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 IntervalDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --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 [2019-09-17 10:38:23,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-17 10:38:23,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-17 10:38:23,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-17 10:38:23,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-17 10:38:23,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-17 10:38:23,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-17 10:38:23,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-17 10:38:23,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-17 10:38:23,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-17 10:38:23,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-17 10:38:23,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-17 10:38:23,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-17 10:38:23,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-17 10:38:23,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-17 10:38:23,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-17 10:38:23,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-17 10:38:23,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-17 10:38:23,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-17 10:38:23,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-17 10:38:23,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-17 10:38:23,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-17 10:38:23,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-17 10:38:23,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-17 10:38:23,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-17 10:38:23,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-17 10:38:23,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-17 10:38:23,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-17 10:38:23,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-17 10:38:23,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-17 10:38:23,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-17 10:38:23,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-17 10:38:23,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-17 10:38:23,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-17 10:38:23,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-17 10:38:23,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-17 10:38:23,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-17 10:38:23,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-17 10:38:23,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-17 10:38:23,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-17 10:38:23,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-17 10:38:23,233 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 [2019-09-17 10:38:23,248 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-17 10:38:23,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-17 10:38:23,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-17 10:38:23,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-17 10:38:23,252 INFO L138 SettingsManager]: * Use SBE=true [2019-09-17 10:38:23,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-17 10:38:23,252 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-17 10:38:23,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-17 10:38:23,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-17 10:38:23,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-17 10:38:23,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-17 10:38:23,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-17 10:38:23,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-17 10:38:23,253 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-17 10:38:23,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-17 10:38:23,254 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-17 10:38:23,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-17 10:38:23,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-17 10:38:23,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-17 10:38:23,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-17 10:38:23,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-17 10:38:23,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-17 10:38:23,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-17 10:38:23,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-17 10:38:23,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-17 10:38:23,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-17 10:38:23,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-17 10:38:23,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-17 10:38:23,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-17 10:38:23,311 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-17 10:38:23,322 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-17 10:38:23,325 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-17 10:38:23,327 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-17 10:38:23,327 INFO L275 PluginConnector]: CDTParser initialized [2019-09-17 10:38:23,328 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-17 10:38:23,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a42e62c/7202378145e74880a73d5aa5c3f51729/FLAG1aab0c2f2 [2019-09-17 10:38:23,823 INFO L306 CDTParser]: Found 1 translation units. [2019-09-17 10:38:23,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-17 10:38:23,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a42e62c/7202378145e74880a73d5aa5c3f51729/FLAG1aab0c2f2 [2019-09-17 10:38:24,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a42e62c/7202378145e74880a73d5aa5c3f51729 [2019-09-17 10:38:24,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-17 10:38:24,176 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-17 10:38:24,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-17 10:38:24,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-17 10:38:24,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-17 10:38:24,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 10:38:24" (1/1) ... [2019-09-17 10:38:24,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22f7dd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:38:24, skipping insertion in model container [2019-09-17 10:38:24,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 10:38:24" (1/1) ... [2019-09-17 10:38:24,194 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-17 10:38:24,232 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-17 10:38:24,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-17 10:38:24,455 INFO L188 MainTranslator]: Completed pre-run [2019-09-17 10:38:24,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-17 10:38:24,613 INFO L192 MainTranslator]: Completed translation [2019-09-17 10:38:24,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:38:24 WrapperNode [2019-09-17 10:38:24,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-17 10:38:24,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-17 10:38:24,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-17 10:38:24,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-17 10:38:24,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:38:24" (1/1) ... [2019-09-17 10:38:24,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:38:24" (1/1) ... [2019-09-17 10:38:24,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:38:24" (1/1) ... [2019-09-17 10:38:24,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:38:24" (1/1) ... [2019-09-17 10:38:24,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:38:24" (1/1) ... [2019-09-17 10:38:24,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:38:24" (1/1) ... [2019-09-17 10:38:24,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:38:24" (1/1) ... [2019-09-17 10:38:24,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-17 10:38:24,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-17 10:38:24,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-17 10:38:24,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-17 10:38:24,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:38:24" (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 [2019-09-17 10:38:24,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-17 10:38:24,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-17 10:38:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-17 10:38:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-17 10:38:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-17 10:38:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-17 10:38:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-17 10:38:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-17 10:38:24,720 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-17 10:38:24,720 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-17 10:38:24,720 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-17 10:38:24,720 