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 SequenceOfStatements --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-fea9116 [2019-09-20 18:45:03,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 18:45:03,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 18:45:03,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 18:45:03,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 18:45:03,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 18:45:03,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 18:45:03,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 18:45:03,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 18:45:03,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 18:45:03,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 18:45:03,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 18:45:03,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 18:45:03,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 18:45:03,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 18:45:03,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 18:45:03,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 18:45:03,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 18:45:03,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 18:45:03,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 18:45:03,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 18:45:03,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 18:45:03,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 18:45:03,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 18:45:03,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 18:45:03,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 18:45:03,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 18:45:03,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 18:45:03,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 18:45:03,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 18:45:03,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 18:45:03,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 18:45:03,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 18:45:03,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 18:45:03,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 18:45:03,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 18:45:03,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 18:45:03,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 18:45:03,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 18:45:03,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 18:45:03,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 18:45:03,612 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-20 18:45:03,631 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 18:45:03,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 18:45:03,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 18:45:03,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 18:45:03,633 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 18:45:03,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 18:45:03,633 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 18:45:03,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 18:45:03,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 18:45:03,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 18:45:03,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 18:45:03,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 18:45:03,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 18:45:03,635 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 18:45:03,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 18:45:03,635 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 18:45:03,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 18:45:03,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 18:45:03,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 18:45:03,636 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 18:45:03,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 18:45:03,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 18:45:03,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 18:45:03,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 18:45:03,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 18:45:03,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 18:45:03,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 18:45:03,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 18:45:03,638 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 -> SequenceOfStatements 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 [2019-09-20 18:45:03,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 18:45:03,682 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 18:45:03,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 18:45:03,691 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 18:45:03,691 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 18:45:03,692 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-20 18:45:03,771 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/396fff3a4/e8c22360c7c949aca469299c9251ef4f/FLAGa1070695b [2019-09-20 18:45:04,227 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 18:45:04,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-20 18:45:04,245 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/396fff3a4/e8c22360c7c949aca469299c9251ef4f/FLAGa1070695b [2019-09-20 18:45:04,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/396fff3a4/e8c22360c7c949aca469299c9251ef4f [2019-09-20 18:45:04,584 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 18:45:04,586 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 18:45:04,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 18:45:04,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 18:45:04,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 18:45:04,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 06:45:04" (1/1) ... [2019-09-20 18:45:04,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f6c6910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:04, skipping insertion in model container [2019-09-20 18:45:04,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 06:45:04" (1/1) ... [2019-09-20 18:45:04,605 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 18:45:04,641 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 18:45:04,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 18:45:04,929 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 18:45:05,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 18:45:05,088 INFO L192 MainTranslator]: Completed translation [2019-09-20 18:45:05,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:05 WrapperNode [2019-09-20 18:45:05,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 18:45:05,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 18:45:05,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 18:45:05,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 18:45:05,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:05" (1/1) ... [2019-09-20 18:45:05,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:05" (1/1) ... [2019-09-20 