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_spec1_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:15:37,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:15:37,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:15:37,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:15:37,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:15:37,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:15:37,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:15:37,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:15:37,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:15:37,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:15:37,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:15:37,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:15:37,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:15:37,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:15:37,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:15:37,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:15:37,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:15:37,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:15:37,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:15:37,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:15:37,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:15:37,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:15:37,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:15:37,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:15:37,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:15:37,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:15:37,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:15:37,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:15:37,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:15:37,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:15:37,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:15:37,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:15:37,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:15:37,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:15:37,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:15:37,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:15:37,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:15:37,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:15:37,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:15:37,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:15:37,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:15:37,794 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 15:15:37,808 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:15:37,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:15:37,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:15:37,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:15:37,810 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:15:37,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:15:37,811 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:15:37,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:15:37,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:15:37,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:15:37,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:15:37,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:15:37,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:15:37,812 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:15:37,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:15:37,812 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:15:37,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:15:37,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:15:37,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:15:37,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:15:37,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:15:37,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:15:37,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:15:37,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:15:37,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:15:37,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:15:37,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:15:37,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:15:37,815 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 15:15:38,145 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:15:38,166 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:15:38,169 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:15:38,170 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:15:38,170 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:15:38,171 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product60.cil.c [2019-10-07 15:15:38,242 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f25385b46/3a6af6c081ff43e49a35e9701feab8cf/FLAG66b2cff64 [2019-10-07 15:15:38,816 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:15:38,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product60.cil.c [2019-10-07 15:15:38,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f25385b46/3a6af6c081ff43e49a35e9701feab8cf/FLAG66b2cff64 [2019-10-07 15:15:39,140 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f25385b46/3a6af6c081ff43e49a35e9701feab8cf [2019-10-07 15:15:39,150 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:15:39,151 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:15:39,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:15:39,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:15:39,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:15:39,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:15:39" (1/1) ... [2019-10-07 15:15:39,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6886fec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:39, skipping insertion in model container [2019-10-07 15:15:39,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:15:39" (1/1) ... [2019-10-07 15:15:39,166 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:15:39,239 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:15:39,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:15:39,758 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:15:39,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:15:39,880 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:15:39,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:39 WrapperNode [2019-10-07 15:15:39,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:15:39,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:15:39,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:15:39,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:15:39,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:39" (1/1) ... [2019-10-07 15:15:39,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:39" (1/1) ... [2019-10-07 15:15:39,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:39" (1/1) ... [2019-10-07 15:15:39,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:39" (1/1) ... [2019-10-07 15:15:39,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:39" (1/1) ... [2019-10-07 15:15:39,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:39" (1/1) ... [2019-10-07 15:15:39,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:39" (1/1) ... [2019-10-07 15:15:39,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:15:39,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:15:39,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:15:39,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:15:39,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:39" (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 15:15:40,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:15:40,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:15:40,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:15:40,049 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:15:40,050 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:15:40,050 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:15:40,050 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:15:40,050 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:15:40,050 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:15:40,051 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:15:40,051 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:15:40,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:15:40,051 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:15:40,051 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:15:40,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:15:40,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-07 15:15:40,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-07 15:15:40,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:15:40,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:15:40,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:15:40,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:15:40,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:15:40,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:15:40,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:15:40,057 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:15:40,057 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:15:40,057 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:15:40,057 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:15:40,057 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:15:40,058 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-07 15:15:40,058 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:15:40,058 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:15:40,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:15:40,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:15:40,059 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:15:40,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:15:40,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-07 15:15:40,059 