java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid NeverFluid --sifa.intern.fluid NeverFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-20 00:26:40,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 00:26:40,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 00:26:40,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 00:26:40,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 00:26:40,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 00:26:40,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 00:26:40,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 00:26:40,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 00:26:40,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 00:26:40,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 00:26:40,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 00:26:40,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 00:26:40,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 00:26:40,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 00:26:40,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 00:26:40,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 00:26:40,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 00:26:40,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 00:26:40,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 00:26:40,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 00:26:40,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 00:26:40,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 00:26:40,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 00:26:40,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 00:26:40,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 00:26:40,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 00:26:40,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 00:26:40,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 00:26:40,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 00:26:40,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 00:26:40,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 00:26:40,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 00:26:40,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 00:26:40,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 00:26:40,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 00:26:40,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 00:26:40,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 00:26:40,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 00:26:40,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 00:26:40,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 00:26:40,240 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 00:26:40,260 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 00:26:40,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 00:26:40,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 00:26:40,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 00:26:40,264 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 00:26:40,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 00:26:40,264 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 00:26:40,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 00:26:40,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 00:26:40,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 00:26:40,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 00:26:40,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 00:26:40,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 00:26:40,266 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 00:26:40,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 00:26:40,267 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 00:26:40,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 00:26:40,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 00:26:40,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 00:26:40,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 00:26:40,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 00:26:40,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 00:26:40,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 00:26:40,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 00:26:40,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 00:26:40,269 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 00:26:40,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 00:26:40,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 00:26:40,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> NeverFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> NeverFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-20 00:26:40,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 00:26:40,338 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 00:26:40,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 00:26:40,343 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 00:26:40,343 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 00:26:40,344 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-20 00:26:40,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/313a7fc58/25fe5c6f5dd949e5bccc3e9efc3a5fc0/FLAG57b6c07eb [2019-09-20 00:26:40,886 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 00:26:40,887 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-20 00:26:40,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/313a7fc58/25fe5c6f5dd949e5bccc3e9efc3a5fc0/FLAG57b6c07eb [2019-09-20 00:26:41,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/313a7fc58/25fe5c6f5dd949e5bccc3e9efc3a5fc0 [2019-09-20 00:26:41,248 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 00:26:41,250 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 00:26:41,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 00:26:41,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 00:26:41,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 00:26:41,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:26:41" (1/1) ... [2019-09-20 00:26:41,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f16152e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:41, skipping insertion in model container [2019-09-20 00:26:41,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:26:41" (1/1) ... [2019-09-20 00:26:41,267 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 00:26:41,300 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 00:26:41,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 00:26:41,514 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 00:26:41,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 00:26:41,690 INFO L192 MainTranslator]: Completed translation [2019-09-20 00:26:41,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:41 WrapperNode [2019-09-20 00:26:41,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 00:26:41,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 00:26:41,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 00:26:41,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 