java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:18,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:18,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:18,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:18,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:18,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:18,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:18,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:18,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:18,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:18,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:18,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:18,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:18,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:18,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:18,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:18,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:18,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:18,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:18,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:18,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:18,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:18,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:18,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:18,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:18,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:18,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:18,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:18,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:18,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:18,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:18,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:18,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:18,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:18,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:18,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:18,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:18,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:18,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:18,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:18,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:18,595 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 13:30:18,620 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:18,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:18,622 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:18,622 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:18,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:18,623 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:18,623 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:18,623 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:18,624 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:18,624 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:18,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:18,626 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:18,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:18,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:18,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:18,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:18,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:18,628 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:18,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:18,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:18,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:18,629 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:18,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:18,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:18,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:18,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:18,630 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:18,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:18,630 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:18,631 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:18,685 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:18,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:18,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:18,704 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:18,705 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:18,705 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2019-09-20 13:30:18,778 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109aedf61/be5316af4b45408688fb394a30726d7b/FLAG9e9dac3b7 [2019-09-20 13:30:19,368 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:19,369 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2019-09-20 13:30:19,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109aedf61/be5316af4b45408688fb394a30726d7b/FLAG9e9dac3b7 [2019-09-20 13:30:19,620 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109aedf61/be5316af4b45408688fb394a30726d7b [2019-09-20 13:30:19,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:19,633 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:19,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:19,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:19,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:19,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:19" (1/1) ... [2019-09-20 13:30:19,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b51691e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:19, skipping insertion in model container [2019-09-20 13:30:19,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:19" (1/1) ... [2019-09-20 13:30:19,651 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:19,719 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:20,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:20,153 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:20,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:20,275 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:20,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20 WrapperNode [2019-09-20 13:30:20,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:20,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:20,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:20,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:20,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:20,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:20,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:20,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:20,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (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 13:30:20,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:20,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:20,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:20,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:20,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:20,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:20,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:20,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:30:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:30:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:30:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:30:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:30:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:30:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:30:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:30:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:30:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:30:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:30:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:30:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:30:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:30:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:21,562 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:21,563 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:21,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:21 