java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.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 [2019-09-16 20:24:21,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 20:24:21,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 20:24:21,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 20:24:21,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 20:24:21,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 20:24:21,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 20:24:21,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 20:24:21,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 20:24:21,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 20:24:21,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 20:24:21,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 20:24:21,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 20:24:21,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 20:24:21,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 20:24:21,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 20:24:21,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 20:24:21,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 20:24:21,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 20:24:21,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 20:24:21,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 20:24:21,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 20:24:21,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 20:24:21,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 20:24:21,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 20:24:21,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 20:24:21,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 20:24:21,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 20:24:21,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 20:24:21,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 20:24:21,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 20:24:21,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 20:24:21,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 20:24:21,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 20:24:21,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 20:24:21,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 20:24:21,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 20:24:21,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 20:24:21,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 20:24:21,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 20:24:21,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 20:24:22,000 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 [2019-09-16 20:24:22,013 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 20:24:22,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 20:24:22,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-16 20:24:22,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-16 20:24:22,015 INFO L138 SettingsManager]: * Use SBE=true [2019-09-16 20:24:22,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 20:24:22,016 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 20:24:22,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-16 20:24:22,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 20:24:22,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 20:24:22,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 20:24:22,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 20:24:22,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 20:24:22,017 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 20:24:22,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 20:24:22,017 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-16 20:24:22,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 20:24:22,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 20:24:22,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 20:24:22,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-16 20:24:22,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-16 20:24:22,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 20:24:22,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 20:24:22,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 20:24:22,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-16 20:24:22,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-16 20:24:22,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 20:24:22,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-16 20:24:22,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-16 20:24:22,060 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 20:24:22,073 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 20:24:22,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 20:24:22,078 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 20:24:22,078 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 20:24:22,079 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-16 20:24:22,137 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27447f2ca/374587e016c24fb0adc8d4d087e9a5c5/FLAG3b4284759 [2019-09-16 20:24:22,630 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 20:24:22,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-16 20:24:22,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27447f2ca/374587e016c24fb0adc8d4d087e9a5c5/FLAG3b4284759 [2019-09-16 20:24:23,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27447f2ca/374587e016c24fb0adc8d4d087e9a5c5 [2019-09-16 20:24:23,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 20:24:23,037 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 20:24:23,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 20:24:23,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 20:24:23,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 20:24:23,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 08:24:23" (1/1) ... [2019-09-16 20:24:23,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@587956a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:24:23, skipping insertion in model container [2019-09-16 20:24:23,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 08:24:23" (1/1) ... [2019-09-16 20:24:23,053 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 20:24:23,109 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 20:24:23,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 20:24:23,354 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 20:24:23,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 20:24:23,507 INFO L192 MainTranslator]: Completed translation [2019-09-16 20:24:23,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:24:23 WrapperNode [2019-09-16 20:24:23,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 20:24:23,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 20:24:23,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 20:24:23,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 20:24:23,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:24:23" (1/1) ... [2019-09-16 20:24:23,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:24:23" (1/1) ... [2019-09-16 20:24:23,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:24:23" (1/1) ... [2019-09-16 20:24:23,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:24:23" (1/1) ... [2019-09-16 20:24:23,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:24:23" (1/1) ... [2019-09-16 20:24:23,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:24:23" (1/1) ... [2019-09-16 20:24:23,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:24:23" (1/1) ... [2019-09-16 20:24:23,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 20:24:23,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 20:24:23,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 20:24:23,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 20:24:23,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:24:23" (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 [2019-09-16 20:24:23,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 20:24:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 20:24:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-16 20:24:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-16 20:24:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-16 20:24:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-16 20:24:23,610 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-16 20:24:23,610 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-16 20:24:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-16 20:24:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-16 20:24:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-16 20:24:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-16 20:24:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-16 20:24:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-16 20:24:23,612 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-09-16 20:24:23,612 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-09-16 20:24:23,612 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-16 20:24:23,612 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-16 20:24:23,612 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-16 20:24:23,612 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-16 20:24:23,613 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-16 20:24:23,613 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 20:24:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 20:24:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 20:24:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-16 20:24:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-16 20:24:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-16 20:24:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-16 20:24:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-16 20:24:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-16 20:24:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-16 20:24:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-16 