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_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:57:17,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:57:17,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:57:17,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:57:17,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:57:17,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:57:17,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:57:17,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:57:17,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:57:17,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:57:17,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:57:17,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:57:17,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:57:17,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:57:17,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:57:17,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:57:17,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:57:17,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:57:17,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:57:17,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:57:17,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:57:17,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:57:17,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:57:17,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:57:17,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:57:17,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:57:17,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:57:17,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:57:17,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:57:17,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:57:17,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:57:17,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:57:17,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:57:17,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:57:17,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:57:17,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:57:17,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:57:17,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:57:17,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:57:17,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:57:17,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:57:17,654 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 [2019-10-03 02:57:17,669 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:57:17,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:57:17,670 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:57:17,670 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:57:17,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:57:17,671 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:57:17,671 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:57:17,671 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:57:17,671 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:57:17,672 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:57:17,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:57:17,673 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:57:17,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:57:17,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:57:17,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:57:17,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:57:17,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:57:17,674 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:57:17,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:57:17,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:57:17,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:57:17,675 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:57:17,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:57:17,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:57:17,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:57:17,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:57:17,676 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:57:17,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:57:17,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:57:17,676 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:57:17,709 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:57:17,727 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:57:17,731 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:57:17,732 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:57:17,733 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:57:17,734 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product10.cil.c [2019-10-03 02:57:17,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc5386d3/9adb24ebe4204b3eb5e71697a4076b2a/FLAGea7aa062d [2019-10-03 02:57:18,345 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:57:18,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product10.cil.c [2019-10-03 02:57:18,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc5386d3/9adb24ebe4204b3eb5e71697a4076b2a/FLAGea7aa062d [2019-10-03 02:57:18,697 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc5386d3/9adb24ebe4204b3eb5e71697a4076b2a [2019-10-03 02:57:18,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:57:18,708 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:57:18,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:18,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:57:18,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:57:18,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:18" (1/1) ... [2019-10-03 02:57:18,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c86a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:18, skipping insertion in model container [2019-10-03 02:57:18,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:18" (1/1) ... [2019-10-03 02:57:18,723 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:57:18,778 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:57:19,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:19,202 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:57:19,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:19,393 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:57:19,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:19 WrapperNode [2019-10-03 02:57:19,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:19,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:57:19,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:57:19,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:57:19,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:19" (1/1) ... [2019-10-03 02:57:19,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:19" (1/1) ... [2019-10-03 02:57:19,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:19" (1/1) ... [2019-10-03 02:57:19,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:19" (1/1) ... [2019-10-03 02:57:19,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:19" (1/1) ... [2019-10-03 02:57:19,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:19" (1/1) ... [2019-10-03 02:57:19,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:19" (1/1) ... [2019-10-03 02:57:19,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:57:19,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:57:19,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:57:19,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:57:19,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:19" (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 [2019-10-03 02:57:19,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:57:19,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:57:19,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:19,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:57:19,584 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:57:19,584 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:57:19,584 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:57:19,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:57:19,584 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:57:19,585 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:57:19,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:19,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:19,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:19,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:57:19,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:57:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:57:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:57:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:57:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:57:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:57:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:57:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:57:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:57:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-10-03 02:57:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:57:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:57:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:57:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:57:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:57:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:57:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-03 02:57:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-03 02:57:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:57:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:57:19,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:57:19,590 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:57:19,590 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:57:19,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:57:19,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:57:19,590 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:57:19,590 