BoogieIcfgContainer [2019-09-20 13:30:21,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:21,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:21,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:21,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:21,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:19" (1/3) ... [2019-09-20 13:30:21,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce24232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:21, skipping insertion in model container [2019-09-20 13:30:21,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (2/3) ... [2019-09-20 13:30:21,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce24232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:21, skipping insertion in model container [2019-09-20 13:30:21,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:21" (3/3) ... [2019-09-20 13:30:21,577 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product56.cil.c [2019-09-20 13:30:21,589 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:21,602 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:21,619 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:21,653 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:21,654 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:21,654 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:21,654 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:21,654 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:21,656 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:21,656 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:21,656 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:21,684 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states. [2019-09-20 13:30:21,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:21,707 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:21,708 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:21,712 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:21,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:21,718 INFO L82 PathProgramCache]: Analyzing trace with hash -453171886, now seen corresponding path program 1 times [2019-09-20 13:30:21,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:21,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:21,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:21,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:21,774 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:22,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:22,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:22,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:22,102 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:22,107 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:22,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:22,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:22,124 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 2 states. [2019-09-20 13:30:22,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:22,155 INFO L93 Difference]: Finished difference Result 169 states and 200 transitions. [2019-09-20 13:30:22,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:22,156 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:22,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:22,170 INFO L225 Difference]: With dead ends: 169 [2019-09-20 13:30:22,170 INFO L226 Difference]: Without dead ends: 158 [2019-09-20 13:30:22,171 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 13:30:22,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-09-20 13:30:22,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-09-20 13:30:22,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-09-20 13:30:22,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 188 transitions. [2019-09-20 13:30:22,226 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 188 transitions. Word has length 51 [2019-09-20 13:30:22,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:22,226 INFO L475 AbstractCegarLoop]: Abstraction has 158 states and 188 transitions. [2019-09-20 13:30:22,227 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:22,227 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 188 transitions. [2019-09-20 13:30:22,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:22,231 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:22,231 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:22,231 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:22,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:22,232 INFO L82 PathProgramCache]: Analyzing trace with hash 23130160, now seen corresponding path program 1 times [2019-09-20 13:30:22,232 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:22,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:22,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:22,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:22,235 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:22,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:22,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:22,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:22,390 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:22,391 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:22,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:22,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:22,392 INFO L87 Difference]: Start difference. First operand 158 states and 188 transitions. Second operand 3 states. [2019-09-20 13:30:22,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:22,410 INFO L93 Difference]: Finished difference Result 149 states and 176 transitions. [2019-09-20 13:30:22,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:22,410 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:22,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:22,413 INFO L225 Difference]: With dead ends: 149 [2019-09-20 13:30:22,413 INFO L226 Difference]: Without dead ends: 149 [2019-09-20 13:30:22,414 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 13:30:22,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-09-20 13:30:22,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2019-09-20 13:30:22,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-09-20 13:30:22,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 176 transitions. [2019-09-20 13:30:22,446 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 176 transitions. Word has length 52 [2019-09-20 13:30:22,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:22,447 INFO L475 AbstractCegarLoop]: Abstraction has 149 states and 176 transitions. [2019-09-20 13:30:22,448 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:22,448 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 176 transitions. [2019-09-20 13:30:22,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:30:22,451 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:22,451 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:22,451 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:22,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:22,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1418292754, now seen corresponding path program 1 times [2019-09-20 13:30:22,455 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:22,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:22,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:22,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:22,460 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:22,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:22,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:22,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:22,679 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:22,680 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:22,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:22,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:22,681 INFO L87 Difference]: Start difference. First operand 149 states and 176 transitions. Second operand 7 states. [2019-09-20 13:30:23,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:23,294 INFO L93 Difference]: Finished difference Result 321 