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 SizeLimitFluid --sifa.logsizewrapperfluid.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK --sifa.max.parallel.explicit.values 2 --sifa.sizelimitfluid.max.disjunctions 4 -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-ba7495b [2019-09-25 17:12:16,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-25 17:12:16,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-25 17:12:16,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-25 17:12:16,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-25 17:12:16,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-25 17:12:16,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-25 17:12:16,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-25 17:12:16,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-25 17:12:16,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-25 17:12:16,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-25 17:12:16,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-25 17:12:16,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-25 17:12:16,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-25 17:12:16,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-25 17:12:16,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-25 17:12:16,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-25 17:12:16,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-25 17:12:16,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-25 17:12:16,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-25 17:12:16,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-25 17:12:16,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-25 17:12:16,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-25 17:12:16,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-25 17:12:16,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-25 17:12:16,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-25 17:12:16,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-25 17:12:16,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-25 17:12:16,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-25 17:12:16,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-25 17:12:16,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-25 17:12:16,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-25 17:12:16,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-25 17:12:16,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-25 17:12:16,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-25 17:12:16,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-25 17:12:16,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-25 17:12:16,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-25 17:12:16,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-25 17:12:16,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-25 17:12:16,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-25 17:12:16,860 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 [2019-09-25 17:12:16,873 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-25 17:12:16,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-25 17:12:16,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-25 17:12:16,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-25 17:12:16,875 INFO L138 SettingsManager]: * Use SBE=true [2019-09-25 17:12:16,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-25 17:12:16,876 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-25 17:12:16,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-25 17:12:16,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-25 17:12:16,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-25 17:12:16,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-25 17:12:16,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-25 17:12:16,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-25 17:12:16,877 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-25 17:12:16,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-25 17:12:16,877 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-25 17:12:16,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-25 17:12:16,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-25 17:12:16,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-25 17:12:16,878 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-25 17:12:16,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-25 17:12:16,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-25 17:12:16,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-25 17:12:16,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-25 17:12:16,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-25 17:12:16,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-25 17:12:16,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-25 17:12:16,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-25 17:12:16,880 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 -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: LogSizeWrapperFluid Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Max. Parallel Explicit Values -> 2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: SizeLimitFluid Max. Disjunctions -> 4 [2019-09-25 17:12:16,914 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-25 17:12:16,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-25 17:12:16,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-25 17:12:16,930 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-25 17:12:16,931 INFO L275 PluginConnector]: CDTParser initialized [2019-09-25 17:12:16,931 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-25 17:12:16,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f733345ca/a71e3fdd2b904d0fb9b361d037c685dd/FLAG68442c780 [2019-09-25 17:12:17,433 INFO L306 CDTParser]: Found 1 translation units. [2019-09-25 17:12:17,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-25 17:12:17,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f733345ca/a71e3fdd2b904d0fb9b361d037c685dd/FLAG68442c780 [2019-09-25 17:12:17,469 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f733345ca/a71e3fdd2b904d0fb9b361d037c685dd [2019-09-25 17:12:17,482 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-25 17:12:17,486 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-25 17:12:17,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-25 17:12:17,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-25 17:12:17,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-25 17:12:17,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:12:17" (1/1) ... [2019-09-25 17:12:17,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58892507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:17, skipping insertion in model container [2019-09-25 17:12:17,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:12:17" (1/1) ... [2019-09-25 17:12:17,505 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-25 17:12:17,565 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-25 17:12:17,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-25 17:12:17,999 INFO L188 MainTranslator]: Completed pre-run [2019-09-25 17:12:18,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-25 17:12:18,098 INFO L192 MainTranslator]: Completed translation [2019-09-25 17:12:18,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18 WrapperNode [2019-09-25 17:12:18,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-25 17:12:18,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-25 17:12:18,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-25 17:12:18,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-25 17:12:18,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (1/1) ... [2019-09-25 17:12:18,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (1/1) ... [2019-09-25 17:12:18,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (1/1) ... [2019-09-25 17:12:18,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (1/1) ... [2019-09-25 17:12:18,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (1/1) ... [2019-09-25 17:12:18,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (1/1) ... [2019-09-25 17:12:18,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (1/1) ... [2019-09-25 17:12:18,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-25 17:12:18,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-25 17:12:18,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-25 17:12:18,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-25 17:12:18,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (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 [2019-09-25 17:12:18,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-25 17:12:18,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-25 17:12:18,240 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-25 17:12:18,240 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-25 17:12:18,241 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-25 