18:45:05,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:05" (1/1) ... [2019-09-20 18:45:05,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:05" (1/1) ... [2019-09-20 18:45:05,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:05" (1/1) ... [2019-09-20 18:45:05,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:05" (1/1) ... [2019-09-20 18:45:05,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:05" (1/1) ... [2019-09-20 18:45:05,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 18:45:05,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 18:45:05,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 18:45:05,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 18:45:05,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 18:45:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 18:45:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 18:45:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-20 18:45:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-20 18:45:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-20 18:45:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-20 18:45:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-20 18:45:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-20 18:45:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-20 18:45:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-20 18:45:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-20 18:45:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-20 18:45:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-20 18:45:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-20 18:45:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-09-20 18:45:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-09-20 18:45:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-20 18:45:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-20 18:45:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-20 18:45:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-20 18:45:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-20 18:45:05,208 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 18:45:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 18:45:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 18:45:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-20 18:45:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-20 18:45:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-20 18:45:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-20 18:45:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-20 18:45:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-20 18:45:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-20 18:45:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-20 18:45:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-20 18:45:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-20 18:45:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-20 18:45:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-20 18:45:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-09-20 18:45:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-09-20 18:45:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-20 18:45:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-20 18:45:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-20 18:45:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-20 18:45:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-20 18:45:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 18:45:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 18:45:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 18:45:05,738 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := ~a~0; [2019-09-20 18:45:05,739 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2019-09-20 18:45:05,767 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 18:45:05,767 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 18:45:05,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 06:45:05 BoogieIcfgContainer [2019-09-20 18:45:05,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 18:45:05,774 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 18:45:05,775 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 18:45:05,775 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 18:45:05,776 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 06:45:05" (1/1) ... [2019-09-20 18:45:05,777 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 [2019-09-20 18:45:05,810 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 18:45:05,810 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 18:45:05,828 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 18:45:05,842 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 18:45:05,847 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 18:45:06,061 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 82 for LOIs [2019-09-20 18:45:06,145 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 80 for LOIs [2019-09-20 18:45:08,182 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 31 [2019-09-20 18:45:10,090 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 79 [2019-09-20 18:45:10,293 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-09-20 18:45:12,174 WARN L191 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2019-09-20 18:45:12,356 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-09-20 18:45:12,710 WARN L191 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-20 18:45:12,877 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-09-20 18:45:13,392 WARN L191 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2019-09-20 18:45:13,660 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 18:45:14,037 WARN L191 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-20 18:45:14,440 WARN L191 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2019-09-20 18:45:14,603 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-09-20 18:45:15,112 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2019-09-20 18:45:15,360 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 18:45:15,763 WARN L191 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-20 18:45:16,341 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2019-09-20 18:45:16,581 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 18:45:17,221 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104 [2019-09-20 18:45:17,520 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-09-20 18:45:17,528 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 75 for LOIs [2019-09-20 18:45:17,828 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-20 18:45:18,148 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-20 18:45:18,261 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-09-20 18:45:18,749 WARN L191 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 95 [2019-09-20 18:45:18,984 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-20 18:45:19,352 WARN L191 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2019-09-20 18:45:19,875 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 95 [2019-09-20 18:45:20,103 