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_spec4_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:09:05,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:09:05,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:09:05,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:09:05,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:09:05,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:09:05,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:09:05,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:09:05,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:09:05,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:09:05,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:09:05,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:09:05,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:09:05,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:09:05,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:09:05,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:09:05,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:09:05,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:09:05,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:09:05,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:09:05,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:09:05,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:09:05,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:09:05,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:09:05,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:09:05,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:09:05,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:09:05,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:09:05,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:09:05,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:09:05,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:09:05,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:09:05,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:09:05,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:09:05,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:09:05,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:09:05,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:09:05,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:09:05,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:09:05,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:09:05,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:09:05,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:09:05,602 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:09:05,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:09:05,603 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:09:05,603 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:09:05,604 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:09:05,604 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:09:05,605 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:09:05,605 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:09:05,605 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:09:05,605 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:09:05,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:09:05,606 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:09:05,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:09:05,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:09:05,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:09:05,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:09:05,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:09:05,607 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:09:05,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:09:05,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:09:05,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:09:05,608 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:09:05,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:09:05,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:09:05,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:09:05,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:09:05,609 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:09:05,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:09:05,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:09:05,610 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:09:05,638 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:09:05,652 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:09:05,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:09:05,657 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:09:05,658 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:09:05,658 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product27.cil.c [2019-09-16 17:09:05,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d565e41/8550bac960e945649ec549424f263165/FLAG8011ff816 [2019-09-16 17:09:06,288 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:09:06,288 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product27.cil.c [2019-09-16 17:09:06,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d565e41/8550bac960e945649ec549424f263165/FLAG8011ff816 [2019-09-16 17:09:06,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d565e41/8550bac960e945649ec549424f263165 [2019-09-16 17:09:06,643 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:09:06,645 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:09:06,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:06,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:09:06,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:09:06,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:06" (1/1) ... [2019-09-16 17:09:06,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@234bd41e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:06, skipping insertion in model container [2019-09-16 17:09:06,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:06" (1/1) ... [2019-09-16 17:09:06,663 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:09:06,739 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:09:07,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:07,188 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:09:07,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:07,322 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:09:07,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07 WrapperNode [2019-09-16 17:09:07,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:07,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:09:07,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:09:07,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:09:07,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (1/1) ... [2019-09-16 17:09:07,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (1/1) ... [2019-09-16 17:09:07,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (1/1) ... [2019-09-16 17:09:07,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (1/1) ... [2019-09-16 17:09:07,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (1/1) ... [2019-09-16 17:09:07,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (1/1) ... [2019-09-16 17:09:07,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (1/1) ... [2019-09-16 17:09:07,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:09:07,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:09:07,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:09:07,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:09:07,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:09:07,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:09:07,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:09:07,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:07,498 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:09:07,499 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:09:07,499 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:09:07,499 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:09:07,499 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:09:07,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:09:07,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:09:07,499 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:09:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:09:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:09:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:09:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:09:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:09:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:09:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:09:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:09:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:09:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:09:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:09:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:09:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:09:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:09:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:09:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:09:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:09:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:09:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:09:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:09:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:09:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:09:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:09:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:09:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:09:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:09:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:09:07,505 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:09:07,505 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:09:07,505 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:09:07,505 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:09:07,505 