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.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-21 10:08:42,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-21 10:08:42,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-21 10:08:42,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-21 10:08:42,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-21 10:08:42,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-21 10:08:42,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-21 10:08:42,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-21 10:08:42,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-21 10:08:42,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-21 10:08:42,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-21 10:08:42,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-21 10:08:42,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-21 10:08:42,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-21 10:08:42,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-21 10:08:42,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-21 10:08:42,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-21 10:08:42,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-21 10:08:42,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-21 10:08:42,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-21 10:08:42,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-21 10:08:42,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-21 10:08:42,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-21 10:08:42,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-21 10:08:42,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-21 10:08:42,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-21 10:08:42,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-21 10:08:42,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-21 10:08:42,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-21 10:08:42,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-21 10:08:42,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-21 10:08:42,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-21 10:08:42,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-21 10:08:42,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-21 10:08:42,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-21 10:08:42,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-21 10:08:42,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-21 10:08:42,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-21 10:08:42,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-21 10:08:42,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-21 10:08:42,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-21 10:08:42,909 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 [2019-09-21 10:08:42,924 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-21 10:08:42,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-21 10:08:42,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-21 10:08:42,926 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-21 10:08:42,926 INFO L138 SettingsManager]: * Use SBE=true [2019-09-21 10:08:42,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-21 10:08:42,927 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-21 10:08:42,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-21 10:08:42,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-21 10:08:42,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-21 10:08:42,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-21 10:08:42,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-21 10:08:42,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-21 10:08:42,928 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-21 10:08:42,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-21 10:08:42,928 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-21 10:08:42,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-21 10:08:42,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-21 10:08:42,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-21 10:08:42,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-21 10:08:42,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-21 10:08:42,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-21 10:08:42,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-21 10:08:42,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-21 10:08:42,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-21 10:08:42,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-21 10:08:42,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-21 10:08:42,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-21 10:08:42,931 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: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-09-21 10:08:42,962 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-21 10:08:42,974 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-21 10:08:42,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-21 10:08:42,980 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-21 10:08:42,980 INFO L275 PluginConnector]: CDTParser initialized [2019-09-21 10:08:42,981 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-21 10:08:43,044 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/768be78cd/9e5a47ccc09c43748a4360f807a95127/FLAG282ca86e4 [2019-09-21 10:08:43,513 INFO L306 CDTParser]: Found 1 translation units. [2019-09-21 10:08:43,514 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-21 10:08:43,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/768be78cd/9e5a47ccc09c43748a4360f807a95127/FLAG282ca86e4 [2019-09-21 10:08:43,905 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/768be78cd/9e5a47ccc09c43748a4360f807a95127 [2019-09-21 10:08:43,916 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-21 10:08:43,918 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-21 10:08:43,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-21 10:08:43,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-21 10:08:43,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-21 10:08:43,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:08:43" (1/1) ... [2019-09-21 10:08:43,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1adbfbad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:43, skipping insertion in model container [2019-09-21 10:08:43,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:08:43" (1/1) ... [2019-09-21 10:08:43,937 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-21 10:08:43,982 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-21 10:08:44,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 10:08:44,343 INFO L188 MainTranslator]: Completed pre-run [2019-09-21 10:08:44,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 10:08:44,548 INFO L192 MainTranslator]: Completed translation [2019-09-21 10:08:44,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:44 WrapperNode [2019-09-21 10:08:44,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-21 10:08:44,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-21 10:08:44,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-21 10:08:44,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-21 10:08:44,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:44" (1/1) ... [2019-09-21 10:08:44,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:44" (1/1) ... [2019-09-21 10:08:44,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:44" (1/1) ... [2019-09-21 10:08:44,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:44" (1/1) ... [2019-09-21 10:08:44,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:44" (1/1) ... [2019-09-21 10:08:44,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:44" (1/1) ... [2019-09-21 10:08:44,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:44" (1/1) ... [2019-09-21 10:08:44,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-21 10:08:44,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-21 10:08:44,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-21 10:08:44,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-21 10:08:44,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:44" (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 [2019-09-21 10:08:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-21 10:08:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-21 10:08:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-21 10:08:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-21 10:08:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-21 10:08:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-21 10:08:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-21 10:08:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-21 10:08:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-21 10:08:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-21 10:08:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-21 10:08:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-21 10:08:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-21 10:08:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-21 10:08:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-09-21 10:08:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-09-21 10:08:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-21 10:08:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-21 10:08:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-21 10:08:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-21 10:08:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-21 10:08:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-21 10:08:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-21 10:08:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-21 10:08:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-21 10:08:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-21 10:08:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-21 10:08:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-21 10:08:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-21 10:08:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-21 10:08:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-21 10:08:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-21 10:08:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-21 10:08:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-21 10:08:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-21 10:08:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-21 10:08:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-09-21 10:08:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-09-21 10:08:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-21 10:08:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-21 10:08:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-21 10:08:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-21 10:08:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-21 10:08:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-21 10:08:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-21 10:08:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-21 10:08:45,190 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; [2019-09-21 10:08:45,190 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2019-09-21 10:08:45,482 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-21 10:08:45,483 