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 SingleStatement --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-18 15:05:44,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-18 15:05:44,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-18 15:05:44,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-18 15:05:44,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-18 15:05:44,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-18 15:05:44,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-18 15:05:44,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-18 15:05:44,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-18 15:05:44,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-18 15:05:44,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-18 15:05:44,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-18 15:05:44,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-18 15:05:44,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-18 15:05:44,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-18 15:05:44,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-18 15:05:44,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-18 15:05:44,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-18 15:05:44,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-18 15:05:44,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-18 15:05:44,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-18 15:05:44,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-18 15:05:44,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-18 15:05:44,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-18 15:05:44,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-18 15:05:44,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-18 15:05:44,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-18 15:05:44,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-18 15:05:44,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-18 15:05:44,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-18 15:05:44,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-18 15:05:44,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-18 15:05:44,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-18 15:05:44,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-18 15:05:44,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-18 15:05:44,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-18 15:05:44,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-18 15:05:44,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-18 15:05:44,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-18 15:05:44,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-18 15:05:44,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-18 15:05:44,789 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 [2019-09-18 15:05:44,812 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-18 15:05:44,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-18 15:05:44,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-18 15:05:44,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-18 15:05:44,814 INFO L138 SettingsManager]: * Use SBE=true [2019-09-18 15:05:44,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-18 15:05:44,815 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-18 15:05:44,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-18 15:05:44,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-18 15:05:44,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-18 15:05:44,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-18 15:05:44,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-18 15:05:44,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-18 15:05:44,817 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-18 15:05:44,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-18 15:05:44,817 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-18 15:05:44,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-18 15:05:44,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-18 15:05:44,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-18 15:05:44,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-18 15:05:44,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-18 15:05:44,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-18 15:05:44,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-18 15:05:44,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-18 15:05:44,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-18 15:05:44,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-18 15:05:44,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-18 15:05:44,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-18 15:05:44,820 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 -> SingleStatement 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_DDA [2019-09-18 15:05:44,871 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-18 15:05:44,883 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-18 15:05:44,887 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-18 15:05:44,888 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-18 15:05:44,889 INFO L275 PluginConnector]: CDTParser initialized [2019-09-18 15:05:44,889 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-18 15:05:44,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ded7026c6/bf8c1f65e9f5493eaf536a9284349f2a/FLAG99dfc0af0 [2019-09-18 15:05:45,484 INFO L306 CDTParser]: Found 1 translation units. [2019-09-18 15:05:45,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-18 15:05:45,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ded7026c6/bf8c1f65e9f5493eaf536a9284349f2a/FLAG99dfc0af0 [2019-09-18 15:05:45,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ded7026c6/bf8c1f65e9f5493eaf536a9284349f2a [2019-09-18 15:05:45,771 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-18 15:05:45,772 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-18 15:05:45,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-18 15:05:45,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-18 15:05:45,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-18 15:05:45,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 03:05:45" (1/1) ... [2019-09-18 15:05:45,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15caaebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:05:45, skipping insertion in model container [2019-09-18 15:05:45,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 03:05:45" (1/1) ... [2019-09-18 15:05:45,788 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-18 15:05:45,827 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-18 15:05:46,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 15:05:46,042 INFO L188 MainTranslator]: Completed pre-run [2019-09-18 15:05:46,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 15:05:46,189 INFO L192 MainTranslator]: Completed translation [2019-09-18 15:05:46,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:05:46 WrapperNode [2019-09-18 15:05:46,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-18 15:05:46,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-18 15:05:46,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-18 