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:09:07,505 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:09:07,505 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:09:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:09:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:09:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:09:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:09:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:09:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:09:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:09:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:09:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:09:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:09:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:09:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:09:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:09:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:09:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:09:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:09:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:09:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:09:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:09:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:09:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:09:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:09:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:09:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:09:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:09:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:09:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:09:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:09:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:09:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:09:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:09:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:09:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:09:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:09:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:09:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:09:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:09:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:09:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:09:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:09:08,737 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:09:08,738 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:09:08,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:08 BoogieIcfgContainer [2019-09-16 17:09:08,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:09:08,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:09:08,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:09:08,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:09:08,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:09:06" (1/3) ... [2019-09-16 17:09:08,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f24444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:08, skipping insertion in model container [2019-09-16 17:09:08,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:07" (2/3) ... [2019-09-16 17:09:08,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f24444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:08, skipping insertion in model container [2019-09-16 17:09:08,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:08" (3/3) ... [2019-09-16 17:09:08,749 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product27.cil.c [2019-09-16 17:09:08,759 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:09:08,770 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:09:08,783 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:09:08,805 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:09:08,805 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:09:08,806 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:09:08,806 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:09:08,806 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:09:08,806 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:09:08,806 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:09:08,806 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:09:08,826 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2019-09-16 17:09:08,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:09:08,840 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:08,841 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] [2019-09-16 17:09:08,844 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:08,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:08,849 INFO L82 PathProgramCache]: Analyzing trace with hash 251220135, now seen corresponding path program 1 times [2019-09-16 17:09:08,852 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:08,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:08,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:08,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:08,913 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:09,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:09,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:09,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:09:09,213 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:09,218 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:09,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:09,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:09,235 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 2 states. [2019-09-16 17:09:09,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:09,263 INFO L93 Difference]: Finished difference Result 121 states and 141 transitions. [2019-09-16 17:09:09,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:09,265 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:09:09,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:09,277 INFO L225 Difference]: With dead ends: 121 [2019-09-16 17:09:09,277 INFO L226 Difference]: Without dead ends: 110 [2019-09-16 17:09:09,279 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:09,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-09-16 17:09:09,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-09-16 17:09:09,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-09-16 17:09:09,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 129 transitions. [2019-09-16 17:09:09,328 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 129 transitions. Word has length 46 [2019-09-16 17:09:09,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:09,328 INFO L475 AbstractCegarLoop]: Abstraction has 110 states and 129 transitions. [2019-09-16 17:09:09,328 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:09,328 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 129 transitions. [2019-09-16 17:09:09,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:09:09,332 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:09,332 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] [2019-09-16 17:09:09,333 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:09,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:09,333 INFO L82 PathProgramCache]: Analyzing trace with hash -128124380, now seen corresponding path program 1 times [2019-09-16 17:09:09,333 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:09,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:09,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:09,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:09,336 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:09,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:09,445 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:09,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:09:09,446 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:09,447 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:09:09,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:09:09,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:09,448 INFO L87 Difference]: Start difference. First operand 110 states and 129 transitions. Second operand 3 states. [2019-09-16 17:09:09,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:09,463 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2019-09-16 17:09:09,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:09:09,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:09:09,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:09,466 INFO L225 Difference]: With dead ends: 101 [2019-09-16 17:09:09,466 INFO L226 Difference]: Without dead ends: 101 [2019-09-16 17:09:09,467 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:09,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-09-16 17:09:09,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-09-16 17:09:09,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-09-16 17:09:09,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2019-09-16 17:09:09,479 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 47 [2019-09-16 17:09:09,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:09,480 INFO L475 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2019-09-16 17:09:09,480 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:09:09,480 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2019-09-16 17:09:09,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:09:09,482 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:09,482 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:09,483 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:09,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:09,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1051903128, now seen corresponding path program 1 times [2019-09-16 17:09:09,483 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:09,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:09,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:09,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:09,486 