00:26:41,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:41" (1/1) ... [2019-09-20 00:26:41,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:41" (1/1) ... [2019-09-20 00:26:41,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:41" (1/1) ... [2019-09-20 00:26:41,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:41" (1/1) ... [2019-09-20 00:26:41,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:41" (1/1) ... [2019-09-20 00:26:41,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:41" (1/1) ... [2019-09-20 00:26:41,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:41" (1/1) ... [2019-09-20 00:26:41,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 00:26:41,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 00:26:41,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 00:26:41,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 00:26:41,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:41" (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 00:26:41,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 00:26:41,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 00:26:41,805 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-20 00:26:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-20 00:26:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-20 00:26:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-20 00:26:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-20 00:26:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-20 00:26:41,807 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-20 00:26:41,807 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-20 00:26:41,807 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-20 00:26:41,807 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-20 00:26:41,807 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-20 00:26:41,807 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-20 00:26:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-09-20 00:26:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-09-20 00:26:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-20 00:26:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-20 00:26:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-20 00:26:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-20 00:26:41,809 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-20 00:26:41,809 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 00:26:41,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 00:26:41,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 00:26:41,809 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-20 00:26:41,809 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-20 00:26:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-20 00:26:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-20 00:26:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-20 00:26:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-20 00:26:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-20 00:26:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-20 00:26:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-20 00:26:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-20 00:26:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-20 00:26:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-20 00:26:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-09-20 00:26:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-09-20 00:26:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-20 00:26:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-20 00:26:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-20 00:26:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-20 00:26:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-20 00:26:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 00:26:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 00:26:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 00:26:42,328 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 00:26:42,329 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2019-09-20 00:26:42,591 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 00:26:42,592 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 00:26:42,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:26:42 BoogieIcfgContainer [2019-09-20 00:26:42,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 00:26:42,594 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 00:26:42,594 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 00:26:42,594 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 00:26:42,595 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:26:42" (1/1) ... [2019-09-20 00:26:42,596 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=NeverFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=NeverFluid [2019-09-20 00:26:42,621 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 00:26:42,621 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 00:26:42,638 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 00:26:42,647 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 00:26:42,649 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 00:26:42,854 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 82 for LOIs [2019-09-20 00:26:42,951 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 80 for LOIs [2019-09-20 00:26:45,073 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 27 [2019-09-20 00:26:46,422 WARN L191 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-20 00:26:46,620 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 00:26:47,861 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2019-09-20 00:26:48,562 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-20 00:26:48,773 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-20 00:26:49,173 WARN L191 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2019-09-20 00:26:49,371 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 00:26:49,989 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2019-09-20 00:26:50,246 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-20 00:26:50,652 WARN L191 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2019-09-20 00:26:50,830 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-09-20 00:26:51,389 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2019-09-20 00:26:51,759 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-20 00:26:52,283 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-20 00:26:52,415 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-09-20 00:26:52,863 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2019-09-20 00:26:53,051 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-09-20 00:26:53,060 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 81 for LOIs [2019-09-20 00:26:53,545 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 94 [2019-09-20 00:26:53,687 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-09-20 00:26:54,036 WARN L191 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 94 [2019-09-20 