states and 390 transitions. [2019-09-20 13:30:23,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:23,295 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-20 13:30:23,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:23,299 INFO L225 Difference]: With dead ends: 321 [2019-09-20 13:30:23,299 INFO L226 Difference]: Without dead ends: 321 [2019-09-20 13:30:23,299 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 13:30:23,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-09-20 13:30:23,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 309. [2019-09-20 13:30:23,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2019-09-20 13:30:23,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 378 transitions. [2019-09-20 13:30:23,355 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 378 transitions. Word has length 57 [2019-09-20 13:30:23,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:23,357 INFO L475 AbstractCegarLoop]: Abstraction has 309 states and 378 transitions. [2019-09-20 13:30:23,357 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:23,357 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 378 transitions. [2019-09-20 13:30:23,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-20 13:30:23,364 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:23,365 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:23,365 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:23,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:23,365 INFO L82 PathProgramCache]: Analyzing trace with hash -335998659, now seen corresponding path program 1 times [2019-09-20 13:30:23,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:23,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:23,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:23,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:23,372 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:23,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:23,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:23,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:23,469 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:23,470 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:23,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:23,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:23,470 INFO L87 Difference]: Start difference. First operand 309 states and 378 transitions. Second operand 6 states. [2019-09-20 13:30:23,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:23,710 INFO L93 Difference]: Finished difference Result 572 states and 702 transitions. [2019-09-20 13:30:23,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:23,711 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-20 13:30:23,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:23,720 INFO L225 Difference]: With dead ends: 572 [2019-09-20 13:30:23,720 INFO L226 Difference]: Without dead ends: 572 [2019-09-20 13:30:23,721 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:23,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-09-20 13:30:23,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 566. [2019-09-20 13:30:23,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-09-20 13:30:23,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 696 transitions. [2019-09-20 13:30:23,797 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 696 transitions. Word has length 62 [2019-09-20 13:30:23,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:23,806 INFO L475 AbstractCegarLoop]: Abstraction has 566 states and 696 transitions. [2019-09-20 13:30:23,806 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:23,806 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 696 transitions. [2019-09-20 13:30:23,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-20 13:30:23,813 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:23,814 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:23,814 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:23,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:23,814 INFO L82 PathProgramCache]: Analyzing trace with hash 563759321, now seen corresponding path program 1 times [2019-09-20 13:30:23,815 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:23,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:23,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:23,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:23,818 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:23,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:23,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:23,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:23,961 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:23,962 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:23,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:23,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:23,962 INFO L87 Difference]: Start difference. First operand 566 states and 696 transitions. Second operand 7 states. [2019-09-20 13:30:24,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:24,775 INFO L93 Difference]: Finished difference Result 925 states and 1174 transitions. [2019-09-20 13:30:24,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:30:24,775 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-09-20 13:30:24,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:24,782 INFO L225 Difference]: With dead ends: 925 [2019-09-20 13:30:24,782 INFO L226 Difference]: Without dead ends: 925 [2019-09-20 13:30:24,782 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:30:24,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2019-09-20 13:30:24,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 827. [2019-09-20 13:30:24,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-09-20 13:30:24,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1007 transitions. [2019-09-20 13:30:24,830 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1007 transitions. Word has length 66 [2019-09-20 13:30:24,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:24,830 INFO L475 AbstractCegarLoop]: Abstraction has 827 states and 1007 transitions. [2019-09-20 13:30:24,831 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:24,831 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1007 transitions. [2019-09-20 13:30:24,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-20 13:30:24,833 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:24,834 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:24,834 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:24,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:24,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1340944239, now seen corresponding path program 1 times [2019-09-20 13:30:24,834 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:24,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:24,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,837 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:24,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:24,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:24,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:24,943 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:24,944 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:24,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:24,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:24,945 INFO L87 Difference]: Start difference. First operand 827 states and 1007 transitions. Second operand 6 states. [2019-09-20 13:30:24,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:24,991 INFO L93 Difference]: Finished difference Result 847 states and 1027 transitions. [2019-09-20 13:30:24,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:24,992 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2019-09-20 13:30:24,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:24,999 INFO L225 Difference]: With dead ends: 847 [2019-09-20 13:30:24,999 INFO L226 Difference]: Without dead ends: 847 [2019-09-20 13:30:25,000 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 13:30:25,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2019-09-20 