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-fea9116 [2019-09-20 14:25:39,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 14:25:39,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 14:25:39,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 14:25:39,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 14:25:39,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 14:25:39,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 14:25:39,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 14:25:39,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 14:25:39,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 14:25:39,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 14:25:39,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 14:25:39,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 14:25:39,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 14:25:39,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 14:25:39,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 14:25:39,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 14:25:39,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 14:25:39,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 14:25:39,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 14:25:39,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 14:25:39,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 14:25:39,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 14:25:39,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 14:25:39,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 14:25:39,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 14:25:39,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 14:25:39,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 14:25:39,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 14:25:39,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 14:25:39,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 14:25:39,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 14:25:39,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 14:25:39,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 14:25:39,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 14:25:39,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 14:25:39,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 14:25:39,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 14:25:39,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 14:25:39,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 14:25:39,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 14:25:39,878 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 14:25:39,892 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 14:25:39,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 14:25:39,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 14:25:39,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 14:25:39,894 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 14:25:39,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 14:25:39,895 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 14:25:39,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 14:25:39,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 14:25:39,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 14:25:39,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 14:25:39,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 14:25:39,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 14:25:39,896 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 14:25:39,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 14:25:39,896 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 14:25:39,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 14:25:39,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 14:25:39,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 14:25:39,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 14:25:39,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 14:25:39,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 14:25:39,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 14:25:39,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 14:25:39,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 14:25:39,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 14:25:39,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 14:25:39,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 14:25:39,899 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 [2019-09-20 14:25:39,945 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 14:25:39,958 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 14:25:39,962 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 14:25:39,963 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 14:25:39,964 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 14:25:39,964 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-20 14:25:40,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd5b4536d/cac053f14e574d9f90a8d507f0caf582/FLAG8348e67eb [2019-09-20 14:25:40,513 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 14:25:40,514 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-09-20 14:25:40,532 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd5b4536d/cac053f14e574d9f90a8d507f0caf582/FLAG8348e67eb [2019-09-20 14:25:40,865 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd5b4536d/cac053f14e574d9f90a8d507f0caf582 [2019-09-20 14:25:40,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 14:25:40,876 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 14:25:40,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 14:25:40,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 14:25:40,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 14:25:40,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:25:40" (1/1) ... [2019-09-20 14:25:40,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62fe4094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:40, skipping insertion in model container [2019-09-20 14:25:40,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:25:40" (1/1) ... [2019-09-20 14:25:40,893 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 14:25:40,927 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 14:25:41,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 14:25:41,180 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 14:25:41,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 14:25:41,352 INFO L192 MainTranslator]: Completed translation [2019-09-20 14:25:41,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:41 WrapperNode [2019-09-20 14:25:41,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 14:25:41,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 14:25:41,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 14:25:41,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 14:25:41,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:41" (1/1) ... [2019-09-20 14:25:41,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:41" (1/1) ... [2019-09-20 14:25:41,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:41" (1/1) ... [2019-09-20 14:25:41,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:41" (1/1) ... [2019-09-20 14:25:41,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:41" (1/1) ... [2019-09-20 14:25:41,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:41" (1/1) ... [2019-09-20 14:25:41,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:41" (1/1) ... [2019-09-20 14:25:41,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 14:25:41,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 14:25:41,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 14:25:41,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 14:25:41,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:41" (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 14:25:41,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 14:25:41,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 14:25:41,473 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-20 14:25:41,473 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-20 14:25:41,473 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-20 14:25:41,473 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-20 14:25:41,474 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-20 14:25:41,474 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-20 14:25:41,474 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-20 14:25:41,474 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-20 14:25:41,474 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-20 14:25:41,474 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-20 14:25:41,475 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-20 14:25:41,475 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-20 14:25:41,475 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-09-20 14:25:41,475 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-09-20 14:25:41,475 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-20 14:25:41,475 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-20 14:25:41,476 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-20 14:25:41,476 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-20 14:25:41,476 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-20 14:25:41,476 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 14:25:41,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 14:25:41,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 14:25:41,477 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-20 14:25:41,477 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-20 14:25:41,477 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-20 14:25:41,477 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-20 14:25:41,477 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-20 14:25:41,477 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-20 14:25:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-20 14:25:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-20 