00:26:54,186 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-09-20 00:26:54,685 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 104 [2019-09-20 00:26:54,915 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-09-20 00:26:55,353 WARN L191 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 98 [2019-09-20 00:26:55,835 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 104 [2019-09-20 00:26:56,056 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-09-20 00:26:56,383 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 79 [2019-09-20 00:26:56,519 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-09-20 00:26:56,872 WARN L191 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2019-09-20 00:26:57,040 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 00:26:57,319 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 85 [2019-09-20 00:26:57,437 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 00:26:57,694 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-20 00:26:58,025 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-20 00:26:58,126 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 00:26:58,500 WARN L191 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-20 00:26:58,679 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 00:26:59,046 WARN L191 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2019-09-20 00:26:59,424 WARN L191 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-20 00:26:59,590 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 00:26:59,925 WARN L191 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-20 00:27:00,101 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 00:27:00,461 WARN L191 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2019-09-20 00:27:00,643 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 00:27:00,890 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-20 00:27:00,995 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 00:27:01,366 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2019-09-20 00:27:01,540 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 00:27:01,545 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 51 for LOIs [2019-09-20 00:27:01,677 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 31 for LOIs [2019-09-20 00:27:01,748 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 00:27:01,748 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 00:27:01,751 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 615#(or (and (and (and (not (= ~q_read_ev~0 1)) (not (= ~q_write_ev~0 1))) (= ~c_dr_st~0 1)) (= 1 ~q_req_up~0) (= 1 ~q_free~0) (= ~c_dr_pc~0 2) (= ~c_last_read~0 ~q_buf_0~0) (not (= ~c_last_read~0 ~p_last_write~0))) (and (and (and (not (= ~q_read_ev~0 1)) (not (= ~q_write_ev~0 1))) (= ~c_dr_st~0 1)) (= 1 ~q_req_up~0) (not (= ~c_num_read~0 ~p_num_write~0)) (= 1 ~q_free~0) (= ~c_dr_pc~0 2) (= ~c_last_read~0 ~q_buf_0~0))) [2019-09-20 00:27:01,762 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 00:27:01,762 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 00:27:01,764 INFO L168 Benchmark]: Toolchain (without parser) took 20514.34 ms. Allocated memory was 133.7 MB in the beginning and 431.0 MB in the end (delta: 297.3 MB). Free memory was 89.0 MB in the beginning and 116.3 MB in the end (delta: -27.3 MB). Peak memory consumption was 270.0 MB. Max. memory is 7.1 GB. [2019-09-20 00:27:01,765 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 00:27:01,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.42 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 88.8 MB in the beginning and 174.3 MB in the end (delta: -85.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2019-09-20 00:27:01,767 INFO L168 Benchmark]: Boogie Preprocessor took 52.53 ms. Allocated memory is still 199.8 MB. Free memory was 174.3 MB in the beginning and 171.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-09-20 00:27:01,768 INFO L168 Benchmark]: RCFGBuilder took 848.70 ms. Allocated memory is still 199.8 MB. Free memory was 171.9 MB in the beginning and 114.8 MB in the end (delta: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 7.1 GB. [2019-09-20 00:27:01,769 INFO L168 Benchmark]: Sifa took 19168.81 ms. Allocated memory was 199.8 MB in the beginning and 431.0 MB in the end (delta: 231.2 MB). Free memory was 114.8 MB in the beginning and 116.3 MB in the end (delta: -1.5 MB). Peak memory consumption was 229.7 MB. Max. memory is 7.1 GB. [2019-09-20 00:27:01,773 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 440.42 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 88.8 MB in the beginning and 174.3 MB in the end (delta: -85.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.53 ms. Allocated memory is still 199.8 MB. Free memory was 174.3 MB in the beginning and 171.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 848.70 ms. Allocated memory is still 199.8 MB. Free memory was 171.9 MB in the beginning and 114.8 MB in the end (delta: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 7.1 GB. * Sifa took 19168.81 ms. Allocated memory was 199.8 MB in the beginning and 431.0 MB in the end (delta: 231.2 MB). Free memory was 114.8 MB in the beginning and 116.3 MB in the end (delta: -1.5 MB). Peak memory consumption was 229.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 19131, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 310, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 214, TOOLS_POST_TIME[ms]: 120, TOOLS_POST_CALL_APPLICATIONS: 81, TOOLS_POST_CALL_TIME[ms]: 251, TOOLS_POST_RETURN_APPLICATIONS: 75, TOOLS_POST_RETURN_TIME[ms]: 132, TOOLS_QUANTIFIERELIM_APPLICATIONS: 370, TOOLS_QUANTIFIERELIM_TIME[ms]: 376, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 13, FLUID_QUERY_TIME[ms]: 1, FLUID_QUERIES: 317, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 105, DOMAIN_JOIN_TIME[ms]: 16604, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 1656, DOMAIN_ISSUBSETEQ_APPLICATIONS: 7, DOMAIN_ISSUBSETEQ_TIME[ms]: 13, DOMAIN_ISBOTTOM_APPLICATIONS: 77, DOMAIN_ISBOTTOM_TIME[ms]: 197, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 14968, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 14966, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 7, CALL_SUMMARIZER_APPLICATIONS: 75, CALL_SUMMARIZER_CACHE_MISSES: 20, CALL_SUMMARIZER_OVERALL_TIME[ms]: 4394, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 4393, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 36, DAG_COMPRESSION_PROCESSED_NODES: 411, DAG_COMPRESSION_RETAINED_NODES: 211 - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 615#(or (and (and (and (not (= ~q_read_ev~0 1)) (not (= ~q_write_ev~0 1))) (= ~c_dr_st~0 1)) (= 1 ~q_req_up~0) (= 1 ~q_free~0) (= ~c_dr_pc~0 2) (= ~c_last_read~0 ~q_buf_0~0) (not (= ~c_last_read~0 ~p_last_write~0))) (and (and (and (not (= ~q_read_ev~0 1)) (not (= ~q_write_ev~0 1))) (= ~c_dr_st~0 1)) (= 1 ~q_req_up~0) (not (= ~c_num_read~0 ~p_num_write~0)) (= 1 ~q_free~0) (= ~c_dr_pc~0 2) (= ~c_last_read~0 ~q_buf_0~0))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...