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_spec1_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:07:45,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:45,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:45,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:45,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:45,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:45,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:45,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:45,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:45,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:45,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:45,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:45,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:45,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:45,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:45,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:45,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:45,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:45,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:45,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:45,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:45,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:45,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:45,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:45,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:45,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:45,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:45,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:45,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:45,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:45,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:45,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:45,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:45,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:45,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:45,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:45,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:45,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:45,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:45,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:45,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:45,715 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 17:07:45,735 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:45,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:45,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:45,736 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:45,737 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:45,737 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:45,737 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:45,737 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:45,737 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:45,738 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:45,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:45,739 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:45,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:45,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:45,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:45,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:45,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:45,740 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:45,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:45,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:45,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:45,741 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:45,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:45,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:45,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:45,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:45,742 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:45,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:45,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:45,742 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:45,775 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:45,790 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:45,794 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:45,795 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:45,795 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:45,796 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product16.cil.c [2019-09-16 17:07:45,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b960cf4f9/6aa590b079a1478eb8dff2e7162a5fd1/FLAG9934d3dc9 [2019-09-16 17:07:46,429 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:46,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product16.cil.c [2019-09-16 17:07:46,450 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b960cf4f9/6aa590b079a1478eb8dff2e7162a5fd1/FLAG9934d3dc9 [2019-09-16 17:07:46,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b960cf4f9/6aa590b079a1478eb8dff2e7162a5fd1 [2019-09-16 17:07:46,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:46,724 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:46,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:46,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:46,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:46,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:46" (1/1) ... [2019-09-16 17:07:46,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d587287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:46, skipping insertion in model container [2019-09-16 17:07:46,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:46" (1/1) ... [2019-09-16 17:07:46,745 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:46,798 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:47,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:47,251 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:47,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:47,407 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:47,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:47 WrapperNode [2019-09-16 17:07:47,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:47,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:47,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:47,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:47,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:47" (1/1) ... [2019-09-16 17:07:47,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:47" (1/1) ... [2019-09-16 17:07:47,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:47" (1/1) ... [2019-09-16 17:07:47,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:47" (1/1) ... [2019-09-16 17:07:47,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:47" (1/1) ... [2019-09-16 17:07:47,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:47" (1/1) ... [2019-09-16 17:07:47,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:47" (1/1) ... [2019-09-16 17:07:47,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:47,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:47,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:47,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:47,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:47" (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 17:07:47,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:47,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:47,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:47,640 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:07:47,640 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:07:47,641 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:07:47,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:07:47,641 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:07:47,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:07:47,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:47,641 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:07:47,642 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:07:47,642 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:07:47,642 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:07:47,642 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:07:47,642 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:07:47,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:07:47,643 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:07:47,643 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:47,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:07:47,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:47,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:47,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:47,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:07:47,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:07:47,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:07:47,644 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:07:47,644 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:07:47,644 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:07:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-16 17:07:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:07:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:07:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:07:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:07:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:07:47,646 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:07:47,646 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:07:47,646 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:07:47,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:47,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:07:47,646 