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-07 15:15:40,060 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-07 15:15:40,060 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:15:40,060 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:15:40,060 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:15:40,060 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:15:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:15:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:15:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:15:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:15:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:15:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:15:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:15:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:15:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:15:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:15:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:15:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:15:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:15:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:15:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:15:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:15:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:15:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:15:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:15:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:15:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:15:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-07 15:15:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:15:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:15:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:15:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-07 15:15:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:15:40,066 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:15:40,066 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:15:40,066 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:15:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:15:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:15:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:15:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:15:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:15:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:15:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:15:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:15:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:15:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:15:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:15:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:15:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-07 15:15:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-07 15:15:40,072 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:15:40,072 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:15:40,072 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:15:40,072 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:15:40,072 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:15:40,072 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:15:40,073 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-07 15:15:40,073 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-07 15:15:40,073 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:15:40,073 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:15:40,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:15:40,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:15:40,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:15:41,647 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:15:41,647 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:15:41,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:15:41 BoogieIcfgContainer [2019-10-07 15:15:41,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:15:41,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:15:41,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:15:41,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:15:41,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:15:39" (1/3) ... [2019-10-07 15:15:41,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60393e4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:15:41, skipping insertion in model container [2019-10-07 15:15:41,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:39" (2/3) ... [2019-10-07 15:15:41,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60393e4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:15:41, skipping insertion in model container [2019-10-07 15:15:41,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:15:41" (3/3) ... [2019-10-07 15:15:41,658 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product60.cil.c [2019-10-07 15:15:41,669 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:15:41,681 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:15:41,694 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:15:41,729 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:15:41,729 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:15:41,729 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:15:41,730 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:15:41,730 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:15:41,731 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:15:41,731 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:15:41,731 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:15:41,769 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2019-10-07 15:15:41,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-07 15:15:41,787 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:41,788 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:15:41,790 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:41,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:41,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1995718927, now seen corresponding path program 1 times [2019-10-07 15:15:41,806 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:41,807 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:41,808 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:41,811 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:41,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:42,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:15:42,209 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:42,209 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:15:42,210 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:15:42,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:15:42,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:15:42,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:15:42,232 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 2 states. [2019-10-07 15:15:42,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:15:42,279 INFO L93 Difference]: Finished difference Result 253 states and 306 transitions. [2019-10-07 15:15:42,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:15:42,283 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-07 15:15:42,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:15:42,308 INFO L225 Difference]: With dead ends: 253 [2019-10-07 15:15:42,308 INFO L226 Difference]: Without dead ends: 127 [2019-10-07 15:15:42,320 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 15:15:42,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-10-07 15:15:42,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2019-10-07 15:15:42,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-10-07 15:15:42,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 147 transitions. [2019-10-07 15:15:42,426 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 147 transitions. Word has length 42 [2019-10-07 15:15:42,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:15:42,427 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 147 transitions. [2019-10-07 15:15:42,427 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:15:42,428 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 147 transitions. [2019-10-07 15:15:42,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-07 15:15:42,434 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:42,434 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:15:42,435 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:42,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:42,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1543283696, now seen corresponding path program 1 times [2019-10-07 15:15:42,437 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:42,437 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:42,437 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:42,437 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:42,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:42,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:15:42,633 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:42,633 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:15:42,634 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:15:42,638 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:15:42,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:15:42,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:15:42,639 INFO L87 Difference]: Start difference. First operand 127 states and 147 transitions. Second operand 3 states. [2019-10-07 15:15:42,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:15:42,691 INFO L93 Difference]: Finished difference Result 201 states and 231 transitions. [2019-10-07 15:15:42,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:15:42,694 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-07 15:15:42,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:15:42,697 INFO L225 Difference]: With dead