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-fea9116 [2019-09-20 20:40:56,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 20:40:56,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 20:40:56,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 20:40:56,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 20:40:56,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 20:40:56,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 20:40:56,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 20:40:56,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 20:40:56,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 20:40:56,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 20:40:56,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 20:40:56,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 20:40:56,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 20:40:56,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 20:40:56,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 20:40:56,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 20:40:56,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 20:40:56,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 20:40:56,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 20:40:56,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 20:40:56,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 20:40:56,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 20:40:56,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 20:40:56,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 20:40:56,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 20:40:56,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 20:40:56,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 20:40:56,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 20:40:56,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 20:40:56,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 20:40:56,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 20:40:56,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 20:40:56,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 20:40:56,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 20:40:56,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 20:40:56,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 20:40:56,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 20:40:56,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 20:40:56,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 20:40:56,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 20:40:56,486 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 20:40:56,511 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 20:40:56,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 20:40:56,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 20:40:56,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 20:40:56,515 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 20:40:56,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 20:40:56,515 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 20:40:56,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 20:40:56,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 20:40:56,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 20:40:56,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 20:40:56,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 20:40:56,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 20:40:56,518 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 20:40:56,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 20:40:56,518 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 20:40:56,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 20:40:56,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 20:40:56,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 20:40:56,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 20:40:56,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 20:40:56,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 20:40:56,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 20:40:56,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 20:40:56,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 20:40:56,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 20:40:56,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 20:40:56,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 20:40:56,521 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 [2019-09-20 20:40:56,575 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 20:40:56,595 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 20:40:56,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 20:40:56,600 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 20:40:56,600 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 20:40:56,601 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c [2019-09-20 20:40:56,659 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/610daac87/612202db0f574ce9a80ece974f9ad39e/FLAG577fe7b9c [2019-09-20 20:40:57,079 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 20:40:57,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c [2019-09-20 20:40:57,088 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/610daac87/612202db0f574ce9a80ece974f9ad39e/FLAG577fe7b9c [2019-09-20 20:40:57,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/610daac87/612202db0f574ce9a80ece974f9ad39e [2019-09-20 20:40:57,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 20:40:57,498 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 20:40:57,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 20:40:57,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 20:40:57,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 20:40:57,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:40:57" (1/1) ... [2019-09-20 20:40:57,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76030fc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:57, skipping insertion in model container [2019-09-20 20:40:57,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:40:57" (1/1) ... [2019-09-20 20:40:57,519 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 20:40:57,576 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 20:40:57,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 20:40:57,809 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 20:40:57,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 20:40:57,963 INFO L192 MainTranslator]: Completed translation [2019-09-20 20:40:57,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:57 WrapperNode [2019-09-20 20:40:57,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 20:40:57,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 20:40:57,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 20:40:57,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 20:40:57,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:57" (1/1) ... [2019-09-20 20:40:57,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:57" (1/1) ... [2019-09-20 20:40:57,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:57" (1/1) ... [2019-09-20 20:40:57,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:57" (1/1) ... [2019-09-20 20:40:57,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:57" (1/1) ... [2019-09-20 20:40:58,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:57" (1/1) ... [2019-09-20 