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 CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 07:08:10,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 07:08:10,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 07:08:10,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 07:08:10,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 07:08:10,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 07:08:10,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 07:08:10,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 07:08:10,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 07:08:10,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 07:08:10,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 07:08:10,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 07:08:10,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 07:08:10,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 07:08:10,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 07:08:10,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 07:08:10,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 07:08:10,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 07:08:10,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 07:08:10,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 07:08:10,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 07:08:10,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 07:08:10,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 07:08:10,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 07:08:10,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 07:08:10,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 07:08:10,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 07:08:10,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 07:08:10,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 07:08:10,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 07:08:10,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 07:08:10,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 07:08:10,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 07:08:10,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 07:08:10,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 07:08:10,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 07:08:10,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 07:08:10,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 07:08:10,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 07:08:10,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 07:08:10,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 07:08:10,134 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 [2019-10-15 07:08:10,167 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 07:08:10,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 07:08:10,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 07:08:10,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 07:08:10,169 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 07:08:10,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 07:08:10,170 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 07:08:10,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 07:08:10,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 07:08:10,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 07:08:10,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 07:08:10,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 07:08:10,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 07:08:10,171 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 07:08:10,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 07:08:10,171 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 07:08:10,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 07:08:10,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 07:08:10,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 07:08:10,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 07:08:10,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 07:08:10,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 07:08:10,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 07:08:10,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 07:08:10,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 07:08:10,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 07:08:10,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 07:08:10,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 07:08:10,174 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain 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: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 07:08:10,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 07:08:10,463 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 07:08:10,467 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 07:08:10,468 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 07:08:10,468 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 07:08:10,469 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c [2019-10-15 07:08:10,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c6de6a3e/04d241a6f64e4f46b7a8fea823d6c649/FLAG083db4949 [2019-10-15 07:08:11,016 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 07:08:11,017 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c [2019-10-15 07:08:11,025 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c6de6a3e/04d241a6f64e4f46b7a8fea823d6c649/FLAG083db4949 [2019-10-15 07:08:11,392 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c6de6a3e/04d241a6f64e4f46b7a8fea823d6c649 [2019-10-15 07:08:11,402 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 07:08:11,404 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 07:08:11,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 07:08:11,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 07:08:11,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 07:08:11,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:08:11" (1/1) ... [2019-10-15 07:08:11,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27396f35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:11, skipping insertion in model container [2019-10-15 07:08:11,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:08:11" (1/1) ... [2019-10-15 07:08:11,420 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 07:08:11,467 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 07:08:11,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 07:08:11,684 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 07:08:11,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 07:08:11,831 INFO L192 MainTranslator]: Completed translation [2019-10-15 07:08:11,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:11 WrapperNode [2019-10-15 07:08:11,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 07:08:11,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 07:08:11,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 07:08:11,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 07:08:11,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:11" (1/1) ... [2019-10-15 07:08:11,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:11" (1/1) ... [2019-10-15 07:08:11,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:11" (1/1) ... [2019-10-15 07:08:11,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:11" (1/1) ... [2019-10-15 07:08:11,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:11" (1/1) ... [2019-10-15 07:08:11,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:11" (1/1) ... [2019-10-15 07:08:11,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:11" (1/1) ... [2019-10-15 07:08:11,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 07:08:11,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 07:08:11,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 07:08:11,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 07:08:11,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:11" (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 [2019-10-15 07:08:11,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 07:08:11,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 07:08:11,937 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-10-15 07:08:11,938 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-10-15 07:08:11,938 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-10-15 07:08:11,938 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-10-15 07:08:11,938 