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 -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-a32b1f7 [2019-08-18 09:08:11,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-18 09:08:11,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-18 09:08:11,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-18 09:08:11,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-18 09:08:11,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-18 09:08:11,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-18 09:08:11,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-18 09:08:11,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-18 09:08:11,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-18 09:08:11,999 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-18 09:08:12,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-18 09:08:12,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-18 09:08:12,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-18 09:08:12,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-18 09:08:12,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-18 09:08:12,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-18 09:08:12,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-18 09:08:12,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-18 09:08:12,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-18 09:08:12,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-18 09:08:12,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-18 09:08:12,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-18 09:08:12,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-18 09:08:12,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-18 09:08:12,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-18 09:08:12,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-18 09:08:12,024 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-18 09:08:12,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-18 09:08:12,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-18 09:08:12,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-18 09:08:12,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-18 09:08:12,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-18 09:08:12,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-18 09:08:12,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-18 09:08:12,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-18 09:08:12,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-18 09:08:12,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-18 09:08:12,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-18 09:08:12,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-18 09:08:12,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-18 09:08:12,037 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 [2019-08-18 09:08:12,065 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-18 09:08:12,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-18 09:08:12,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-18 09:08:12,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-18 09:08:12,067 INFO L138 SettingsManager]: * Use SBE=true [2019-08-18 09:08:12,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-18 09:08:12,067 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-18 09:08:12,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-18 09:08:12,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-18 09:08:12,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-18 09:08:12,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-18 09:08:12,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-18 09:08:12,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-18 09:08:12,069 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-18 09:08:12,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-18 09:08:12,070 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-18 09:08:12,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-18 09:08:12,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-18 09:08:12,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-18 09:08:12,071 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-18 09:08:12,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-18 09:08:12,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-18 09:08:12,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-18 09:08:12,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-18 09:08:12,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-18 09:08:12,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-18 09:08:12,072 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-18 09:08:12,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-18 09:08:12,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-18 09:08:12,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-18 09:08:12,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-18 09:08:12,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-18 09:08:12,150 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-18 09:08:12,150 INFO L275 PluginConnector]: CDTParser initialized [2019-08-18 09:08:12,151 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-08-18 09:08:12,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebd7380f9/dc4ca415d0824ab3a9c04663473d27c8/FLAGe6e88c65f [2019-08-18 09:08:12,781 INFO L306 CDTParser]: Found 1 translation units. [2019-08-18 09:08:12,784 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2019-08-18 09:08:12,804 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebd7380f9/dc4ca415d0824ab3a9c04663473d27c8/FLAGe6e88c65f [2019-08-18 09:08:13,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebd7380f9/dc4ca415d0824ab3a9c04663473d27c8 [2019-08-18 09:08:13,118 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-18 09:08:13,119 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-18 09:08:13,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-18 09:08:13,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-18 09:08:13,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-18 09:08:13,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:08:13" (1/1) ... [2019-08-18 09:08:13,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce430fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:08:13, skipping insertion in model container [2019-08-18 09:08:13,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:08:13" (1/1) ... [2019-08-18 09:08:13,134 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-18 09:08:13,185 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-18 09:08:13,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 09:08:13,408 INFO L188 MainTranslator]: Completed pre-run [2019-08-18 09:08:13,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 09:08:13,566 INFO L192 MainTranslator]: Completed translation [2019-08-18 09:08:13,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:08:13 WrapperNode [2019-08-18 09:08:13,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-18 09:08:13,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-18 09:08:13,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-18 09:08:13,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-18 09:08:13,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:08:13" (1/1) ... [2019-08-18 09:08:13,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:08:13" (1/1) ... [2019-08-18 09:08:13,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:08:13" (1/1) ... [2019-08-18 09:08:13,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:08:13" (1/1) ... [2019-08-18 09:08:13,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:08:13" (1/1) ... [2019-08-18 09:08:13,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:08:13" (1/1) ... [2019-08-18 09:08:13,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:08:13" (1/1) ... [2019-08-18 09:08:13,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-18 09:08:13,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-18 09:08:13,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-18 09:08:13,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-18 09:08:13,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:08:13" (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 [2019-08-18 09:08:13,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-18 09:08:13,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-18 09:08:13,675 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-08-18 09:08:13,676 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-08-18 09:08:13,676 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-08-18 09:08:13,676 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-08-18 09:08:13,676 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-08-18 