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 TopInputCallSummarizer --sifa.fluid NeverFluid --sifa.intern.fluid NeverFluid --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 23:36:53,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 23:36:53,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 23:36:53,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 23:36:53,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 23:36:53,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 23:36:53,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 23:36:53,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 23:36:53,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 23:36:53,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 23:36:53,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 23:36:53,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 23:36:53,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 23:36:53,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 23:36:53,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 23:36:53,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 23:36:53,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 23:36:53,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 23:36:53,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 23:36:53,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 23:36:53,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 23:36:53,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 23:36:53,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 23:36:53,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 23:36:53,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 23:36:53,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 23:36:53,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 23:36:53,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 23:36:53,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 23:36:53,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 23:36:53,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 23:36:53,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 23:36:53,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 23:36:53,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 23:36:53,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 23:36:53,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 23:36:53,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 23:36:53,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 23:36:53,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 23:36:53,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 23:36:53,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 23:36:53,486 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 23:36:53,515 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 23:36:53,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 23:36:53,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 23:36:53,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 23:36:53,518 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 23:36:53,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 23:36:53,519 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 23:36:53,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 23:36:53,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 23:36:53,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 23:36:53,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 23:36:53,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 23:36:53,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 23:36:53,522 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 23:36:53,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 23:36:53,522 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 23:36:53,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 23:36:53,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 23:36:53,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 23:36:53,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 23:36:53,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 23:36:53,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 23:36:53,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 23:36:53,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 23:36:53,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 23:36:53,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 23:36:53,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 23:36:53,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 23:36:53,525 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 -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> NeverFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> NeverFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-20 23:36:53,587 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 23:36:53,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 23:36:53,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 23:36:53,613 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 23:36:53,613 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 23:36:53,614 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-20 23:36:53,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49b3a0802/584400a53b234febb0268eda539cc101/FLAGea4c8e7c8 [2019-09-20 23:36:54,161 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 23:36:54,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-20 23:36:54,171 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49b3a0802/584400a53b234febb0268eda539cc101/FLAGea4c8e7c8 [2019-09-20 23:36:54,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49b3a0802/584400a53b234febb0268eda539cc101 [2019-09-20 23:36:54,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 23:36:54,520 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 23:36:54,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 23:36:54,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 23:36:54,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 23:36:54,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 11:36:54" (1/1) ... [2019-09-20 23:36:54,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb5eaab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:36:54, skipping insertion in model container [2019-09-20 23:36:54,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 11:36:54" (1/1) ... [2019-09-20 23:36:54,537 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 23:36:54,578 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 23:36:54,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 23:36:54,808 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 23:36:54,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 23:36:54,979 INFO L192 MainTranslator]: Completed translation [2019-09-20 23:36:54,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:36:54 WrapperNode [2019-09-20 23:36:54,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 23:36:54,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 23:36:54,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 23:36:54,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 