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_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:21:54,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:21:54,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:21:54,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:21:54,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:21:54,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:21:54,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:21:54,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:21:54,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:21:54,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:21:54,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:21:54,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:21:54,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:21:54,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:21:54,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:21:54,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:21:54,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:21:54,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:21:54,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:21:54,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:21:54,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:21:54,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:21:54,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:21:54,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:21:54,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:21:54,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:21:54,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:21:54,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:21:54,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:21:54,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:21:54,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:21:54,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:21:54,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:21:54,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:21:54,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:21:54,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:21:54,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:21:54,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:21:54,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:21:54,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:21:54,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:21:54,953 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 15:21:54,967 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:21:54,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:21:54,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:21:54,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:21:54,969 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:21:54,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:21:54,969 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:21:54,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:21:54,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:21:54,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:21:54,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:21:54,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:21:54,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:21:54,970 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:21:54,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:21:54,971 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:21:54,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:21:54,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:21:54,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:21:54,972 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:21:54,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:21:54,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:21:54,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:21:54,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:21:54,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:21:54,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:21:54,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:21:54,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:21:54,973 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 15:21:55,236 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:21:55,249 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:21:55,252 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:21:55,254 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:21:55,254 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:21:55,255 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2019-10-07 15:21:55,314 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc5057bad/146e1dc4023745579389741aae6ae190/FLAGf47a333c5 [2019-10-07 15:21:55,817 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:21:55,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2019-10-07 15:21:55,842 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc5057bad/146e1dc4023745579389741aae6ae190/FLAGf47a333c5 [2019-10-07 15:21:56,142 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc5057bad/146e1dc4023745579389741aae6ae190 [2019-10-07 15:21:56,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:21:56,154 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:21:56,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:21:56,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:21:56,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:21:56,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:21:56" (1/1) ... [2019-10-07 15:21:56,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1dcce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:56, skipping insertion in model container [2019-10-07 15:21:56,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:21:56" (1/1) ... [2019-10-07 15:21:56,169 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:21:56,229 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:21:56,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:21:56,745 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:21:56,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:21:56,910 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:21:56,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:56 WrapperNode [2019-10-07 15:21:56,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:21:56,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:21:56,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:21:56,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:21:56,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:56" (1/1) ... [2019-10-07 15:21:56,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:56" (1/1) ... [2019-10-07 15:21:56,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:56" (1/1) ... [2019-10-07 15:21:56,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:56" (1/1) ... [2019-10-07 15:21:56,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:56" (1/1) ... [2019-10-07 15:21:56,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:56" (1/1) ... [2019-10-07 15:21:57,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:56" (1/1) ... [2019-10-07 15:21:57,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:21:57,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:21:57,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:21:57,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:21:57,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:56" (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 15:21:57,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:21:57,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:21:57,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:21:57,092 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:21:57,092 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:21:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:21:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:21:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:21:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:21:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:21:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:21:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:21:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:21:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-07 15:21:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:21:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:21:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:21:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:21:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:21:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:21:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:21:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:21:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-07 15:21:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:21:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:21:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:21:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:21:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:21:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:21:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:21:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:21:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:21:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:21:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:21:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:21:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:21:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:21:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:21:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:21:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:21:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:21:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:21:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:21:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:21:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:21:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:21:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:21:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:21:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:21:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-07 