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-10-15 07:08:11,938 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-10-15 07:08:11,938 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-10-15 07:08:11,939 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-10-15 07:08:11,939 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-10-15 07:08:11,939 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-10-15 07:08:11,939 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-10-15 07:08:11,939 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-10-15 07:08:11,940 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-10-15 07:08:11,940 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-10-15 07:08:11,940 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-10-15 07:08:11,940 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-10-15 07:08:11,940 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-10-15 07:08:11,940 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 07:08:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 07:08:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 07:08:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-10-15 07:08:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-10-15 07:08:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-10-15 07:08:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-10-15 07:08:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-10-15 07:08:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-10-15 07:08:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-10-15 07:08:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-10-15 07:08:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-10-15 07:08:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-10-15 07:08:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-10-15 07:08:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-10-15 07:08:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-10-15 07:08:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-10-15 07:08:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-10-15 07:08:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-10-15 07:08:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-10-15 07:08:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 07:08:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 07:08:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 07:08:12,684 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 07:08:12,684 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 07:08:12,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:08:12 BoogieIcfgContainer [2019-10-15 07:08:12,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 07:08:12,686 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-10-15 07:08:12,687 INFO L271 PluginConnector]: Initializing Sifa... [2019-10-15 07:08:12,687 INFO L275 PluginConnector]: Sifa initialized [2019-10-15 07:08:12,688 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:08:12" (1/1) ... [2019-10-15 07:08:12,688 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=CompoundDomain ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-10-15 07:08:12,712 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-10-15 07:08:12,712 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 07:08:12,721 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 07:08:12,730 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 07:08:12,731 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 07:08:13,045 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 82 for LOIs [2019-10-15 07:08:13,118 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 80 for LOIs [2019-10-15 07:08:14,430 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 46 for LOIs [2019-10-15 07:08:14,739 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 32 for LOIs [2019-10-15 07:08:14,927 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 34 for LOIs [2019-10-15 07:08:14,946 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 07:08:14,966 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-10-15 07:08:14,967 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-10-15 07:08:14,972 INFO L168 Benchmark]: Toolchain (without parser) took 3564.49 ms. Allocated memory was 146.8 MB in the beginning and 281.0 MB in the end (delta: 134.2 MB). Free memory was 104.7 MB in the beginning and 240.5 MB in the end (delta: -135.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 07:08:14,974 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 07:08:14,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 426.63 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 104.3 MB in the beginning and 180.9 MB in the end (delta: -76.7 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-10-15 07:08:14,978 INFO L168 Benchmark]: Boogie Preprocessor took 47.08 ms. Allocated memory is still 203.4 MB. Free memory was 180.9 MB in the beginning and 178.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-10-15 07:08:14,979 INFO L168 Benchmark]: RCFGBuilder took 806.16 ms. Allocated memory is still 203.4 MB. Free memory was 178.4 MB in the beginning and 129.3 MB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. [2019-10-15 07:08:14,985 INFO L168 Benchmark]: Sifa took 2280.40 ms. Allocated memory was 203.4 MB in the beginning and 281.0 MB in the end (delta: 77.6 MB). Free memory was 129.3 MB in the beginning and 240.5 MB in the end (delta: -111.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 07:08:14,996 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 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 426.63 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 104.3 MB in the beginning and 180.9 MB in the end (delta: -76.7 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.08 ms. Allocated memory is still 203.4 MB. Free memory was 180.9 MB in the beginning and 178.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 806.16 ms. Allocated memory is still 203.4 MB. Free memory was 178.4 MB in the beginning and 129.3 MB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. * Sifa took 2280.40 ms. Allocated memory was 203.4 MB in the beginning and 281.0 MB in the end (delta: 77.6 MB). Free memory was 129.3 MB in the beginning and 240.5 MB in the end (delta: -111.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 2235, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 325, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 232, TOOLS_POST_TIME[ms]: 86, TOOLS_POST_CALL_APPLICATIONS: 69, TOOLS_POST_CALL_TIME[ms]: 211, TOOLS_POST_RETURN_APPLICATIONS: 63, TOOLS_POST_RETURN_TIME[ms]: 118, TOOLS_QUANTIFIERELIM_APPLICATIONS: 364, TOOLS_QUANTIFIERELIM_TIME[ms]: 293, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 22, FLUID_QUERY_TIME[ms]: 13, FLUID_QUERIES: 337, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 120, DOMAIN_JOIN_TIME[ms]: 1482, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 58, DOMAIN_ISSUBSETEQ_APPLICATIONS: 12, DOMAIN_ISSUBSETEQ_TIME[ms]: 16, DOMAIN_ISBOTTOM_APPLICATIONS: 81, DOMAIN_ISBOTTOM_TIME[ms]: 99, LOOP_SUMMARIZER_APPLICATIONS: 10, LOOP_SUMMARIZER_CACHE_MISSES: 10, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 1053, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1052, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 12, CALL_SUMMARIZER_APPLICATIONS: 63, CALL_SUMMARIZER_CACHE_MISSES: 18, CALL_SUMMARIZER_OVERALL_TIME[ms]: 1166, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1165, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 8, PATH_EXPR_TIME[ms]: 9, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 39, DAG_COMPRESSION_PROCESSED_NODES: 457, DAG_COMPRESSION_RETAINED_NODES: 209 - UnprovableResult [Line: 10]: 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 1023#(and (or (and (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0) (= ~c_dr_i~0 1) (<= 1 ~c_dr_i~0) (<= ~c_dr_i~0 1) (<= 1 ~c_dr_st~0) (<= 1 ~q_req_up~0) (= 1 ~q_req_up~0) (<= ~q_free~0 1) (<= ~q_req_up~0 1) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (= ~p_dw_i~0 1) (not (= ~c_last_read~0 ~p_last_write~0))) (and (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0) (not (= ~c_num_read~0 ~p_num_write~0)) (= ~c_dr_i~0 1) (<= 1 ~c_dr_i~0) (<= ~c_dr_i~0 1) (<= 1 ~c_dr_st~0) (<= 1 ~q_req_up~0) (= 1 ~q_req_up~0) (<= ~q_free~0 1) (<= ~q_req_up~0 1) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (= ~p_dw_i~0 1))) (<= ~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...