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 CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-04 14:30:50,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-04 14:30:50,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-04 14:30:50,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-04 14:30:50,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-04 14:30:50,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-04 14:30:50,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-04 14:30:50,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-04 14:30:50,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-04 14:30:50,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-04 14:30:50,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-04 14:30:50,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-04 14:30:50,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-04 14:30:50,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-04 14:30:50,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-04 14:30:50,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-04 14:30:50,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-04 14:30:50,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-04 14:30:50,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-04 14:30:50,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-04 14:30:50,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-04 14:30:50,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-04 14:30:50,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-04 14:30:50,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-04 14:30:50,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-04 14:30:50,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-04 14:30:50,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-04 14:30:50,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-04 14:30:50,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-04 14:30:50,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-04 14:30:50,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-04 14:30:50,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-04 14:30:50,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-04 14:30:50,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-04 14:30:50,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-04 14:30:50,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-04 14:30:50,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-04 14:30:50,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-04 14:30:50,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-04 14:30:50,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-04 14:30:50,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-04 14:30:50,430 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 [2019-10-04 14:30:50,445 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-04 14:30:50,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-04 14:30:50,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-04 14:30:50,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-04 14:30:50,448 INFO L138 SettingsManager]: * Use SBE=true [2019-10-04 14:30:50,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-04 14:30:50,448 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-04 14:30:50,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-04 14:30:50,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-04 14:30:50,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-04 14:30:50,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-04 14:30:50,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-04 14:30:50,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-04 14:30:50,451 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-04 14:30:50,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-04 14:30:50,452 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-04 14:30:50,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-04 14:30:50,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-04 14:30:50,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-04 14:30:50,453 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-04 14:30:50,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-04 14:30:50,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-04 14:30:50,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-04 14:30:50,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-04 14:30:50,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-04 14:30:50,454 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-04 14:30:50,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-04 14:30:50,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-04 14:30:50,455 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 [2019-10-04 14:30:50,503 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-04 14:30:50,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-04 14:30:50,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-04 14:30:50,526 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-04 14:30:50,527 INFO L275 PluginConnector]: CDTParser initialized [2019-10-04 14:30:50,527 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-10-04 14:30:50,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba85ea87/b34659ca16af4a299b452b405f645b46/FLAG93d6c534d [2019-10-04 14:30:51,078 INFO L306 CDTParser]: Found 1 translation units. [2019-10-04 14:30:51,081 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-10-04 14:30:51,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba85ea87/b34659ca16af4a299b452b405f645b46/FLAG93d6c534d [2019-10-04 14:30:51,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba85ea87/b34659ca16af4a299b452b405f645b46 [2019-10-04 14:30:51,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-04 14:30:51,450 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-04 14:30:51,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-04 14:30:51,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-04 14:30:51,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-04 14:30:51,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 02:30:51" (1/1) ... [2019-10-04 14:30:51,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a8a69ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 02:30:51, skipping insertion in model container [2019-10-04 14:30:51,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 02:30:51" (1/1) ... [2019-10-04 14:30:51,466 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-04 14:30:51,501 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-04 14:30:51,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-04 14:30:51,808 INFO L188 MainTranslator]: Completed pre-run [2019-10-04 14:30:51,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-04 14:30:51,883 INFO L192 MainTranslator]: Completed translation [2019-10-04 14:30:51,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 02:30:51 WrapperNode [2019-10-04 14:30:51,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-04 14:30:51,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-04 14:30:51,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-04 14:30:51,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-04 14:30:51,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 02:30:51" (1/1) ... [2019-10-04 14:30:51,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 02:30:51" (1/1) ... [2019-10-04 14:30:51,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 02:30:51" (1/1) ... [2019-10-04 14:30:51,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 02:30:51" (1/1) ... [2019-10-04 14:30:51,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 02:30:51" (1/1) ... [2019-10-04 14:30:51,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 02:30:51" (1/1) ... [2019-10-04 14:30:51,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 02:30:51" (1/1) ... [2019-10-04 14:30:51,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-04 14:30:51,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-04 14:30:51,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-04 14:30:51,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-04 14:30:51,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 02:30:51" (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 [2019-10-04 14:30:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-04 14:30:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-04 14:30:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-10-04 14:30:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-10-04 14:30:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-10-04 14:30:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-10-04 14:30:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-10-04 14:30:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-10-04 14:30:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-10-04 14:30:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-10-04 