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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:20:53,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:20:53,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:20:53,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:20:53,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:20:53,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:20:53,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:20:53,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:20:53,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:20:53,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:20:53,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:20:53,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:20:53,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:20:53,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:20:53,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:20:53,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:20:53,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:20:53,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:20:53,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:20:53,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:20:53,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:20:53,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:20:53,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:20:53,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:20:53,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:20:53,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:20:53,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:20:53,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:20:53,547 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:20:53,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:20:53,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:20:53,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:20:53,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:20:53,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:20:53,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:20:53,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:20:53,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:20:53,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:20:53,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:20:53,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:20:53,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:20:53,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 15:20:53,570 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:20:53,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:20:53,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:20:53,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:20:53,572 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:20:53,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:20:53,572 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:20:53,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:20:53,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:20:53,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:20:53,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:20:53,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:20:53,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:20:53,574 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:20:53,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:20:53,574 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:20:53,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:20:53,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:20:53,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:20:53,575 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:20:53,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:20:53,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:20:53,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:20:53,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:20:53,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:20:53,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:20:53,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:20:53,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:20:53,577 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 15:20:53,903 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:20:53,920 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:20:53,925 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:20:53,927 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:20:53,927 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:20:53,928 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2019-10-07 15:20:54,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe2b4465b/d976843200174a1dace04fd919c0a919/FLAG09b27210b [2019-10-07 15:20:54,557 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:20:54,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2019-10-07 15:20:54,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe2b4465b/d976843200174a1dace04fd919c0a919/FLAG09b27210b [2019-10-07 15:20:54,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe2b4465b/d976843200174a1dace04fd919c0a919 [2019-10-07 15:20:54,839 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:20:54,841 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:20:54,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:20:54,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:20:54,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:20:54,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:20:54" (1/1) ... [2019-10-07 15:20:54,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ac78c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:54, skipping insertion in model container [2019-10-07 15:20:54,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:20:54" (1/1) ... [2019-10-07 15:20:54,859 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:20:54,920 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:20:55,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:20:55,564 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:20:55,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:20:55,700 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:20:55,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:55 WrapperNode [2019-10-07 15:20:55,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:20:55,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:20:55,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:20:55,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:20:55,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:55" (1/1) ... [2019-10-07 15:20:55,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:55" (1/1) ... [2019-10-07 15:20:55,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:55" (1/1) ... [2019-10-07 15:20:55,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:55" (1/1) ... [2019-10-07 15:20:55,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:55" (1/1) ... [2019-10-07 15:20:55,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:55" (1/1) ... [2019-10-07 15:20:55,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:55" (1/1) ... [2019-10-07 15:20:55,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:20:55,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:20:55,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:20:55,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:20:55,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:20:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:20:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:20:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:20:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:20:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:20:55,860 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:20:55,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:20:55,860 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:20:55,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:20:55,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:20:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:20:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:20:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:20:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:20:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:20:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:20:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:20:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:20:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:20:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:20:55,863 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:20:55,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:20:55,863 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:20:55,863 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:20:55,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:20:55,864 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:20:55,864 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:20:55,864 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:20:55,864 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:20:55,864 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:20:55,865 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:20:55,865 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:20:55,865 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:20:55,865 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:20:55,865 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:20:55,866 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-07 15:20:55,866 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:20:55,866 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:20:55,866 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:20:55,866 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:20:55,867 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:20:55,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:20:55,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:20:55,867 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:20:55,867 