ends: 201 [2019-10-07 15:15:42,697 INFO L226 Difference]: Without dead ends: 119 [2019-10-07 15:15:42,699 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 15:15:42,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-10-07 15:15:42,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-10-07 15:15:42,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-10-07 15:15:42,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 136 transitions. [2019-10-07 15:15:42,714 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 136 transitions. Word has length 43 [2019-10-07 15:15:42,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:15:42,714 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 136 transitions. [2019-10-07 15:15:42,715 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:15:42,715 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 136 transitions. [2019-10-07 15:15:42,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-07 15:15:42,717 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:42,717 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:15:42,717 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:42,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:42,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1849024731, now seen corresponding path program 1 times [2019-10-07 15:15:42,718 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:42,718 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:42,719 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:42,719 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:42,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:42,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:15:42,897 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:42,897 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:15:42,897 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:15:42,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:15:42,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:15:42,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:15:42,899 INFO L87 Difference]: Start difference. First operand 119 states and 136 transitions. Second operand 7 states. [2019-10-07 15:15:43,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:15:43,363 INFO L93 Difference]: Finished difference Result 358 states and 424 transitions. [2019-10-07 15:15:43,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:15:43,364 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2019-10-07 15:15:43,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:15:43,368 INFO L225 Difference]: With dead ends: 358 [2019-10-07 15:15:43,368 INFO L226 Difference]: Without dead ends: 261 [2019-10-07 15:15:43,369 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:15:43,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2019-10-07 15:15:43,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 249. [2019-10-07 15:15:43,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2019-10-07 15:15:43,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 294 transitions. [2019-10-07 15:15:43,429 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 294 transitions. Word has length 47 [2019-10-07 15:15:43,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:15:43,430 INFO L462 AbstractCegarLoop]: Abstraction has 249 states and 294 transitions. [2019-10-07 15:15:43,430 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:15:43,430 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 294 transitions. [2019-10-07 15:15:43,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-07 15:15:43,436 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:43,436 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:15:43,438 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:43,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:43,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1498427456, now seen corresponding path program 1 times [2019-10-07 15:15:43,439 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:43,443 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:43,443 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:43,444 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:43,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:43,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:15:43,575 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:43,575 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:15:43,575 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 15:15:43,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 15:15:43,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 15:15:43,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 15:15:43,577 INFO L87 Difference]: Start difference. First operand 249 states and 294 transitions. Second operand 6 states. [2019-10-07 15:15:43,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:15:43,849 INFO L93 Difference]: Finished difference Result 688 states and 831 transitions. [2019-10-07 15:15:43,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 15:15:43,849 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2019-10-07 15:15:43,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:15:43,860 INFO L225 Difference]: With dead ends: 688 [2019-10-07 15:15:43,861 INFO L226 Difference]: Without dead ends: 461 [2019-10-07 15:15:43,865 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-07 15:15:43,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2019-10-07 15:15:43,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 449. [2019-10-07 15:15:43,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2019-10-07 15:15:43,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 534 transitions. [2019-10-07 15:15:43,932 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 534 transitions. Word has length 51 [2019-10-07 15:15:43,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:15:43,933 INFO L462 AbstractCegarLoop]: Abstraction has 449 states and 534 transitions. [2019-10-07 15:15:43,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 15:15:43,942 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 534 transitions. [2019-10-07 15:15:43,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-07 15:15:43,946 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:43,946 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:15:43,948 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:43,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:43,948 INFO L82 PathProgramCache]: Analyzing trace with hash -854929592, now seen corresponding path program 1 times [2019-10-07 15:15:43,949 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:43,949 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:43,949 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:43,949 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:43,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:44,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:15:44,102 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:44,102 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:15:44,102 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:15:44,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:15:44,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:15:44,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:15:44,106 INFO L87 Difference]: Start difference. First operand 449 states and 534 transitions. Second operand 7 states. [2019-10-07 15:15:44,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:15:44,885 INFO L93 Difference]: Finished difference Result 1179 states and 1520 transitions. [2019-10-07 15:15:44,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 15:15:44,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 54 [2019-10-07 15:15:44,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:15:44,891 INFO L225 Difference]: With dead ends: 1179 [2019-10-07 15:15:44,891 INFO L226 Difference]: Without dead ends: 752 [2019-10-07 15:15:44,893 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-07 15:15:44,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2019-10-07 15:15:44,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 663. [2019-10-07 15:15:44,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 663 states. [2019-10-07 15:15:44,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 789 transitions. [2019-10-07 15:15:44,946 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 789 transitions. Word has length 54 [2019-10-07 15:15:44,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:15:44,947 INFO L462 AbstractCegarLoop]: Abstraction has 663 states and 789 transitions. [2019-10-07 15:15:44,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:15:44,947 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 789 transitions. [2019-10-07 15:15:44,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-10-07 15:15:44,950 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:44,950 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:15:44,951 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:44,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:44,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1591472147, now seen corresponding path program 1 times [2019-10-07 15:15:44,951 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:44,951 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:44,952 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:44,952 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:44,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:45,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:15:45,168 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:45,168 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:15:45,168 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 15:15:45,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:45,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-07 15:15:45,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:15:45,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:15:45,456 