allocated memory was 137.9 MB in the beginning and 198.2 MB in the end (delta: 60.3 MB). Free memory was 84.2 MB in the beginning and 162.5 MB in the end (delta: -78.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.53 ms. Allocated memory is still 198.2 MB. Free memory was 162.5 MB in the beginning and 158.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1363.22 ms. Allocated memory was 198.2 MB in the beginning and 219.2 MB in the end (delta: 21.0 MB). Free memory was 158.1 MB in the beginning and 186.7 MB in the end (delta: -28.6 MB). Peak memory consumption was 92.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5618.92 ms. Allocated memory was 219.2 MB in the beginning and 340.3 MB in the end (delta: 121.1 MB). Free memory was 186.7 MB in the beginning and 200.8 MB in the end (delta: -14.1 MB). Peak memory consumption was 107.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 206]: 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 44 procedures, 259 locations, 1 error locations. SAFE Result, 5.5s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1784 SDtfs, 1322 SDslu, 3528 SDs, 0 SdLazy, 1988 SolverSat, 496 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 290 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=852occurred 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, 0.8044692737430168 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 134 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 940 NumberOfCodeBlocks, 940 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 930 ConstructedInterpolants, 0 QuantifiedInterpolants, 163586 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 65/74 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...