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 ReUseSupersetCallSummarizer --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-efa34d5 [2019-09-19 00:38:29,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-19 00:38:29,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-19 00:38:29,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-19 00:38:29,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-19 00:38:29,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-19 00:38:29,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-19 00:38:29,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-19 00:38:29,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-19 00:38:29,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-19 00:38:29,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-19 00:38:29,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-19 00:38:29,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-19 00:38:29,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-19 00:38:29,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-19 00:38:29,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-19 00:38:29,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-19 00:38:29,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-19 00:38:29,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-19 00:38:29,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-19 00:38:29,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-19 00:38:29,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-19 00:38:29,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-19 00:38:29,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-19 00:38:29,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-19 00:38:29,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-19 00:38:29,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-19 00:38:29,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-19 00:38:29,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-19 00:38:29,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-19 00:38:29,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-19 00:38:29,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-19 00:38:29,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-19 00:38:29,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-19 00:38:29,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-19 00:38:29,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-19 00:38:29,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-19 00:38:29,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-19 00:38:29,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-19 00:38:29,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-19 00:38:29,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-19 00:38:29,848 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 [2019-09-19 00:38:29,870 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-19 00:38:29,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-19 00:38:29,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-19 00:38:29,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-19 00:38:29,873 INFO L138 SettingsManager]: * Use SBE=true [2019-09-19 00:38:29,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-19 00:38:29,874 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-19 00:38:29,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-19 00:38:29,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-19 00:38:29,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-19 00:38:29,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-19 00:38:29,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-19 00:38:29,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-19 00:38:29,876 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-19 00:38:29,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-19 00:38:29,877 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-19 00:38:29,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-19 00:38:29,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-19 00:38:29,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-19 00:38:29,877 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-19 00:38:29,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-19 00:38:29,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-19 00:38:29,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-19 00:38:29,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-19 00:38:29,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-19 00:38:29,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-19 00:38:29,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-19 00:38:29,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-19 00:38:29,880 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 -> ReUseSupersetCallSummarizer 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 [2019-09-19 00:38:29,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-19 00:38:29,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-19 00:38:29,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-19 00:38:29,937 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-19 00:38:29,937 INFO L275 PluginConnector]: CDTParser initialized [2019-09-19 00:38:29,938 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c [2019-09-19 00:38:30,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebe00f234/0030f555f3074df8b8c6718edc78213c/FLAG6bab80bc5 [2019-09-19 00:38:30,524 INFO L306 CDTParser]: Found 1 translation units. [2019-09-19 00:38:30,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c [2019-09-19 00:38:30,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebe00f234/0030f555f3074df8b8c6718edc78213c/FLAG6bab80bc5 [2019-09-19 00:38:30,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebe00f234/0030f555f3074df8b8c6718edc78213c [2019-09-19 00:38:30,911 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-19 00:38:30,913 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-19 00:38:30,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-19 00:38:30,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-19 00:38:30,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-19 00:38:30,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:38:30" (1/1) ... [2019-09-19 00:38:30,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1928fa6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:38:30, skipping insertion in model container [2019-09-19 00:38:30,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:38:30" (1/1) ... [2019-09-19 00:38:30,929 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-19 00:38:30,958 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-19 00:38:31,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-19 00:38:31,173 INFO L188 MainTranslator]: Completed pre-run [2019-09-19 00:38:31,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-19 00:38:31,352 INFO L192 MainTranslator]: Completed translation [2019-09-19 00:38:31,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:38:31 WrapperNode [2019-09-19 00:38:31,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-19 00:38:31,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-19 00:38:31,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-19 00:38:31,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-19 00:38:31,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:38:31" (1/1) ... [2019-09-19 