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:57:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:57:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:57:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:57:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:57:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:57:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:57:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:57:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:57:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:57:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:57:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:57:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:57:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:57:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:57:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:57:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:57:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:57:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:57:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:57:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:57:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:57:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:57:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:57:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:57:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:57:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:57:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:57:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:57:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:57:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:57:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:57:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-03 02:57:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:57:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-10-03 02:57:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:57:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-03 02:57:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:57:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:57:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:57:19,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:57:19,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:57:19,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:57:19,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:57:20,625 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:57:20,626 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:57:20,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:20 BoogieIcfgContainer [2019-10-03 02:57:20,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:57:20,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:57:20,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:57:20,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:57:20,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:57:18" (1/3) ... [2019-10-03 02:57:20,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325cc856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:20, skipping insertion in model container [2019-10-03 02:57:20,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:19" (2/3) ... [2019-10-03 02:57:20,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325cc856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:20, skipping insertion in model container [2019-10-03 02:57:20,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:20" (3/3) ... [2019-10-03 02:57:20,640 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product10.cil.c [2019-10-03 02:57:20,651 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:57:20,664 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:57:20,680 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:57:20,727 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:57:20,727 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:57:20,728 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:57:20,728 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:57:20,728 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:57:20,728 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:57:20,728 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:57:20,728 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:57:20,758 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2019-10-03 02:57:20,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:57:20,772 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:20,773 INFO L411 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] [2019-10-03 02:57:20,777 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:20,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:20,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1568761122, now seen corresponding path program 1 times [2019-10-03 02:57:20,787 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:20,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:20,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:20,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:20,849 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:21,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:21,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:21,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:57:21,144 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:21,150 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:57:21,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:57:21,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:21,170 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 2 states. [2019-10-03 02:57:21,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:21,213 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2019-10-03 02:57:21,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:57:21,215 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-10-03 02:57:21,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:21,233 INFO L225 Difference]: With dead ends: 101 [2019-10-03 02:57:21,238 INFO L226 Difference]: Without dead ends: 90 [2019-10-03 02:57:21,242 INFO L640 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 [2019-10-03 02:57:21,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-10-03 02:57:21,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2019-10-03 02:57:21,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-10-03 02:57:21,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 104 transitions. [2019-10-03 02:57:21,339 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 104 transitions. Word has length 51 [2019-10-03 02:57:21,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:21,340 INFO L475 AbstractCegarLoop]: Abstraction has 90 states and 104 transitions. [2019-10-03 02:57:21,340 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:57:21,341 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 104 transitions. [2019-10-03 02:57:21,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:57:21,344 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:21,344 INFO L411 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] [2019-10-03 02:57:21,344 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:21,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:21,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1581025708, now seen corresponding path program 1 times [2019-10-03 02:57:21,345 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:21,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:21,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:21,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:21,349 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:21,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:21,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:21,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:57:21,497 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:21,499 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:57:21,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:57:21,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:21,501 INFO L87 Difference]: Start difference. First operand 90 states and 104 transitions. Second operand 3 states. [2019-10-03 02:57:21,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:21,524 INFO L93 Difference]: Finished difference Result 81 states and 92 transitions. [2019-10-03 02:57:21,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:57:21,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-03 02:57:21,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:21,529 INFO L225 Difference]: With dead ends: 81 [2019-10-03 02:57:21,530 INFO L226 Difference]: Without dead ends: 81 [2019-10-03 02:57:21,531 INFO L640 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 [2019-10-03 02:57:21,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-10-03 02:57:21,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2019-10-03 02:57:21,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-10-03 02:57:21,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 92 transitions. [2019-10-03 02:57:21,552 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 92 transitions. Word has length 52 [2019-10-03 02:57:21,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:21,553 INFO L475 AbstractCegarLoop]: Abstraction has 81 states and 92 transitions. [2019-10-03 02:57:21,553 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:57:21,553 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 92 transitions. [2019-10-03 02:57:21,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-03 02:57:21,557 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:21,557 INFO L411 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] [2019-10-03 02:57:21,558 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:21,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:21,559 INFO L82 PathProgramCache]: Analyzing trace with hash -409908338, now seen corresponding path program 1 