14:30:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-10-04 14:30:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-10-04 14:30:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-10-04 14:30:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-10-04 14:30:52,007 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-10-04 14:30:52,007 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-10-04 14:30:52,007 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-10-04 14:30:52,007 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-10-04 14:30:52,007 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-10-04 14:30:52,007 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-10-04 14:30:52,008 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-10-04 14:30:52,008 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-04 14:30:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-04 14:30:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-04 14:30:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-10-04 14:30:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-10-04 14:30:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-10-04 14:30:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-10-04 14:30:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-10-04 14:30:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-10-04 14:30:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-10-04 14:30:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-10-04 14:30:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-10-04 14:30:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-10-04 14:30:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-10-04 14:30:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-10-04 14:30:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-10-04 14:30:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-10-04 14:30:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-10-04 14:30:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-10-04 14:30:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-10-04 14:30:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-10-04 14:30:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-10-04 14:30:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-04 14:30:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-04 14:30:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-04 14:30:52,555 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; [2019-10-04 14:30:52,556 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2019-10-04 14:30:52,822 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-04 14:30:52,822 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-04 14:30:52,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:30:52 BoogieIcfgContainer [2019-10-04 14:30:52,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-04 14:30:52,824 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-10-04 14:30:52,824 INFO L271 PluginConnector]: Initializing Sifa... [2019-10-04 14:30:52,825 INFO L275 PluginConnector]: Sifa initialized [2019-10-04 14:30:52,826 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:30:52" (1/1) ... [2019-10-04 14:30:52,827 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=CompoundDomain ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-10-04 14:30:52,867 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-10-04 14:30:52,868 INFO L169 IcfgInterpreter]: Building call graph [2019-10-04 14:30:52,883 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-04 14:30:52,892 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-04 14:30:52,894 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-04 14:30:53,245 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 98 for LOIs [2019-10-04 14:30:53,355 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 96 for LOIs [2019-10-04 14:30:54,917 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-10-04 14:30:55,437 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 49 for LOIs [2019-10-04 14:30:55,731 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 46 for LOIs [2019-10-04 14:30:55,752 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 29 for LOIs [2019-10-04 14:30:55,758 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-04 14:30:55,758 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-04 14:30:55,760 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 969#(and (<= ~p_dw_i~0 1) (= ~q_free~0 1) (<= ~t~0 2) (<= 1 ~p_dw_i~0) (= ~c_dr_pc~0 2) (= ~c_dr_st~0 1) (= ~c_dr_i~0 1) (<= 2 ~c_dr_pc~0) (<= 1 ~q_free~0) (<= 1 ~c_dr_i~0) (<= ~c_dr_i~0 1) (<= 1 ~c_dr_st~0) (<= 1 ~q_req_up~0) (<= ~q_free~0 1) (<= ~c_dr_pc~0 2) (<= ~q_req_up~0 1) (= ~q_req_up~0 1) (= ~p_dw_i~0 1) (<= ~c_dr_st~0 1)) [2019-10-04 14:30:55,773 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-10-04 14:30:55,773 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-10-04 14:30:55,775 INFO L168 Benchmark]: Toolchain (without parser) took 4324.81 ms. Allocated memory was 140.5 MB in the beginning and 329.3 MB in the end (delta: 188.7 MB). Free memory was 88.0 MB in the beginning and 132.8 MB in the end (delta: -44.8 MB). Peak memory consumption was 144.0 MB. Max. memory is 7.1 GB. [2019-10-04 14:30:55,776 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.5 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-04 14:30:55,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.32 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 87.8 MB in the beginning and 176.0 MB in the end (delta: -88.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-10-04 14:30:55,779 INFO L168 Benchmark]: Boogie Preprocessor took 51.41 ms. Allocated memory is still 200.8 MB. Free memory was 176.0 MB in the beginning and 173.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-10-04 14:30:55,780 INFO L168 Benchmark]: RCFGBuilder took 887.57 ms. Allocated memory is still 200.8 MB. Free memory was 173.6 MB in the beginning and 115.3 MB in the end (delta: 58.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. [2019-10-04 14:30:55,781 INFO L168 Benchmark]: Sifa took 2949.02 ms. Allocated memory was 200.8 MB in the beginning and 329.3 MB in the end (delta: 128.5 MB). Free memory was 115.3 MB in the beginning and 132.8 MB in the end (delta: -17.4 MB). Peak memory consumption was 111.0 MB. Max. memory is 7.1 GB. [2019-10-04 14:30:55,785 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.5 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 433.32 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 87.8 MB in the beginning and 176.0 MB in the end (delta: -88.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.41 ms. Allocated memory is still 200.8 MB. Free memory was 176.0 MB in the beginning and 173.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 887.57 ms. Allocated memory is still 200.8 MB. Free memory was 173.6 MB in the beginning and 115.3 MB in the end (delta: 58.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. * Sifa took 2949.02 ms. Allocated memory was 200.8 MB in the beginning and 329.3 MB in the end (delta: 128.5 MB). Free memory was 115.3 MB in the beginning and 132.8 MB in the end (delta: -17.4 MB). Peak memory consumption was 111.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 2893, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 292, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 206, TOOLS_POST_TIME[ms]: 100, TOOLS_POST_CALL_APPLICATIONS: 71, TOOLS_POST_CALL_TIME[ms]: 344, TOOLS_POST_RETURN_APPLICATIONS: 65, TOOLS_POST_RETURN_TIME[ms]: 136, TOOLS_QUANTIFIERELIM_APPLICATIONS: 342, TOOLS_QUANTIFIERELIM_TIME[ms]: 444, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 25, FLUID_QUERY_TIME[ms]: 14, FLUID_QUERIES: 298, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 103, DOMAIN_JOIN_TIME[ms]: 1897, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 128, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 11, DOMAIN_ISBOTTOM_APPLICATIONS: 76, DOMAIN_ISBOTTOM_TIME[ms]: 108, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 1535, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1534, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 65, CALL_SUMMARIZER_CACHE_MISSES: 20, CALL_SUMMARIZER_OVERALL_TIME[ms]: 1108, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1107, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 8, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 40, DAG_COMPRESSION_PROCESSED_NODES: 411, DAG_COMPRESSION_RETAINED_NODES: 211 - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 969#(and (<= ~p_dw_i~0 1) (= ~q_free~0 1) (<= ~t~0 2) (<= 1 ~p_dw_i~0) (= ~c_dr_pc~0 2) (= ~c_dr_st~0 1) (= ~c_dr_i~0 1) (<= 2 ~c_dr_pc~0) (<= 1 ~q_free~0) (<= 1 ~c_dr_i~0) (<= ~c_dr_i~0 1) (<= 1 ~c_dr_st~0) (<= 1 ~q_req_up~0) (<= ~q_free~0 1) (<= ~c_dr_pc~0 2) (<= ~q_req_up~0 1) (= ~q_req_up~0 1) (= ~p_dw_i~0 1) (<= ~c_dr_st~0 1)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...