00:38:31,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:38:31" (1/1) ... [2019-09-19 00:38:31,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:38:31" (1/1) ... [2019-09-19 00:38:31,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:38:31" (1/1) ... [2019-09-19 00:38:31,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:38:31" (1/1) ... [2019-09-19 00:38:31,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:38:31" (1/1) ... [2019-09-19 00:38:31,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:38:31" (1/1) ... [2019-09-19 00:38:31,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-19 00:38:31,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-19 00:38:31,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-19 00:38:31,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-19 00:38:31,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:38:31" (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 [2019-09-19 00:38:31,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-19 00:38:31,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-19 00:38:31,462 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-19 00:38:31,462 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-19 00:38:31,462 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-19 00:38:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-19 00:38:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-19 00:38:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-19 00:38:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-19 00:38:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-19 00:38:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-19 00:38:31,464 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-19 00:38:31,464 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-19 00:38:31,464 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-19 00:38:31,464 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-19 00:38:31,464 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-19 00:38:31,464 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-19 00:38:31,465 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-19 00:38:31,465 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-19 00:38:31,465 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-19 00:38:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-19 00:38:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-19 00:38:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-19 00:38:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-19 00:38:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-19 00:38:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-19 00:38:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-19 00:38:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-19 00:38:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-19 00:38:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-19 00:38:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-19 00:38:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-19 00:38:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-19 00:38:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-19 00:38:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-19 00:38:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-19 00:38:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-19 00:38:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-19 00:38:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-19 00:38:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-19 00:38:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-19 00:38:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-19 00:38:32,174 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-19 00:38:32,174 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-19 00:38:32,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:38:32 BoogieIcfgContainer [2019-09-19 00:38:32,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-19 00:38:32,178 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-19 00:38:32,178 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-19 00:38:32,178 INFO L275 PluginConnector]: Sifa initialized [2019-09-19 00:38:32,180 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:38:32" (1/1) ... [2019-09-19 00:38:32,180 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=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-19 00:38:32,208 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-19 00:38:32,209 INFO L169 IcfgInterpreter]: Building call graph [2019-09-19 00:38:32,220 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-19 00:38:32,233 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-19 00:38:32,235 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-19 00:38:32,410 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 70 for LOIs [2019-09-19 00:38:32,618 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 68 for LOIs [2019-09-19 00:38:32,773 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-09-19 00:38:33,046 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2019-09-19 00:38:33,210 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2019-09-19 00:38:33,653 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 46 [2019-09-19 00:38:33,827 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2019-09-19 00:38:34,195 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-19 00:38:34,571 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-19 00:38:34,721 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-09-19 00:38:34,851 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-19 00:38:35,186 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-19 00:38:35,325 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-09-19 00:38:35,458 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-19 00:38:35,861 WARN L191 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-19 00:38:36,027 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-09-19 00:38:36,182 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-19 00:38:36,412 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-19 00:38:37,113 WARN L191 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-19 00:38:37,329 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-09-19 00:38:37,869 WARN L191 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-19 00:38:38,087 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-09-19 00:38:38,319 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2019-09-19 00:38:38,574 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2019-09-19 00:38:38,976 WARN L191 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2019-09-19 00:38:39,173 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-19 00:38:39,388 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2019-09-19 00:38:39,647 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2019-09-19 00:38:39,984 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-19 00:38:40,104 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2019-09-19 00:38:40,230 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2019-09-19 00:38:40,344 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2019-09-19 00:38:41,278 WARN L191 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2019-09-19 00:38:41,685 WARN L191 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-19 00:38:42,536 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2019-09-19 00:38:42,951 WARN L191 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-19 