15:21:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:21:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:21:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:21:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:21:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:21:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:21:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:21:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:21:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:21:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:21:57,110 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:21:57,110 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-07 15:21:57,110 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:21:57,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:21:57,110 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:21:57,110 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:21:57,110 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:21:57,111 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:21:57,111 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:21:57,111 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:21:57,111 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:21:57,111 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:21:57,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:21:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:21:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:21:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:21:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:21:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:21:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:21:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:21:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:21:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:21:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:21:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:21:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:21:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:21:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:21:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:21:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:21:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:21:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:21:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:21:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:21:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:21:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:21:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:21:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:21:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:21:58,636 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:21:58,636 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:21:58,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:21:58 BoogieIcfgContainer [2019-10-07 15:21:58,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:21:58,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:21:58,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:21:58,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:21:58,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:21:56" (1/3) ... [2019-10-07 15:21:58,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a996805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:21:58, skipping insertion in model container [2019-10-07 15:21:58,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:56" (2/3) ... [2019-10-07 15:21:58,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a996805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:21:58, skipping insertion in model container [2019-10-07 15:21:58,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:21:58" (3/3) ... [2019-10-07 15:21:58,649 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2019-10-07 15:21:58,662 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:21:58,672 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:21:58,686 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:21:58,721 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:21:58,722 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:21:58,722 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:21:58,722 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:21:58,723 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:21:58,723 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:21:58,724 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:21:58,724 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:21:58,752 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-10-07 15:21:58,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-07 15:21:58,768 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:58,769 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 15:21:58,774 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:58,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:58,781 INFO L82 PathProgramCache]: Analyzing trace with hash 199906964, now seen corresponding path program 1 times [2019-10-07 15:21:58,791 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:58,791 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:58,792 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:58,792 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:58,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:59,195 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 15:21:59,195 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:59,196 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:59,196 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:21:59,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:21:59,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:21:59,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:21:59,217 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2019-10-07 15:21:59,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:59,285 INFO L93 Difference]: Finished difference Result 224 states and 269 transitions. [2019-10-07 15:21:59,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:21:59,287 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-07 15:21:59,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:59,308 INFO L225 Difference]: With dead ends: 224 [2019-10-07 15:21:59,308 INFO L226 Difference]: Without dead ends: 114 [2019-10-07 15:21:59,319 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 15:21:59,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-10-07 15:21:59,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-10-07 15:21:59,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-10-07 15:21:59,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2019-10-07 15:21:59,401 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 52 [2019-10-07 15:21:59,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:59,402 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2019-10-07 15:21:59,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:21:59,403 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2019-10-07 15:21:59,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-07 15:21:59,411 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:59,411 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 15:21:59,412 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:59,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:59,413 INFO L82 PathProgramCache]: Analyzing trace with hash 65146363, now seen corresponding path program 1 times [2019-10-07 15:21:59,413 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:59,414 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:59,414 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:59,414 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:59,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:59,598 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 15:21:59,598 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:59,599 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:59,599 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:21:59,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:21:59,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:21:59,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:21:59,602 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand 3 states. [2019-10-07 15:21:59,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:59,624 INFO L93 Difference]: Finished difference Result 182 states and 208 transitions. [2019-10-07 15:21:59,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:21:59,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-07 15:21:59,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:59,627 INFO L225 Difference]: With dead ends: 182 [2019-10-07 15:21:59,628 INFO L226 Difference]: Without dead ends: 106 [2019-10-07 15:21:59,629 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 15:21:59,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-10-07 15:21:59,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-10-07 15:21:59,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-07 15:21:59,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 119 transitions. [2019-10-07 15:21:59,644 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 119 transitions. Word has length 53 [2019-10-07 15:21:59,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:59,645 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 119 transitions. [2019-10-07 15:21:59,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:21:59,645 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 119 transitions. [2019-10-07 15:21:59,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-07 15:21:59,648 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:59,648 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] [2019-10-07 15:21:59,648 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:59,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:59,649 INFO L82 PathProgramCache]: Analyzing trace with hash 720940157, now seen corresponding path program 1 times [2019-10-07 15:21:59,649 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:59,649 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:59,649 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:59,650 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:59,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:59,850 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 15:21:59,850 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:59,851 