23:36:54,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:36:54" (1/1) ... [2019-09-20 23:36:54,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:36:54" (1/1) ... [2019-09-20 23:36:55,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:36:54" (1/1) ... [2019-09-20 23:36:55,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:36:54" (1/1) ... [2019-09-20 23:36:55,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:36:54" (1/1) ... [2019-09-20 23:36:55,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:36:54" (1/1) ... [2019-09-20 23:36:55,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:36:54" (1/1) ... [2019-09-20 23:36:55,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 23:36:55,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 23:36:55,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 23:36:55,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 23:36:55,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:36:54" (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 23:36:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 23:36:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 23:36:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-20 23:36:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-20 23:36:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-20 23:36:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-20 23:36:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-20 23:36:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-20 23:36:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-20 23:36:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-20 23:36:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-20 23:36:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-20 23:36:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-20 23:36:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-20 23:36:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-09-20 23:36:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-09-20 23:36:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-20 23:36:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-20 23:36:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-20 23:36:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-20 23:36:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-20 23:36:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 23:36:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 23:36:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 23:36:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-20 23:36:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-20 23:36:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-20 23:36:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-20 23:36:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-20 23:36:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-20 23:36:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-20 23:36:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-20 23:36:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-20 23:36:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-20 23:36:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-20 23:36:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-20 23:36:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-09-20 23:36:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-09-20 23:36:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-20 23:36:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-20 23:36:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-20 23:36:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-20 23:36:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-20 23:36:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 23:36:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 23:36:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 23:36:55,672 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 23:36:55,673 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2019-09-20 23:36:55,914 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 23:36:55,914 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 23:36:55,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 11:36:55 BoogieIcfgContainer [2019-09-20 23:36:55,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 23:36:55,916 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 23:36:55,917 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 23:36:55,917 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 23:36:55,918 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 11:36:55" (1/1) ... [2019-09-20 23:36:55,919 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=NeverFluid ♦ 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=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=NeverFluid [2019-09-20 23:36:55,956 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 23:36:55,956 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 23:36:55,972 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 23:36:55,984 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 23:36:55,986 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 23:36:56,210 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 82 for LOIs [2019-09-20 23:36:56,317 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 80 for LOIs [2019-09-20 23:36:59,684 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-20 23:36:59,876 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 23:37:00,488 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2019-09-20 23:37:01,741 WARN L191 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-20 23:37:01,950 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-20 23:37:02,364 WARN L191 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2019-09-20 23:37:02,561 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 23:37:03,155 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2019-09-20 23:37:03,443 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-20 23:37:03,883 WARN L191 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2019-09-20 23:37:04,069 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-09-20 23:37:04,608 WARN L191 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2019-09-20 23:37:04,946 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-20 23:37:05,057 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-09-20 23:37:05,438 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-20 23:37:05,539 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-09-20 23:37:05,888 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2019-09-20 23:37:06,041 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-09-20 23:37:06,047 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 81 for LOIs [2019-09-20 23:37:06,442 WARN L191 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 94 [2019-09-20 23:37:06,609 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-09-20 23:37:07,016 WARN L191 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 94 [2019-09-20 23:37:07,168 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-09-20 23:37:07,659 