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:15:46,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:15:46,052 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:15:46,052 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14, 11] total 23 [2019-10-07 15:15:46,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 15:15:46,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 15:15:46,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2019-10-07 15:15:46,056 INFO L87 Difference]: Start difference. First operand 663 states and 789 transitions. Second operand 11 states. [2019-10-07 15:15:46,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:15:46,781 INFO L93 Difference]: Finished difference Result 1591 states and 1975 transitions. [2019-10-07 15:15:46,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 15:15:46,782 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 85 [2019-10-07 15:15:46,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:15:46,790 INFO L225 Difference]: With dead ends: 1591 [2019-10-07 15:15:46,790 INFO L226 Difference]: Without dead ends: 950 [2019-10-07 15:15:46,793 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=683, Unknown=0, NotChecked=0, Total=812 [2019-10-07 15:15:46,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2019-10-07 15:15:46,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 930. [2019-10-07 15:15:46,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2019-10-07 15:15:46,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1118 transitions. [2019-10-07 15:15:46,873 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1118 transitions. Word has length 85 [2019-10-07 15:15:46,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:15:46,876 INFO L462 AbstractCegarLoop]: Abstraction has 930 states and 1118 transitions. [2019-10-07 15:15:46,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 15:15:46,877 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1118 transitions. [2019-10-07 15:15:46,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-07 15:15:46,883 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:46,883 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:47,088 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:15:47,092 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:47,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:47,092 INFO L82 PathProgramCache]: Analyzing trace with hash -857534902, now seen corresponding path program 1 times [2019-10-07 15:15:47,092 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:47,093 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:47,093 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:47,093 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:47,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:47,382 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 15:15:47,383 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:47,383 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:15:47,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:15:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:47,594 INFO L256 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-07 15:15:47,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:15:47,778 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:47,780 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:47,879 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:47,951 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:15:47,951 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:15:48,744 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:49,306 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:49,307 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:49,329 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:49,590 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 15:15:49,591 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:15:49,591 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-10-07 15:15:49,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:15:49,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:15:49,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1039, Unknown=0, NotChecked=0, Total=1190 [2019-10-07 15:15:49,593 INFO L87 Difference]: Start difference. First operand 930 states and 1118 transitions. Second operand 14 states. [2019-10-07 15:15:52,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:15:52,063 INFO L93 Difference]: Finished difference Result 2679 states and 3364 transitions. [2019-10-07 15:15:52,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-07 15:15:52,064 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 132 [2019-10-07 15:15:52,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:15:52,076 INFO L225 Difference]: With dead ends: 2679 [2019-10-07 15:15:52,076 INFO L226 Difference]: Without dead ends: 1771 [2019-10-07 15:15:52,080 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 241 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=386, Invalid=2476, Unknown=0, NotChecked=0, Total=2862 [2019-10-07 15:15:52,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2019-10-07 15:15:52,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1659. [2019-10-07 15:15:52,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1659 states. [2019-10-07 15:15:52,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 2013 transitions. [2019-10-07 15:15:52,182 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 2013 transitions. Word has length 132 [2019-10-07 15:15:52,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:15:52,182 INFO L462 AbstractCegarLoop]: Abstraction has 1659 states and 2013 transitions. [2019-10-07 15:15:52,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:15:52,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 2013 transitions. [2019-10-07 15:15:52,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 15:15:52,188 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:52,189 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:52,394 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:15:52,395 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:52,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:52,395 INFO L82 PathProgramCache]: Analyzing trace with hash -155037944, now seen corresponding path program 1 times [2019-10-07 15:15:52,396 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:52,396 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:52,396 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:52,396 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:52,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:15:52,757 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:52,757 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:15:52,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:15:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:52,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 56 conjunts are in the unsatisfiable core [2019-10-07 15:15:52,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:15:53,072 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:53,117 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:53,313 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:15:53,313 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:15:53,650 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:53,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:53,705 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:53,781 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:53,782 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:53,898 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:53,919 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:54,026 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:54,027 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:54,071 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:54,221 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:15:54,221 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:15:54,259 INFO L162 IcfgInterpreter]: Started Sifa with 107 locations of interest [2019-10-07 15:15:54,260 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:15:54,266 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:15:54,275 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:15:54,275 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:16:04,273 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 15:16:06,066 WARN L191 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-07 15:16:06,226 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-07 15:16:06,385 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-07 15:16:06,493 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-07 15:16:06,679 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:16:06,864 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:16:07,059 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:16:07,290 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:16:07,580 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-07 15:16:07,712 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:16:07,846 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:16:08,019 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:16:08,155 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:16:08,298 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:16:08,307 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-07 15:16:08,538 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-07 15:16:08,678 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:08,784 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:08,908 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:09,024 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:09,127 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:09,292 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:09,440 