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:59,851 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:21:59,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:21:59,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:21:59,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:21:59,854 INFO L87 Difference]: Start difference. First operand 106 states and 119 transitions. Second operand 7 states. [2019-10-07 15:22:00,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:00,199 INFO L93 Difference]: Finished difference Result 187 states and 214 transitions. [2019-10-07 15:22:00,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 15:22:00,200 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2019-10-07 15:22:00,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:00,204 INFO L225 Difference]: With dead ends: 187 [2019-10-07 15:22:00,204 INFO L226 Difference]: Without dead ends: 106 [2019-10-07 15:22:00,205 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:22:00,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-10-07 15:22:00,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-10-07 15:22:00,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-07 15:22:00,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2019-10-07 15:22:00,228 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 55 [2019-10-07 15:22:00,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:00,234 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2019-10-07 15:22:00,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:22:00,234 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2019-10-07 15:22:00,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-07 15:22:00,240 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:00,241 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] [2019-10-07 15:22:00,241 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:00,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:00,242 INFO L82 PathProgramCache]: Analyzing trace with hash -472915247, now seen corresponding path program 1 times [2019-10-07 15:22:00,242 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:00,243 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:00,243 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:00,243 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:00,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:00,414 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 15:22:00,414 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:00,415 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:00,415 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 15:22:00,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 15:22:00,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 15:22:00,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 15:22:00,418 INFO L87 Difference]: Start difference. First operand 106 states and 118 transitions. Second operand 5 states. [2019-10-07 15:22:00,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:00,981 INFO L93 Difference]: Finished difference Result 275 states and 323 transitions. [2019-10-07 15:22:00,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:22:00,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-10-07 15:22:00,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:00,986 INFO L225 Difference]: With dead ends: 275 [2019-10-07 15:22:00,987 INFO L226 Difference]: Without dead ends: 194 [2019-10-07 15:22:00,988 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 15:22:00,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-10-07 15:22:01,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 179. [2019-10-07 15:22:01,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-10-07 15:22:01,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 199 transitions. [2019-10-07 15:22:01,012 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 199 transitions. Word has length 68 [2019-10-07 15:22:01,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:01,013 INFO L462 AbstractCegarLoop]: Abstraction has 179 states and 199 transitions. [2019-10-07 15:22:01,013 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 15:22:01,013 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 199 transitions. [2019-10-07 15:22:01,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-07 15:22:01,014 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:01,014 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] [2019-10-07 15:22:01,015 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:01,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:01,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1083393428, now seen corresponding path program 1 times [2019-10-07 15:22:01,015 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:01,016 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:01,016 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:01,016 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:01,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:01,239 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 15:22:01,240 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:01,240 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:01,240 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:22:01,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:22:01,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:22:01,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:22:01,244 INFO L87 Difference]: Start difference. First operand 179 states and 199 transitions. Second operand 12 states. [2019-10-07 15:22:02,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:02,123 INFO L93 Difference]: Finished difference Result 475 states and 543 transitions. [2019-10-07 15:22:02,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:22:02,124 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2019-10-07 15:22:02,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:02,129 INFO L225 Difference]: With dead ends: 475 [2019-10-07 15:22:02,129 INFO L226 Difference]: Without dead ends: 321 [2019-10-07 15:22:02,131 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 15:22:02,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-10-07 15:22:02,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 309. [2019-10-07 15:22:02,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2019-10-07 15:22:02,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 352 transitions. [2019-10-07 15:22:02,169 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 352 transitions. Word has length 77 [2019-10-07 15:22:02,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:02,170 INFO L462 AbstractCegarLoop]: Abstraction has 309 states and 352 transitions. [2019-10-07 15:22:02,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:22:02,170 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 352 transitions. [2019-10-07 15:22:02,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-07 15:22:02,172 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:02,172 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] [2019-10-07 15:22:02,172 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:02,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:02,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1154175996, now seen corresponding path program 1 times [2019-10-07 15:22:02,173 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:02,173 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:02,173 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:02,173 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:02,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:02,259 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 15:22:02,259 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:02,260 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:02,260 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:22:02,260 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:22:02,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:22:02,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:22:02,261 INFO L87 Difference]: Start difference. First operand 309 states and 352 transitions. Second operand 7 states. [2019-10-07 15:22:02,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:02,818 INFO L93 Difference]: Finished difference Result 617 states and 725 transitions. [2019-10-07 15:22:02,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 15:22:02,822 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2019-10-07 15:22:02,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:02,829 INFO L225 Difference]: With dead ends: 617 [2019-10-07 15:22:02,829 INFO L226 Difference]: Without dead ends: 333 [2019-10-07 15:22:02,831 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 15:22:02,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2019-10-07 15:22:02,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 306. [2019-10-07 15:22:02,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-10-07 15:22:02,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 343 transitions. [2019-10-07 15:22:02,900 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 343 transitions. Word has length 77 [2019-10-07 15:22:02,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:02,904 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 343 transitions. [2019-10-07 15:22:02,904 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:22:02,904 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 343 transitions. [2019-10-07 15:22:02,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-07 15:22:02,909 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:02,909 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] [2019-10-07 15:22:02,910 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:02,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:02,910 INFO L82 PathProgramCache]: Analyzing trace with hash 949759218, now seen corresponding path program 1 times [2019-10-07 15:22:02,911 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:02,911 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:02,912 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:02,912 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:02,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:03,166 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 15:22:03,166 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:03,167 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:03,167 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 