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:20:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:20:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:20:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:20:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:20:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:20:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:20:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:20:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:20:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:20:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:20:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:20:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:20:55,870 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:20:55,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:20:55,870 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:20:55,870 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:20:55,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:20:55,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:20:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:20:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:20:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:20:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:20:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:20:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:20:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:20:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:20:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:20:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:20:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:20:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:20:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:20:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:20:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:20:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:20:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:20:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:20:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:20:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:20:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:20:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:20:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:20:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-07 15:20:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:20:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:20:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:20:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:20:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:20:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:20:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:20:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:20:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:20:57,553 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:20:57,554 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:20:57,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:20:57 BoogieIcfgContainer [2019-10-07 15:20:57,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:20:57,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:20:57,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:20:57,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:20:57,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:20:54" (1/3) ... [2019-10-07 15:20:57,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1649a739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:20:57, skipping insertion in model container [2019-10-07 15:20:57,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:55" (2/3) ... [2019-10-07 15:20:57,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1649a739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:20:57, skipping insertion in model container [2019-10-07 15:20:57,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:20:57" (3/3) ... [2019-10-07 15:20:57,568 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2019-10-07 15:20:57,579 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:20:57,589 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:20:57,601 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:20:57,639 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:20:57,640 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:20:57,640 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:20:57,640 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:20:57,640 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:20:57,640 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:20:57,640 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:20:57,640 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:20:57,672 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2019-10-07 15:20:57,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-07 15:20:57,686 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:57,688 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2019-10-07 15:20:57,692 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:57,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:57,699 INFO L82 PathProgramCache]: Analyzing trace with hash 2063799279, now seen corresponding path program 1 times [2019-10-07 15:20:57,709 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:57,709 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:57,709 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:57,710 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:57,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:58,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:20:58,054 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:58,055 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:58,055 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:20:58,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:20:58,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:20:58,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:20:58,079 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 2 states. [2019-10-07 15:20:58,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:20:58,119 INFO L93 Difference]: Finished difference Result 232 states and 279 transitions. [2019-10-07 15:20:58,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:20:58,122 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-07 15:20:58,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:20:58,141 INFO L225 Difference]: With dead ends: 232 [2019-10-07 15:20:58,141 INFO L226 Difference]: Without dead ends: 118 [2019-10-07 15:20:58,156 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:20:58,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-10-07 15:20:58,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-10-07 15:20:58,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-10-07 15:20:58,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 135 transitions. [2019-10-07 15:20:58,219 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 135 transitions. Word has length 52 [2019-10-07 15:20:58,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:20:58,220 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 135 transitions. [2019-10-07 15:20:58,220 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:20:58,220 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 135 transitions. [2019-10-07 15:20:58,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-07 15:20:58,224 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:58,225 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2019-10-07 15:20:58,225 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:58,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:58,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1913978571, now seen corresponding path program 1 times [2019-10-07 15:20:58,226 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:58,226 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:58,226 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:58,226 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:58,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:58,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:20:58,375 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:58,375 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:58,376 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:20:58,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:20:58,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:20:58,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:20:58,379 INFO L87 Difference]: Start difference. First operand 118 states and 135 transitions. Second operand 3 states. [2019-10-07 15:20:58,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:20:58,411 INFO L93 Difference]: Finished difference Result 186 states and 213 transitions. [2019-10-07 15:20:58,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:20:58,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-07 15:20:58,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:20:58,418 INFO L225 Difference]: With dead ends: 186 [2019-10-07 15:20:58,419 INFO L226 Difference]: Without dead ends: 110 [2019-10-07 15:20:58,420 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:20:58,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-10-07 15:20:58,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-10-07 15:20:58,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-10-07 15:20:58,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 124 transitions. [2019-10-07 15:20:58,445 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 124 transitions. Word has length 53 [2019-10-07 15:20:58,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:20:58,446 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 124 transitions. [2019-10-07 15:20:58,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:20:58,446 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 124 transitions. [2019-10-07 15:20:58,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-07 15:20:58,451 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:58,451 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:20:58,451 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:58,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:58,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1791567053, now seen corresponding path program 1 times [2019-10-07 15:20:58,452 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:58,452 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:58,452 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:58,452 