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 104 [2019-09-20 23:37:07,906 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-09-20 23:37:08,359 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 98 [2019-09-20 23:37:08,861 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 104 [2019-09-20 23:37:09,084 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-09-20 23:37:09,394 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 79 [2019-09-20 23:37:09,529 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-09-20 23:37:09,871 WARN L191 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2019-09-20 23:37:10,044 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 23:37:10,322 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 85 [2019-09-20 23:37:10,439 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 23:37:10,701 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-20 23:37:11,042 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-20 23:37:11,148 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 23:37:11,502 WARN L191 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-20 23:37:11,663 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 23:37:12,019 WARN L191 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2019-09-20 23:37:12,389 WARN L191 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-20 23:37:12,545 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 23:37:12,852 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-20 23:37:13,004 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 23:37:13,355 WARN L191 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2019-09-20 23:37:13,526 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 23:37:13,760 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-20 23:37:13,861 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 23:37:14,225 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2019-09-20 23:37:14,387 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 23:37:14,391 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 51 for LOIs [2019-09-20 23:37:14,521 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 31 for LOIs [2019-09-20 23:37:14,591 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 23:37:14,592 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 23:37:14,594 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 615#(or (and (and (and (not (= ~q_read_ev~0 1)) (not (= ~q_write_ev~0 1))) (= ~c_dr_st~0 1)) (= 1 ~q_req_up~0) (= 1 ~q_free~0) (= ~c_dr_pc~0 2) (= ~c_last_read~0 ~q_buf_0~0) (not (= ~c_last_read~0 ~p_last_write~0))) (and (and (and (not (= ~q_read_ev~0 1)) (not (= ~q_write_ev~0 1))) (= ~c_dr_st~0 1)) (= 1 ~q_req_up~0) (not (= ~c_num_read~0 ~p_num_write~0)) (= 1 ~q_free~0) (= ~c_dr_pc~0 2) (= ~c_last_read~0 ~q_buf_0~0))) [2019-09-20 23:37:14,605 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 23:37:14,606 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 23:37:14,608 INFO L168 Benchmark]: Toolchain (without parser) took 20086.91 ms. Allocated memory was 131.6 MB in the beginning and 486.5 MB in the end (delta: 354.9 MB). Free memory was 87.5 MB in the beginning and 200.1 MB in the end (delta: -112.6 MB). Peak memory consumption was 242.4 MB. Max. memory is 7.1 GB. [2019-09-20 23:37:14,609 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 131.6 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 23:37:14,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.17 ms. Allocated memory was 131.6 MB in the beginning and 197.1 MB in the end (delta: 65.5 MB). Free memory was 87.1 MB in the beginning and 171.4 MB in the end (delta: -84.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2019-09-20 23:37:14,610 INFO L168 Benchmark]: Boogie Preprocessor took 45.34 ms. Allocated memory is still 197.1 MB. Free memory was 171.4 MB in the beginning and 169.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-09-20 23:37:14,613 INFO L168 Benchmark]: RCFGBuilder took 889.71 ms. Allocated memory is still 197.1 MB. Free memory was 168.8 MB in the beginning and 111.2 MB in the end (delta: 57.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. [2019-09-20 23:37:14,614 INFO L168 Benchmark]: Sifa took 18689.40 ms. Allocated memory was 197.1 MB in the beginning and 486.5 MB in the end (delta: 289.4 MB). Free memory was 111.2 MB in the beginning and 200.1 MB in the end (delta: -88.9 MB). Peak memory consumption was 200.6 MB. Max. memory is 7.1 GB. [2019-09-20 23:37:14,621 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 131.6 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 459.17 ms. Allocated memory was 131.6 MB in the beginning and 197.1 MB in the end (delta: 65.5 MB). Free memory was 87.1 MB in the beginning and 171.4 MB in the end (delta: -84.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.34 ms. Allocated memory is still 197.1 MB. Free memory was 171.4 MB in the beginning and 169.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 889.71 ms. Allocated memory is still 197.1 MB. Free memory was 168.8 MB in the beginning and 111.2 MB in the end (delta: 57.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. * Sifa took 18689.40 ms. Allocated memory was 197.1 MB in the beginning and 486.5 MB in the end (delta: 289.4 MB). Free memory was 111.2 MB in the beginning and 200.1 MB in the end (delta: -88.9 MB). Peak memory consumption was 200.6 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]: 18638, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 310, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 214, TOOLS_POST_TIME[ms]: 110, TOOLS_POST_CALL_APPLICATIONS: 81, TOOLS_POST_CALL_TIME[ms]: 247, TOOLS_POST_RETURN_APPLICATIONS: 75, TOOLS_POST_RETURN_TIME[ms]: 121, TOOLS_QUANTIFIERELIM_APPLICATIONS: 370, TOOLS_QUANTIFIERELIM_TIME[ms]: 348, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 20, FLUID_QUERY_TIME[ms]: 0, FLUID_QUERIES: 317, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 105, DOMAIN_JOIN_TIME[ms]: 16174, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 1642, DOMAIN_ISSUBSETEQ_APPLICATIONS: 7, DOMAIN_ISSUBSETEQ_TIME[ms]: 12, DOMAIN_ISBOTTOM_APPLICATIONS: 77, DOMAIN_ISBOTTOM_TIME[ms]: 179, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 14731, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 14730, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 7, CALL_SUMMARIZER_APPLICATIONS: 75, CALL_SUMMARIZER_CACHE_MISSES: 20, CALL_SUMMARIZER_OVERALL_TIME[ms]: 4326, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 4325, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 10, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 41, 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 615#(or (and (and (and (not (= ~q_read_ev~0 1)) (not (= ~q_write_ev~0 1))) (= ~c_dr_st~0 1)) (= 1 ~q_req_up~0) (= 1 ~q_free~0) (= ~c_dr_pc~0 2) (= ~c_last_read~0 ~q_buf_0~0) (not (= ~c_last_read~0 ~p_last_write~0))) (and (and (and (not (= ~q_read_ev~0 1)) (not (= ~q_write_ev~0 1))) (= ~c_dr_st~0 1)) (= 1 ~q_req_up~0) (not (= ~c_num_read~0 ~p_num_write~0)) (= 1 ~q_free~0) (= ~c_dr_pc~0 2) (= ~c_last_read~0 ~q_buf_0~0))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...