java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:34,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:34,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:34,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:34,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:34,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:34,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:34,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:34,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:34,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:34,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:34,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:34,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:34,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:34,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:34,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:34,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:34,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:34,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:34,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:34,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:34,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:34,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:34,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:34,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:34,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:34,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:34,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:34,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:34,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:34,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:34,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:34,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:34,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:34,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:34,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:34,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:34,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:34,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:34,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:34,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:34,675 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:30:34,695 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:34,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:34,697 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:34,697 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:34,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:34,698 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:34,698 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:34,698 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:34,698 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:34,699 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:34,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:34,701 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:34,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:34,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:34,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:34,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:34,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:34,702 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:34,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:34,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:34,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:34,703 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:34,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:34,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:34,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:34,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:34,704 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:34,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:34,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:34,705 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:34,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:34,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:34,788 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:34,789 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:34,790 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:34,791 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product01.cil.c [2019-09-20 13:30:34,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a182fb87b/8169468473424110874131abf67b2077/FLAG65e8d82ef [2019-09-20 13:30:35,419 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:35,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product01.cil.c [2019-09-20 13:30:35,438 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a182fb87b/8169468473424110874131abf67b2077/FLAG65e8d82ef [2019-09-20 13:30:35,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a182fb87b/8169468473424110874131abf67b2077 [2019-09-20 13:30:35,715 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:35,717 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:35,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:35,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:35,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:35,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:35" (1/1) ... [2019-09-20 13:30:35,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e021dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:35, skipping insertion in model container [2019-09-20 13:30:35,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:35" (1/1) ... [2019-09-20 13:30:35,734 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:35,799 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:36,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:36,218 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:36,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:36,369 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:36,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:36 WrapperNode [2019-09-20 13:30:36,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:36,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:36,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:36,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:36,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:36" (1/1) ... [2019-09-20 13:30:36,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:36" (1/1) ... [2019-09-20 13:30:36,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:36" (1/1) ... [2019-09-20 13:30:36,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:36" (1/1) ... [2019-09-20 13:30:36,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:36" (1/1) ... [2019-09-20 13:30:36,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:36" (1/1) ... [2019-09-20 13:30:36,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:36" (1/1) ... [2019-09-20 13:30:36,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:36,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:36,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:36,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:36,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:36,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:36,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:36,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:36,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:36,551 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:36,551 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:36,551 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:36,551 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:36,552 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:36,553 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:36,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:36,553 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:36,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:36,554 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:36,555 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:36,555 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:36,556 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:36,556 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:36,556 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:36,556 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:36,556 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:36,556 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:36,557 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:36,557 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:36,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:36,558 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:36,558 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:36,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:30:36,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:36,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:36,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:36,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:36,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:36,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:36,561 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:36,561 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:36,561 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:36,561 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:36,561 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:36,561 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:36,561 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:30:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:36,566 