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_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:38,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:38,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:38,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:38,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:38,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:38,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:38,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:38,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:38,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:38,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:38,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:38,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:38,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:38,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:38,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:38,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:38,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:38,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:38,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:38,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:38,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:38,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:38,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:38,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:38,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:38,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:38,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:38,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:38,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:38,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:38,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:38,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:38,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:38,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:38,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:38,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:38,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:38,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:38,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:38,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:38,680 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 13:30:38,695 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:38,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:38,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:38,696 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:38,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:38,697 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:38,698 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:38,698 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:38,698 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:38,698 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:38,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:38,699 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:38,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:38,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:38,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:38,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:38,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:38,701 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:38,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:38,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:38,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:38,701 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:38,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:38,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:38,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:38,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:38,702 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:38,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:38,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:38,703 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:38,734 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:38,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:38,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:38,752 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:38,753 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:38,753 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c [2019-09-20 13:30:38,830 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c21165b0a/ec367c01b274476a9dc761aae83d9eb1/FLAGeb693b7ce [2019-09-20 13:30:39,370 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:39,373 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c [2019-09-20 13:30:39,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c21165b0a/ec367c01b274476a9dc761aae83d9eb1/FLAGeb693b7ce [2019-09-20 13:30:39,629 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c21165b0a/ec367c01b274476a9dc761aae83d9eb1 [2019-09-20 13:30:39,641 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:39,642 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:39,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:39,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:39,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:39,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:39" (1/1) ... [2019-09-20 13:30:39,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a2888d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:39, skipping insertion in model container [2019-09-20 13:30:39,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:39" (1/1) ... [2019-09-20 13:30:39,664 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:39,727 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:40,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:40,201 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:40,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:40,372 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:40,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:40 WrapperNode [2019-09-20 13:30:40,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:40,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:40,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:40,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:40,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:40" (1/1) ... [2019-09-20 13:30:40,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:40" (1/1) ... [2019-09-20 13:30:40,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:40" (1/1) ... [2019-09-20 13:30:40,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:40" (1/1) ... [2019-09-20 13:30:40,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:40" (1/1) ... [2019-09-20 13:30:40,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:40" (1/1) ... [2019-09-20 13:30:40,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:40" (1/1) ... [2019-09-20 13:30:40,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:40,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:40,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:40,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:40,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:40" (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 13:30:40,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:40,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:40,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:40,539 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:40,542 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:40,542 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:40,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:40,542 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:40,542 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:40,542 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:40,543 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:40,543 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:40,543 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:40,543 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:40,543 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:30:40,543 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:30:40,544 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:40,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:40,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:40,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:40,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:40,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:40,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:40,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:40,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:30:40,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:40,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:40,545 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:30:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:30:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:30:40,550 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:40,550 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:40,550 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:40,550 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:40,550 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:40,550 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:40,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:40,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:40,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:40,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:40,551 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:40,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:40,552 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:40,552 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:40,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:40,552 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:40,552 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:40,552 