java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer ReUseSupersetCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 20:41:04,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 20:41:04,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 20:41:04,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 20:41:04,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 20:41:04,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 20:41:04,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 20:41:04,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 20:41:04,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 20:41:04,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 20:41:04,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 20:41:04,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 20:41:04,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 20:41:04,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 20:41:04,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 20:41:04,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 20:41:04,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 20:41:04,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 20:41:04,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 20:41:04,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 20:41:04,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 20:41:04,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 20:41:04,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 20:41:04,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 20:41:04,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 20:41:04,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 20:41:04,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 20:41:04,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 20:41:04,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 20:41:04,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 20:41:04,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 20:41:04,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 20:41:04,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 20:41:04,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 20:41:04,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 20:41:04,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 20:41:04,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 20:41:04,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 20:41:04,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 20:41:04,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 20:41:04,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 20:41:04,489 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 [2019-09-20 20:41:04,511 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 20:41:04,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 20:41:04,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 20:41:04,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 20:41:04,514 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 20:41:04,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 20:41:04,515 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 20:41:04,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 20:41:04,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 20:41:04,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 20:41:04,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 20:41:04,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 20:41:04,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 20:41:04,517 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 20:41:04,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 20:41:04,518 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 20:41:04,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 20:41:04,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 20:41:04,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 20:41:04,518 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 20:41:04,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 20:41:04,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 20:41:04,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 20:41:04,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 20:41:04,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 20:41:04,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 20:41:04,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 20:41:04,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 20:41:04,520 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain 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 -> ReUseSupersetCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-20 20:41:04,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 20:41:04,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 20:41:04,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 20:41:04,589 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 20:41:04,590 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 20:41:04,590 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-20 20:41:04,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9203cbc80/25df2a9fb9774d588c11b056edc13d7b/FLAG6e804243f [2019-09-20 20:41:05,133 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 20:41:05,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-20 20:41:05,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9203cbc80/25df2a9fb9774d588c11b056edc13d7b/FLAG6e804243f [2019-09-20 20:41:05,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9203cbc80/25df2a9fb9774d588c11b056edc13d7b [2019-09-20 20:41:05,510 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 20:41:05,511 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 20:41:05,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 20:41:05,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 20:41:05,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 20:41:05,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:41:05" (1/1) ... [2019-09-20 20:41:05,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a5d3bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:05, skipping insertion in model container [2019-09-20 20:41:05,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:41:05" (1/1) ... [2019-09-20 20:41:05,528 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 20:41:05,573 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 20:41:05,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 20:41:05,797 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 20:41:05,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 20:41:05,960 INFO L192 MainTranslator]: Completed translation [2019-09-20 20:41:05,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:05 WrapperNode [2019-09-20 20:41:05,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 20:41:05,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 20:41:05,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 20:41:05,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 20:41:05,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:05" (1/1) ... [2019-09-20 20:41:05,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:05" (1/1) ... [2019-09-20 20:41:05,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:05" (1/1) ... [2019-09-20 20:41:05,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:05" (1/1) ... [2019-09-20 20:41:05,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:05" (1/1) ... [2019-09-20 20:41:06,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:05" (1/1) ... [2019-09-20 20:41:06,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:05" (1/1) ... [2019-09-20 20:41:06,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 20:41:06,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 20:41:06,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 20:41:06,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 20:41:06,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 20:41:06,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 20:41:06,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 20:41:06,079 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-20 20:41:06,079 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-20 20:41:06,079 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-20 20:41:06,079 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-20 20:41:06,080 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-20 20:41:06,080 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-20 20:41:06,080 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-20 20:41:06,080 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-20 20:41:06,080 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-20 20:41:06,080 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-20 20:41:06,081 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-20 20:41:06,081 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-20 20:41:06,081 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-09-20 20:41:06,081 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-09-20 20:41:06,081 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-20 20:41:06,081 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-20 20:41:06,082 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-20 20:41:06,082 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-20 20:41:06,082 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-20 20:41:06,082 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 20:41:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 20:41:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 20:41:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-20 20:41:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-20 20:41:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-20 20:41:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-20 20:41:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-20 20:41:06,084 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-20 20:41:06,084 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-20 20:41:06,084 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-20 20:41:06,084 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-20 20:41:06,084 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-20 20:41:06,086 