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-21 10:08:45,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:08:45 BoogieIcfgContainer [2019-09-21 10:08:45,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-21 10:08:45,485 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-21 10:08:45,485 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-21 10:08:45,486 INFO L275 PluginConnector]: Sifa initialized [2019-09-21 10:08:45,487 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:08:45" (1/1) ... [2019-09-21 10:08:45,487 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=CompoundDomain ♦ 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=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_QUICK ♦ Intern Fluid=SizeLimitFluid [2019-09-21 10:08:45,518 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-21 10:08:45,522 INFO L169 IcfgInterpreter]: Building call graph [2019-09-21 10:08:45,535 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-21 10:08:45,548 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-21 10:08:45,549 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-21 10:08:45,857 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-09-21 10:08:45,906 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 98 for LOIs [2019-09-21 10:08:45,988 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 96 for LOIs [2019-09-21 10:08:49,131 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-21 10:08:50,661 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-21 10:08:53,305 WARN L191 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 86 [2019-09-21 10:08:53,347 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-21 10:08:53,359 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-21 10:08:53,921 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-21 10:08:55,694 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-21 10:08:58,291 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 89 [2019-09-21 10:08:58,671 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 162 [2019-09-21 10:08:59,706 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 106 [2019-09-21 10:09:01,084 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-21 10:09:01,206 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2019-09-21 10:09:01,379 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 96 for LOIs [2019-09-21 10:09:03,295 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 215 [2019-09-21 10:09:03,839 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 104 for LOIs [2019-09-21 10:09:03,898 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 79 for LOIs [2019-09-21 10:09:03,919 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-21 10:09:03,920 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-21 10:09:03,922 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 7357#(and (<= ~p_dw_i~0 1) (<= ~t~0 2) (<= 1 ~p_dw_i~0) (<= 2 ~c_dr_pc~0) (<= 1 ~q_free~0) (<= 1 ~c_dr_i~0) (<= ~c_dr_i~0 1) (or (and (not (= ~c_num_read~0 ~p_num_write~0)) (= ~c_dr_pc~0 2) (= 1 ~q_req_up~0) (not (= ~c_dr_pc~0 0)) (or (and (or (or (or (and (<= ~p_dw_pc~0 1) (or (and (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (and (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0))) (<= 2 ~p_dw_st~0) (<= 1 ~p_dw_pc~0)) (and (or (and (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (and (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0))) (<= 2 ~p_dw_st~0) (<= ~p_dw_pc~0 2) (<= 2 ~p_dw_pc~0))) (<= ~p_dw_st~0 0)) (or (and (<= ~p_dw_pc~0 1) (or (and (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (and (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0))) (<= 2 ~p_dw_st~0) (<= 1 ~p_dw_pc~0)) (and (or (and (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (and (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0))) (<= 2 ~p_dw_st~0) (<= ~p_dw_pc~0 2) (<= 2 ~p_dw_pc~0)))) (<= ~p_dw_st~0 2) (<= 0 ~p_dw_st~0) (= ~c_dr_st~0 1)) (and (not (= 0 ~p_dw_st~0)) (= ~c_dr_st~0 1))) (= ~c_last_read~0 ~p_last_write~0) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (and (= ~c_dr_pc~0 2) (or (and (<= ~p_dw_st~0 2) (or (or (and (or (and (<= 2 ~p_dw_st~0) (<= ~p_dw_pc~0 2) (<= 2 ~p_dw_pc~0)) (and (<= ~p_dw_pc~0 1) (<= 2 ~p_dw_st~0) (<= 1 ~p_dw_pc~0))) (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0)) (and (or (and (<= 2 ~p_dw_st~0) (<= ~p_dw_pc~0 2) (<= 2 ~p_dw_pc~0)) (and (<= ~p_dw_pc~0 1) (<= 2 ~p_dw_st~0) (<= 1 ~p_dw_pc~0))) (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0))) (or (or (and (or (and (<= 2 ~p_dw_st~0) (<= ~p_dw_pc~0 2) (<= 2 ~p_dw_pc~0)) (and (<= ~p_dw_pc~0 1) (<= 2 ~p_dw_st~0) (<= 1 ~p_dw_pc~0))) (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0)) (and (or (and (<= 2 ~p_dw_st~0) (<= ~p_dw_pc~0 2) (<= 2 ~p_dw_pc~0)) (and (<= ~p_dw_pc~0 1) (<= 2 ~p_dw_st~0) (<= 1 ~p_dw_pc~0))) (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0))) (<= ~p_dw_st~0 0))) (<= 0 ~p_dw_st~0) (= ~c_dr_st~0 1)) (and (not (= 0 ~p_dw_st~0)) (= ~c_dr_st~0 1))) (= 1 ~q_req_up~0) (not (= ~c_dr_pc~0 0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (not (= ~c_last_read~0 ~p_last_write~0)))) (<= 1 ~c_dr_st~0) (<= 1 ~q_req_up~0) (<= ~q_free~0 1) (<= ~c_dr_pc~0 2) (<= ~q_req_up~0 1) (<= ~c_dr_st~0 1)) [2019-09-21 10:09:03,935 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-21 10:09:03,935 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-21 10:09:03,937 INFO L168 Benchmark]: Toolchain (without parser) took 20019.83 ms. Allocated memory was 140.5 MB in the beginning and 896.5 MB in the end (delta: 756.0 MB). Free memory was 88.0 MB in the beginning and 742.8 MB in the end (delta: -654.8 MB). Peak memory consumption was 101.3 MB. Max. memory is 7.1 GB. [2019-09-21 10:09:03,938 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. [2019-09-21 10:09:03,939 INFO L168 Benchmark]: CACSL2BoogieTranslator took 630.47 ms. Allocated memory was 140.5 MB in the beginning and 201.3 MB in the end (delta: 60.8 MB). Free memory was 87.8 MB in the beginning and 176.4 MB in the end (delta: -88.