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:40,553 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:40,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:40,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:40,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:41,582 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:41,582 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:41,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:41 BoogieIcfgContainer [2019-09-20 13:30:41,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:41,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:41,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:41,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:41,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:39" (1/3) ... [2019-09-20 13:30:41,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d55e535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:41, skipping insertion in model container [2019-09-20 13:30:41,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:40" (2/3) ... [2019-09-20 13:30:41,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d55e535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:41, skipping insertion in model container [2019-09-20 13:30:41,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:41" (3/3) ... [2019-09-20 13:30:41,592 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product04.cil.c [2019-09-20 13:30:41,602 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:41,610 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:41,626 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:41,655 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:41,655 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:41,656 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:41,656 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:41,656 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:41,656 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:41,657 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:41,657 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:41,696 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2019-09-20 13:30:41,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:30:41,709 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:41,710 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 13:30:41,712 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:41,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:41,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1078669538, now seen corresponding path program 1 times [2019-09-20 13:30:41,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:41,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:41,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:41,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:41,773 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:42,100 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 13:30:42,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:42,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:42,112 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:42,118 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:42,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:42,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:42,137 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2019-09-20 13:30:42,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:42,174 INFO L93 Difference]: Finished difference Result 105 states and 120 transitions. [2019-09-20 13:30:42,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:42,175 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:30:42,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:42,195 INFO L225 Difference]: With dead ends: 105 [2019-09-20 13:30:42,195 INFO L226 Difference]: Without dead ends: 94 [2019-09-20 13:30:42,203 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 13:30:42,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-09-20 13:30:42,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-09-20 13:30:42,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-09-20 13:30:42,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 108 transitions. [2019-09-20 13:30:42,291 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 108 transitions. Word has length 46 [2019-09-20 13:30:42,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:42,292 INFO L475 AbstractCegarLoop]: Abstraction has 94 states and 108 transitions. [2019-09-20 13:30:42,292 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:42,293 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 108 transitions. [2019-09-20 13:30:42,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:30:42,298 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:42,298 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 13:30:42,298 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:42,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:42,300 INFO L82 PathProgramCache]: Analyzing trace with hash -352011727, now seen corresponding path program 1 times [2019-09-20 13:30:42,300 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:42,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:42,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:42,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:42,303 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:42,474 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 13:30:42,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:42,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:42,475 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:42,478 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:42,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:42,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:42,479 INFO L87 Difference]: Start difference. First operand 94 states and 108 transitions. Second operand 3 states. [2019-09-20 13:30:42,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:42,501 INFO L93 Difference]: Finished difference Result 85 states and 96 transitions. [2019-09-20 13:30:42,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:42,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:30:42,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:42,504 INFO L225 Difference]: With dead ends: 85 [2019-09-20 13:30:42,504 INFO L226 Difference]: Without dead ends: 85 [2019-09-20 13:30:42,505 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 13:30:42,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-09-20 13:30:42,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-09-20 13:30:42,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-09-20 13:30:42,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2019-09-20 13:30:42,514 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 96 transitions. Word has length 47 [2019-09-20 13:30:42,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:42,515 INFO L475 AbstractCegarLoop]: Abstraction has 85 states and 96 transitions. [2019-09-20 13:30:42,515 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:42,515 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 96 transitions. [2019-09-20 13:30:42,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:42,517 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:42,517 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:42,518 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:42,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:42,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1517693929, now seen corresponding path program 1 times [2019-09-20 13:30:42,518 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:42,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:42,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:42,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:42,521 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:42,657 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 13:30:42,658 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:42,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:42,658 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:42,659 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:42,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:42,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:42,660 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. Second operand 7 states. [2019-09-20 13:30:43,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:43,012 INFO L93 Difference]: Finished difference Result 196 states and 232 transitions. [2019-09-20 13:30:43,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:43,013 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-20 13:30:43,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:43,016 INFO L225 Difference]: With dead ends: 196 [2019-09-20 13:30:43,016 INFO L226 Difference]: Without dead ends: 196 [2019-09-20 13:30:43,017 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:43,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-09-20 13:30:43,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 172. [2019-09-20 13:30:43,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-09-20 13:30:43,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2019-09-20 13:30:43,050 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 52 [2019-09-20 13:30:43,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:43,051 INFO L475 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2019-09-20 13:30:43,051 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:43,051 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2019-09-20 13:30:43,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-20 13:30:43,053 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:43,053 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] [2019-09-20 13:30:43,053 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:43,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:43,054 INFO L82 PathProgramCache]: Analyzing trace with hash 818013324, now seen corresponding path program 1 times [2019-09-20 13:30:43,054 