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:58,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:58,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:20:58,675 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:58,675 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:58,675 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:20:58,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:20:58,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:20:58,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:20:58,681 INFO L87 Difference]: Start difference. First operand 110 states and 124 transitions. Second operand 7 states. [2019-10-07 15:20:59,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:20:59,048 INFO L93 Difference]: Finished difference Result 195 states and 224 transitions. [2019-10-07 15:20:59,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 15:20:59,049 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-07 15:20:59,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:20:59,051 INFO L225 Difference]: With dead ends: 195 [2019-10-07 15:20:59,051 INFO L226 Difference]: Without dead ends: 110 [2019-10-07 15:20:59,053 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:20:59,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-10-07 15:20:59,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-10-07 15:20:59,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-10-07 15:20:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 123 transitions. [2019-10-07 15:20:59,066 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 123 transitions. Word has length 56 [2019-10-07 15:20:59,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:20:59,068 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 123 transitions. [2019-10-07 15:20:59,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:20:59,068 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 123 transitions. [2019-10-07 15:20:59,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-07 15:20:59,071 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:59,071 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:20:59,071 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:59,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:59,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1490175313, now seen corresponding path program 1 times [2019-10-07 15:20:59,072 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:59,072 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:59,072 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:59,073 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:59,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:20:59,219 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:59,219 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:59,219 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 15:20:59,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 15:20:59,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 15:20:59,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 15:20:59,221 INFO L87 Difference]: Start difference. First operand 110 states and 123 transitions. Second operand 5 states. [2019-10-07 15:20:59,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:20:59,703 INFO L93 Difference]: Finished difference Result 289 states and 342 transitions. [2019-10-07 15:20:59,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:20:59,704 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-10-07 15:20:59,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:20:59,706 INFO L225 Difference]: With dead ends: 289 [2019-10-07 15:20:59,707 INFO L226 Difference]: Without dead ends: 204 [2019-10-07 15:20:59,708 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 15:20:59,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2019-10-07 15:20:59,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 187. [2019-10-07 15:20:59,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-10-07 15:20:59,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 209 transitions. [2019-10-07 15:20:59,731 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 209 transitions. Word has length 69 [2019-10-07 15:20:59,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:20:59,732 INFO L462 AbstractCegarLoop]: Abstraction has 187 states and 209 transitions. [2019-10-07 15:20:59,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 15:20:59,732 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 209 transitions. [2019-10-07 15:20:59,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-07 15:20:59,733 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:59,734 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:20:59,734 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:59,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:59,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1638628094, now seen corresponding path program 1 times [2019-10-07 15:20:59,735 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:59,735 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:59,735 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:59,735 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:59,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:00,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:21:00,015 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:00,015 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:00,016 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:21:00,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:21:00,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:21:00,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:21:00,019 INFO L87 Difference]: Start difference. First operand 187 states and 209 transitions. Second operand 12 states. [2019-10-07 15:21:00,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:00,955 INFO L93 Difference]: Finished difference Result 503 states and 578 transitions. [2019-10-07 15:21:00,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:21:00,956 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 78 [2019-10-07 15:21:00,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:00,960 INFO L225 Difference]: With dead ends: 503 [2019-10-07 15:21:00,960 INFO L226 Difference]: Without dead ends: 341 [2019-10-07 15:21:00,962 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-07 15:21:00,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-10-07 15:21:01,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 329. [2019-10-07 15:21:01,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2019-10-07 15:21:01,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 377 transitions. [2019-10-07 15:21:01,016 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 377 transitions. Word has length 78 [2019-10-07 15:21:01,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:01,016 INFO L462 AbstractCegarLoop]: Abstraction has 329 states and 377 transitions. [2019-10-07 15:21:01,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:21:01,016 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 377 transitions. [2019-10-07 15:21:01,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-07 15:21:01,018 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:01,018 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:21:01,019 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:01,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:01,019 INFO L82 PathProgramCache]: Analyzing trace with hash -630120691, now seen corresponding path program 1 times [2019-10-07 15:21:01,019 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:01,020 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:01,020 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:01,020 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:01,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:01,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:21:01,133 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:01,134 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:01,134 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:21:01,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:21:01,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:21:01,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:21:01,136 INFO L87 Difference]: Start difference. First operand 329 states and 377 transitions. Second operand 7 states. [2019-10-07 15:21:01,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:01,696 INFO L93 Difference]: Finished difference Result 661 states and 783 transitions. [2019-10-07 15:21:01,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 15:21:01,697 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-10-07 15:21:01,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:01,700 INFO L225 Difference]: With dead ends: 661 [2019-10-07 15:21:01,700 INFO L226 Difference]: Without dead ends: 357 [2019-10-07 15:21:01,702 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-07 15:21:01,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2019-10-07 15:21:01,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 326. [2019-10-07 15:21:01,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-10-07 15:21:01,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 368 transitions. [2019-10-07 15:21:01,729 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 368 transitions. Word has length 78 [2019-10-07 15:21:01,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:01,730 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 368 transitions. [2019-10-07 15:21:01,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:21:01,730 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 368 transitions. [2019-10-07 15:21:01,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-07 15:21:01,732 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:01,732 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:21:01,732 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:01,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:01,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1700113218, now seen corresponding path program 1 times [2019-10-07 15:21:01,733 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:01,733 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:01,733 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:01,733 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:01,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:01,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:21:01,968 