15:22:03,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 15:22:03,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 15:22:03,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 15:22:03,168 INFO L87 Difference]: Start difference. First operand 306 states and 343 transitions. Second operand 9 states. [2019-10-07 15:22:04,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:04,048 INFO L93 Difference]: Finished difference Result 931 states and 1073 transitions. [2019-10-07 15:22:04,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:22:04,049 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2019-10-07 15:22:04,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:04,055 INFO L225 Difference]: With dead ends: 931 [2019-10-07 15:22:04,055 INFO L226 Difference]: Without dead ends: 707 [2019-10-07 15:22:04,056 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-07 15:22:04,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-10-07 15:22:04,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 610. [2019-10-07 15:22:04,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2019-10-07 15:22:04,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 691 transitions. [2019-10-07 15:22:04,103 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 691 transitions. Word has length 80 [2019-10-07 15:22:04,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:04,104 INFO L462 AbstractCegarLoop]: Abstraction has 610 states and 691 transitions. [2019-10-07 15:22:04,104 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 15:22:04,104 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 691 transitions. [2019-10-07 15:22:04,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-07 15:22:04,106 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:04,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:22:04,107 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:04,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:04,107 INFO L82 PathProgramCache]: Analyzing trace with hash -991184073, now seen corresponding path program 1 times [2019-10-07 15:22:04,108 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:04,108 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:04,108 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:04,108 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:04,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:04,321 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-07 15:22:04,322 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:04,322 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:22:04,322 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 15:22:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:04,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-07 15:22:04,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:22:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:22:04,722 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:22:05,158 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-07 15:22:05,159 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:22:05,193 INFO L162 IcfgInterpreter]: Started Sifa with 99 locations of interest [2019-10-07 15:22:05,193 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:22:05,201 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:22:05,209 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:22:05,210 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:22:15,597 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:22:17,242 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-07 15:22:17,391 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:22:17,563 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:22:17,699 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:22:17,939 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:18,142 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:18,391 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:18,676 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:19,175 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-07 15:22:19,353 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:19,559 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:19,722 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:19,832 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:19,981 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:19,990 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-07 15:22:20,230 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-07 15:22:20,411 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:20,524 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:20,661 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:20,778 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:20,920 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:21,065 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:21,192 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:21,300 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:21,462 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:21,758 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 546 [2019-10-07 15:22:21,889 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:22,037 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:22,179 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:22,288 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:22,419 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:22,524 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:22,635 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:22,795 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:22,929 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:23,037 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:23,167 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:23,283 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:23,392 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:23,519 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:23,643 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:23,756 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:23,883 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:23,992 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:24,099 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:24,229 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:24,368 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:24,485 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:24,616 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:24,722 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:24,828 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:24,955 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:25,064 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:25,184 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:25,314 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:25,451 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:25,570 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:25,704 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:25,956 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:26,103 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:26,253 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:26,375 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:26,494 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:26,673 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:26,817 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:26,938 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:27,078 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:27,210 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:27,329 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:27,613 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:27,788 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:27,906 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:28,036 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:28,167 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:22:28,301 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:22:28,467 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:22:28,590 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:22:28,715 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:22:28,855 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:22:29,017 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:22:29,140 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:22:29,277 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:22:29,593 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 571 [2019-10-07 15:22:29,717 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:22:30,010 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:22:30,314 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:22:30,495 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:22:30,627 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:22:30,877 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:30,997 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:31,133 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:31,350 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:31,468 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:31,598 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:31,720 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:31,839 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:31,966 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:32,128 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:32,250 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:32,383 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:32,516 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:32,636 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:32,775 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:32,908 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:33,027 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:33,166 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:33,384 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 569 [2019-10-07 15:22:33,508 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:22:33,642 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:22:33,867 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 571 [2019-10-07 15:22:33,993 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:22:34,136 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:22:34,365 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:34,483 