times [2019-10-03 02:57:21,559 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:21,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:21,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:21,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:21,564 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:21,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:21,765 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:21,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:57:21,766 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:21,766 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:57:21,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:57:21,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:21,767 INFO L87 Difference]: Start difference. First operand 81 states and 92 transitions. Second operand 7 states. [2019-10-03 02:57:22,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:22,020 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2019-10-03 02:57:22,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:57:22,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-10-03 02:57:22,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:22,023 INFO L225 Difference]: With dead ends: 81 [2019-10-03 02:57:22,023 INFO L226 Difference]: Without dead ends: 81 [2019-10-03 02:57:22,023 INFO L640 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 [2019-10-03 02:57:22,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-10-03 02:57:22,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2019-10-03 02:57:22,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-10-03 02:57:22,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2019-10-03 02:57:22,030 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 57 [2019-10-03 02:57:22,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:22,031 INFO L475 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2019-10-03 02:57:22,031 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:57:22,031 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2019-10-03 02:57:22,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-03 02:57:22,033 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:22,033 INFO L411 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] [2019-10-03 02:57:22,033 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:22,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:22,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1254648935, now seen corresponding path program 1 times [2019-10-03 02:57:22,034 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:22,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:22,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:22,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:22,037 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:22,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:22,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:22,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:22,128 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:22,129 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:22,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:22,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:22,130 INFO L87 Difference]: Start difference. First operand 81 states and 91 transitions. Second operand 6 states. [2019-10-03 02:57:22,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:22,343 INFO L93 Difference]: Finished difference Result 126 states and 144 transitions. [2019-10-03 02:57:22,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:22,351 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2019-10-03 02:57:22,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:22,361 INFO L225 Difference]: With dead ends: 126 [2019-10-03 02:57:22,362 INFO L226 Difference]: Without dead ends: 126 [2019-10-03 02:57:22,362 INFO L640 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 [2019-10-03 02:57:22,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-10-03 02:57:22,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 124. [2019-10-03 02:57:22,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-10-03 02:57:22,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 142 transitions. [2019-10-03 02:57:22,384 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 142 transitions. Word has length 60 [2019-10-03 02:57:22,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:22,385 INFO L475 AbstractCegarLoop]: Abstraction has 124 states and 142 transitions. [2019-10-03 02:57:22,385 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:22,388 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 142 transitions. [2019-10-03 02:57:22,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-03 02:57:22,394 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:22,395 INFO L411 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] [2019-10-03 02:57:22,395 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:22,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:22,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1040881725, now seen corresponding path program 1 times [2019-10-03 02:57:22,395 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:22,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:22,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:22,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:22,401 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:22,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:22,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:22,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:22,547 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:22,549 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:22,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:22,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:22,551 INFO L87 Difference]: Start difference. First operand 124 states and 142 transitions. Second operand 6 states. [2019-10-03 02:57:22,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:22,694 INFO L93 Difference]: Finished difference Result 114 states and 127 transitions. [2019-10-03 02:57:22,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:57:22,695 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2019-10-03 02:57:22,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:22,696 INFO L225 Difference]: With dead ends: 114 [2019-10-03 02:57:22,696 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:57:22,696 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:57:22,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:57:22,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:57:22,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:57:22,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:57:22,697 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2019-10-03 02:57:22,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:22,697 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:57:22,698 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:22,698 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:57:22,698 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:57:22,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:57:22 BoogieIcfgContainer [2019-10-03 02:57:22,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:57:22,706 INFO L168 Benchmark]: Toolchain (without parser) took 3997.51 ms. Allocated memory was 130.0 MB in the beginning and 273.7 MB in the end (delta: 143.7 MB). Free memory was 84.6 MB in the beginning and 195.7 MB in the end (delta: -111.1 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:22,708 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 130.0 MB. Free memory was 104.2 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:57:22,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.78 ms. Allocated memory was 130.0 MB in the beginning and 198.2 MB in the end (delta: 68.2 MB). Free memory was 84.4 MB in the beginning and 162.0 MB in the end (delta: -77.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:22,711 INFO L168 Benchmark]: Boogie Preprocessor took 115.52 ms. Allocated memory is still 198.2 MB. Free memory was 162.0 MB in the beginning and 157.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:22,713 INFO L168 Benchmark]: RCFGBuilder took 1110.36 ms. Allocated memory is still 198.2 MB. Free memory was 157.4 MB in the beginning and 74.1 MB in the end (delta: 83.4 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:22,714 INFO L168 Benchmark]: TraceAbstraction took 2072.24 ms. Allocated memory was 198.2 MB in the beginning and 273.7 MB in the end (delta: 75.5 MB). Free memory was 74.1 MB in the beginning and 195.7 MB in the end (delta: -121.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 02:57:22,723 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 130.0 MB. Free memory was 104.2 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.78 ms. Allocated memory was 130.0 MB in the beginning and 198.2 MB in the end (delta: 68.2 MB). Free memory was 84.4 MB in the beginning and 162.0 MB in the end (delta: -77.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.52 ms. Allocated memory is still 198.2 MB. Free memory was 162.0 MB in the beginning and 157.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1110.36 ms. Allocated memory is still 198.2 MB. Free memory was 157.4 MB in the beginning and 74.1 MB in the end (delta: 83.4 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2072.24 ms. Allocated memory was 198.2 MB in the beginning and 273.7 MB in the end (delta: 75.5 MB). Free memory was 74.1 MB in the beginning and 195.7 MB in the end (delta: -121.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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 37 procedures, 210 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 468 SDtfs, 184 SDslu, 776 SDs, 0 SdLazy, 181 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=0, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 279 ConstructedInterpolants, 0 QuantifiedInterpolants, 28779 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...