15:05:46,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-18 15:05:46,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:05:46" (1/1) ... [2019-09-18 15:05:46,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:05:46" (1/1) ... [2019-09-18 15:05:46,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:05:46" (1/1) ... [2019-09-18 15:05:46,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:05:46" (1/1) ... [2019-09-18 15:05:46,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:05:46" (1/1) ... [2019-09-18 15:05:46,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:05:46" (1/1) ... [2019-09-18 15:05:46,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:05:46" (1/1) ... [2019-09-18 15:05:46,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-18 15:05:46,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-18 15:05:46,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-18 15:05:46,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-18 15:05:46,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:05:46" (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 [2019-09-18 15:05:46,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-18 15:05:46,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-18 15:05:46,296 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-18 15:05:46,297 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-18 15:05:46,297 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-18 15:05:46,297 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-18 15:05:46,297 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-18 15:05:46,297 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-18 15:05:46,297 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-18 15:05:46,298 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-18 15:05:46,298 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-18 15:05:46,298 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-18 15:05:46,298 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-18 15:05:46,298 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-18 15:05:46,299 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-09-18 15:05:46,299 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-09-18 15:05:46,299 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-18 15:05:46,299 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-18 15:05:46,299 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-18 15:05:46,299 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-18 15:05:46,300 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-18 15:05:46,300 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-18 15:05:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-18 15:05:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-18 15:05:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-18 15:05:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-18 15:05:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-18 15:05:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-18 15:05:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-18 15:05:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-18 15:05:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-18 15:05:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-18 15:05:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-18 15:05:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-18 15:05:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-18 15:05:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-18 15:05:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-09-18 15:05:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-09-18 15:05:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-18 15:05:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-18 15:05:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-18 15:05:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-18 15:05:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-18 15:05:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-18 15:05:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-18 15:05:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-18 15:05:46,911 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint L209: ~c_dr_st~0 := 2; [2019-09-18 15:05:46,912 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint L210: ~c_dr_pc~0 := 2; [2019-09-18 15:05:46,912 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint L211: ~a_t~0 := ~a~0; [2019-09-18 15:05:46,912 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume 1 == ~q_free~0; [2019-09-18 15:05:46,913 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2019-09-18 15:05:46,930 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-18 15:05:46,930 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-18 15:05:46,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 03:05:46 BoogieIcfgContainer [2019-09-18 15:05:46,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-18 15:05:46,933 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-18 15:05:46,933 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-18 15:05:46,933 INFO L275 PluginConnector]: Sifa initialized [2019-09-18 15:05:46,934 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 03:05:46" (1/1) ... [2019-09-18 15:05:46,935 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-18 15:05:46,959 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-18 15:05:46,959 INFO L169 IcfgInterpreter]: Building call graph [2019-09-18 15:05:46,978 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-18 15:05:46,991 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-18 15:05:46,995 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-18 15:05:47,243 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 82 for LOIs [2019-09-18 15:05:47,355 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 80 for LOIs [2019-09-18 15:05:48,976 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 28 [2019-09-18 15:05:50,208 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-18 15:05:50,497 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-18 15:05:51,468 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-18 15:05:51,576 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-09-18 15:05:51,777 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-18 15:05:52,319 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2019-09-18 15:05:52,952 WARN L191 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 79 [2019-09-18 15:05:53,144 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-09-18 15:05:53,881 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 28 [2019-09-18 15:05:54,360 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-18 15:05:54,482 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-09-18 15:05:54,654 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-18 15:05:55,160 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33 [2019-09-18 15:05:55,683 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-18 15:05:55,957 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-18 15:05:56,161 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33 [2019-09-18 15:05:56,478 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2019-09-18 15:05:57,068 