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 NONE -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 15:13:47,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 15:13:47,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 15:13:47,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 15:13:47,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 15:13:47,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 15:13:47,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 15:13:47,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 15:13:47,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 15:13:47,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 15:13:47,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 15:13:47,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 15:13:47,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 15:13:47,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 15:13:47,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 15:13:47,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 15:13:47,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 15:13:47,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 15:13:47,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 15:13:47,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 15:13:47,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 15:13:47,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 15:13:47,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 15:13:47,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 15:13:47,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 15:13:47,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 15:13:47,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 15:13:47,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 15:13:47,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 15:13:47,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 15:13:47,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 15:13:47,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 15:13:47,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 15:13:47,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 15:13:47,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 15:13:47,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 15:13:47,088 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 15:13:47,116 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 15:13:47,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 15:13:47,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 15:13:47,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 15:13:47,119 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 15:13:47,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 15:13:47,120 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 15:13:47,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 15:13:47,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 15:13:47,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 15:13:47,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 15:13:47,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 15:13:47,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 15:13:47,123 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 15:13:47,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 15:13:47,123 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 15:13:47,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 15:13:47,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 15:13:47,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 15:13:47,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 15:13:47,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 15:13:47,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 15:13:47,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 15:13:47,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 15:13:47,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 15:13:47,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 15:13:47,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 15:13:47,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 15:13:47,127 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 -> NONE [2019-09-20 15:13:47,189 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 15:13:47,212 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 15:13:47,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 15:13:47,219 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 15:13:47,219 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 15:13:47,220 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-2.c [2019-09-20 15:13:47,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d3e1356a/ef8ad0ec18bd4e9f8f571587b001c126/FLAGc02879c86 [2019-09-20 15:13:47,749 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 15:13:47,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_1.cil-2.c [2019-09-20 15:13:47,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d3e1356a/ef8ad0ec18bd4e9f8f571587b001c126/FLAGc02879c86 [2019-09-20 15:13:48,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d3e1356a/ef8ad0ec18bd4e9f8f571587b001c126 [2019-09-20 15:13:48,120 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 15:13:48,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 15:13:48,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 15:13:48,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 15:13:48,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 15:13:48,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:13:48" (1/1) ... [2019-09-20 15:13:48,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6344516b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:48, skipping insertion in model container [2019-09-20 15:13:48,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:13:48" (1/1) ... [2019-09-20 15:13:48,139 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 15:13:48,186 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 