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-20 20:41:06,086 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-20 20:41:06,087 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-09-20 20:41:06,087 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-09-20 20:41:06,087 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-20 20:41:06,088 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-20 20:41:06,088 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-20 20:41:06,088 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-20 20:41:06,088 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-20 20:41:06,088 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 20:41:06,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 20:41:06,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 20:41:06,661 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := ~a~0; [2019-09-20 20:41:06,661 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2019-09-20 20:41:06,932 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 20:41:06,932 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 20:41:06,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:41:06 BoogieIcfgContainer [2019-09-20 20:41:06,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 20:41:06,934 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 20:41:06,935 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 20:41:06,935 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 20:41:06,936 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:41:06" (1/1) ... [2019-09-20 20:41:06,937 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-20 20:41:06,965 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 20:41:06,965 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 20:41:06,975 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 20:41:06,985 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 20:41:06,987 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 20:41:07,216 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 82 for LOIs [2019-09-20 20:41:07,366 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-09-20 20:41:07,474 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 80 for LOIs [2019-09-20 20:41:07,652 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-20 20:41:07,972 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-20 20:41:08,169 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2019-09-20 20:41:08,398 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-09-20 20:41:08,588 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2019-09-20 20:41:09,053 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-20 20:41:09,237 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2019-09-20 20:41:10,256 WARN L191 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-20 20:41:10,501 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-20 20:41:11,185 WARN L191 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-20 20:41:11,424 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-20 20:41:11,748 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2019-09-20 20:41:11,911 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-09-20 20:41:12,536 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 96 [2019-09-20 20:41:12,792 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-09-20 20:41:13,808 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2019-09-20 20:41:14,280 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 20:41:14,538 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-09-20 20:41:14,812 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-09-20 20:41:15,845 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 127 DAG size of output: 115 [2019-09-20 20:41:16,371 WARN L191 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-20 20:41:17,462 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 123 DAG size of output: 116 [2019-09-20 20:41:17,987 WARN L191 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-09-20 20:41:18,285 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2019-09-20 20:41:18,417 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-09-20 20:41:19,464 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 125 DAG size of output: 107 [2019-09-20 20:41:19,924 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 20:41:20,913 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 107 [2019-09-20 20:41:21,368 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 20:41:21,930 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 92 [2019-09-20 20:41:22,177 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-20 20:41:22,347 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-09-20 20:41:23,285 WARN L191 SmtUtils]: Spent 925.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 107 [2019-09-20 20:41:23,727 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 20:41:24,309 WARN L191 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 93 [2019-09-20 20:41:24,555 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-09-20 20:41:25,104 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 92 [2019-09-20 20:41:25,345 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-20 20:41:26,318 WARN L191 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 109 [2019-09-20 20:41:26,614 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 17 [2019-09-20 20:41:26,767 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2019-09-20 20:41:27,106 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-20 20:41:28,217 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2019-09-20 20:41:28,492 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 32 [2019-09-20 20:41:29,404 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2019-09-20 20:41:29,815 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-20 20:41:30,276 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-09-20 20:41:30,379 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-09-20 20:41:30,484 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-09-20 20:41:30,585 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-09-20 20:41:30,782 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-20 20:41:31,306 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 41 [2019-09-20 20:41:31,809 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 41 [2019-09-20 20:41:32,082 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-20 20:41:32,304 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2019-09-20 20:41:32,421 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2019-09-20 20:41:32,719 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2019-09-20 20:41:32,834 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2019-09-20 20:41:32,955 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-09-20 20:41:33,076 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-09-20 20:41:33,431 WARN L191 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 50 [2019-09-20 20:41:33,541 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-09-20 20:41:33,844 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 50 [2019-09-20 20:41:34,181 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-20 20:41:34,302 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-09-20 20:41:34,579 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 59 [2019-09-20 20:41:34,706 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-09-20 20:41:34,856 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2019-09-20 20:41:35,015 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2019-09-20 20:41:35,184 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-09-20 20:41:35,346 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-09-20 20:41:36,177 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 81 [2019-09-20 20:41:36,327 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 20:41:36,783 WARN L191 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 62 [2019-09-20 20:41:36,886 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2019-09-20 20:41:37,340 WARN L191 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 39 [2019-09-20 20:41:37,731 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 32 [2019-09-20 20:41:37,948 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 34 [2019-09-20 20:41:38,288 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 37 [2019-09-20 20:41:38,951 WARN L191 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 36 [2019-09-20 20:41:39,387 WARN L191 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 36 [2019-09-20 20:41:39,567 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2019-09-20 20:41:39,832 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 37 [2019-09-20 20:41:40,002 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2019-09-20 20:41:41,399 WARN L191 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 93 [2019-09-20 20:41:41,628 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-09-20 20:41:41,892 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-20 20:41:42,666 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 112 [2019-09-20 20:41:42,900 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-20 20:41:43,434 WARN L191 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 112 [2019-09-20 20:41:43,667 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-20 20:41:44,307 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 122 [2019-09-20 20:41:44,601 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-20 20:41:45,260 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 116 [2019-09-20 20:41:45,964 WARN L191 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 122 [2019-09-20 20:41:46,262 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-20 20:41:46,834 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 121 [2019-09-20 20:41:47,119 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-20 20:41:47,796 WARN L191 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 128 [2019-09-20 20:41:48,101 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-20 20:41:48,677 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 127 [2019-09-20 20:41:48,935 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-20 20:41:49,684 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 130