20:24:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-16 20:24:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-16 20:24:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-16 20:24:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-16 20:24:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-09-16 20:24:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-09-16 20:24:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-16 20:24:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-16 20:24:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-16 20:24:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-16 20:24:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-16 20:24:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 20:24:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 20:24:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 20:24:24,131 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; [2019-09-16 20:24:24,131 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2019-09-16 20:24:24,418 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 20:24:24,418 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-16 20:24:24,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 08:24:24 BoogieIcfgContainer [2019-09-16 20:24:24,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 20:24:24,421 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-16 20:24:24,421 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-16 20:24:24,421 INFO L275 PluginConnector]: Sifa initialized [2019-09-16 20:24:24,422 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 08:24:24" (1/1) ... [2019-09-16 20:24:24,423 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 [2019-09-16 20:24:24,453 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-16 20:24:24,453 INFO L169 IcfgInterpreter]: Building call graph [2019-09-16 20:24:24,463 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-16 20:24:24,472 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-16 20:24:24,473 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-16 20:24:24,690 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 82 for LOIs [2019-09-16 20:24:24,794 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 80 for LOIs [2019-09-16 20:24:28,246 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-16 20:24:28,437 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-16 20:24:29,007 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2019-09-16 20:24:30,244 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-16 20:24:30,420 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-16 20:24:30,831 WARN L191 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2019-09-16 20:24:31,014 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-16 20:24:31,569 WARN L191 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2019-09-16 20:24:31,806 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-16 20:24:32,231 WARN L191 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2019-09-16 20:24:32,400 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-09-16 20:24:32,912 WARN L191 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2019-09-16 20:24:33,255 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-16 20:24:33,712 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-16 20:24:34,109 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2019-09-16 20:24:34,248 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-09-16 20:24:34,253 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 81 for LOIs [2019-09-16 20:24:34,602 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 94 [2019-09-16 20:24:34,744 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-09-16 20:24:35,083 WARN L191 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 94 [2019-09-16 20:24:35,237 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-09-16 20:24:35,727 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 104 [2019-09-16 20:24:35,955 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-09-16 20:24:36,469 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 98 [2019-09-16 20:24:37,083 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 104 [2019-09-16 20:24:37,368 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-09-16 20:24:37,703 WARN L191 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 79 [2019-09-16 20:24:37,837 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-09-16 20:24:38,210 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2019-09-16 20:24:38,370 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-16 20:24:38,647 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 85 [2019-09-16 20:24:38,764 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-16 20:24:39,002 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-16 20:24:39,112 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-16 20:24:39,333 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-16 20:24:39,823 WARN L191 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-16 20:24:39,983 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-16 20:24:40,340 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2019-09-16 20:24:40,707 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-16 20:24:40,862 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-16 20:24:41,166 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-16 20:24:41,319 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-16 20:24:41,650 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2019-09-16 20:24:41,820 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-16 20:24:42,063 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-16 20:24:42,582 WARN L191 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2019-09-16 20:24:42,807 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-16 20:24:42,813 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 51 for LOIs [2019-09-16 20:24:42,956 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2019-09-16 20:24:43,005 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 31 for LOIs [2019-09-16 20:24:43,097 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-16 20:24:43,097 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-16 20:24:43,100 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))) [2019-09-16 20:24:43,115 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-16 20:24:43,115 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-16 20:24:43,117 INFO L168 Benchmark]: Toolchain (without parser) took 20079.89 ms. Allocated memory was 137.9 MB in the beginning and 484.4 MB in the end (delta: 346.6 MB). Free memory was 85.4 MB in the beginning and 274.1 MB in the end (delta: -188.7 MB). Peak memory consumption was 157.8 MB. Max. memory is 7.1 GB. [2019-09-16 20:24:43,118 INFO L168 Benchmark]: CDTParser took 0.19 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. [2019-09-16 20:24:43,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 470.11 ms. Allocated memory was 137.9 MB in the beginning and 197.7 MB in the end (delta: 59.8 MB). Free memory was 85.2 MB in the beginning and 172.5 MB in the end (delta: -87.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-09-16 20:24:43,120 INFO L168 Benchmark]: Boogie Preprocessor took 46.47 ms. Allocated memory is still 197.7 MB. Free memory was 172.5 MB in the beginning and 170.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-09-16 20:24:43,121 INFO L168 Benchmark]: RCFGBuilder took 865.27 ms. Allocated memory is still 197.7 MB. Free memory was 170.6 MB in the beginning and 113.5 MB in the end (delta: 57.1 MB). Peak memory consumption was 57.1 MB. Max. memory is 7.1 GB. [2019-09-16 20:24:43,122 INFO L168 Benchmark]: Sifa took 18694.49 ms. Allocated memory was 197.7 MB in the beginning and 484.4 MB in the end (delta: 286.8 MB). Free memory was 113.5 MB in the beginning and 274.1 MB in the end (delta: -160.6 MB). Peak memory consumption was 126.2 MB. Max. memory is 7.1 GB. [2019-09-16 20:24:43,126 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 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 470.11 ms. Allocated memory was 137.9 MB in the beginning and 197.7 MB in the end (delta: 59.8 MB). Free memory was 85.2 MB in the beginning and 172.5 MB in the end (delta: -87.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.47 ms. Allocated memory is still 197.7 MB. Free memory was 172.5 MB in the beginning and 170.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 865.27 ms. Allocated memory is still 197.7 MB. Free memory was 170.6 MB in the beginning and 113.5 MB in the end (delta: 57.1 MB). Peak memory consumption was 57.1 MB. Max. memory is 7.1 GB. * Sifa took 18694.49 ms. Allocated memory was 197.7 MB in the beginning and 484.4 MB in the end (delta: 286.8 MB). Free memory was 113.5 MB in the beginning and 274.1 MB in the end (delta: -160.6 MB). Peak memory consumption was 126.2 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]: 18647, 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]: 264, TOOLS_POST_RETURN_APPLICATIONS: 75, TOOLS_POST_RETURN_TIME[ms]: 116, TOOLS_QUANTIFIERELIM_APPLICATIONS: 370, TOOLS_QUANTIFIERELIM_TIME[ms]: 366, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 15, FLUID_QUERY_TIME[ms]: 13, FLUID_QUERIES: 317, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 105, DOMAIN_JOIN_TIME[ms]: 16184, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 1593, DOMAIN_ISSUBSETEQ_APPLICATIONS: 7, DOMAIN_ISSUBSETEQ_TIME[ms]: 11, DOMAIN_ISBOTTOM_APPLICATIONS: 77, DOMAIN_ISBOTTOM_TIME[ms]: 202, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 14553, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 14551, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 7, CALL_SUMMARIZER_APPLICATIONS: 75, CALL_SUMMARIZER_CACHE_MISSES: 20, CALL_SUMMARIZER_OVERALL_TIME[ms]: 4363, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 4363, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 41, 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...