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-17 10:38:24,720 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-17 10:38:24,720 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-17 10:38:24,721 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-09-17 10:38:24,721 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-09-17 10:38:24,721 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-17 10:38:24,721 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-17 10:38:24,721 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-17 10:38:24,722 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-17 10:38:24,722 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-17 10:38:24,722 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-17 10:38:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-17 10:38:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-17 10:38:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-17 10:38:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-17 10:38:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-17 10:38:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-17 10:38:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-17 10:38:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-17 10:38:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-17 10:38:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-17 10:38:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-17 10:38:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-17 10:38:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-17 10:38:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-17 10:38:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-09-17 10:38:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-09-17 10:38:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-17 10:38:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-17 10:38:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-17 10:38:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-17 10:38:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-17 10:38:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-17 10:38:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-17 10:38:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-17 10:38:25,280 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; [2019-09-17 10:38:25,281 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2019-09-17 10:38:25,501 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-17 10:38:25,501 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-17 10:38:25,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 10:38:25 BoogieIcfgContainer [2019-09-17 10:38:25,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-17 10:38:25,504 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-17 10:38:25,504 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-17 10:38:25,504 INFO L275 PluginConnector]: Sifa initialized [2019-09-17 10:38:25,505 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 10:38:25" (1/1) ... [2019-09-17 10:38:25,506 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=IntervalDomain ♦ 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 [2019-09-17 10:38:25,534 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-17 10:38:25,535 INFO L169 IcfgInterpreter]: Building call graph [2019-09-17 10:38:25,549 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-17 10:38:25,561 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-17 10:38:25,563 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-17 10:38:25,808 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2019-09-17 10:38:25,849 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 102 for LOIs [2019-09-17 10:38:25,992 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 100 for LOIs [2019-09-17 10:38:27,307 WARN L191 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-17 10:38:28,088 WARN L191 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-09-17 10:38:28,486 WARN L191 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-09-17 10:38:28,909 WARN L191 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2019-09-17 10:38:29,302 WARN L191 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-09-17 10:38:29,456 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2019-09-17 10:38:29,462 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 44 for LOIs [2019-09-17 10:38:30,079 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 31 for LOIs [2019-09-17 10:38:30,102 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 21 for LOIs [2019-09-17 10:38:30,121 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-17 10:38:30,121 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-17 10:38:30,123 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 449#(and (<= 1 ~c_dr_i~0) (<= ~c_dr_i~0 1) (<= ~p_dw_i~0 1) (<= 1 ~c_dr_st~0) (<= 1 ~p_dw_i~0) (<= 1 ~q_req_up~0) (<= ~q_free~0 1) (<= ~c_dr_pc~0 2) (<= ~q_req_up~0 1) (<= 2 ~c_dr_pc~0) (<= ~c_dr_st~0 1) (<= 1 ~q_free~0)) [2019-09-17 10:38:30,136 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-17 10:38:30,136 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-17 10:38:30,138 INFO L168 Benchmark]: Toolchain (without parser) took 5961.55 ms. Allocated memory was 131.1 MB in the beginning and 337.1 MB in the end (delta: 206.0 MB). Free memory was 85.5 MB in the beginning and 221.2 MB in the end (delta: -135.7 MB). Peak memory consumption was 70.3 MB. Max. memory is 7.1 GB. [2019-09-17 10:38:30,139 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 131.1 MB. Free memory is still 103.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-17 10:38:30,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 436.38 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 85.0 MB in the beginning and 172.0 MB in the end (delta: -86.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2019-09-17 10:38:30,141 INFO L168 Benchmark]: Boogie Preprocessor took 45.90 ms. Allocated memory is still 198.2 MB. Free memory was 172.0 MB in the beginning and 170.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-09-17 10:38:30,142 INFO L168 Benchmark]: RCFGBuilder took 842.99 ms. Allocated memory is still 198.2 MB. Free memory was 170.1 MB in the beginning and 113.6 MB in the end (delta: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 7.1 GB. [2019-09-17 10:38:30,143 INFO L168 Benchmark]: Sifa took 4632.87 ms. Allocated memory was 198.2 MB in the beginning and 337.1 MB in the end (delta: 138.9 MB). Free memory was 112.7 MB in the beginning and 221.2 MB in the end (delta: -108.5 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2019-09-17 10:38:30,146 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 131.1 MB. Free memory is still 103.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 436.38 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 85.0 MB in the beginning and 172.0 MB in the end (delta: -86.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.90 ms. Allocated memory is still 198.2 MB. Free memory was 172.0 MB in the beginning and 170.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 842.99 ms. Allocated memory is still 198.2 MB. Free memory was 170.1 MB in the beginning and 113.6 MB in the end (delta: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 7.1 GB. * Sifa took 4632.87 ms. Allocated memory was 198.2 MB in the beginning and 337.1 MB in the end (delta: 138.9 MB). Free memory was 112.7 MB in the beginning and 221.2 MB in the end (delta: -108.5 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 4592, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 292, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 206, TOOLS_POST_TIME[ms]: 83, TOOLS_POST_CALL_APPLICATIONS: 71, TOOLS_POST_CALL_TIME[ms]: 299, TOOLS_POST_RETURN_APPLICATIONS: 65, TOOLS_POST_RETURN_TIME[ms]: 88, TOOLS_QUANTIFIERELIM_APPLICATIONS: 342, TOOLS_QUANTIFIERELIM_TIME[ms]: 332, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 25, FLUID_QUERY_TIME[ms]: 12, FLUID_QUERIES: 298, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 103, DOMAIN_JOIN_TIME[ms]: 3807, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 7, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 7, DOMAIN_ISBOTTOM_APPLICATIONS: 76, DOMAIN_ISBOTTOM_TIME[ms]: 116, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 2927, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 2925, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 65, CALL_SUMMARIZER_CACHE_MISSES: 20, CALL_SUMMARIZER_OVERALL_TIME[ms]: 1376, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1376, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 9, PATH_EXPR_TIME[ms]: 11, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 52, 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 449#(and (<= 1 ~c_dr_i~0) (<= ~c_dr_i~0 1) (<= ~p_dw_i~0 1) (<= 1 ~c_dr_st~0) (<= 1 ~p_dw_i~0) (<= 1 ~q_req_up~0) (<= ~q_free~0 1) (<= ~c_dr_pc~0 2) (<= ~q_req_up~0 1) (<= 2 ~c_dr_pc~0) (<= ~c_dr_st~0 1) (<= 1 ~q_free~0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...