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-09-21 10:09:03,940 INFO L168 Benchmark]: Boogie Preprocessor took 46.99 ms. Allocated memory is still 201.3 MB. Free memory was 176.4 MB in the beginning and 173.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-09-21 10:09:03,941 INFO L168 Benchmark]: RCFGBuilder took 887.56 ms. Allocated memory is still 201.3 MB. Free memory was 173.9 MB in the beginning and 116.3 MB in the end (delta: 57.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. [2019-09-21 10:09:03,942 INFO L168 Benchmark]: Sifa took 18450.48 ms. Allocated memory was 201.3 MB in the beginning and 896.5 MB in the end (delta: 695.2 MB). Free memory was 116.3 MB in the beginning and 742.8 MB in the end (delta: -626.5 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. [2019-09-21 10:09:03,946 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 630.47 ms. Allocated memory was 140.5 MB in the beginning and 201.3 MB in the end (delta: 60.8 MB). Free memory was 87.8 MB in the beginning and 176.4 MB in the end (delta: -88.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.99 ms. Allocated memory is still 201.3 MB. Free memory was 176.4 MB in the beginning and 173.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 887.56 ms. Allocated memory is still 201.3 MB. Free memory was 173.9 MB in the beginning and 116.3 MB in the end (delta: 57.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. * Sifa took 18450.48 ms. Allocated memory was 201.3 MB in the beginning and 896.5 MB in the end (delta: 695.2 MB). Free memory was 116.3 MB in the beginning and 742.8 MB in the end (delta: -626.5 MB). Peak memory consumption was 68.7 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]: 18403, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 328, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 222, TOOLS_POST_TIME[ms]: 203, TOOLS_POST_CALL_APPLICATIONS: 91, TOOLS_POST_CALL_TIME[ms]: 508, TOOLS_POST_RETURN_APPLICATIONS: 85, TOOLS_POST_RETURN_TIME[ms]: 284, TOOLS_QUANTIFIERELIM_APPLICATIONS: 398, TOOLS_QUANTIFIERELIM_TIME[ms]: 821, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 26, FLUID_QUERY_TIME[ms]: 14, FLUID_QUERIES: 336, FLUID_YES_ANSWERS: 19, DOMAIN_JOIN_APPLICATIONS: 107, DOMAIN_JOIN_TIME[ms]: 5177, DOMAIN_ALPHA_APPLICATIONS: 19, DOMAIN_ALPHA_TIME[ms]: 11421, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 440, DOMAIN_ISSUBSETEQ_APPLICATIONS: 8, DOMAIN_ISSUBSETEQ_TIME[ms]: 34, DOMAIN_ISBOTTOM_APPLICATIONS: 78, DOMAIN_ISBOTTOM_TIME[ms]: 156, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 14892, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 14891, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 8, CALL_SUMMARIZER_APPLICATIONS: 85, CALL_SUMMARIZER_CACHE_MISSES: 20, CALL_SUMMARIZER_OVERALL_TIME[ms]: 1518, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1517, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 8, REGEX_TO_DAG_TIME[ms]: 6, DAG_COMPRESSION_TIME[ms]: 38, 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 7357#(and (<= ~p_dw_i~0 1) (<= ~t~0 2) (<= 1 ~p_dw_i~0) (<= 2 ~c_dr_pc~0) (<= 1 ~q_free~0) (<= 1 ~c_dr_i~0) (<= ~c_dr_i~0 1) (or (and (not (= ~c_num_read~0 ~p_num_write~0)) (= ~c_dr_pc~0 2) (= 1 ~q_req_up~0) (not (= ~c_dr_pc~0 0)) (or (and (or (or (or (and (<= ~p_dw_pc~0 1) (or (and (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (and (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0))) (<= 2 ~p_dw_st~0) (<= 1 ~p_dw_pc~0)) (and (or (and (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (and (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0))) (<= 2 ~p_dw_st~0) (<= ~p_dw_pc~0 2) (<= 2 ~p_dw_pc~0))) (<= ~p_dw_st~0 0)) (or (and (<= ~p_dw_pc~0 1) (or (and (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (and (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0))) (<= 2 ~p_dw_st~0) (<= 1 ~p_dw_pc~0)) (and (or (and (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (and (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0))) (<= 2 ~p_dw_st~0) (<= ~p_dw_pc~0 2) (<= 2 ~p_dw_pc~0)))) (<= ~p_dw_st~0 2) (<= 0 ~p_dw_st~0) (= ~c_dr_st~0 1)) (and (not (= 0 ~p_dw_st~0)) (= ~c_dr_st~0 1))) (= ~c_last_read~0 ~p_last_write~0) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (and (= ~c_dr_pc~0 2) (or (and (<= ~p_dw_st~0 2) (or (or (and (or (and (<= 2 ~p_dw_st~0) (<= ~p_dw_pc~0 2) (<= 2 ~p_dw_pc~0)) (and (<= ~p_dw_pc~0 1) (<= 2 ~p_dw_st~0) (<= 1 ~p_dw_pc~0))) (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0)) (and (or (and (<= 2 ~p_dw_st~0) (<= ~p_dw_pc~0 2) (<= 2 ~p_dw_pc~0)) (and (<= ~p_dw_pc~0 1) (<= 2 ~p_dw_st~0) (<= 1 ~p_dw_pc~0))) (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0))) (or (or (and (or (and (<= 2 ~p_dw_st~0) (<= ~p_dw_pc~0 2) (<= 2 ~p_dw_pc~0)) (and (<= ~p_dw_pc~0 1) (<= 2 ~p_dw_st~0) (<= 1 ~p_dw_pc~0))) (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0)) (and (or (and (<= 2 ~p_dw_st~0) (<= ~p_dw_pc~0 2) (<= 2 ~p_dw_pc~0)) (and (<= ~p_dw_pc~0 1) (<= 2 ~p_dw_st~0) (<= 1 ~p_dw_pc~0))) (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0))) (<= ~p_dw_st~0 0))) (<= 0 ~p_dw_st~0) (= ~c_dr_st~0 1)) (and (not (= 0 ~p_dw_st~0)) (= ~c_dr_st~0 1))) (= 1 ~q_req_up~0) (not (= ~c_dr_pc~0 0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (not (= ~c_last_read~0 ~p_last_write~0)))) (<= 1 ~c_dr_st~0) (<= 1 ~q_req_up~0) (<= ~q_free~0 1) (<= ~c_dr_pc~0 2) (<= ~q_req_up~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...