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:34,619 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:34,828 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:34,955 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:35,093 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:35,211 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:35,332 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:35,459 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:35,697 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:35,828 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:35,961 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:36,176 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:36,294 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:36,428 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:36,653 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:36,772 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:36,909 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:37,145 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:37,263 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:37,395 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:37,517 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:37,637 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:37,764 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:37,905 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:38,026 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:38,159 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:38,364 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:38,488 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:38,623 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:38,744 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:38,865 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:38,996 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:39,222 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 562 [2019-10-07 15:22:39,349 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:39,482 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:39,698 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 564 [2019-10-07 15:22:39,821 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:39,954 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:40,181 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:40,299 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:40,429 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:40,701 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:40,834 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:40,970 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:41,087 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:41,206 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:41,332 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:41,572 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:41,703 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:41,835 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:42,059 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:22:42,178 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:42,314 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:42,535 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:22:42,656 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:42,787 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:43,000 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:22:43,122 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:43,262 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:43,467 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-07 15:22:43,589 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:43,722 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:43,939 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 564 [2019-10-07 15:22:44,060 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:44,197 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:44,415 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-07 15:22:44,535 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:44,670 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:44,893 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:45,011 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:45,142 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:45,356 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:45,476 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:45,607 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:45,728 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:45,850 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:45,979 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:46,241 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:46,551 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:46,726 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:46,851 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:46,977 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:47,111 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:47,231 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:47,353 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:47,496 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:47,705 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 564 [2019-10-07 15:22:47,824 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:47,956 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:48,180 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:48,298 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:48,427 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:48,637 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:48,754 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:48,885 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:49,004 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:49,121 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:49,248 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:49,396 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:49,517 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:49,654 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:49,782 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:49,902 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:50,033 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:50,036 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 546 for LOIs [2019-10-07 15:22:50,141 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:50,247 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:50,375 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:50,505 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:22:50,615 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:22:50,744 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:50,942 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 548 [2019-10-07 15:22:51,049 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:22:51,177 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:51,284 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:22:51,391 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:22:51,517 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:51,523 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 548 for LOIs [2019-10-07 15:22:51,630 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:22:51,743 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:22:51,874 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:51,991 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:22:52,101 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:22:52,231 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:52,393 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:22:52,696 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:22:53,091 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:22:53,503 WARN L191 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:22:53,776 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:22:53,778 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 15:22:53,784 INFO L168 Benchmark]: Toolchain (without parser) took 57630.47 ms. Allocated memory was 143.1 MB in the beginning and 1.0 GB in the end (delta: 896.0 MB). Free memory was 102.1 MB in the beginning and 603.0 MB in the end (delta: -500.9 MB). Peak memory consumption was 395.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:22:53,785 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory is still 121.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 15:22:53,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.98 ms. Allocated memory was 143.1 MB in the beginning and 202.9 MB in the end (delta: 59.8 MB). Free memory was 102.1 MB in the beginning and 170.1 MB in the end (delta: -68.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:22:53,785 INFO L168 Benchmark]: Boogie Preprocessor took 109.70 ms. Allocated memory is still 202.9 MB. Free memory was 170.1 MB in the beginning and 166.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:22:53,786 INFO L168 Benchmark]: RCFGBuilder took 1616.89 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.2 MB in the beginning and 144.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:22:53,786 INFO L168 Benchmark]: TraceAbstraction took 55142.66 ms. Allocated memory was 235.9 MB in the beginning and 1.0 GB in the end (delta: 803.2 MB). Free memory was 144.7 MB in the beginning and 603.0 MB in the end (delta: -458.3 MB). Peak memory consumption was 344.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:22:53,788 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory is still 121.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 755.98 ms. Allocated memory was 143.1 MB in the beginning and 202.9 MB in the end (delta: 59.8 MB). Free memory was 102.1 MB in the beginning and 170.1 MB in the end (delta: -68.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.70 ms. Allocated memory is still 202.9 MB. Free memory was 170.1 MB in the beginning and 166.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1616.89 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.2 MB in the beginning and 144.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 55142.66 ms. Allocated memory was 235.9 MB in the beginning and 1.0 GB in the end (delta: 803.2 MB). Free memory was 144.7 MB in the beginning and 603.0 MB in the end (delta: -458.3 MB). Peak memory consumption was 344.9 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...