00:38:43,390 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-19 00:38:43,803 WARN L191 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-19 00:38:44,647 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2019-09-19 00:38:45,324 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-09-19 00:38:45,520 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-09-19 00:38:45,713 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-09-19 00:38:45,932 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-19 00:38:46,269 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-19 00:38:47,383 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-19 00:38:48,329 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2019-09-19 00:38:48,980 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-19 00:38:49,454 WARN L191 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2019-09-19 00:38:49,735 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2019-09-19 00:38:50,331 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2019-09-19 00:38:50,773 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 56 [2019-09-19 00:38:50,885 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-09-19 00:38:51,013 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-09-19 00:38:51,140 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-09-19 00:38:51,527 WARN L191 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 73 [2019-09-19 00:38:51,673 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-19 00:38:52,131 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 57 [2019-09-19 00:38:52,255 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-09-19 00:38:52,670 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 56 [2019-09-19 00:38:53,869 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 85 [2019-09-19 00:38:54,948 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 76 [2019-09-19 00:38:55,196 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 78 [2019-09-19 00:38:55,672 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-19 00:38:55,821 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-09-19 00:38:56,354 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 79 [2019-09-19 00:38:56,476 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-09-19 00:38:57,272 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 92 [2019-09-19 00:38:57,457 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-19 00:38:57,463 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 74 for LOIs [2019-09-19 00:38:57,888 WARN L191 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2019-09-19 00:38:58,054 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-19 00:38:58,422 WARN L191 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2019-09-19 00:38:58,586 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-19 00:38:59,035 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2019-09-19 00:38:59,480 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2019-09-19 00:38:59,768 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-19 00:39:00,481 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 24 for LOIs [2019-09-19 00:39:01,325 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-19 00:39:01,709 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-19 00:39:01,866 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 18 for LOIs [2019-09-19 00:39:01,895 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-19 00:39:01,896 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-19 00:39:01,898 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 959#(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)))) [2019-09-19 00:39:01,910 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-19 00:39:01,911 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-19 00:39:01,912 INFO L168 Benchmark]: Toolchain (without parser) took 30999.40 ms. Allocated memory was 134.7 MB in the beginning and 455.1 MB in the end (delta: 320.3 MB). Free memory was 90.9 MB in the beginning and 124.9 MB in the end (delta: -34.0 MB). Peak memory consumption was 286.3 MB. Max. memory is 7.1 GB. [2019-09-19 00:39:01,913 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 134.7 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-19 00:39:01,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.23 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 90.5 MB in the beginning and 175.7 MB in the end (delta: -85.2 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2019-09-19 00:39:01,915 INFO L168 Benchmark]: Boogie Preprocessor took 41.46 ms. Allocated memory is still 200.8 MB. Free memory was 175.7 MB in the beginning and 173.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-09-19 00:39:01,916 INFO L168 Benchmark]: RCFGBuilder took 782.03 ms. Allocated memory is still 200.8 MB. Free memory was 173.9 MB in the beginning and 125.4 MB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. [2019-09-19 00:39:01,917 INFO L168 Benchmark]: Sifa took 29733.02 ms. Allocated memory was 200.8 MB in the beginning and 455.1 MB in the end (delta: 254.3 MB). Free memory was 125.4 MB in the beginning and 124.9 MB in the end (delta: 468.9 kB). Peak memory consumption was 254.2 MB. Max. memory is 7.1 GB. [2019-09-19 00:39:01,920 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 134.7 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 439.23 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 90.5 MB in the beginning and 175.7 MB in the end (delta: -85.2 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.46 ms. Allocated memory is still 200.8 MB. Free memory was 175.7 MB in the beginning and 173.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 782.03 ms. Allocated memory is still 200.8 MB. Free memory was 173.9 MB in the beginning and 125.4 MB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. * Sifa took 29733.02 ms. Allocated memory was 200.8 MB in the beginning and 455.1 MB in the end (delta: 254.3 MB). Free memory was 125.4 MB in the beginning and 124.9 MB in the end (delta: 468.9 kB). Peak memory consumption was 254.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 29689, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 443, DAG_INTERPRETER_EARLY_EXITS: 7, TOOLS_POST_APPLICATIONS: 325, TOOLS_POST_TIME[ms]: 151, TOOLS_POST_CALL_APPLICATIONS: 78, TOOLS_POST_CALL_TIME[ms]: 182, TOOLS_POST_RETURN_APPLICATIONS: 72, TOOLS_POST_RETURN_TIME[ms]: 234, TOOLS_QUANTIFIERELIM_APPLICATIONS: 475, TOOLS_QUANTIFIERELIM_TIME[ms]: 445, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 75, FLUID_QUERY_TIME[ms]: 16, FLUID_QUERIES: 466, FLUID_YES_ANSWERS: 1, DOMAIN_JOIN_APPLICATIONS: 171, DOMAIN_JOIN_TIME[ms]: 23786, DOMAIN_ALPHA_APPLICATIONS: 1, DOMAIN_ALPHA_TIME[ms]: 159, DOMAIN_WIDEN_APPLICATIONS: 11, DOMAIN_WIDEN_TIME[ms]: 3680, DOMAIN_ISSUBSETEQ_APPLICATIONS: 179, DOMAIN_ISSUBSETEQ_TIME[ms]: 302, DOMAIN_ISBOTTOM_APPLICATIONS: 107, DOMAIN_ISBOTTOM_TIME[ms]: 200, LOOP_SUMMARIZER_APPLICATIONS: 12, LOOP_SUMMARIZER_CACHE_MISSES: 12, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 20957, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 20957, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 23, CALL_SUMMARIZER_APPLICATIONS: 72, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 23567, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 37, 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 959#(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...