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:36,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:37,662 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:37,662 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:37,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:37 BoogieIcfgContainer [2019-09-20 13:30:37,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:37,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:37,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:37,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:37,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:35" (1/3) ... [2019-09-20 13:30:37,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19325c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:37, skipping insertion in model container [2019-09-20 13:30:37,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:36" (2/3) ... [2019-09-20 13:30:37,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19325c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:37, skipping insertion in model container [2019-09-20 13:30:37,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:37" (3/3) ... [2019-09-20 13:30:37,675 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product01.cil.c [2019-09-20 13:30:37,686 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:37,698 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:37,716 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:37,754 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:37,754 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:37,754 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:37,754 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:37,755 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:37,755 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:37,755 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:37,755 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:37,795 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2019-09-20 13:30:37,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:30:37,809 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:37,810 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] [2019-09-20 13:30:37,813 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:37,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:37,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1757322053, now seen corresponding path program 1 times [2019-09-20 13:30:37,822 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:37,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:37,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:37,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:37,885 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:38,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:38,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:38,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:38,252 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:38,262 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:38,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:38,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:38,279 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2019-09-20 13:30:38,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:38,305 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2019-09-20 13:30:38,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:38,307 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:30:38,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:38,318 INFO L225 Difference]: With dead ends: 92 [2019-09-20 13:30:38,318 INFO L226 Difference]: Without dead ends: 81 [2019-09-20 13:30:38,320 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:38,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-09-20 13:30:38,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2019-09-20 13:30:38,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-09-20 13:30:38,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions. [2019-09-20 13:30:38,370 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 46 [2019-09-20 13:30:38,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:38,370 INFO L475 AbstractCegarLoop]: Abstraction has 81 states and 94 transitions. [2019-09-20 13:30:38,371 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:38,371 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions. [2019-09-20 13:30:38,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:30:38,374 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:38,374 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] [2019-09-20 13:30:38,375 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:38,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:38,375 INFO L82 PathProgramCache]: Analyzing trace with hash -745095734, now seen corresponding path program 1 times [2019-09-20 13:30:38,375 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:38,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:38,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:38,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:38,378 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:38,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:38,554 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:38,554 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:38,554 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:38,556 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:38,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:38,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:38,557 INFO L87 Difference]: Start difference. First operand 81 states and 94 transitions. Second operand 3 states. [2019-09-20 13:30:38,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:38,568 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2019-09-20 13:30:38,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:38,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:30:38,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:38,571 INFO L225 Difference]: With dead ends: 72 [2019-09-20 13:30:38,571 INFO L226 Difference]: Without dead ends: 72 [2019-09-20 13:30:38,572 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:38,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-09-20 13:30:38,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-09-20 13:30:38,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-09-20 13:30:38,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2019-09-20 13:30:38,582 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 47 [2019-09-20 13:30:38,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:38,582 INFO L475 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2019-09-20 13:30:38,582 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:38,583 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2019-09-20 13:30:38,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:38,585 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:38,585 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:38,585 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:38,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:38,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1066187872, now seen corresponding path program 1 times [2019-09-20 13:30:38,586 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:38,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:38,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:38,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:38,589 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:38,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:38,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:38,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:38,744 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:38,745 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:38,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:38,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:38,746 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand 7 states. [2019-09-20 13:30:38,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:38,976 INFO L93 Difference]: Finished difference Result 72 states and 81 transitions. [2019-09-20 13:30:38,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:38,976 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-20 13:30:38,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:38,978 INFO L225 Difference]: With dead ends: 72 [2019-09-20 13:30:38,978 INFO L226 Difference]: Without dead ends: 72 [2019-09-20 13:30:38,979 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:38,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-09-20 13:30:38,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-09-20 13:30:38,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-09-20 13:30:38,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2019-09-20 13:30:38,988 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 51 [2019-09-20 13:30:38,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:38,988 INFO L475 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2019-09-20 13:30:38,988 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:38,989 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2019-09-20 13:30:38,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-09-20 13:30:38,990 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:38,991 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] [2019-09-20 13:30:38,991 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:38,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:38,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1773574869, now seen corresponding path program 1 times [2019-09-20 13:30:38,992 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:38,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:38,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:38,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:38,996 