/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/SifaC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/ldv-regression/recursive_list.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 06:01:02,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 06:01:02,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 06:01:03,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 06:01:03,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 06:01:03,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 06:01:03,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 06:01:03,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 06:01:03,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 06:01:03,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 06:01:03,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 06:01:03,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 06:01:03,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 06:01:03,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 06:01:03,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 06:01:03,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 06:01:03,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 06:01:03,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 06:01:03,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 06:01:03,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 06:01:03,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 06:01:03,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 06:01:03,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 06:01:03,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 06:01:03,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 06:01:03,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 06:01:03,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 06:01:03,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 06:01:03,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 06:01:03,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 06:01:03,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 06:01:03,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 06:01:03,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 06:01:03,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 06:01:03,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 06:01:03,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 06:01:03,058 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 06:01:03,086 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 06:01:03,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 06:01:03,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 06:01:03,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 06:01:03,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 06:01:03,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 06:01:03,088 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 06:01:03,088 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 06:01:03,088 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 06:01:03,088 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 06:01:03,089 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 06:01:03,089 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 06:01:03,089 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 06:01:03,089 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 06:01:03,089 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 06:01:03,089 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 06:01:03,089 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 06:01:03,089 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 06:01:03,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 06:01:03,090 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 06:01:03,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 06:01:03,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 06:01:03,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 06:01:03,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 06:01:03,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 06:01:03,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 06:01:03,091 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 06:01:03,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 06:01:03,091 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 06:01:03,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 06:01:03,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 06:01:03,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 06:01:03,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 06:01:03,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 06:01:03,092 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 06:01:03,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 06:01:03,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 06:01:03,092 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 06:01:03,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 06:01:03,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 06:01:03,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 06:01:03,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 06:01:03,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 06:01:03,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 06:01:03,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 06:01:03,375 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 06:01:03,376 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 06:01:03,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/recursive_list.i [2023-03-31 06:01:04,679 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 06:01:04,853 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 06:01:04,854 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/recursive_list.i [2023-03-31 06:01:04,859 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/371078f96/ca65dd51e5c54be794f3f1f133b832fa/FLAG36c11cd77 [2023-03-31 06:01:04,873 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/371078f96/ca65dd51e5c54be794f3f1f133b832fa [2023-03-31 06:01:04,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 06:01:04,878 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 06:01:04,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 06:01:04,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 06:01:04,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 06:01:04,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 06:01:04" (1/1) ... [2023-03-31 06:01:04,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b8ce11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:01:04, skipping insertion in model container [2023-03-31 06:01:04,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 06:01:04" (1/1) ... [2023-03-31 06:01:04,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 06:01:04,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 06:01:05,011 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/recursive_list.i[409,422] [2023-03-31 