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-18 15:05:57,260 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-09-18 15:05:57,719 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2019-09-18 15:05:57,964 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2019-09-18 15:05:58,581 WARN L191 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2019-09-18 15:05:58,883 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-18 15:05:59,325 WARN L191 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-18 15:05:59,516 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-09-18 15:06:00,034 WARN L191 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2019-09-18 15:06:00,290 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2019-09-18 15:06:01,169 WARN L191 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 103 [2019-09-18 15:06:01,474 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-18 15:06:01,480 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 75 for LOIs [2019-09-18 15:06:01,763 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-18 15:06:01,890 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2019-09-18 15:06:02,242 WARN L191 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 85 [2019-09-18 15:06:02,907 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 76 [2019-09-18 15:06:03,284 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2019-09-18 15:06:03,426 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-18 15:06:04,022 WARN L191 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2019-09-18 15:06:04,302 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-18 15:06:04,937 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 105 [2019-09-18 15:06:05,116 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-18 15:06:05,504 WARN L191 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2019-09-18 15:06:05,640 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-18 15:06:06,096 WARN L191 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2019-09-18 15:06:06,444 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2019-09-18 15:06:06,612 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-18 15:06:07,085 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2019-09-18 15:06:07,483 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-18 15:06:07,756 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-18 15:06:08,702 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-18 15:06:08,995 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-18 15:06:09,468 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 30 for LOIs [2019-09-18 15:06:09,573 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 23 for LOIs [2019-09-18 15:06:09,625 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-18 15:06:09,626 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-18 15:06:09,628 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 1417#(or (and (= ~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 (= ~c_dr_st~0 1) (= 1 ~q_req_up~0) (not (= ~c_num_read~0 ~p_num_write~0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (= ~c_dr_pc~0 2))) [2019-09-18 15:06:09,638 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-18 15:06:09,639 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-18 15:06:09,640 INFO L168 Benchmark]: Toolchain (without parser) took 23867.80 ms. Allocated memory was 133.7 MB in the beginning and 458.2 MB in the end (delta: 324.5 MB). Free memory was 89.3 MB in the beginning and 307.1 MB in the end (delta: -217.7 MB). Peak memory consumption was 106.8 MB. Max. memory is 7.1 GB. [2019-09-18 15:06:09,641 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-18 15:06:09,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.31 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 89.1 MB in the beginning and 174.3 MB in the end (delta: -85.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2019-09-18 15:06:09,643 INFO L168 Benchmark]: Boogie Preprocessor took 42.43 ms. Allocated memory is still 199.8 MB. Free memory was 174.3 MB in the beginning and 171.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-09-18 15:06:09,644 INFO L168 Benchmark]: RCFGBuilder took 698.74 ms. Allocated memory is still 199.8 MB. Free memory was 171.8 MB in the beginning and 129.2 MB in the end (delta: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 7.1 GB. [2019-09-18 15:06:09,645 INFO L168 Benchmark]: Sifa took 22706.08 ms. Allocated memory was 199.8 MB in the beginning and 458.2 MB in the end (delta: 258.5 MB). Free memory was 129.2 MB in the beginning and 307.1 MB in the end (delta: -177.9 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2019-09-18 15:06:09,648 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 417.31 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 89.1 MB in the beginning and 174.3 MB in the end (delta: -85.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.43 ms. Allocated memory is still 199.8 MB. Free memory was 174.3 MB in the beginning and 171.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 698.74 ms. Allocated memory is still 199.8 MB. Free memory was 171.8 MB in the beginning and 129.2 MB in the end (delta: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 7.1 GB. * Sifa took 22706.08 ms. Allocated memory was 199.8 MB in the beginning and 458.2 MB in the end (delta: 258.5 MB). Free memory was 129.2 MB in the beginning and 307.1 MB in the end (delta: -177.9 MB). Peak memory consumption was 80.6 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]: 22670, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 905, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 738, TOOLS_POST_TIME[ms]: 174, TOOLS_POST_CALL_APPLICATIONS: 117, TOOLS_POST_CALL_TIME[ms]: 266, TOOLS_POST_RETURN_APPLICATIONS: 111, TOOLS_POST_RETURN_TIME[ms]: 120, TOOLS_QUANTIFIERELIM_APPLICATIONS: 965, TOOLS_QUANTIFIERELIM_TIME[ms]: 369, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 17, FLUID_QUERY_TIME[ms]: 19, FLUID_QUERIES: 929, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 192, DOMAIN_JOIN_TIME[ms]: 19904, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 10, DOMAIN_WIDEN_TIME[ms]: 1645, DOMAIN_ISSUBSETEQ_APPLICATIONS: 24, DOMAIN_ISSUBSETEQ_TIME[ms]: 25, DOMAIN_ISBOTTOM_APPLICATIONS: 141, DOMAIN_ISBOTTOM_TIME[ms]: 287, LOOP_SUMMARIZER_APPLICATIONS: 14, LOOP_SUMMARIZER_CACHE_MISSES: 14, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 17266, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 17265, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 24, CALL_SUMMARIZER_APPLICATIONS: 111, CALL_SUMMARIZER_CACHE_MISSES: 19, CALL_SUMMARIZER_OVERALL_TIME[ms]: 8802, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 8801, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 12, PATH_EXPR_TIME[ms]: 11, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 65, DAG_COMPRESSION_PROCESSED_NODES: 914, DAG_COMPRESSION_RETAINED_NODES: 464 - 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 1417#(or (and (= ~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 (= ~c_dr_st~0 1) (= 1 ~q_req_up~0) (not (= ~c_num_read~0 ~p_num_write~0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (= ~c_dr_pc~0 2))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...