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_2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 14:25:25,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 14:25:25,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 14:25:26,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 14:25:26,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 14:25:26,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 14:25:26,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 14:25:26,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 14:25:26,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 14:25:26,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 14:25:26,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 14:25:26,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 14:25:26,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 14:25:26,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 14:25:26,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 14:25:26,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 14:25:26,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 14:25:26,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 14:25:26,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 14:25:26,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 14:25:26,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 14:25:26,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 14:25:26,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 14:25:26,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 14:25:26,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 14:25:26,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 14:25:26,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 14:25:26,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 14:25:26,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 14:25:26,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 14:25:26,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 14:25:26,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 14:25:26,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 14:25:26,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 14:25:26,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 14:25:26,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 14:25:26,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 14:25:26,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 14:25:26,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 14:25:26,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 14:25:26,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 14:25:26,042 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 14:25:26,056 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 14:25:26,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 14:25:26,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 14:25:26,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 14:25:26,058 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 14:25:26,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 14:25:26,059 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 14:25:26,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 14:25:26,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 14:25:26,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 14:25:26,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 14:25:26,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 14:25:26,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 14:25:26,060 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 14:25:26,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 14:25:26,060 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 14:25:26,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 14:25:26,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 14:25:26,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 14:25:26,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 14:25:26,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 14:25:26,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 14:25:26,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 14:25:26,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 14:25:26,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 14:25:26,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 14:25:26,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 14:25:26,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 14:25:26,063 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 14:25:26,112 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 14:25:26,124 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 14:25:26,128 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 14:25:26,129 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 14:25:26,130 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 14:25:26,131 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c [2019-09-20 14:25:26,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8ac8737b/88c5002d1f814623a10568d8d7eddef7/FLAG144fa27e9 [2019-09-20 14:25:26,685 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 14:25:26,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c [2019-09-20 14:25:26,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8ac8737b/88c5002d1f814623a10568d8d7eddef7/FLAG144fa27e9 [2019-09-20 14:25:27,009 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8ac8737b/88c5002d1f814623a10568d8d7eddef7 [2019-09-20 14:25:27,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 14:25:27,026 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 14:25:27,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 14:25:27,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 14:25:27,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 14:25:27,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:25:27" (1/1) ... [2019-09-20 14:25:27,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bfbc2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:27, skipping insertion in model container [2019-09-20 14:25:27,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:25:27" (1/1) ... [2019-09-20 14:25:27,042 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 14:25:27,096 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 14:25:27,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 14:25:27,329 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 14:25:27,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 14:25:27,486 INFO L192 MainTranslator]: Completed translation [2019-09-20 14:25:27,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:27 WrapperNode [2019-09-20 14:25:27,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 14:25:27,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 14:25:27,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 14:25:27,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 14:25:27,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:27" (1/1) ... [2019-09-20 14:25:27,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:27" (1/1) ... [2019-09-20 14:25:27,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:27" (1/1) ... [2019-09-20 14:25:27,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:27" (1/1) ... [2019-09-20 14:25:27,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:27" (1/1) ... [2019-09-20 14:25:27,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:27" (1/1) ... [2019-09-20 14:25:27,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:27" (1/1) ... [2019-09-20 14:25:27,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 14:25:27,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 14:25:27,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 14:25:27,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 14:25:27,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:27" (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 14:25:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 14:25:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 14:25:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-20 14:25:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-20 14:25:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-20 14:25:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-20 14:25:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-20 14:25:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-20 14:25:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-20 14:25:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-20 14:25:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-20 14:25:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-20 14:25:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-20 14:25:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-20 14:25:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-20 14:25:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-20 14:25:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-20 