20:40:58,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:57" (1/1) ... [2019-09-20 20:40:58,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 20:40:58,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 20:40:58,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 20:40:58,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 20:40:58,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:57" (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 20:40:58,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 20:40:58,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 20:40:58,064 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-20 20:40:58,064 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-20 20:40:58,064 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-20 20:40:58,064 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-20 20:40:58,067 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-20 20:40:58,067 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-20 20:40:58,067 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-20 20:40:58,067 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-20 20:40:58,067 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-20 20:40:58,068 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-20 20:40:58,068 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-20 20:40:58,068 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-20 20:40:58,069 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-20 20:40:58,069 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-20 20:40:58,071 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-20 20:40:58,071 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-20 20:40:58,071 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-20 20:40:58,071 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 20:40:58,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 20:40:58,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 20:40:58,072 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-20 20:40:58,072 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-20 20:40:58,072 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-20 20:40:58,072 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-20 20:40:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-20 20:40:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-20 20:40:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-20 20:40:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-20 20:40:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-20 20:40:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-20 20:40:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-20 20:40:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-20 20:40:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-20 20:40:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-20 20:40:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-20 20:40:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-20 20:40:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-20 20:40:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 20:40:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 20:40:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 20:40:58,780 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 20:40:58,780 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 20:40:58,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:40:58 BoogieIcfgContainer [2019-09-20 20:40:58,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 20:40:58,782 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 20:40:58,783 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 20:40:58,783 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 20:40:58,784 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:40:58" (1/1) ... [2019-09-20 20:40:58,785 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 [2019-09-20 20:40:58,809 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 20:40:58,809 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 20:40:58,818 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 20:40:58,829 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 20:40:58,831 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 20:40:59,007 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 70 for LOIs [2019-09-20 20:40:59,126 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-09-20 20:40:59,248 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 68 for LOIs [2019-09-20 20:40:59,419 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-09-20 20:40:59,693 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2019-09-20 20:40:59,852 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2019-09-20 20:41:00,218 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2019-09-20 20:41:00,374 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 46 [2019-09-20 20:41:00,841 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-20 20:41:01,230 WARN L191 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-20 20:41:01,384 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-09-20 20:41:01,519 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-20 20:41:01,932 WARN L191 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-20 20:41:02,085 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-09-20 20:41:02,213 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-20 20:41:02,576 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-20 20:41:02,736 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-09-20 20:41:02,892 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-20 20:41:03,128 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-20 20:41:03,840 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-20 20:41:04,057 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-09-20 20:41:04,606 WARN L191 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-20 20:41:04,817 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-09-20 20:41:05,061 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2019-09-20 20:41:05,320 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2019-09-20 20:41:05,744 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2019-09-20 20:41:05,932 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 20:41:06,139 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2019-09-20 20:41:06,380 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2019-09-20 20:41:06,711 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-20 20:41:06,831 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2019-09-20 20:41:06,954 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2019-09-20 20:41:07,071 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2019-09-20 20:41:07,995 WARN L191 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2019-09-20 20:41:08,451 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 20:41:09,307 WARN L191 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2019-09-20 20:41:09,730 WARN L191 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 20:41:10,165 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 20:41:10,585 WARN L191 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 20:41:11,479 WARN L191 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2019-09-20 20:41:11,855 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-09-20 