09:08:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-08-18 09:08:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-08-18 09:08:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-08-18 09:08:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-08-18 09:08:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-08-18 09:08:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-08-18 09:08:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-08-18 09:08:13,678 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-08-18 09:08:13,678 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-08-18 09:08:13,678 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-08-18 09:08:13,678 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-08-18 09:08:13,678 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-08-18 09:08:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-08-18 09:08:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-08-18 09:08:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-18 09:08:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-18 09:08:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-18 09:08:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-08-18 09:08:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-08-18 09:08:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-08-18 09:08:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-08-18 09:08:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-08-18 09:08:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-08-18 09:08:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-08-18 09:08:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-08-18 09:08:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-08-18 09:08:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-08-18 09:08:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-08-18 09:08:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-08-18 09:08:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-08-18 09:08:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-08-18 09:08:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-08-18 09:08:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-08-18 09:08:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-08-18 09:08:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-08-18 09:08:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-08-18 09:08:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-18 09:08:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-18 09:08:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-18 09:08:14,316 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := ~a~0; [2019-08-18 09:08:14,316 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2019-08-18 09:08:14,326 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-18 09:08:14,327 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-08-18 09:08:14,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:08:14 BoogieIcfgContainer [2019-08-18 09:08:14,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-18 09:08:14,329 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-18 09:08:14,329 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-18 09:08:14,329 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-18 09:08:14,330 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:08:14" (1/1) ... [2019-08-18 09:08:14,343 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-18 09:08:14,345 INFO L155 IcfgInterpreter]: Building call graph [2019-08-18 09:08:14,354 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-18 09:08:14,362 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-18 09:08:14,364 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-18 09:08:14,462 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 82 [2019-08-18 09:08:14,508 INFO L185 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 80 [2019-08-18 09:08:14,959 INFO L185 IcfgInterpreter]: Interpreting procedure eval with input of size 92 [2019-08-18 09:08:15,041 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 09:08:15,047 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 09:08:15,049 INFO L185 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 40 [2019-08-18 09:08:15,053 INFO L185 IcfgInterpreter]: Interpreting procedure error with input of size 39 [2019-08-18 09:08:15,054 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-18 09:08:15,054 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-18 09:08:15,056 INFO L179 IcfgInterpreter]: Location errorErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 734#(or (and (= 1 ~q_req_up~0) (not (= ~c_dr_pc~0 0)) (or (and (not (= 0 ~p_dw_st~0)) (= ~c_dr_st~0 1)) (and (or (and (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (= 0 ~p_dw_st~0) (and (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0))) (= ~c_dr_st~0 1))) (not (= ~c_num_read~0 ~p_num_write~0)) (= ~c_last_read~0 ~p_last_write~0) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (= ~c_dr_pc~0 2)) (and (= 1 ~q_req_up~0) (not (= ~c_dr_pc~0 0)) (or (and (not (= 0 ~p_dw_st~0)) (= ~c_dr_st~0 1)) (and (or (and (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (= 0 ~p_dw_st~0) (and (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0))) (= ~c_dr_st~0 1))) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (= ~c_dr_pc~0 2) (not (= ~c_last_read~0 ~p_last_write~0)))) [2019-08-18 09:08:15,066 INFO L92 terpretationObserver]: ✘ Some locations of interest might be reachable, see reported results. [2019-08-18 09:08:15,066 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-18 09:08:15,069 INFO L168 Benchmark]: Toolchain (without parser) took 1948.46 ms. Allocated memory was 132.1 MB in the beginning and 221.2 MB in the end (delta: 89.1 MB). Free memory was 86.9 MB in the beginning and 178.6 MB in the end (delta: -91.7 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2019-08-18 09:08:15,070 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 132.1 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-18 09:08:15,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.52 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 86.7 MB in the beginning and 173.2 MB in the end (delta: -86.5 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2019-08-18 09:08:15,072 INFO L168 Benchmark]: Boogie Preprocessor took 46.90 ms. Allocated memory is still 198.7 MB. Free memory was 173.2 MB in the beginning and 170.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-08-18 09:08:15,073 INFO L168 Benchmark]: RCFGBuilder took 713.92 ms. Allocated memory is still 198.7 MB. Free memory was 170.8 MB in the beginning and 136.5 MB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2019-08-18 09:08:15,074 INFO L168 Benchmark]: Symbolic Interpretation took 737.69 ms. Allocated memory was 198.7 MB in the beginning and 221.2 MB in the end (delta: 22.5 MB). Free memory was 136.5 MB in the beginning and 178.6 MB in the end (delta: -42.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 7.1 GB. [2019-08-18 09:08:15,078 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 9]: 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 734#(or (and (= 1 ~q_req_up~0) (not (= ~c_dr_pc~0 0)) (or (and (not (= 0 ~p_dw_st~0)) (= ~c_dr_st~0 1)) (and (or (and (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (= 0 ~p_dw_st~0) (and (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0))) (= ~c_dr_st~0 1))) (not (= ~c_num_read~0 ~p_num_write~0)) (= ~c_last_read~0 ~p_last_write~0) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (= ~c_dr_pc~0 2)) (and (= 1 ~q_req_up~0) (not (= ~c_dr_pc~0 0)) (or (and (not (= 0 ~p_dw_st~0)) (= ~c_dr_st~0 1)) (and (or (and (= 2 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (= 0 ~p_dw_st~0) (and (= 2 ~p_dw_st~0) (= 2 ~p_dw_pc~0))) (= ~c_dr_st~0 1))) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (= ~c_dr_pc~0 2) (not (= ~c_last_read~0 ~p_last_write~0)))). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 132.1 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 446.52 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 86.7 MB in the beginning and 173.2 MB in the end (delta: -86.5 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.90 ms. Allocated memory is still 198.7 MB. Free memory was 173.2 MB in the beginning and 170.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 713.92 ms. Allocated memory is still 198.7 MB. Free memory was 170.8 MB in the beginning and 136.5 MB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 737.69 ms. Allocated memory was 198.7 MB in the beginning and 221.2 MB in the end (delta: 22.5 MB). Free memory was 136.5 MB in the beginning and 178.6 MB in the end (delta: -42.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...