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:39,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:39,166 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:39,167 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:30:39,167 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:39,167 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:30:39,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:30:39,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:39,169 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand 10 states. [2019-09-20 13:30:39,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:39,729 INFO L93 Difference]: Finished difference Result 148 states and 178 transitions. [2019-09-20 13:30:39,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-20 13:30:39,732 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2019-09-20 13:30:39,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:39,744 INFO L225 Difference]: With dead ends: 148 [2019-09-20 13:30:39,745 INFO L226 Difference]: Without dead ends: 148 [2019-09-20 13:30:39,746 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-20 13:30:39,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-09-20 13:30:39,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2019-09-20 13:30:39,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-09-20 13:30:39,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 171 transitions. [2019-09-20 13:30:39,790 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 171 transitions. Word has length 54 [2019-09-20 13:30:39,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:39,793 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 171 transitions. [2019-09-20 13:30:39,793 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:30:39,793 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 171 transitions. [2019-09-20 13:30:39,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-20 13:30:39,797 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:39,798 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] [2019-09-20 13:30:39,798 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:39,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:39,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1393150715, now seen corresponding path program 1 times [2019-09-20 13:30:39,803 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:39,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:39,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:39,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:39,806 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:39,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:39,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:39,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:39,882 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:39,882 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:39,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:39,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:39,883 INFO L87 Difference]: Start difference. First operand 144 states and 171 transitions. Second operand 3 states. [2019-09-20 13:30:39,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:39,890 INFO L93 Difference]: Finished difference Result 134 states and 152 transitions. [2019-09-20 13:30:39,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:39,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2019-09-20 13:30:39,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:39,893 INFO L225 Difference]: With dead ends: 134 [2019-09-20 13:30:39,893 INFO L226 Difference]: Without dead ends: 134 [2019-09-20 13:30:39,893 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:39,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-09-20 13:30:39,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-09-20 13:30:39,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-09-20 13:30:39,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 152 transitions. [2019-09-20 13:30:39,905 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 152 transitions. Word has length 58 [2019-09-20 13:30:39,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:39,906 INFO L475 AbstractCegarLoop]: Abstraction has 134 states and 152 transitions. [2019-09-20 13:30:39,906 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:39,906 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 152 transitions. [2019-09-20 13:30:39,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:30:39,908 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:39,908 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:39,909 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:39,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:39,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1464178856, now seen corresponding path program 1 times [2019-09-20 13:30:39,909 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:39,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:39,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:39,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:39,912 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:40,020 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-20 13:30:40,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:40,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:40,021 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:40,022 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:40,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:40,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:40,023 INFO L87 Difference]: Start difference. First operand 134 states and 152 transitions. Second operand 6 states. [2019-09-20 13:30:40,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:40,159 INFO L93 Difference]: Finished difference Result 133 states and 151 transitions. [2019-09-20 13:30:40,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:40,159 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2019-09-20 13:30:40,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:40,160 INFO L225 Difference]: With dead ends: 133 [2019-09-20 13:30:40,160 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:40,160 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:40,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:40,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:40,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:40,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:40,162 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2019-09-20 13:30:40,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:40,162 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:40,162 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:40,162 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:40,163 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:40,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:40 BoogieIcfgContainer [2019-09-20 13:30:40,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:40,171 INFO L168 Benchmark]: Toolchain (without parser) took 4453.34 ms. Allocated memory was 140.0 MB in the beginning and 262.1 MB in the end (delta: 122.2 MB). Free memory was 85.5 MB in the beginning and 142.6 MB in the end (delta: -57.1 MB). Peak memory consumption was 65.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:40,172 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory is still 105.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:30:40,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.37 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 85.5 MB in the beginning and 167.3 MB in the end (delta: -81.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:40,174 INFO L168 Benchmark]: Boogie Preprocessor took 113.79 ms. Allocated memory is still 200.3 MB. Free memory was 167.3 MB in the beginning and 163.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:40,175 INFO L168 Benchmark]: RCFGBuilder took 1176.73 ms. Allocated memory is still 200.3 MB. Free memory was 163.8 MB in the beginning and 83.7 MB in the end (delta: 80.1 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:40,176 INFO L168 Benchmark]: TraceAbstraction took 2502.93 ms. Allocated memory was 200.3 MB in the beginning and 262.1 MB in the end (delta: 61.9 MB). Free memory was 83.7 MB in the beginning and 142.6 MB in the end (delta: -58.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:40,180 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory is still 105.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 655.37 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 85.5 MB in the beginning and 167.3 MB in the end (delta: -81.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.79 ms. Allocated memory is still 200.3 MB. Free memory was 167.3 MB in the beginning and 163.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1176.73 ms. Allocated memory is still 200.3 MB. Free memory was 163.8 MB in the beginning and 83.7 MB in the end (delta: 80.1 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2502.93 ms. Allocated memory was 200.3 MB in the beginning and 262.1 MB in the end (delta: 61.9 MB). Free memory was 83.7 MB in the beginning and 142.6 MB in the end (delta: -58.9 MB). Peak memory consumption was 2.9 MB. 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 34 procedures, 194 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 495 SDtfs, 259 SDslu, 938 SDs, 0 SdLazy, 315 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred 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, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 338 ConstructedInterpolants, 0 QuantifiedInterpolants, 39145 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 26/26 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...