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:09,543 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:09,664 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:09,926 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 544 [2019-10-07 15:16:10,062 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:10,210 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:10,528 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:10,646 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:10,857 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:10,966 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:11,178 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:11,424 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:11,537 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:11,845 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:12,172 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:12,476 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:12,782 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:13,022 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:13,135 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:13,294 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:13,401 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:13,517 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:13,721 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:13,826 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:13,959 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:14,068 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:14,178 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:14,293 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:14,418 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:14,528 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:14,648 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:14,877 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:16:15,002 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:15,130 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:15,239 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:15,345 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:15,460 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:15,575 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:16:15,683 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:16:15,868 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:16:16,041 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:16,154 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:16,275 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:16,399 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:16,513 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:16,637 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:16,862 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-07 15:16:16,975 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:17,132 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:17,245 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:17,354 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:17,473 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:17,823 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:17,946 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:18,135 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:18,323 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:18,434 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:18,560 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:18,664 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:18,769 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:18,883 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:19,112 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:16:19,222 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:19,341 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:19,565 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:16:19,670 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:19,792 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:19,999 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:16:20,105 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:20,230 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:20,434 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 565 [2019-10-07 15:16:20,546 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:16:20,682 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:16:20,879 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-07 15:16:20,993 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:21,116 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:21,319 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:21,428 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:21,544 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:21,899 WARN L191 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:22,029 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:22,148 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:22,254 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:22,361 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:22,483 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:22,689 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:22,799 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:22,918 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:23,166 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:23,274 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:23,393 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:23,501 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:23,613 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:23,728 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:24,133 WARN L191 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:16:24,243 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:24,362 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:24,546 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:16:24,655 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:24,791 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:25,004 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:25,109 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:25,225 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:25,434 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:25,538 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:25,653 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:25,852 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:25,960 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:26,080 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:26,269 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:26,373 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:26,489 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:26,598 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:26,703 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:26,816 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:27,230 WARN L191 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:16:27,501 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:27,836 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:28,238 WARN L191 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:16:28,380 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:28,502 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:28,608 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:28,715 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:28,833 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:29,028 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 565 [2019-10-07 15:16:29,137 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:16:29,261 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:16:29,466 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-07 15:16:29,578 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:29,698 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:29,895 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:30,007 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:30,123 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:30,316 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:30,420 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:30,556 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:30,664 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:30,770 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:30,884 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:31,079 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:16:31,187 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:31,308 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:31,519 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:16:31,629 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:31,749 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:31,943 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:16:32,050 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:32,168 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:32,351 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 558 [2019-10-07 15:16:32,461 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:32,582 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:32,766 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 560 [2019-10-07 15:16:32,878 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:33,005 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:33,209 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 560 [2019-10-07 15:16:33,321 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:33,439 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:33,629 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 560 [2019-10-07 15:16:33,734 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:33,859 