06:01:05,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 06:01:05,039 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 06:01:05,050 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/recursive_list.i[409,422] [2023-03-31 06:01:05,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 06:01:05,073 INFO L208 MainTranslator]: Completed translation [2023-03-31 06:01:05,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:01:05 WrapperNode [2023-03-31 06:01:05,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 06:01:05,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 06:01:05,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 06:01:05,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 06:01:05,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:01:05" (1/1) ... [2023-03-31 06:01:05,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:01:05" (1/1) ... [2023-03-31 06:01:05,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:01:05" (1/1) ... [2023-03-31 06:01:05,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:01:05" (1/1) ... [2023-03-31 06:01:05,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:01:05" (1/1) ... [2023-03-31 06:01:05,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:01:05" (1/1) ... [2023-03-31 06:01:05,110 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:01:05" (1/1) ... [2023-03-31 06:01:05,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:01:05" (1/1) ... [2023-03-31 06:01:05,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 06:01:05,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 06:01:05,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 06:01:05,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 06:01:05,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:01:05" (1/1) ... [2023-03-31 06:01:05,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 06:01:05,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 06:01:05,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 06:01:05,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 06:01:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 06:01:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 06:01:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 06:01:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2023-03-31 06:01:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_memory [2023-03-31 06:01:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2023-03-31 06:01:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 06:01:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 06:01:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 06:01:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 06:01:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 06:01:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 06:01:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure err [2023-03-31 06:01:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_memory [2023-03-31 06:01:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 06:01:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure append [2023-03-31 06:01:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 06:01:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 06:01:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 06:01:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 06:01:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 06:01:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 06:01:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 06:01:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 06:01:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 06:01:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 06:01:05,340 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 06:01:05,342 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 06:01:05,559 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 06:01:05,589 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 06:01:05,589 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-31 06:01:05,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 06:01:05 BoogieIcfgContainer [2023-03-31 06:01:05,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 06:01:05,592 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 06:01:05,592 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 06:01:05,593 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 06:01:05,594 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 06:01:05" (1/1) ... [2023-03-31 06:01:05,594 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=IntervalDomain ♦ Max. Parallel Octagon=2 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=POLY_PAC ♦ Max. Parallel Equality=2 ♦ SizeLimitFluid Max. DAG Size=-1 [2023-03-31 06:01:05,618 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 06:01:05,618 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 06:01:05,623 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 06:01:05,626 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 06:01:05,628 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 06:01:05,786 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 50 for LOIs [2023-03-31 06:01:06,465 INFO L197 IcfgInterpreter]: Interpreting procedure err with input of size 168 for LOIs [2023-03-31 06:01:06,484 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 06:01:06,525 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 06:01:06,525 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 06:01:06,526 INFO L158 Benchmark]: Toolchain (without parser) took 1648.16ms. Allocated memory is still 273.7MB. Free memory was 222.1MB in the beginning and 199.1MB in the end (delta: 23.0MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-03-31 06:01:06,527 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory is still 133.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 06:01:06,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.41ms. Allocated memory is still 273.7MB. Free memory was 222.1MB in the beginning and 211.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 06:01:06,527 INFO L158 Benchmark]: Boogie Preprocessor took 36.43ms. Allocated memory is still 273.7MB. Free memory was 211.6MB in the beginning and 210.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 06:01:06,528 INFO L158 Benchmark]: RCFGBuilder took 478.82ms. Allocated memory is still 273.7MB. Free memory was 210.0MB in the beginning and 196.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-03-31 06:01:06,528 INFO L158 Benchmark]: Sifa took 932.98ms. Allocated memory is still 273.7MB. Free memory was 196.9MB in the beginning and 199.1MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 06:01:06,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory is still 133.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 193.41ms. Allocated memory is still 273.7MB. Free memory was 222.1MB in the beginning and 211.