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-20 18:45:20,586 WARN L191 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2019-09-20 18:45:20,808 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-20 18:45:21,021 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-20 18:45:21,224 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-20 18:45:21,526 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2019-09-20 18:45:21,658 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-20 18:45:21,993 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2019-09-20 18:45:22,148 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-09-20 18:45:22,478 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2019-09-20 18:45:22,641 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-09-20 18:45:23,043 WARN L191 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2019-09-20 18:45:23,220 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-09-20 18:45:23,682 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 96 [2019-09-20 18:45:24,125 WARN L191 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2019-09-20 18:45:24,302 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-09-20 18:45:24,681 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2019-09-20 18:45:24,848 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-09-20 18:45:25,062 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-09-20 18:45:25,267 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-09-20 18:45:25,602 WARN L191 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2019-09-20 18:45:25,760 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-09-20 18:45:26,265 WARN L191 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2019-09-20 18:45:26,505 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-20 18:45:26,511 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 63 for LOIs [2019-09-20 18:45:26,642 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 42 [2019-09-20 18:45:26,686 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 42 for LOIs [2019-09-20 18:45:26,777 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 18:45:26,778 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 18:45:26,781 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 744#(or (and (= 1 ~q_req_up~0) (and (not (= ~q_read_ev~0 1)) (not (= ~slow_clk_edge~0 1)) (= ~c_dr_st~0 1) (= ~p_dw_i~0 1) (not (= 1 ~fast_clk_edge~0)) (= 1 ~c_dr_i~0) (not (= ~q_write_ev~0 1)) (< ~t~0 2)) (= 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 (= 1 ~q_req_up~0) (not (= ~c_num_read~0 ~p_num_write~0)) (and (not (= ~q_read_ev~0 1)) (not (= ~slow_clk_edge~0 1)) (= ~c_dr_st~0 1) (= ~p_dw_i~0 1) (not (= 1 ~fast_clk_edge~0)) (= 1 ~c_dr_i~0) (not (= ~q_write_ev~0 1)) (< ~t~0 2)) (= 1 ~q_free~0) (= ~c_dr_pc~0 2) (= ~c_last_read~0 ~q_buf_0~0))) [2019-09-20 18:45:26,792 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 18:45:26,792 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 18:45:26,793 INFO L168 Benchmark]: Toolchain (without parser) took 22207.89 ms. Allocated memory was 137.9 MB in the beginning and 502.3 MB in the end (delta: 364.4 MB). Free memory was 85.4 MB in the beginning and 470.3 MB in the end (delta: -384.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 18:45:26,794 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 137.9 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 18:45:26,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 500.15 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 85.2 MB in the beginning and 175.0 MB in the end (delta: -89.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2019-09-20 18:45:26,796 INFO L168 Benchmark]: Boogie Preprocessor took 44.02 ms. Allocated memory is still 199.2 MB. Free memory was 175.0 MB in the beginning and 173.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-09-20 18:45:26,797 INFO L168 Benchmark]: RCFGBuilder took 640.28 ms. Allocated memory is still 199.2 MB. Free memory was 173.0 MB in the beginning and 137.0 MB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. [2019-09-20 18:45:26,798 INFO L168 Benchmark]: Sifa took 21017.52 ms. Allocated memory was 199.2 MB in the beginning and 502.3 MB in the end (delta: 303.0 MB). Free memory was 137.0 MB in the beginning and 470.3 MB in the end (delta: -333.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 18:45:26,801 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 137.9 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 500.15 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 85.2 MB in the beginning and 175.0 MB in the end (delta: -89.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.02 ms. Allocated memory is still 199.2 MB. Free memory was 175.0 MB in the beginning and 173.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 640.28 ms. Allocated memory is still 199.2 MB. Free memory was 173.0 MB in the beginning and 137.0 MB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. * Sifa took 21017.52 ms. Allocated memory was 199.2 MB in the beginning and 502.3 MB in the end (delta: 303.0 MB). Free memory was 137.0 MB in the beginning and 470.3 MB in the end (delta: -333.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 20971, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 395, DAG_INTERPRETER_EARLY_EXITS: 4, TOOLS_POST_APPLICATIONS: 282, TOOLS_POST_TIME[ms]: 122, TOOLS_POST_CALL_APPLICATIONS: 81, TOOLS_POST_CALL_TIME[ms]: 258, TOOLS_POST_RETURN_APPLICATIONS: 75, TOOLS_POST_RETURN_TIME[ms]: 100, TOOLS_QUANTIFIERELIM_APPLICATIONS: 437, TOOLS_QUANTIFIERELIM_TIME[ms]: 348, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 17, FLUID_QUERY_TIME[ms]: 16, FLUID_QUERIES: 402, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 137, DOMAIN_JOIN_TIME[ms]: 18614, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 1450, DOMAIN_ISSUBSETEQ_APPLICATIONS: 7, DOMAIN_ISSUBSETEQ_TIME[ms]: 9, DOMAIN_ISBOTTOM_APPLICATIONS: 113, DOMAIN_ISBOTTOM_TIME[ms]: 219, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 15530, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 15529, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 7, CALL_SUMMARIZER_APPLICATIONS: 75, CALL_SUMMARIZER_CACHE_MISSES: 20, CALL_SUMMARIZER_OVERALL_TIME[ms]: 5137, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 5136, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 8, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 52, DAG_COMPRESSION_PROCESSED_NODES: 539, DAG_COMPRESSION_RETAINED_NODES: 284 - 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 744#(or (and (= 1 ~q_req_up~0) (and (not (= ~q_read_ev~0 1)) (not (= ~slow_clk_edge~0 1)) (= ~c_dr_st~0 1) (= ~p_dw_i~0 1) (not (= 1 ~fast_clk_edge~0)) (= 1 ~c_dr_i~0) (not (= ~q_write_ev~0 1)) (< ~t~0 2)) (= 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 (= 1 ~q_req_up~0) (not (= ~c_num_read~0 ~p_num_write~0)) (and (not (= ~q_read_ev~0 1)) (not (= ~slow_clk_edge~0 1)) (= ~c_dr_st~0 1) (= ~p_dw_i~0 1) (not (= 1 ~fast_clk_edge~0)) (= 1 ~c_dr_i~0) (not (= ~q_write_ev~0 1)) (< ~t~0 2)) (= 1 ~q_free~0) (= ~c_dr_pc~0 2) (= ~c_last_read~0 ~q_buf_0~0))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...