15:13:48,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 15:13:48,394 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 15:13:48,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 15:13:48,592 INFO L192 MainTranslator]: Completed translation [2019-09-20 15:13:48,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:48 WrapperNode [2019-09-20 15:13:48,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 15:13:48,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 15:13:48,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 15:13:48,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 15:13:48,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:48" (1/1) ... [2019-09-20 15:13:48,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:48" (1/1) ... [2019-09-20 15:13:48,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:48" (1/1) ... [2019-09-20 15:13:48,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:48" (1/1) ... [2019-09-20 15:13:48,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:48" (1/1) ... [2019-09-20 15:13:48,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:48" (1/1) ... [2019-09-20 15:13:48,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:48" (1/1) ... [2019-09-20 15:13:48,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 15:13:48,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 15:13:48,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 15:13:48,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 15:13:48,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:48" (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 15:13:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 15:13:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 15:13:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-20 15:13:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-20 15:13:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-20 15:13:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-20 15:13:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-20 15:13:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-20 15:13:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-20 15:13:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-20 15:13:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-20 15:13:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-20 15:13:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-20 15:13:48,710 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-20 15:13:48,710 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 15:13:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 15:13:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 15:13:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-20 15:13:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-20 15:13:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-20 15:13:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-20 15:13:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-20 15:13:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-20 15:13:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-20 15:13:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-20 15:13:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-20 15:13:48,712 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-20 15:13:48,712 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-20 15:13:48,712 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-20 15:13:48,712 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 15:13:48,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 15:13:48,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 15:13:49,354 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 15:13:49,354 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 15:13:49,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:13:49 BoogieIcfgContainer [2019-09-20 15:13:49,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 15:13:49,358 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 15:13:49,358 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 15:13:49,358 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 15:13:49,360 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:13:49" (1/1) ... [2019-09-20 15:13:49,360 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=NONE ♦ Intern Fluid=SizeLimitFluid [2019-09-20 15:13:49,384 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 15:13:49,384 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 15:13:49,393 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 15:13:49,403 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 15:13:49,404 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 15:13:49,472 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 62 for LOIs [2019-09-20 15:13:49,502 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 60 for LOIs [2019-09-20 15:13:50,308 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 77 for LOIs [2019-09-20 15:13:50,427 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 27 for LOIs [2019-09-20 15:13:50,493 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 51 for LOIs [2019-09-20 15:13:50,494 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 15:13:50,494 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 15:13:50,497 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 1115#(or (and (= ~q_read_ev~0 2) (or (and (or (and (not (= ~c_dr_pc~0 0)) (= ~c_dr_pc~0 1) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (and (or (and (not (= ~c_dr_pc~0 1)) (not (= ~c_dr_pc~0 0))) (= ~c_dr_pc~0 0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0))) (not (= 1 ~p_dw_pc~0))) (and (or (and (not (= ~c_dr_pc~0 0)) (= ~c_dr_pc~0 1) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (and (or (and (not (= ~c_dr_pc~0 1)) (not (= ~c_dr_pc~0 0))) (= ~c_dr_pc~0 0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0))) (= 0 ~p_dw_st~0) (= 1 ~p_dw_pc~0))) (or (not (= ~c_dr_pc~0 1)) (and (= ~c_dr_pc~0 1) (not (= ~q_write_ev~0 1))) (and (= ~q_write_ev~0 1) (= ~c_dr_pc~0 