13:30:25,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2019-09-20 13:30:25,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 847 states. [2019-09-20 13:30:25,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1027 transitions. [2019-09-20 13:30:25,040 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1027 transitions. Word has length 94 [2019-09-20 13:30:25,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:25,040 INFO L475 AbstractCegarLoop]: Abstraction has 847 states and 1027 transitions. [2019-09-20 13:30:25,041 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:25,041 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1027 transitions. [2019-09-20 13:30:25,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-20 13:30:25,043 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:25,044 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:25,044 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:25,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:25,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1413330797, now seen corresponding path program 1 times [2019-09-20 13:30:25,044 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:25,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:25,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,049 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:25,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:25,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:25,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:30:25,151 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:25,151 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:30:25,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:30:25,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:25,152 INFO L87 Difference]: Start difference. First operand 847 states and 1027 transitions. Second operand 8 states. [2019-09-20 13:30:25,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:25,185 INFO L93 Difference]: Finished difference Result 875 states and 1055 transitions. [2019-09-20 13:30:25,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:25,185 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2019-09-20 13:30:25,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:25,192 INFO L225 Difference]: With dead ends: 875 [2019-09-20 13:30:25,192 INFO L226 Difference]: Without dead ends: 875 [2019-09-20 13:30:25,192 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 13:30:25,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2019-09-20 13:30:25,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 863. [2019-09-20 13:30:25,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 863 states. [2019-09-20 13:30:25,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1043 transitions. [2019-09-20 13:30:25,225 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1043 transitions. Word has length 94 [2019-09-20 13:30:25,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:25,225 INFO L475 AbstractCegarLoop]: Abstraction has 863 states and 1043 transitions. [2019-09-20 13:30:25,225 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:30:25,226 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1043 transitions. [2019-09-20 13:30:25,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-20 13:30:25,228 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:25,228 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:25,228 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:25,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:25,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1083565036, now seen corresponding path program 1 times [2019-09-20 13:30:25,228 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:25,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:25,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,231 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:25,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:25,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:25,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:30:25,303 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:25,303 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:30:25,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:30:25,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:30:25,304 INFO L87 Difference]: Start difference. First operand 863 states and 1043 transitions. Second operand 4 states. [2019-09-20 13:30:25,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:25,581 INFO L93 Difference]: Finished difference Result 1954 states and 2455 transitions. [2019-09-20 13:30:25,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:30:25,582 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2019-09-20 13:30:25,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:25,595 INFO L225 Difference]: With dead ends: 1954 [2019-09-20 13:30:25,595 INFO L226 Difference]: Without dead ends: 1954 [2019-09-20 13:30:25,596 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:30:25,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2019-09-20 13:30:25,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1923. [2019-09-20 13:30:25,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1923 states. [2019-09-20 13:30:25,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2383 transitions. [2019-09-20 13:30:25,697 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2383 transitions. Word has length 94 [2019-09-20 13:30:25,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:25,698 INFO L475 AbstractCegarLoop]: Abstraction has 1923 states and 2383 transitions. [2019-09-20 13:30:25,698 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:30:25,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2383 transitions. [2019-09-20 13:30:25,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-20 13:30:25,703 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:25,703 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:25,703 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:25,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:25,704 INFO L82 PathProgramCache]: Analyzing trace with hash -452793586, now seen corresponding path program 1 times [2019-09-20 13:30:25,704 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:25,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:25,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,707 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:25,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:25,789 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:25,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:25,789 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:25,790 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:25,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:25,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:25,791 INFO L87 Difference]: Start difference. First operand 1923 states and 2383 transitions. Second operand 3 states. [2019-09-20 13:30:25,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:25,850 INFO L93 Difference]: Finished difference Result 3111 states and 3967 transitions. [2019-09-20 13:30:25,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:25,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2019-09-20 13:30:25,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:25,870 INFO L225 Difference]: With dead ends: 3111 [2019-09-20 13:30:25,871 INFO L226 Difference]: Without dead ends: 3111 [2019-09-20 13:30:25,871 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:25,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2019-09-20 13:30:26,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 2951. [2019-09-20 13:30:26,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2951 states. [2019-09-20 13:30:26,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2951 states to 2951 states and 3777 transitions. [2019-09-20 13:30:26,020 INFO L78 Accepts]: Start accepts. Automaton has 2951 states and 3777 transitions. Word has length 98 [2019-09-20 13:30:26,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:26,021 INFO L475 AbstractCegarLoop]: Abstraction has 2951 states and 3777 transitions. [2019-09-20 13:30:26,021 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:26,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2951 states and 3777 transitions. [2019-09-20 13:30:26,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-09-20 13:30:26,040 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:26,040 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, 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] [2019-09-20 13:30:26,040 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:26,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:26,041 INFO L82 PathProgramCache]: Analyzing trace with hash -15634843, now seen corresponding path program 1 times [2019-09-20 13:30:26,041 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:26,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:26,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:26,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:26,045 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:26,222 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 26 proven. 