14:25:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-20 14:25:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-20 14:25:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 14:25:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 14:25:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 14:25:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-20 14:25:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-20 14:25:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-20 14:25:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-20 14:25:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-20 14:25:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-20 14:25:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-20 14:25:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-20 14:25:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-20 14:25:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-20 14:25:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-20 14:25:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-20 14:25:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-20 14:25:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-20 14:25:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-20 14:25:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-20 14:25:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-20 14:25:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 14:25:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 14:25:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 14:25:28,296 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 14:25:28,297 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 14:25:28,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:25:28 BoogieIcfgContainer [2019-09-20 14:25:28,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 14:25:28,299 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 14:25:28,299 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 14:25:28,300 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 14:25:28,301 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:25:28" (1/1) ... [2019-09-20 14:25:28,302 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 14:25:28,327 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 14:25:28,327 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 14:25:28,337 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 14:25:28,347 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 14:25:28,349 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 14:25:28,528 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 70 for LOIs [2019-09-20 14:25:28,621 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 68 for LOIs [2019-09-20 14:25:29,237 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2019-09-20 14:25:32,376 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-20 14:25:32,857 WARN L191 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2019-09-20 14:25:33,061 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-09-20 14:25:33,069 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 66 for LOIs [2019-09-20 14:25:33,411 WARN L191 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-20 14:25:33,556 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2019-09-20 14:25:33,882 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-20 14:25:34,050 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2019-09-20 14:25:34,500 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2019-09-20 14:25:34,955 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2019-09-20 14:25:35,805 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 24 for LOIs [2019-09-20 14:25:35,911 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2019-09-20 14:25:36,031 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2019-09-20 14:25:36,183 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2019-09-20 14:25:36,345 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2019-09-20 14:25:36,685 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-20 14:25:37,110 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-20 14:25:37,288 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 18 for LOIs [2019-09-20 14:25:37,327 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 14:25:37,327 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 14:25:37,330 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 683#(or (and (= 1 ~q_req_up~0) (not (= ~c_num_read~0 ~p_num_write~0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (and (= 1 ~q_req_up~0) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (not (= ~c_last_read~0 ~p_last_write~0)))) [2019-09-20 14:25:37,345 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 14:25:37,345 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 14:25:37,347 INFO L168 Benchmark]: Toolchain (without parser) took 10321.43 ms. Allocated memory was 138.9 MB in the beginning and 358.1 MB in the end (delta: 219.2 MB). Free memory was 86.9 MB in the beginning and 134.4 MB in the end (delta: -47.5 MB). Peak memory consumption was 171.7 MB. Max. memory is 7.1 GB. [2019-09-20 14:25:37,348 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory is still 104.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 14:25:37,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.96 ms. Allocated memory was 138.9 MB in the beginning and 198.7 MB in the end (delta: 59.8 MB). Free memory was 86.9 MB in the beginning and 174.5 MB in the end (delta: -87.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2019-09-20 14:25:37,350 INFO L168 Benchmark]: Boogie Preprocessor took 47.00 ms. Allocated memory is still 198.7 MB. Free memory was 174.5 MB in the beginning and 172.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-09-20 14:25:37,351 INFO L168 Benchmark]: RCFGBuilder took 761.83 ms. Allocated memory is still 198.7 MB. Free memory was 172.7 MB in the beginning and 123.1 MB in the end (delta: 49.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 7.1 GB. [2019-09-20 14:25:37,351 INFO L168 Benchmark]: Sifa took 9046.28 ms. Allocated memory was 198.7 MB in the beginning and 358.1 MB in the end (delta: 159.4 MB). Free memory was 123.1 MB in the beginning and 134.4 MB in the end (delta: -11.3 MB). Peak memory consumption was 148.1 MB. Max. memory is 7.1 GB. [2019-09-20 14:25:37,355 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 138.9 MB. Free memory is still 104.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 459.96 ms. Allocated memory was 138.9 MB in the beginning and 198.7 MB in the end (delta: 59.8 MB). Free memory was 86.9 MB in the beginning and 174.5 MB in the end (delta: -87.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.00 ms. Allocated memory is still 198.7 MB. Free memory was 174.5 MB in the beginning and 172.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 761.83 ms. Allocated memory is still 198.7 MB. Free memory was 172.7 MB in the beginning and 123.1 MB in the end (delta: 49.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 7.1 GB. * Sifa took 9046.28 ms. Allocated memory was 198.7 MB in the beginning and 358.1 MB in the end (delta: 159.4 MB). Free memory was 123.1 MB in the beginning and 134.4 MB in the end (delta: -11.3 MB). Peak memory consumption was 148.1 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]: 9004, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 334, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 241, TOOLS_POST_TIME[ms]: 98, TOOLS_POST_CALL_APPLICATIONS: 67, TOOLS_POST_CALL_TIME[ms]: 200, TOOLS_POST_RETURN_APPLICATIONS: 61, TOOLS_POST_RETURN_TIME[ms]: 78, TOOLS_QUANTIFIERELIM_APPLICATIONS: 369, TOOLS_QUANTIFIERELIM_TIME[ms]: 276, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 16, FLUID_QUERY_TIME[ms]: 18, FLUID_QUERIES: 347, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 129, DOMAIN_JOIN_TIME[ms]: 7804, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 476, DOMAIN_ISSUBSETEQ_APPLICATIONS: 13, DOMAIN_ISSUBSETEQ_TIME[ms]: 19, DOMAIN_ISBOTTOM_APPLICATIONS: 85, DOMAIN_ISBOTTOM_TIME[ms]: 143, LOOP_SUMMARIZER_APPLICATIONS: 10, LOOP_SUMMARIZER_CACHE_MISSES: 10, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 5695, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 5694, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 13, CALL_SUMMARIZER_APPLICATIONS: 61, CALL_SUMMARIZER_CACHE_MISSES: 18, CALL_SUMMARIZER_OVERALL_TIME[ms]: 3594, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 3593, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 10, PATH_EXPR_TIME[ms]: 11, REGEX_TO_DAG_TIME[ms]: 11, DAG_COMPRESSION_TIME[ms]: 42, 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 683#(or (and (= 1 ~q_req_up~0) (not (= ~c_num_read~0 ~p_num_write~0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (and (= 1 ~q_req_up~0) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (not (= ~c_last_read~0 ~p_last_write~0)))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...