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:01,968 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:01,968 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 15:21:01,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 15:21:01,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 15:21:01,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 15:21:01,970 INFO L87 Difference]: Start difference. First operand 326 states and 368 transitions. Second operand 9 states. [2019-10-07 15:21:02,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:02,897 INFO L93 Difference]: Finished difference Result 999 states and 1158 transitions. [2019-10-07 15:21:02,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:21:02,897 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2019-10-07 15:21:02,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:02,902 INFO L225 Difference]: With dead ends: 999 [2019-10-07 15:21:02,902 INFO L226 Difference]: Without dead ends: 759 [2019-10-07 15:21:02,904 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-07 15:21:02,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2019-10-07 15:21:02,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 654. [2019-10-07 15:21:02,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2019-10-07 15:21:02,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 746 transitions. [2019-10-07 15:21:02,962 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 746 transitions. Word has length 81 [2019-10-07 15:21:02,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:02,963 INFO L462 AbstractCegarLoop]: Abstraction has 654 states and 746 transitions. [2019-10-07 15:21:02,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 15:21:02,963 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 746 transitions. [2019-10-07 15:21:02,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-07 15:21:02,969 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:02,970 INFO L385 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:21:02,970 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:02,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:02,971 INFO L82 PathProgramCache]: Analyzing trace with hash -883352107, now seen corresponding path program 1 times [2019-10-07 15:21:02,971 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:02,971 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:02,971 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:02,971 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:02,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:03,196 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-07 15:21:03,196 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:03,196 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:21:03,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:21:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:03,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-07 15:21:03,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:21:03,585 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:21:03,586 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:21:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-07 15:21:04,017 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:21:04,050 INFO L162 IcfgInterpreter]: Started Sifa with 100 locations of interest [2019-10-07 15:21:04,050 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:21:04,061 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:21:04,070 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:21:04,071 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:21:13,848 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:21:15,552 WARN L191 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-07 15:21:15,671 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:21:15,807 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:21:15,969 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:21:16,180 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:16,422 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:16,660 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:16,853 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:17,184 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-07 15:21:17,292 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:17,430 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:17,559 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:17,668 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:17,784 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:17,794 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-07 15:21:18,056 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-07 15:21:18,057 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-07 15:21:18,172 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:18,280 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:18,414 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:18,559 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:18,664 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:18,798 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:18,938 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:19,070 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:19,202 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:19,433 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-07 15:21:19,545 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:19,711 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:20,040 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:20,147 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:20,268 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:20,402 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:20,512 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:20,744 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:20,952 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:21,074 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:21,283 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:21,431 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:21,748 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:22,075 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:22,276 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:22,399 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:22,725 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:22,870 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:22,981 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,128 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,495 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:23,630 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,762 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,874 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,985 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:24,105 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:24,241 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:24,353 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:24,492 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:24,714 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:21:24,827 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:24,955 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:25,165 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:21:25,281 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:25,405 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:25,520 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:25,632 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:25,766 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:25,879 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:26,005 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:26,132 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:26,276 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:26,390 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:26,537 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:26,736 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:21:26,853 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:26,981 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:27,095 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:27,209 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:27,334 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:27,576 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:27,700 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:27,835 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:28,037 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:28,150 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:28,275 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:28,387 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:28,503 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:28,644 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:28,862 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:21:28,976 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:29,110 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:29,250 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:29,373 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:29,501 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:29,712 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:21:29,827 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:29,952 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:30,155 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:21:30,271 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:30,421 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:30,615 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:21:30,729 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:30,862 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:31,085 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:31,198 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:31,326 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:31,540 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:31,652 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:31,780 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:31,892 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:32,006 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:32,128 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:32,343 