20:41:12,011 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-09-20 20:41:12,215 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-09-20 20:41:12,417 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-09-20 20:41:12,618 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-09-20 20:41:12,858 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-20 20:41:13,199 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-20 20:41:14,340 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-20 20:41:15,330 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2019-09-20 20:41:15,964 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-20 20:41:16,493 WARN L191 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2019-09-20 20:41:16,777 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2019-09-20 20:41:17,076 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-09-20 20:41:17,369 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2019-09-20 20:41:17,837 WARN L191 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 56 [2019-09-20 20:41:17,949 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-09-20 20:41:18,078 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-09-20 20:41:18,205 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-09-20 20:41:18,607 WARN L191 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 73 [2019-09-20 20:41:18,756 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-20 20:41:19,219 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 57 [2019-09-20 20:41:19,337 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-09-20 20:41:19,784 WARN L191 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 56 [2019-09-20 20:41:21,042 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 85 [2019-09-20 20:41:22,116 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 76 [2019-09-20 20:41:22,370 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 78 [2019-09-20 20:41:22,841 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-20 20:41:22,988 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-09-20 20:41:23,642 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 79 [2019-09-20 20:41:23,779 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-09-20 20:41:24,687 WARN L191 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 92 [2019-09-20 20:41:24,841 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-20 20:41:24,847 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 74 for LOIs [2019-09-20 20:41:25,257 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2019-09-20 20:41:25,424 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-20 20:41:25,804 WARN L191 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2019-09-20 20:41:25,971 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-20 20:41:26,426 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2019-09-20 20:41:26,882 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2019-09-20 20:41:27,174 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-20 20:41:27,953 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 24 for LOIs [2019-09-20 20:41:28,073 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2019-09-20 20:41:28,788 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-20 20:41:29,220 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-20 20:41:29,416 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 18 for LOIs [2019-09-20 20:41:29,453 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 20:41:29,453 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 20:41:29,455 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)))) [2019-09-20 20:41:29,469 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 20:41:29,470 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 20:41:29,472 INFO L168 Benchmark]: Toolchain (without parser) took 31973.25 ms. Allocated memory was 132.1 MB in the beginning and 523.2 MB in the end (delta: 391.1 MB). Free memory was 87.4 MB in the beginning and 278.7 MB in the end (delta: -191.2 MB). Peak memory consumption was 199.9 MB. Max. memory is 7.1 GB. [2019-09-20 20:41:29,473 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 132.1 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 20:41:29,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 464.77 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 87.2 MB in the beginning and 173.8 MB in the end (delta: -86.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-09-20 20:41:29,475 INFO L168 Benchmark]: Boogie Preprocessor took 42.88 ms. Allocated memory is still 198.7 MB. Free memory was 173.8 MB in the beginning and 171.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-09-20 20:41:29,476 INFO L168 Benchmark]: RCFGBuilder took 774.28 ms. Allocated memory is still 198.7 MB. Free memory was 171.3 MB in the beginning and 122.1 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. [2019-09-20 20:41:29,477 INFO L168 Benchmark]: Sifa took 30687.46 ms. Allocated memory was 198.7 MB in the beginning and 523.2 MB in the end (delta: 324.5 MB). Free memory was 122.1 MB in the beginning and 278.7 MB in the end (delta: -156.5 MB). Peak memory consumption was 168.0 MB. Max. memory is 7.1 GB. [2019-09-20 20:41:29,481 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 132.1 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 464.77 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 87.2 MB in the beginning and 173.8 MB in the end (delta: -86.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.88 ms. Allocated memory is still 198.7 MB. Free memory was 173.8 MB in the beginning and 171.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 774.28 ms. Allocated memory is still 198.7 MB. Free memory was 171.3 MB in the beginning and 122.1 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. * Sifa took 30687.46 ms. Allocated memory was 198.7 MB in the beginning and 523.2 MB in the end (delta: 324.5 MB). Free memory was 122.1 MB in the beginning and 278.7 MB in the end (delta: -156.5 MB). Peak memory consumption was 168.0 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]: 30647, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 443, DAG_INTERPRETER_EARLY_EXITS: 7, TOOLS_POST_APPLICATIONS: 325, TOOLS_POST_TIME[ms]: 150, TOOLS_POST_CALL_APPLICATIONS: 78, TOOLS_POST_CALL_TIME[ms]: 211, TOOLS_POST_RETURN_APPLICATIONS: 72, TOOLS_POST_RETURN_TIME[ms]: 254, TOOLS_QUANTIFIERELIM_APPLICATIONS: 475, TOOLS_QUANTIFIERELIM_TIME[ms]: 478, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 79, FLUID_QUERY_TIME[ms]: 17, FLUID_QUERIES: 466, FLUID_YES_ANSWERS: 1, DOMAIN_JOIN_APPLICATIONS: 171, DOMAIN_JOIN_TIME[ms]: 24523, DOMAIN_ALPHA_APPLICATIONS: 1, DOMAIN_ALPHA_TIME[ms]: 153, DOMAIN_WIDEN_APPLICATIONS: 11, DOMAIN_WIDEN_TIME[ms]: 3801, DOMAIN_ISSUBSETEQ_APPLICATIONS: 179, DOMAIN_ISSUBSETEQ_TIME[ms]: 348, DOMAIN_ISBOTTOM_APPLICATIONS: 107, DOMAIN_ISBOTTOM_TIME[ms]: 201, LOOP_SUMMARIZER_APPLICATIONS: 12, LOOP_SUMMARIZER_CACHE_MISSES: 12, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 21555, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 21554, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 23, CALL_SUMMARIZER_APPLICATIONS: 72, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 24151, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 12, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 32, 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...