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:09,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:09,700 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:09,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:09:09,701 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:09,701 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:09:09,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:09:09,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:09:09,702 INFO L87 Difference]: Start difference. First operand 101 states and 117 transitions. Second operand 7 states. [2019-09-16 17:09:10,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:10,182 INFO L93 Difference]: Finished difference Result 228 states and 272 transitions. [2019-09-16 17:09:10,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:09:10,184 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-16 17:09:10,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:10,190 INFO L225 Difference]: With dead ends: 228 [2019-09-16 17:09:10,191 INFO L226 Difference]: Without dead ends: 228 [2019-09-16 17:09:10,194 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 [2019-09-16 17:09:10,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-09-16 17:09:10,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 220. [2019-09-16 17:09:10,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-09-16 17:09:10,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 266 transitions. [2019-09-16 17:09:10,250 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 266 transitions. Word has length 51 [2019-09-16 17:09:10,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:10,251 INFO L475 AbstractCegarLoop]: Abstraction has 220 states and 266 transitions. [2019-09-16 17:09:10,251 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:09:10,251 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 266 transitions. [2019-09-16 17:09:10,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-16 17:09:10,257 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:10,257 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] [2019-09-16 17:09:10,258 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:10,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:10,258 INFO L82 PathProgramCache]: Analyzing trace with hash -462875738, now seen corresponding path program 1 times [2019-09-16 17:09:10,259 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:10,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:10,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:10,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:10,264 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:10,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:10,478 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:10,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:09:10,478 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:10,479 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:09:10,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:09:10,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:09:10,480 INFO L87 Difference]: Start difference. First operand 220 states and 266 transitions. Second operand 6 states. [2019-09-16 17:09:10,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:10,698 INFO L93 Difference]: Finished difference Result 401 states and 501 transitions. [2019-09-16 17:09:10,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:09:10,699 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-09-16 17:09:10,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:10,704 INFO L225 Difference]: With dead ends: 401 [2019-09-16 17:09:10,704 INFO L226 Difference]: Without dead ends: 401 [2019-09-16 17:09:10,705 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:09:10,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2019-09-16 17:09:10,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 389. [2019-09-16 17:09:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-09-16 17:09:10,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 480 transitions. [2019-09-16 17:09:10,758 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 480 transitions. Word has length 57 [2019-09-16 17:09:10,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:10,759 INFO L475 AbstractCegarLoop]: Abstraction has 389 states and 480 transitions. [2019-09-16 17:09:10,759 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:09:10,760 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 480 transitions. [2019-09-16 17:09:10,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-16 17:09:10,769 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:10,769 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] [2019-09-16 17:09:10,770 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:10,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:10,770 INFO L82 PathProgramCache]: Analyzing trace with hash 773907884, now seen corresponding path program 1 times [2019-09-16 17:09:10,771 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:10,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:10,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:10,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:10,774 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:10,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:10,896 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:10,896 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:09:10,897 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:10,897 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:09:10,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:09:10,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:09:10,898 INFO L87 Difference]: Start difference. First operand 389 states and 480 transitions. Second operand 7 states. [2019-09-16 17:09:11,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:11,242 INFO L93 Difference]: Finished difference Result 284 states and 328 transitions. [2019-09-16 17:09:11,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:09:11,244 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-09-16 17:09:11,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:11,245 INFO L225 Difference]: With dead ends: 284 [2019-09-16 17:09:11,245 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:09:11,246 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-16 17:09:11,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:09:11,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:09:11,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:09:11,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:09:11,247 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2019-09-16 17:09:11,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:11,247 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:09:11,247 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:09:11,247 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:09:11,248 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:09:11,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:09:11 BoogieIcfgContainer [2019-09-16 17:09:11,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:09:11,258 INFO L168 Benchmark]: Toolchain (without parser) took 4611.67 ms. Allocated memory was 133.2 MB in the beginning and 261.6 MB in the end (delta: 128.5 MB). Free memory was 86.8 MB in the beginning and 139.6 MB in the end (delta: -52.9 MB). Peak memory consumption was 75.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:11,259 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory is still 105.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:09:11,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.90 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 86.8 MB in the beginning and 164.6 MB in the end (delta: -77.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:11,261 INFO L168 Benchmark]: Boogie Preprocessor took 87.75 ms. Allocated memory is still 199.8 MB. Free memory was 164.6 MB in the beginning and 160.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:11,262 INFO L168 Benchmark]: RCFGBuilder took 1328.40 ms. Allocated memory was 199.8 MB in the beginning and 224.4 MB in the end (delta: 24.6 MB). Free memory was 160.1 MB in the beginning and 195.1 MB in the end (delta: -34.9 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:11,263 INFO L168 Benchmark]: TraceAbstraction took 2513.81 ms. Allocated memory was 224.4 MB in the beginning and 261.6 MB in the end (delta: 37.2 MB). Free memory was 195.1 MB in the beginning and 139.6 MB in the end (delta: 55.5 MB). Peak memory consumption was 92.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:11,267 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory is still 105.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 676.90 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 86.8 MB in the beginning and 164.6 MB in the end (delta: -77.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.75 ms. Allocated memory is still 199.8 MB. Free memory was 164.6 MB in the beginning and 160.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1328.40 ms. Allocated memory was 199.8 MB in the beginning and 224.4 MB in the end (delta: 24.6 MB). Free memory was 160.1 MB in the beginning and 195.1 MB in the end (delta: -34.9 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2513.81 ms. Allocated memory was 224.4 MB in the beginning and 261.6 MB in the end (delta: 37.2 MB). Free memory was 195.1 MB in the beginning and 139.6 MB in the end (delta: 55.5 MB). Peak memory consumption was 92.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 148]: 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 39 procedures, 227 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 606 SDtfs, 350 SDslu, 1174 SDs, 0 SdLazy, 408 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=389occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 257 ConstructedInterpolants, 0 QuantifiedInterpolants, 27263 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...