16 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-09-20 13:30:26,223 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:30:26,223 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:30:26,224 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 182 with the following transitions: [2019-09-20 13:30:26,227 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [103], [119], [123], [124], [125], [128], [130], [136], [140], [143], [145], [154], [158], [162], [165], [170], [173], [176], [178], [184], [190], [200], [202], [205], [207], [210], [213], [216], [224], [234], [235], [236], [237], [240], [242], [247], [249], [250], [251], [252], [255], [258], [262], [268], [297], [301], [304], [307], [309], [312], [322], [325], [329], [330], [333], [348], [351], [352], [353], [354], [378], [380], [381], [448], [449], [456], [458], [459], [467], [468], [469], [470], [471], [472], [473], [474], [475], [511], [512], [515], [516], [517], [518], [519], [520], [521], [522], [527], [528], [531], [532], [533], [534], [535], [537], [538], [539], [540], [541], [542], [543], [544], [549], [550], [551], [552], [563], [564], [567], [568], [569], [571], [572], [577], [578], [579] [2019-09-20 13:30:26,289 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:30:26,289 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:30:26,408 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:30:26,410 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 13:30:26,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:26,415 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:30:26,519 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:30:26,520 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:30:26,530 INFO L420 sIntCurrentIteration]: We unified 180 AI predicates to 180 [2019-09-20 13:30:26,530 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:30:26,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:30:26,532 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2019-09-20 13:30:26,532 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:26,533 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:26,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:26,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:26,533 INFO L87 Difference]: Start difference. First operand 2951 states and 3777 transitions. Second operand 2 states. [2019-09-20 13:30:26,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:26,534 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:30:26,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:26,534 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 181 [2019-09-20 13:30:26,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:26,535 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:30:26,535 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:26,537 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 180 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 13:30:26,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:26,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:26,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:26,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:26,538 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2019-09-20 13:30:26,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:26,538 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:26,538 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:26,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:26,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:26,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:26 BoogieIcfgContainer [2019-09-20 13:30:26,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:26,548 INFO L168 Benchmark]: Toolchain (without parser) took 6913.55 ms. Allocated memory was 138.4 MB in the beginning and 340.3 MB in the end (delta: 201.9 MB). Free memory was 83.6 MB in the beginning and 85.4 MB in the end (delta: -1.8 MB). Peak memory consumption was 200.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:26,549 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory is still 102.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:30:26,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 642.16 ms. Allocated memory was 138.4 MB in the beginning and 197.7 MB in the end (delta: 59.2 MB). Free memory was 83.2 MB in the beginning and 162.3 MB in the end (delta: -79.2 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:26,553 INFO L168 Benchmark]: Boogie Preprocessor took 111.21 ms. Allocated memory is still 197.7 MB. Free memory was 162.3 MB in the beginning and 156.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:26,555 INFO L168 Benchmark]: RCFGBuilder took 1177.18 ms. Allocated memory was 197.7 MB in the beginning and 219.7 MB in the end (delta: 22.0 MB). Free memory was 156.8 MB in the beginning and 183.5 MB in the end (delta: -26.6 MB). Peak memory consumption was 90.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:26,561 INFO L168 Benchmark]: TraceAbstraction took 4977.44 ms. Allocated memory was 219.7 MB in the beginning and 340.3 MB in the end (delta: 120.6 MB). Free memory was 183.5 MB in the beginning and 85.4 MB in the end (delta: 98.0 MB). Peak memory consumption was 218.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:26,568 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory is still 102.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 642.16 ms. Allocated memory was 138.4 MB in the beginning and 197.7 MB in the end (delta: 59.2 MB). Free memory was 83.2 MB in the beginning and 162.3 MB in the end (delta: -79.2 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.21 ms. Allocated memory is still 197.7 MB. Free memory was 162.3 MB in the beginning and 156.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1177.18 ms. Allocated memory was 197.7 MB in the beginning and 219.7 MB in the end (delta: 22.0 MB). Free memory was 156.8 MB in the beginning and 183.5 MB in the end (delta: -26.6 MB). Peak memory consumption was 90.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4977.44 ms. Allocated memory was 219.7 MB in the beginning and 340.3 MB in the end (delta: 120.6 MB). Free memory was 183.5 MB in the beginning and 85.4 MB in the end (delta: 98.0 MB). Peak memory consumption was 218.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 410]: 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, 260 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1813 SDtfs, 1013 SDslu, 3990 SDs, 0 SdLazy, 1068 SolverSat, 141 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2951occurred 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, 0.7888888888888889 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 319 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 849 NumberOfCodeBlocks, 849 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 839 ConstructedInterpolants, 0 QuantifiedInterpolants, 125081 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 53/69 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...