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:34,061 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:34,171 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:34,287 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:34,480 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:34,590 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:34,704 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:34,812 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:34,916 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:35,030 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:35,159 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:35,274 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:35,396 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:35,589 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:16:35,696 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:35,816 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:36,016 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:16:36,123 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:36,245 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:36,438 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:16:36,548 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:36,663 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:36,666 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 544 for LOIs [2019-10-07 15:16:36,875 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:36,989 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:36,993 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 542 for LOIs [2019-10-07 15:16:37,190 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-07 15:16:37,304 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:37,640 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:37,840 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:37,960 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:38,285 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:38,493 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 553 [2019-10-07 15:16:38,621 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:16:38,750 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:39,027 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:39,413 WARN L191 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 575 [2019-10-07 15:16:39,637 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 557 [2019-10-07 15:16:39,951 WARN L191 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:40,320 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:40,434 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:40,705 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:41,048 WARN L191 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:41,421 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:41,766 WARN L191 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:41,874 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:42,154 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:42,481 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:42,587 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:42,853 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:43,181 WARN L191 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:43,285 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:43,572 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:43,897 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:44,003 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:44,279 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:44,610 WARN L191 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:44,716 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:44,996 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:45,321 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:45,427 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:45,691 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:46,028 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:46,132 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:46,405 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:46,748 WARN L191 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:46,851 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:47,137 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:47,467 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:47,569 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:47,832 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:48,163 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:48,265 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:48,530 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:48,866 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:48,970 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:49,254 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:49,590 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:49,698 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:49,965 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:50,299 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:50,402 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:50,666 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:51,001 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:51,104 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:51,369 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:51,695 WARN L191 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:51,800 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:52,068 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:52,403 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:52,505 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:52,770 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:53,106 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:53,209 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:53,476 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:53,804 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:54,165 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:16:54,490 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:16:54,849 WARN L191 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:16:55,255 WARN L191 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:16:55,649 WARN L191 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:16:56,058 WARN L191 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:16:56,461 WARN L191 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:16:56,861 WARN L191 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:16:57,274 WARN L191 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:16:57,678 WARN L191 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:16:58,064 WARN L191 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:16:58,455 WARN L191 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:16:58,866 WARN L191 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:16:59,284 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:16:59,688 WARN L191 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:00,091 WARN L191 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:00,485 WARN L191 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:00,885 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:01,299 WARN L191 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:01,699 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:02,105 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:02,507 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:02,905 WARN L191 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:04,181 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:04,182 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.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 15:17:04,189 INFO L168 Benchmark]: Toolchain (without parser) took 85038.33 ms. Allocated memory was 144.7 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 100.1 MB in the beginning and 654.3 MB in the end (delta: -554.2 MB). Peak memory consumption was 657.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:17:04,190 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 15:17:04,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.53 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 99.9 MB in the beginning and 167.8 MB in the end (delta: -67.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:17:04,190 INFO L168 Benchmark]: Boogie Preprocessor took 101.39 ms. Allocated memory is still 201.9 MB. Free memory was 167.8 MB in the beginning and 163.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:17:04,191 INFO L168 Benchmark]: RCFGBuilder took 1666.25 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 163.1 MB in the beginning and 142.6 MB in the end (delta: 20.5 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:17:04,191 INFO L168 Benchmark]: TraceAbstraction took 82537.51 ms. Allocated memory was 233.8 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 142.6 MB in the beginning and 654.3 MB in the end (delta: -511.7 MB). Peak memory consumption was 611.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:17:04,193 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.53 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 99.9 MB in the beginning and 167.8 MB in the end (delta: -67.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.39 ms. Allocated memory is still 201.9 MB. Free memory was 167.8 MB in the beginning and 163.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1666.25 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 163.1 MB in the beginning and 142.6 MB in the end (delta: 20.5 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 82537.51 ms. Allocated memory was 233.8 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 142.6 MB in the beginning and 654.3 MB in the end (delta: -511.7 MB). Peak memory consumption was 611.3 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...