17:12:18,241 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-25 17:12:18,242 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-25 17:12:18,242 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-25 17:12:18,242 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-25 17:12:18,242 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-25 17:12:18,243 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-25 17:12:18,243 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-25 17:12:18,243 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-25 17:12:18,244 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-25 17:12:18,244 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-09-25 17:12:18,244 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-09-25 17:12:18,246 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-25 17:12:18,246 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-25 17:12:18,247 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-25 17:12:18,247 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-25 17:12:18,247 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-25 17:12:18,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-25 17:12:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-25 17:12:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-25 17:12:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-25 17:12:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-25 17:12:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-25 17:12:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-25 17:12:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-25 17:12:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-25 17:12:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-25 17:12:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-25 17:12:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-25 17:12:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-25 17:12:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-25 17:12:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-25 17:12:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-09-25 17:12:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-09-25 17:12:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-25 17:12:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-25 17:12:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-25 17:12:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-25 17:12:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-25 17:12:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-25 17:12:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-25 17:12:18,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-25 17:12:18,781 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; [2019-09-25 17:12:18,781 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2019-09-25 17:12:19,055 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-25 17:12:19,056 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-25 17:12:19,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:12:19 BoogieIcfgContainer [2019-09-25 17:12:19,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-25 17:12:19,058 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-25 17:12:19,058 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-25 17:12:19,058 INFO L275 PluginConnector]: Sifa initialized [2019-09-25 17:12:19,059 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:12:19" (1/1) ... [2019-09-25 17:12:19,060 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=ExplicitValueDomain ♦ 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=4 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-09-25 17:12:19,081 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-25 17:12:19,081 INFO L169 IcfgInterpreter]: Building call graph [2019-09-25 17:12:19,090 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-25 17:12:19,099 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-25 17:12:19,100 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-25 17:12:19,251 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 82 for LOIs [2019-09-25 17:12:19,301 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 80 for LOIs [2019-09-25 17:12:20,220 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 37 for LOIs [2019-09-25 17:12:20,351 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 24 for LOIs [2019-09-25 17:12:20,362 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 26 for LOIs [2019-09-25 17:12:20,366 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-25 17:12:20,366 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-25 17:12:20,380 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 728#(or (and (= 1 ~q_req_up~0) (not (= ~c_dr_pc~0 0)) (= 1 ~q_free~0) (= ~c_dr_pc~0 2) (= ~c_last_read~0 ~q_buf_0~0) (= ~c_dr_st~0 1) (not (= ~c_last_read~0 ~p_last_write~0))) (and (= 1 ~q_req_up~0) (not (= ~c_dr_pc~0 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) (= ~c_dr_st~0 1))) [2019-09-25 17:12:20,398 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-25 17:12:20,398 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-25 17:12:20,402 INFO L168 Benchmark]: Toolchain (without parser) took 2916.75 ms. Allocated memory was 138.9 MB in the beginning and 223.9 MB in the end (delta: 84.9 MB). Free memory was 86.1 MB in the beginning and 88.3 MB in the end (delta: -2.2 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2019-09-25 17:12:20,404 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-25 17:12:20,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.70 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 85.7 MB in the beginning and 175.8 MB in the end (delta: -90.2 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-09-25 17:12:20,407 INFO L168 Benchmark]: Boogie Preprocessor took 68.35 ms. Allocated memory is still 201.9 MB. Free memory was 175.8 MB in the beginning and 173.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-09-25 17:12:20,409 INFO L168 Benchmark]: RCFGBuilder took 886.02 ms. Allocated memory is still 201.9 MB. Free memory was 173.9 MB in the beginning and 115.7 MB in the end (delta: 58.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. [2019-09-25 17:12:20,414 INFO L168 Benchmark]: Sifa took 1341.21 ms. Allocated memory was 201.9 MB in the beginning and 223.9 MB in the end (delta: 22.0 MB). Free memory was 115.7 MB in the beginning and 88.3 MB in the end (delta: 27.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. [2019-09-25 17:12:20,423 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 611.70 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 85.7 MB in the beginning and 175.8 MB in the end (delta: -90.2 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.35 ms. Allocated memory is still 201.9 MB. Free memory was 175.8 MB in the beginning and 173.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 886.02 ms. Allocated memory is still 201.9 MB. Free memory was 173.9 MB in the beginning and 115.7 MB in the end (delta: 58.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. * Sifa took 1341.21 ms. Allocated memory was 201.9 MB in the beginning and 223.9 MB in the end (delta: 22.0 MB). Free memory was 115.7 MB in the beginning and 88.3 MB in the end (delta: 27.4 MB). Peak memory consumption was 49.4 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]: 1302, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 310, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 214, TOOLS_POST_TIME[ms]: 80, TOOLS_POST_CALL_APPLICATIONS: 81, TOOLS_POST_CALL_TIME[ms]: 205, TOOLS_POST_RETURN_APPLICATIONS: 75, TOOLS_POST_RETURN_TIME[ms]: 95, TOOLS_QUANTIFIERELIM_APPLICATIONS: 370, TOOLS_QUANTIFIERELIM_TIME[ms]: 256, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 15, FLUID_QUERY_TIME[ms]: 13, FLUID_QUERIES: 317, FLUID_YES_ANSWERS: 3, DOMAIN_JOIN_APPLICATIONS: 105, DOMAIN_JOIN_TIME[ms]: 559, DOMAIN_ALPHA_APPLICATIONS: 3, DOMAIN_ALPHA_TIME[ms]: 7, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 31, DOMAIN_ISSUBSETEQ_APPLICATIONS: 7, DOMAIN_ISSUBSETEQ_TIME[ms]: 11, DOMAIN_ISBOTTOM_APPLICATIONS: 77, DOMAIN_ISBOTTOM_TIME[ms]: 124, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 577, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 576, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 7, CALL_SUMMARIZER_APPLICATIONS: 75, CALL_SUMMARIZER_CACHE_MISSES: 20, CALL_SUMMARIZER_OVERALL_TIME[ms]: 698, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 697, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 58, 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 728#(or (and (= 1 ~q_req_up~0) (not (= ~c_dr_pc~0 0)) (= 1 ~q_free~0) (= ~c_dr_pc~0 2) (= ~c_last_read~0 ~q_buf_0~0) (= ~c_dr_st~0 1) (not (= ~c_last_read~0 ~p_last_write~0))) (and (= 1 ~q_req_up~0) (not (= ~c_dr_pc~0 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) (= ~c_dr_st~0 1))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...