1) (= ~c_dr_st~0 0))) (not (= ~c_last_read~0 ~p_last_write~0))) (and (= ~q_read_ev~0 2) (not (= ~c_num_read~0 ~p_num_write~0)) (= ~c_last_read~0 ~p_last_write~0) (or (not (= ~c_dr_pc~0 1)) (and (= ~c_dr_pc~0 1) (not (= ~q_write_ev~0 1))) (and (= ~q_write_ev~0 1) (= ~c_dr_pc~0 1) (= ~c_dr_st~0 0))) (or (and (or (and (= 0 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (not (= 1 ~p_dw_pc~0))) (not (= ~c_dr_pc~0 0)) (= ~c_dr_pc~0 1) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (and (or (and (= 0 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (not (= 1 ~p_dw_pc~0))) (or (and (not (= ~c_dr_pc~0 1)) (not (= ~c_dr_pc~0 0))) (= ~c_dr_pc~0 0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0))))) [2019-09-20 15:13:50,511 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 15:13:50,511 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 15:13:50,514 INFO L168 Benchmark]: Toolchain (without parser) took 2392.06 ms. Allocated memory was 138.9 MB in the beginning and 220.2 MB in the end (delta: 81.3 MB). Free memory was 86.4 MB in the beginning and 110.6 MB in the end (delta: -24.2 MB). Peak memory consumption was 57.1 MB. Max. memory is 7.1 GB. [2019-09-20 15:13:50,515 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 104.9 MB in the beginning and 104.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 15:13:50,517 INFO L168 Benchmark]: CACSL2BoogieTranslator took 470.13 ms. Allocated memory was 138.9 MB in the beginning and 198.2 MB in the end (delta: 59.2 MB). Free memory was 86.2 MB in the beginning and 175.8 MB in the end (delta: -89.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-09-20 15:13:50,518 INFO L168 Benchmark]: Boogie Preprocessor took 41.55 ms. Allocated memory is still 198.2 MB. Free memory was 175.8 MB in the beginning and 173.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-09-20 15:13:50,518 INFO L168 Benchmark]: RCFGBuilder took 720.93 ms. Allocated memory is still 198.2 MB. Free memory was 173.5 MB in the beginning and 135.8 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. [2019-09-20 15:13:50,520 INFO L168 Benchmark]: Sifa took 1153.72 ms. Allocated memory was 198.2 MB in the beginning and 220.2 MB in the end (delta: 22.0 MB). Free memory was 135.8 MB in the beginning and 110.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. [2019-09-20 15:13:50,524 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 104.9 MB in the beginning and 104.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 470.13 ms. Allocated memory was 138.9 MB in the beginning and 198.2 MB in the end (delta: 59.2 MB). Free memory was 86.2 MB in the beginning and 175.8 MB in the end (delta: -89.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.55 ms. Allocated memory is still 198.2 MB. Free memory was 175.8 MB in the beginning and 173.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 720.93 ms. Allocated memory is still 198.2 MB. Free memory was 173.5 MB in the beginning and 135.8 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. * Sifa took 1153.72 ms. Allocated memory was 198.2 MB in the beginning and 220.2 MB in the end (delta: 22.0 MB). Free memory was 135.8 MB in the beginning and 110.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 1113, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 674, DAG_INTERPRETER_EARLY_EXITS: 27, TOOLS_POST_APPLICATIONS: 487, TOOLS_POST_TIME[ms]: 215, TOOLS_POST_CALL_APPLICATIONS: 117, TOOLS_POST_CALL_TIME[ms]: 258, TOOLS_POST_RETURN_APPLICATIONS: 111, TOOLS_POST_RETURN_TIME[ms]: 159, TOOLS_QUANTIFIERELIM_APPLICATIONS: 694, TOOLS_QUANTIFIERELIM_TIME[ms]: 453, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 23, FLUID_QUERY_TIME[ms]: 19, FLUID_QUERIES: 733, FLUID_YES_ANSWERS: 4, DOMAIN_JOIN_APPLICATIONS: 149, DOMAIN_JOIN_TIME[ms]: 24, DOMAIN_ALPHA_APPLICATIONS: 4, DOMAIN_ALPHA_TIME[ms]: 22, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 59, DOMAIN_ISSUBSETEQ_TIME[ms]: 41, DOMAIN_ISBOTTOM_APPLICATIONS: 113, DOMAIN_ISBOTTOM_TIME[ms]: 194, LOOP_SUMMARIZER_APPLICATIONS: 59, LOOP_SUMMARIZER_CACHE_MISSES: 59, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 733, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 731, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 59, CALL_SUMMARIZER_APPLICATIONS: 111, CALL_SUMMARIZER_CACHE_MISSES: 14, CALL_SUMMARIZER_OVERALL_TIME[ms]: 744, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 743, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 54, DAG_COMPRESSION_PROCESSED_NODES: 709, DAG_COMPRESSION_RETAINED_NODES: 320 - 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 1115#(or (and (= ~q_read_ev~0 2) (or (and (or (and (not (= ~c_dr_pc~0 0)) (= ~c_dr_pc~0 1) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (and (or (and (not (= ~c_dr_pc~0 1)) (not (= ~c_dr_pc~0 0))) (= ~c_dr_pc~0 0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0))) (not (= 1 ~p_dw_pc~0))) (and (or (and (not (= ~c_dr_pc~0 0)) (= ~c_dr_pc~0 1) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (and (or (and (not (= ~c_dr_pc~0 1)) (not (= ~c_dr_pc~0 0))) (= ~c_dr_pc~0 0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0))) (= 0 ~p_dw_st~0) (= 1 ~p_dw_pc~0))) (or (not (= ~c_dr_pc~0 1)) (and (= ~c_dr_pc~0 1) (not (= ~q_write_ev~0 1))) (and (= ~q_write_ev~0 1) (= ~c_dr_pc~0 1) (= ~c_dr_st~0 0))) (not (= ~c_last_read~0 ~p_last_write~0))) (and (= ~q_read_ev~0 2) (not (= ~c_num_read~0 ~p_num_write~0)) (= ~c_last_read~0 ~p_last_write~0) (or (not (= ~c_dr_pc~0 1)) (and (= ~c_dr_pc~0 1) (not (= ~q_write_ev~0 1))) (and (= ~q_write_ev~0 1) (= ~c_dr_pc~0 1) (= ~c_dr_st~0 0))) (or (and (or (and (= 0 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (not (= 1 ~p_dw_pc~0))) (not (= ~c_dr_pc~0 0)) (= ~c_dr_pc~0 1) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (and (or (and (= 0 ~p_dw_st~0) (= 1 ~p_dw_pc~0)) (not (= 1 ~p_dw_pc~0))) (or (and (not (= ~c_dr_pc~0 1)) (not (= ~c_dr_pc~0 0))) (= ~c_dr_pc~0 0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0))))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...