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.43ms. Allocated memory is still 273.7MB. Free memory was 211.6MB in the beginning and 210.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 478.82ms. Allocated memory is still 273.7MB. Free memory was 210.0MB in the beginning and 196.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Sifa took 932.98ms. Allocated memory is still 273.7MB. Free memory was 196.9MB in the beginning and 199.1MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 0.9s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 0, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 9, TOOLS_POST_TIME: 0.3s, TOOLS_POST_CALL_APPLICATIONS: 6, TOOLS_POST_CALL_TIME: 0.3s, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME: 0.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 19, TOOLS_QUANTIFIERELIM_TIME: 0.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 20, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 0, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 3, CALL_SUMMARIZER_OVERALL_TIME: 0.1s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 50, DAG_COMPRESSION_RETAINED_NODES: 34 - UnprovableResult [Line: 10]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Over-approximation of reachable states at this location is 21#(and (exists ((|v_old(#memory_$Pointer$.offset)_AFTER_CALL_1| (Array Int (Array Int Int))) (|v_old(#memory_int)_BEFORE_CALL_3| (Array Int (Array Int Int))) (|v_old(#valid)_BEFORE_CALL_3| (Array Int Int)) (|v_#memory_int_4| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_1| (Array Int (Array Int Int))) (|v_main_~#m~0.base_BEFORE_CALL_3| Int) (|v_old(#memory_$Pointer$.base)_BEFORE_CALL_3| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.offset)_BEFORE_CALL_3| (Array Int (Array Int Int)))) (and (= (select (select |v_old(#memory_int)_BEFORE_CALL_3| 1) 0) 48) (= (select (select |v_old(#memory_int)_BEFORE_CALL_3| 1) 1) 0) (= (select |v_old(#valid)_BEFORE_CALL_3| 0) 0) (= (store |v_old(#memory_$Pointer$.offset)_BEFORE_CALL_3| |v_main_~#m~0.base_BEFORE_CALL_3| (store (store (select |v_old(#memory_$Pointer$.offset)_BEFORE_CALL_3| |v_main_~#m~0.base_BEFORE_CALL_3|) 4 0) 0 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_1| |v_main_~#m~0.base_BEFORE_CALL_3|) 0))) |v_old(#memory_$Pointer$.offset)_AFTER_CALL_1|) (< |#StackHeapBarrier| |v_main_~#m~0.base_BEFORE_CALL_3|) (= (select |v_old(#valid)_BEFORE_CALL_3| |v_main_~#m~0.base_BEFORE_CALL_3|) 0) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_1| (store |v_old(#memory_$Pointer$.base)_BEFORE_CALL_3| |v_main_~#m~0.base_BEFORE_CALL_3| (store (store (select |v_old(#memory_$Pointer$.base)_BEFORE_CALL_3| |v_main_~#m~0.base_BEFORE_CALL_3|) 4 0) 0 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_1| |v_main_~#m~0.base_BEFORE_CALL_3|) 0)))) (not (= |v_main_~#m~0.base_BEFORE_CALL_3| 0)) (= (select |v_old(#valid)_BEFORE_CALL_3| 2) 1) (= (store |v_old(#memory_int)_BEFORE_CALL_3| |v_main_~#m~0.base_BEFORE_CALL_3| (store (select |v_old(#memory_int)_BEFORE_CALL_3| |v_main_~#m~0.base_BEFORE_CALL_3|) 4 (select (select |v_#memory_int_4| |v_main_~#m~0.base_BEFORE_CALL_3|) 4))) |v_#memory_int_4|) (= (select |v_old(#valid)_BEFORE_CALL_3| 1) 1) (= (select |v_old(#valid)_BEFORE_CALL_3| 3) 1))) (= ~i~0 1) (= |#NULL.offset| 0) (exists ((|v_old(#length)_BEFORE_CALL_3| (Array Int Int))) (and (= (select |v_old(#length)_BEFORE_CALL_3| 2) 17) (= 2 (select |v_old(#length)_BEFORE_CALL_3| 1)) (= (select |v_old(#length)_BEFORE_CALL_3| 3) 12))) (exists ((|v_#memory_$Pointer$.base_22| (Array Int (Array Int Int))) (v_main_~l~0.base_11 Int) (|v_old(#memory_int)_AFTER_CALL_2| (Array Int (Array Int Int))) (|v_#memory_int_23| (Array Int (Array Int Int))) (|v_#memory_int_24| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_17| (Array Int (Array Int Int))) (|v_#length_21| (Array Int Int)) (|v_#memory_$Pointer$.base_24| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_23| (Array Int (Array Int Int))) (v_main_~l~0.base_BEFORE_CALL_3 Int) (|v_#memory_$Pointer$.offset_22| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_24| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_23| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_17| (Array Int (Array Int Int))) (|v_#valid_28| (Array Int Int)) (|v_#valid_27| (Array Int Int))) (and (= (store |v_#memory_int_24| v_main_~l~0.base_11 (store (store (select |v_#memory_int_24| v_main_~l~0.base_11) 0 1) 4 (select (select |v_old(#memory_int)_AFTER_CALL_2| v_main_~l~0.base_11) 4))) |v_old(#memory_int)_AFTER_CALL_2|) (not (= 0 v_main_~l~0.base_BEFORE_CALL_3)) (= (store |v_#length_21| v_main_~l~0.base_BEFORE_CALL_3 8) |#length|) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| v_main_~l~0.base_BEFORE_CALL_3) 4)) (+ 4 (select (select |#memory_$Pointer$.offset| v_main_~l~0.base_BEFORE_CALL_3) 4)))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| v_main_~l~0.base_BEFORE_CALL_3) 4)) (+ 4 (select (select |#memory_$Pointer$.offset| v_main_~l~0.base_BEFORE_CALL_3) 4)))) 0) (= (store |v_#memory_$Pointer$.base_22| v_main_~l~0.base_11 (store (select |v_#memory_$Pointer$.base_22| v_main_~l~0.base_11) 0 (select (select |v_#memory_$Pointer$.base_17| v_main_~l~0.base_11) 0))) |v_#memory_$Pointer$.base_17|) (= (store |v_#memory_$Pointer$.offset_23| v_main_~l~0.base_11 (store (select |v_#memory_$Pointer$.offset_23| v_main_~l~0.base_11) 0 (select (select |v_#memory_$Pointer$.offset_24| v_main_~l~0.base_11) 0))) |v_#memory_$Pointer$.offset_24|) (= (store |v_#memory_$Pointer$.offset_22| v_main_~l~0.base_BEFORE_CALL_3 (store (select |v_#memory_$Pointer$.offset_22| v_main_~l~0.base_BEFORE_CALL_3) 0 (select (select |v_#memory_$Pointer$.offset_17| v_main_~l~0.base_BEFORE_CALL_3) 0))) |v_#memory_$Pointer$.offset_17|) (= (store |v_#valid_28| v_main_~l~0.base_BEFORE_CALL_3 1) |#valid|) (= (select |v_#valid_28| v_main_~l~0.base_BEFORE_CALL_3) 0) (< v_main_~l~0.base_BEFORE_CALL_3 |#StackHeapBarrier|) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_17| v_main_~l~0.base_BEFORE_CALL_3 (store (select |v_#memory_$Pointer$.offset_17| v_main_~l~0.base_BEFORE_CALL_3) 4 0))) (= |#memory_int| (store |v_#memory_int_23| v_main_~l~0.base_BEFORE_CALL_3 (store (store (select |v_#memory_int_23| v_main_~l~0.base_BEFORE_CALL_3) 0 2) 4 (select (select |#memory_int| v_main_~l~0.base_BEFORE_CALL_3) 4)))) (< v_main_~l~0.base_11 |#StackHeapBarrier|) (= (store |v_#memory_$Pointer$.base_23| v_main_~l~0.base_BEFORE_CALL_3 (store (select |v_#memory_$Pointer$.base_23| v_main_~l~0.base_BEFORE_CALL_3) 0 (select (select |v_#memory_$Pointer$.base_24| v_main_~l~0.base_BEFORE_CALL_3) 0))) |v_#memory_$Pointer$.base_24|) (= (store |v_#memory_$Pointer$.base_24| v_main_~l~0.base_BEFORE_CALL_3 (store (select |v_#memory_$Pointer$.base_24| v_main_~l~0.base_BEFORE_CALL_3) 4 v_main_~l~0.base_11)) |#memory_$Pointer$.base|) (= (select |v_#valid_27| v_main_~l~0.base_11) 0) (not (= v_main_~l~0.base_11 0)))) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 06:01:06,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...