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:07:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:07:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:07:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:07:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:07:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:07:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:07:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:07:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:07:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:07:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:07:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:07:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:07:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:07:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:07:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:07:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:07:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:07:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:07:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:07:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:07:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:07:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:07:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:07:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:07:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:07:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:07:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:07:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:07:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:07:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:07:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:07:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-16 17:07:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:07:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:48,639 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:48,639 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:07:48,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:48 BoogieIcfgContainer [2019-09-16 17:07:48,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:48,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:48,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:48,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:48,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:46" (1/3) ... [2019-09-16 17:07:48,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad56634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:48, skipping insertion in model container [2019-09-16 17:07:48,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:47" (2/3) ... [2019-09-16 17:07:48,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad56634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:48, skipping insertion in model container [2019-09-16 17:07:48,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:48" (3/3) ... [2019-09-16 17:07:48,650 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product16.cil.c [2019-09-16 17:07:48,660 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:48,669 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:07:48,686 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:07:48,717 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:48,718 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:48,718 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:48,718 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:48,718 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:48,719 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:48,719 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:48,719 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:48,766 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2019-09-16 17:07:48,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:07:48,784 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:48,785 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 17:07:48,789 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:48,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:48,797 INFO L82 PathProgramCache]: Analyzing trace with hash 841763169, now seen corresponding path program 1 times [2019-09-16 17:07:48,799 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:48,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:48,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:48,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:48,854 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:49,188 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 17:07:49,190 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:49,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:49,191 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:49,197 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:49,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:49,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:49,212 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 2 states. [2019-09-16 17:07:49,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:49,244 INFO L93 Difference]: Finished difference Result 120 states and 140 transitions. [2019-09-16 17:07:49,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:49,248 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:07:49,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:49,268 INFO L225 Difference]: With dead ends: 120 [2019-09-16 17:07:49,268 INFO L226 Difference]: Without dead ends: 109 [2019-09-16 17:07:49,272 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 17:07:49,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-09-16 17:07:49,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-09-16 17:07:49,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-09-16 17:07:49,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 128 transitions. [2019-09-16 17:07:49,328 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 128 transitions. Word has length 46 [2019-09-16 17:07:49,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:49,329 INFO L475 AbstractCegarLoop]: Abstraction has 109 states and 128 transitions. [2019-09-16 17:07:49,329 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:49,329 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 128 transitions. [2019-09-16 17:07:49,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:07:49,335 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:49,336 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 17:07:49,336 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:49,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:49,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1716807413, now seen corresponding path program 1 times [2019-09-16 17:07:49,337 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:49,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:49,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:49,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:49,341 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:49,529 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 17:07:49,529 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:49,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:07:49,529 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:49,531 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:07:49,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:07:49,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:07:49,532 INFO L87 Difference]: Start difference. First operand 109 states and 128 transitions. Second operand 3 states. [2019-09-16 17:07:49,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:49,556 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2019-09-16 17:07:49,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:07:49,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:07:49,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:49,559 INFO L225 Difference]: With dead ends: 100 [2019-09-16 17:07:49,559 INFO L226 Difference]: Without dead ends: 100 [2019-09-16 17:07:49,561 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 17:07:49,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-09-16 17:07:49,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2019-09-16 17:07:49,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-09-16 17:07:49,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 116 transitions. [2019-09-16 17:07:49,572 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 116 transitions. Word has length 47 [2019-09-16 17:07:49,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:49,573 INFO L475 AbstractCegarLoop]: Abstraction has 100 states and 116 transitions. [2019-09-16 17:07:49,573 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:07:49,573 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 116 transitions. [2019-09-16 17:07:49,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:07:49,575 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:49,575 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:49,576 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:49,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:49,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1646650364, now seen corresponding path program 1 times [2019-09-16 17:07:49,576 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:49,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:49,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:49,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:49,579 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:49,783 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 17:07:49,784 