14:25:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-20 14:25:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-20 14:25:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-20 14:25:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-20 14:25:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-09-20 14:25:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-09-20 14:25:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-20 14:25:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-20 14:25:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-20 14:25:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-20 14:25:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-20 14:25:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 14:25:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 14:25:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 14:25:42,058 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 14:25:42,058 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2019-09-20 14:25:42,343 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 14:25:42,343 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 14:25:42,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:25:42 BoogieIcfgContainer [2019-09-20 14:25:42,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 14:25:42,345 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 14:25:42,345 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 14:25:42,346 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 14:25:42,347 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:25:42" (1/1) ... [2019-09-20 14:25:42,347 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-20 14:25:42,370 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 14:25:42,371 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 14:25:42,380 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 14:25:42,390 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 14:25:42,391 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 14:25:42,604 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 82 for LOIs [2019-09-20 14:25:42,722 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 80 for LOIs [2019-09-20 14:25:44,109 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 27 [2019-09-20 14:25:46,310 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-20 14:25:46,521 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 14:25:47,142 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2019-09-20 14:25:47,797 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2019-09-20 14:25:48,454 WARN L191 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-20 14:25:48,638 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-20 14:25:49,030 WARN L191 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2019-09-20 14:25:49,217 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 14:25:49,783 WARN L191 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2019-09-20 14:25:50,071 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-20 14:25:50,490 WARN L191 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2019-09-20 14:25:50,665 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-09-20 14:25:51,197 WARN L191 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2019-09-20 14:25:51,548 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-20 14:25:52,005 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-20 14:25:52,422 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2019-09-20 14:25:52,565 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-09-20 14:25:52,570 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 81 for LOIs [2019-09-20 14:25:52,941 WARN L191 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 94 [2019-09-20 14:25:53,105 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-09-20 14:25:53,472 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 94 [2019-09-20 14:25:53,621 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-09-20 14:25:54,086 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 104 [2019-09-20 14:25:54,333 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-09-20 14:25:54,829 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 98 [2019-09-20 14:25:55,484 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 104 [2019-09-20 14:25:55,764 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-09-20 14:25:56,122 WARN L191 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 79 [2019-09-20 14:25:56,248 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-09-20 14:25:56,594 WARN L191 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2019-09-20 14:25:56,761 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 14:25:57,051 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 85 [2019-09-20 14:25:57,173 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 14:25:57,471 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-20 14:25:57,575 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 14:25:57,806 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-20 14:25:58,284 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-20 14:25:58,447 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 14:25:58,791 WARN L191 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2019-09-20 14:25:59,162 WARN L191 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-20 14:25:59,323 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 14:25:59,645 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-20 14:25:59,799 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 14:26:00,142 WARN L191 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2019-09-20 14:26:00,312 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 14:26:00,572 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-20 14:26:00,674 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 14:26:01,129 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2019-09-20 14:26:01,327 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 14:26:01,331 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 51 for LOIs [2019-09-20 14:26:01,462 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2019-09-20 14:26:01,505 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 31 for LOIs [2019-09-20 14:26:01,594 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 14:26:01,594 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 14:26:01,597 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 14:26:01,622 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 14:26:01,623 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 14:26:01,625 INFO L168 Benchmark]: Toolchain (without parser) took 20748.57 ms. Allocated memory was 131.1 MB in the beginning and 478.7 MB in the end (delta: 347.6 MB). Free memory was 86.5 MB in the beginning and 112.7 MB in the end (delta: -26.1 MB). Peak memory consumption was 321.5 MB. Max. memory is 7.1 GB. [2019-09-20 14:26:01,626 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 14:26:01,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.68 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 86.3 MB in the beginning and 173.0 MB in the end (delta: -86.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-09-20 14:26:01,628 INFO L168 Benchmark]: Boogie Preprocessor took 57.90 ms. Allocated memory is still 198.7 MB. Free memory was 173.0 MB in the beginning and 170.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-09-20 14:26:01,629 INFO L168 Benchmark]: RCFGBuilder took 929.78 ms. Allocated memory is still 198.7 MB. Free memory was 170.5 MB in the beginning and 112.6 MB in the end (delta: 57.9 MB). Peak memory consumption was 57.9 MB. Max. memory is 7.1 GB. [2019-09-20 14:26:01,630 INFO L168 Benchmark]: Sifa took 19277.60 ms. Allocated memory was 198.7 MB in the beginning and 478.7 MB in the end (delta: 280.0 MB). Free memory was 112.6 MB in the beginning and 112.7 MB in the end (delta: -114.7 kB). Peak memory consumption was 279.9 MB. Max. memory is 7.1 GB. [2019-09-20 14:26:01,634 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 475.68 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 86.3 MB in the beginning and 173.0 MB in the end (delta: -86.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.90 ms. Allocated memory is still 198.7 MB. Free memory was 173.0 MB in the beginning and 170.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 929.78 ms. Allocated memory is still 198.7 MB. Free memory was 170.5 MB in the beginning and 112.6 MB in the end (delta: 57.9 MB). Peak memory consumption was 57.9 MB. Max. memory is 7.1 GB. * Sifa took 19277.60 ms. Allocated memory was 198.7 MB in the beginning and 478.7 MB in the end (delta: 280.0 MB). Free memory was 112.6 MB in the beginning and 112.7 MB in the end (delta: -114.7 kB). Peak memory consumption was 279.9 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]: 19227, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 310, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 214, TOOLS_POST_TIME[ms]: 116, TOOLS_POST_CALL_APPLICATIONS: 81, TOOLS_POST_CALL_TIME[ms]: 262, TOOLS_POST_RETURN_APPLICATIONS: 75, TOOLS_POST_RETURN_TIME[ms]: 122, TOOLS_QUANTIFIERELIM_APPLICATIONS: 370, TOOLS_QUANTIFIERELIM_TIME[ms]: 363, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 17, FLUID_QUERY_TIME[ms]: 13, FLUID_QUERIES: 317, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 105, DOMAIN_JOIN_TIME[ms]: 16739, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 1621, DOMAIN_ISSUBSETEQ_APPLICATIONS: 7, DOMAIN_ISSUBSETEQ_TIME[ms]: 12, DOMAIN_ISBOTTOM_APPLICATIONS: 77, DOMAIN_ISBOTTOM_TIME[ms]: 188, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 15034, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 15033, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 7, CALL_SUMMARIZER_APPLICATIONS: 75, CALL_SUMMARIZER_CACHE_MISSES: 20, CALL_SUMMARIZER_OVERALL_TIME[ms]: 4589, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 4588, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 44, 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...