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_QUICK -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-17 06:12:10,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-17 06:12:10,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-17 06:12:10,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-17 06:12:10,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-17 06:12:10,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-17 06:12:10,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-17 06:12:10,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-17 06:12:10,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-17 06:12:10,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-17 06:12:10,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-17 06:12:10,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-17 06:12:10,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-17 06:12:10,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-17 06:12:10,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-17 06:12:10,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-17 06:12:10,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-17 06:12:10,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-17 06:12:10,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-17 06:12:10,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-17 06:12:10,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-17 06:12:10,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-17 06:12:10,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-17 06:12:10,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-17 06:12:10,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-17 06:12:10,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-17 06:12:10,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-17 06:12:10,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-17 06:12:10,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-17 06:12:10,117 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-17 06:12:10,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-17 06:12:10,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-17 06:12:10,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-17 06:12:10,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-17 06:12:10,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-17 06:12:10,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-17 06:12:10,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-17 06:12:10,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-17 06:12:10,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-17 06:12:10,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-17 06:12:10,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-17 06:12:10,125 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 [2019-09-17 06:12:10,140 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-17 06:12:10,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-17 06:12:10,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-17 06:12:10,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-17 06:12:10,142 INFO L138 SettingsManager]: * Use SBE=true [2019-09-17 06:12:10,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-17 06:12:10,142 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-17 06:12:10,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-17 06:12:10,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-17 06:12:10,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-17 06:12:10,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-17 06:12:10,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-17 06:12:10,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-17 06:12:10,144 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-17 06:12:10,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-17 06:12:10,144 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-17 06:12:10,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-17 06:12:10,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-17 06:12:10,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-17 06:12:10,145 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-17 06:12:10,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-17 06:12:10,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-17 06:12:10,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-17 06:12:10,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-17 06:12:10,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-17 06:12:10,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-17 06:12:10,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-17 06:12:10,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-17 06:12:10,147 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_QUICK [2019-09-17 06:12:10,178 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-17 06:12:10,192 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-17 06:12:10,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-17 06:12:10,197 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-17 06:12:10,197 INFO L275 PluginConnector]: CDTParser initialized [2019-09-17 06:12:10,198 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c [2019-09-17 06:12:10,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08c490dd0/417442b6cc62419a868d5eb135c8103f/FLAG53d7c3fbd [2019-09-17 06:12:10,730 INFO L306 CDTParser]: Found 1 translation units. [2019-09-17 06:12:10,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c [2019-09-17 06:12:10,740 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08c490dd0/417442b6cc62419a868d5eb135c8103f/FLAG53d7c3fbd [2019-09-17 06:12:11,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08c490dd0/417442b6cc62419a868d5eb135c8103f [2019-09-17 06:12:11,134 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-17 06:12:11,135 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-17 06:12:11,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-17 06:12:11,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-17 06:12:11,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-17 06:12:11,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 06:12:11" (1/1) ... [2019-09-17 06:12:11,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45b776f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 06:12:11, skipping insertion in model container [2019-09-17 06:12:11,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 06:12:11" (1/1) ... [2019-09-17 06:12:11,152 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-17 06:12:11,212 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-17 06:12:11,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-17 06:12:11,456 INFO L188 MainTranslator]: Completed pre-run [2019-09-17 06:12:11,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-17 06:12:11,606 INFO L192 MainTranslator]: Completed translation [2019-09-17 06:12:11,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 06:12:11 WrapperNode [2019-09-17 06:12:11,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-17 06:12:11,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-17 06:12:11,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-17 06:12:11,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-17 06:12:11,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 06:12:11" (1/1) ... [2019-09-17 06:12:11,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 06:12:11" (1/1) ... [2019-09-17 06:12:11,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 06:12:11" (1/1) ... [2019-09-17 06:12:11,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 06:12:11" (1/1) ... [2019-09-17 06:12:11,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 06:12:11" (1/1) ... [2019-09-17 06:12:11,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 06:12:11" (1/1) ... [2019-09-17 06:12:11,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 06:12:11" (1/1) ... [2019-09-17 06:12:11,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-17 06:12:11,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-17 06:12:11,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-17 06:12:11,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-17 06:12:11,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 06:12:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-17 06:12:11,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-17 06:12:11,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-17 06:12:11,722 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-17 06:12:11,722 