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:49,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:07:49,784 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:49,785 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:07:49,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:07:49,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:07:49,787 INFO L87 Difference]: Start difference. First operand 100 states and 116 transitions. Second operand 7 states. [2019-09-16 17:07:50,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:50,277 INFO L93 Difference]: Finished difference Result 226 states and 272 transitions. [2019-09-16 17:07:50,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:07:50,278 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-16 17:07:50,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:50,281 INFO L225 Difference]: With dead ends: 226 [2019-09-16 17:07:50,281 INFO L226 Difference]: Without dead ends: 226 [2019-09-16 17:07:50,282 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 17:07:50,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2019-09-16 17:07:50,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 214. [2019-09-16 17:07:50,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2019-09-16 17:07:50,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 260 transitions. [2019-09-16 17:07:50,333 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 260 transitions. Word has length 52 [2019-09-16 17:07:50,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:50,334 INFO L475 AbstractCegarLoop]: Abstraction has 214 states and 260 transitions. [2019-09-16 17:07:50,335 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:07:50,335 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 260 transitions. [2019-09-16 17:07:50,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-16 17:07:50,340 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:50,340 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 17:07:50,341 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:50,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:50,342 INFO L82 PathProgramCache]: Analyzing trace with hash 385460171, now seen corresponding path program 1 times [2019-09-16 17:07:50,342 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:50,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:50,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:50,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:50,345 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:50,483 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 17:07:50,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:50,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:07:50,484 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:50,486 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:07:50,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:07:50,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:07:50,487 INFO L87 Difference]: Start difference. First operand 214 states and 260 transitions. Second operand 6 states. [2019-09-16 17:07:50,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:50,751 INFO L93 Difference]: Finished difference Result 389 states and 476 transitions. [2019-09-16 17:07:50,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:07:50,752 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-09-16 17:07:50,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:50,760 INFO L225 Difference]: With dead ends: 389 [2019-09-16 17:07:50,761 INFO L226 Difference]: Without dead ends: 389 [2019-09-16 17:07:50,762 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:07:50,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-09-16 17:07:50,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 383. [2019-09-16 17:07:50,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2019-09-16 17:07:50,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 470 transitions. [2019-09-16 17:07:50,825 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 470 transitions. Word has length 57 [2019-09-16 17:07:50,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:50,826 INFO L475 AbstractCegarLoop]: Abstraction has 383 states and 470 transitions. [2019-09-16 17:07:50,826 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:07:50,826 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 470 transitions. [2019-09-16 17:07:50,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-16 17:07:50,834 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:50,835 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 17:07:50,835 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:50,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:50,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1496116017, now seen corresponding path program 1 times [2019-09-16 17:07:50,836 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:50,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:50,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:50,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:50,843 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:50,989 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 17:07:50,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:50,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:07:50,989 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:50,990 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:07:50,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:07:50,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:07:50,991 INFO L87 Difference]: Start difference. First operand 383 states and 470 transitions. Second operand 7 states. [2019-09-16 17:07:51,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:51,337 INFO L93 Difference]: Finished difference Result 298 states and 345 transitions. [2019-09-16 17:07:51,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:07:51,338 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-09-16 17:07:51,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:51,338 INFO L225 Difference]: With dead ends: 298 [2019-09-16 17:07:51,338 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:07:51,339 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 17:07:51,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:07:51,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:07:51,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:07:51,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:07:51,340 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2019-09-16 17:07:51,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:51,340 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:07:51,340 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:07:51,340 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:07:51,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:07:51,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:07:51 BoogieIcfgContainer [2019-09-16 17:07:51,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:07:51,348 INFO L168 Benchmark]: Toolchain (without parser) took 4623.60 ms. Allocated memory was 137.4 MB in the beginning and 271.6 MB in the end (delta: 134.2 MB). Free memory was 84.3 MB in the beginning and 153.2 MB in the end (delta: -68.9 MB). Peak memory consumption was 65.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:51,350 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 103.5 MB in the beginning and 103.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:07:51,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.64 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 84.1 MB in the beginning and 164.2 MB in the end (delta: -80.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:51,351 INFO L168 Benchmark]: Boogie Preprocessor took 167.18 ms. Allocated memory is still 198.2 MB. Free memory was 164.2 MB in the beginning and 160.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:51,352 INFO L168 Benchmark]: RCFGBuilder took 1065.10 ms. Allocated memory is still 198.2 MB. Free memory was 160.3 MB in the beginning and 76.9 MB in the end (delta: 83.4 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:51,353 INFO L168 Benchmark]: TraceAbstraction took 2703.50 ms. Allocated memory was 198.2 MB in the beginning and 271.6 MB in the end (delta: 73.4 MB). Free memory was 76.9 MB in the beginning and 153.2 MB in the end (delta: -76.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:07:51,357 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 103.5 MB in the beginning and 103.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 680.64 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 84.1 MB in the beginning and 164.2 MB in the end (delta: -80.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 167.18 ms. Allocated memory is still 198.2 MB. Free memory was 164.2 MB in the beginning and 160.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1065.10 ms. Allocated memory is still 198.2 MB. Free memory was 160.3 MB in the beginning and 76.9 MB in the end (delta: 83.4 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2703.50 ms. Allocated memory was 198.2 MB in the beginning and 271.6 MB in the end (delta: 73.4 MB). Free memory was 76.9 MB in the beginning and 153.2 MB in the end (delta: -76.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 295]: 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 38 procedures, 221 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 606 SDtfs, 346 SDslu, 1154 SDs, 0 SdLazy, 415 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=383occurred 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, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 263 NumberOfCodeBlocks, 263 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 25848 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...