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:43,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:43,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:43,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:43,057 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:43,238 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 13:30:43,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:43,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:30:43,239 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:43,239 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:30:43,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:30:43,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:43,240 INFO L87 Difference]: Start difference. First operand 172 states and 204 transitions. Second operand 10 states. [2019-09-20 13:30:43,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:43,763 INFO L93 Difference]: Finished difference Result 420 states and 523 transitions. [2019-09-20 13:30:43,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-20 13:30:43,764 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2019-09-20 13:30:43,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:43,778 INFO L225 Difference]: With dead ends: 420 [2019-09-20 13:30:43,778 INFO L226 Difference]: Without dead ends: 420 [2019-09-20 13:30:43,779 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 13:30:43,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2019-09-20 13:30:43,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 408. [2019-09-20 13:30:43,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2019-09-20 13:30:43,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 502 transitions. [2019-09-20 13:30:43,845 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 502 transitions. Word has length 55 [2019-09-20 13:30:43,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:43,845 INFO L475 AbstractCegarLoop]: Abstraction has 408 states and 502 transitions. [2019-09-20 13:30:43,845 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:30:43,846 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 502 transitions. [2019-09-20 13:30:43,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:30:43,853 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:43,853 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] [2019-09-20 13:30:43,854 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:43,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:43,854 INFO L82 PathProgramCache]: Analyzing trace with hash 514323110, now seen corresponding path program 1 times [2019-09-20 13:30:43,854 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:43,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:43,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:43,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:43,861 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:43,956 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 13:30:43,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:43,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:43,957 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:43,958 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:43,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:43,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:43,960 INFO L87 Difference]: Start difference. First operand 408 states and 502 transitions. Second operand 3 states. [2019-09-20 13:30:43,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:43,977 INFO L93 Difference]: Finished difference Result 366 states and 428 transitions. [2019-09-20 13:30:43,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:43,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-09-20 13:30:43,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:43,981 INFO L225 Difference]: With dead ends: 366 [2019-09-20 13:30:43,981 INFO L226 Difference]: Without dead ends: 366 [2019-09-20 13:30:43,981 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:43,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-09-20 13:30:44,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2019-09-20 13:30:44,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2019-09-20 13:30:44,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 428 transitions. [2019-09-20 13:30:44,008 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 428 transitions. Word has length 59 [2019-09-20 13:30:44,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:44,008 INFO L475 AbstractCegarLoop]: Abstraction has 366 states and 428 transitions. [2019-09-20 13:30:44,009 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:44,009 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 428 transitions. [2019-09-20 13:30:44,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:30:44,012 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:44,012 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:30:44,013 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:44,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:44,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1399137902, now seen corresponding path program 1 times [2019-09-20 13:30:44,013 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:44,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:44,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:44,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:44,016 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:44,148 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-20 13:30:44,149 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:44,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:44,149 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:44,150 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:44,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:44,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:44,151 INFO L87 Difference]: Start difference. First operand 366 states and 428 transitions. Second operand 7 states. [2019-09-20 13:30:44,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:44,472 INFO L93 Difference]: Finished difference Result 369 states and 429 transitions. [2019-09-20 13:30:44,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:44,473 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2019-09-20 13:30:44,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:44,474 INFO L225 Difference]: With dead ends: 369 [2019-09-20 13:30:44,474 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:44,474 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 [2019-09-20 13:30:44,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:44,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:44,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:44,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:44,476 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2019-09-20 13:30:44,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:44,477 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:44,477 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:44,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:44,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:44,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:44 BoogieIcfgContainer [2019-09-20 13:30:44,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:44,489 INFO L168 Benchmark]: Toolchain (without parser) took 4845.52 ms. Allocated memory was 139.5 MB in the beginning and 265.3 MB in the end (delta: 125.8 MB). Free memory was 86.4 MB in the beginning and 92.8 MB in the end (delta: -6.4 MB). Peak memory consumption was 119.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:44,491 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:44,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.46 ms. Allocated memory was 139.5 MB in the beginning and 199.8 MB in the end (delta: 60.3 MB). Free memory was 86.2 MB in the beginning and 168.1 MB in the end (delta: -81.8 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:44,494 INFO L168 Benchmark]: Boogie Preprocessor took 104.14 ms. Allocated memory is still 199.8 MB. Free memory was 168.1 MB in the beginning and 164.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:44,496 INFO L168 Benchmark]: RCFGBuilder took 1106.08 ms. Allocated memory is still 199.8 MB. Free memory was 164.2 MB in the beginning and 83.0 MB in the end (delta: 81.1 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:44,497 INFO L168 Benchmark]: TraceAbstraction took 2901.28 ms. Allocated memory was 199.8 MB in the beginning and 265.3 MB in the end (delta: 65.5 MB). Free memory was 83.0 MB in the beginning and 92.8 MB in the end (delta: -9.8 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:44,505 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 729.46 ms. Allocated memory was 139.5 MB in the beginning and 199.8 MB in the end (delta: 60.3 MB). Free memory was 86.2 MB in the beginning and 168.1 MB in the end (delta: -81.8 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.14 ms. Allocated memory is still 199.8 MB. Free memory was 168.1 MB in the beginning and 164.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1106.08 ms. Allocated memory is still 199.8 MB. Free memory was 164.2 MB in the beginning and 83.0 MB in the end (delta: 81.1 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2901.28 ms. Allocated memory was 199.8 MB in the beginning and 265.3 MB in the end (delta: 65.5 MB). Free memory was 83.0 MB in the beginning and 92.8 MB in the end (delta: -9.8 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 838]: 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 36 procedures, 204 locations, 1 error locations. SAFE Result, 2.8s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 585 SDtfs, 401 SDslu, 1242 SDs, 0 SdLazy, 543 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=408occurred 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: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 348 NumberOfCodeBlocks, 348 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 342 ConstructedInterpolants, 0 QuantifiedInterpolants, 41424 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 24/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...