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-17 06:12:11,724 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-17 06:12:11,724 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-17 06:12:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-17 06:12:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-17 06:12:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-17 06:12:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-17 06:12:11,726 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-17 06:12:11,728 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-17 06:12:11,728 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-17 06:12:11,728 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-17 06:12:11,728 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-17 06:12:11,729 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-17 06:12:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-17 06:12:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-17 06:12:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-17 06:12:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-17 06:12:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-17 06:12:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-17 06:12:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-17 06:12:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-17 06:12:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-17 06:12:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-17 06:12:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-17 06:12:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-17 06:12:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-17 06:12:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-17 06:12:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-17 06:12:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-17 06:12:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-17 06:12:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-17 06:12:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-17 06:12:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-17 06:12:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-17 06:12:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-17 06:12:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-17 06:12:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-17 06:12:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-17 06:12:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-17 06:12:12,502 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-17 06:12:12,503 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-17 06:12:12,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 06:12:12 BoogieIcfgContainer [2019-09-17 06:12:12,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-17 06:12:12,505 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-17 06:12:12,505 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-17 06:12:12,505 INFO L275 PluginConnector]: Sifa initialized [2019-09-17 06:12:12,507 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 06:12:12" (1/1) ... [2019-09-17 06:12:12,507 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_QUICK ♦ Intern Fluid=SizeLimitFluid [2019-09-17 06:12:12,531 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-17 06:12:12,531 INFO L169 IcfgInterpreter]: Building call graph [2019-09-17 06:12:12,540 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-17 06:12:12,550 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-17 06:12:12,551 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-17 06:12:12,728 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 70 for LOIs [2019-09-17 06:12:12,782 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 68 for LOIs [2019-09-17 06:12:13,734 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 56 for LOIs [2019-09-17 06:12:13,933 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 24 for LOIs [2019-09-17 06:12:14,043 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 19 for LOIs [2019-09-17 06:12:14,046 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-17 06:12:14,047 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-17 06:12:14,056 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 880#(or (and (and (= 1 ~q_req_up~0) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (not (= ~c_num_read~0 ~p_num_write~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)))) [2019-09-17 06:12:14,074 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-17 06:12:14,075 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-17 06:12:14,078 INFO L168 Benchmark]: Toolchain (without parser) took 2941.28 ms. Allocated memory was 134.2 MB in the beginning and 225.4 MB in the end (delta: 91.2 MB). Free memory was 89.3 MB in the beginning and 89.7 MB in the end (delta: -403.8 kB). Peak memory consumption was 90.8 MB. Max. memory is 7.1 GB. [2019-09-17 06:12:14,079 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 134.2 MB. Free memory is still 108.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-17 06:12:14,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 470.47 ms. Allocated memory was 134.2 MB in the beginning and 198.2 MB in the end (delta: 64.0 MB). Free memory was 89.3 MB in the beginning and 172.9 MB in the end (delta: -83.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-09-17 06:12:14,083 INFO L168 Benchmark]: Boogie Preprocessor took 49.48 ms. Allocated memory is still 198.2 MB. Free memory was 172.9 MB in the beginning and 170.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-09-17 06:12:14,084 INFO L168 Benchmark]: RCFGBuilder took 847.08 ms. Allocated memory is still 198.2 MB. Free memory was 170.3 MB in the beginning and 122.5 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. [2019-09-17 06:12:14,090 INFO L168 Benchmark]: Sifa took 1569.85 ms. Allocated memory was 198.2 MB in the beginning and 225.4 MB in the end (delta: 27.3 MB). Free memory was 122.5 MB in the beginning and 89.7 MB in the end (delta: 32.8 MB). Peak memory consumption was 60.1 MB. Max. memory is 7.1 GB. [2019-09-17 06:12:14,102 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 134.2 MB. Free memory is still 108.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 470.47 ms. Allocated memory was 134.2 MB in the beginning and 198.2 MB in the end (delta: 64.0 MB). Free memory was 89.3 MB in the beginning and 172.9 MB in the end (delta: -83.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.48 ms. Allocated memory is still 198.2 MB. Free memory was 172.9 MB in the beginning and 170.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 847.08 ms. Allocated memory is still 198.2 MB. Free memory was 170.3 MB in the beginning and 122.5 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. * Sifa took 1569.85 ms. Allocated memory was 198.2 MB in the beginning and 225.4 MB in the end (delta: 27.3 MB). Free memory was 122.5 MB in the beginning and 89.7 MB in the end (delta: 32.8 MB). Peak memory consumption was 60.1 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]: 1526, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 314, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 227, TOOLS_POST_TIME[ms]: 84, TOOLS_POST_CALL_APPLICATIONS: 63, TOOLS_POST_CALL_TIME[ms]: 176, TOOLS_POST_RETURN_APPLICATIONS: 57, TOOLS_POST_RETURN_TIME[ms]: 121, TOOLS_QUANTIFIERELIM_APPLICATIONS: 347, TOOLS_QUANTIFIERELIM_TIME[ms]: 269, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 16, FLUID_QUERY_TIME[ms]: 16, FLUID_QUERIES: 325, FLUID_YES_ANSWERS: 3, DOMAIN_JOIN_APPLICATIONS: 119, DOMAIN_JOIN_TIME[ms]: 709, DOMAIN_ALPHA_APPLICATIONS: 3, DOMAIN_ALPHA_TIME[ms]: 82, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 1, DOMAIN_ISSUBSETEQ_APPLICATIONS: 11, DOMAIN_ISSUBSETEQ_TIME[ms]: 18, DOMAIN_ISBOTTOM_APPLICATIONS: 81, DOMAIN_ISBOTTOM_TIME[ms]: 142, LOOP_SUMMARIZER_APPLICATIONS: 10, LOOP_SUMMARIZER_CACHE_MISSES: 10, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 672, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 671, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 11, CALL_SUMMARIZER_APPLICATIONS: 57, CALL_SUMMARIZER_CACHE_MISSES: 18, CALL_SUMMARIZER_OVERALL_TIME[ms]: 836, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 836, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 49, 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 880#(or (and (and (= 1 ~q_req_up~0) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (not (= ~c_num_read~0 ~p_num_write~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...