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:32,455 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:32,591 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:32,796 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:32,911 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:33,036 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:33,253 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:33,366 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:33,489 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:33,703 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:33,816 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:33,942 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:34,054 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:34,179 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:34,301 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:34,429 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:34,543 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:34,676 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:34,891 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:21:35,004 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:35,132 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:35,334 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:21:35,447 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:35,574 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:35,921 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:21:36,034 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:36,159 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:36,353 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:21:36,466 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:36,597 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:36,805 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:36,916 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:37,043 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:37,310 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:37,427 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:37,551 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:37,668 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:37,780 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:37,902 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:38,379 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:21:38,584 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:38,715 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:38,927 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:21:39,041 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:39,169 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:39,283 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:39,397 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:39,521 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:39,730 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 568 [2019-10-07 15:21:39,845 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:39,976 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:40,184 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 570 [2019-10-07 15:21:40,300 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:40,431 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:40,652 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 570 [2019-10-07 15:21:40,768 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:40,895 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:41,104 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 570 [2019-10-07 15:21:41,219 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:41,349 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:21:41,564 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:41,676 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:41,801 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:42,003 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:42,115 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:42,254 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:42,370 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:42,482 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:42,603 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:42,826 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:21:42,941 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:43,067 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:43,187 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:43,304 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:43,431 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:43,546 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:43,660 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:43,784 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:43,989 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 568 [2019-10-07 15:21:44,103 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:44,234 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:44,445 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:44,557 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:44,681 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:44,918 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:45,030 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:45,156 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:45,269 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:45,381 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:45,502 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:45,718 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:21:45,833 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:45,959 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:46,172 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:21:46,289 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:46,415 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:46,418 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 546 for LOIs [2019-10-07 15:21:46,736 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:47,076 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:47,258 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 548 [2019-10-07 15:21:47,493 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:47,812 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:47,817 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 550 for LOIs [2019-10-07 15:21:47,922 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:21:48,029 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:21:48,151 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:48,262 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:21:48,368 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:21:48,495 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:48,597 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:21:48,700 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:21:48,827 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:21:48,933 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:21:49,038 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:21:49,166 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:21:49,332 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:21:49,619 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:21:50,033 WARN L191 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:21:50,420 WARN L191 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 597 [2019-10-07 15:21:50,801 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 597 [2019-10-07 15:21:51,068 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:21:51,070 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:178) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:169) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:21:51,076 INFO L168 Benchmark]: Toolchain (without parser) took 56235.09 ms. Allocated memory was 142.1 MB in the beginning and 920.1 MB in the end (delta: 778.0 MB). Free memory was 99.9 MB in the beginning and 254.7 MB in the end (delta: -154.7 MB). Peak memory consumption was 623.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:21:51,076 INFO L168 Benchmark]: CDTParser took 1.27 ms. Allocated memory is still 142.1 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 15:21:51,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 859.25 ms. Allocated memory was 142.1 MB in the beginning and 203.4 MB in the end (delta: 61.3 MB). Free memory was 99.7 MB in the beginning and 170.3 MB in the end (delta: -70.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:21:51,077 INFO L168 Benchmark]: Boogie Preprocessor took 101.47 ms. Allocated memory is still 203.4 MB. Free memory was 170.3 MB in the beginning and 165.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:21:51,078 INFO L168 Benchmark]: RCFGBuilder took 1753.25 ms. Allocated memory was 203.4 MB in the beginning and 230.7 MB in the end (delta: 27.3 MB). Free memory was 165.9 MB in the beginning and 147.3 MB in the end (delta: 18.6 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:21:51,078 INFO L168 Benchmark]: TraceAbstraction took 53516.36 ms. Allocated memory was 230.7 MB in the beginning and 920.1 MB in the end (delta: 689.4 MB). Free memory was 145.8 MB in the beginning and 254.7 MB in the end (delta: -108.8 MB). Peak memory consumption was 580.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:21:51,080 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.27 ms. Allocated memory is still 142.1 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 859.25 ms. Allocated memory was 142.1 MB in the beginning and 203.4 MB in the end (delta: 61.3 MB). Free memory was 99.7 MB in the beginning and 170.3 MB in the end (delta: -70.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.47 ms. Allocated memory is still 203.4 MB. Free memory was 170.3 MB in the beginning and 165.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1753.25 ms. Allocated memory was 203.4 MB in the beginning and 230.7 MB in the end (delta: 27.3 MB). Free memory was 165.9 MB in the beginning and 147.3 MB in the end (delta: 18.6 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 53516.36 ms. Allocated memory was 230.7 MB in the beginning and 920.1 MB in the end (delta: 689.4 MB). Free memory was 145.8 MB in the beginning and 254.7 MB in the end (delta: -108.8 MB). Peak memory consumption was 580.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...