/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 EqDomain -i ../sv-benchmarks/c/array-examples/standard_sentinel-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 14:46:13,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 14:46:13,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 14:46:13,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 14:46:13,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 14:46:13,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 14:46:13,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 14:46:13,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 14:46:13,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 14:46:13,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 14:46:13,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 14:46:13,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 14:46:13,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 14:46:13,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 14:46:13,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 14:46:13,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 14:46:13,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 14:46:13,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 14:46:13,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 14:46:13,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 14:46:13,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 14:46:13,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 14:46:13,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 14:46:13,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 14:46:13,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 14:46:13,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 14:46:13,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 14:46:13,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 14:46:13,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 14:46:13,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 14:46:13,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 14:46:13,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 14:46:13,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 14:46:13,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 14:46:13,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 14:46:13,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 14:46:13,738 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 14:46:13,757 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 14:46:13,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 14:46:13,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 14:46:13,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 14:46:13,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 14:46:13,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 14:46:13,759 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 14:46:13,759 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 14:46:13,759 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 14:46:13,759 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 14:46:13,760 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 14:46:13,760 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 14:46:13,760 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 14:46:13,760 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 14:46:13,760 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 14:46:13,761 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 14:46:13,761 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 14:46:13,761 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 14:46:13,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 14:46:13,762 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 14:46:13,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 14:46:13,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 14:46:13,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 14:46:13,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 14:46:13,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 14:46:13,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 14:46:13,763 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 14:46:13,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 14:46:13,764 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 14:46:13,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 14:46:13,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 14:46:13,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 14:46:13,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 14:46:13,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 14:46:13,765 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 14:46:13,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 14:46:13,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 14:46:13,765 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 14:46:13,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 14:46:13,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 14:46:13,766 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 14:46:13,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-03-31 14:46:13,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 14:46:14,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 14:46:14,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 14:46:14,021 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 14:46:14,022 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 14:46:14,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_sentinel-2.i [2023-03-31 14:46:15,186 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 14:46:15,368 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 14:46:15,369 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_sentinel-2.i [2023-03-31 14:46:15,374 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2efe8afa1/d70d3fccba8b425482b8e5de53078bc3/FLAG50f69307d [2023-03-31 14:46:15,386 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2efe8afa1/d70d3fccba8b425482b8e5de53078bc3 [2023-03-31 14:46:15,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 14:46:15,389 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 14:46:15,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 14:46:15,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 14:46:15,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 14:46:15,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 02:46:15" (1/1) ... [2023-03-31 14:46:15,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40cd903e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:46:15, skipping insertion in model container [2023-03-31 14:46:15,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 02:46:15" (1/1) ... [2023-03-31 14:46:15,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 14:46:15,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 14:46:15,532 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/array-examples/standard_sentinel-2.i[852,865] [2023-03-31 14:46:15,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 14:46:15,562 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 14:46:15,573 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/array-examples/standard_sentinel-2.i[852,865] [2023-03-31 14:46:15,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 14:46:15,595 INFO L208 MainTranslator]: Completed translation [2023-03-31 14:46:15,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:46:15 WrapperNode [2023-03-31 14:46:15,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 14:46:15,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 14:46:15,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 14:46:15,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 14:46:15,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:46:15" (1/1) ... [2023-03-31 14:46:15,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:46:15" (1/1) ... [2023-03-31 14:46:15,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:46:15" (1/1) ... [2023-03-31 14:46:15,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:46:15" (1/1) ... [2023-03-31 14:46:15,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:46:15" (1/1) ... [2023-03-31 14:46:15,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:46:15" (1/1) ... [2023-03-31 14:46:15,636 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:46:15" (1/1) ... [2023-03-31 14:46:15,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:46:15" (1/1) ... [2023-03-31 14:46:15,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 14:46:15,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 14:46:15,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 14:46:15,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 14:46:15,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:46:15" (1/1) ... [2023-03-31 14:46:15,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 14:46:15,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 14:46:15,678 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 14:46:15,705 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 14:46:15,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 14:46:15,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 14:46:15,721 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 14:46:15,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-31 14:46:15,721 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 14:46:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 14:46:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 14:46:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-03-31 14:46:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-03-31 14:46:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 14:46:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 14:46:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 14:46:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-31 14:46:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 14:46:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 14:46:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 14:46:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 14:46:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 14:46:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 14:46:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 14:46:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 14:46:15,782 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 14:46:15,786 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 14:46:15,896 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 14:46:15,916 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 14:46:15,917 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-03-31 14:46:15,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 02:46:15 BoogieIcfgContainer [2023-03-31 14:46:15,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 14:46:15,920 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 14:46:15,920 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 14:46:15,920 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 14:46:15,921 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 02:46:15" (1/1) ... [2023-03-31 14:46:15,922 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=EqDomain ♦ 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 14:46:15,967 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 14:46:15,967 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 14:46:15,971 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 14:46:15,976 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 14:46:15,977 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 14:46:16,094 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 36 for LOIs [2023-03-31 14:46:16,810 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 65 for LOIs [2023-03-31 14:46:16,879 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 14:46:16,895 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 14:46:16,896 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 14:46:16,897 INFO L158 Benchmark]: Toolchain (without parser) took 1507.29ms. Allocated memory is still 175.1MB. Free memory was 134.4MB in the beginning and 146.2MB in the end (delta: -11.8MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 14:46:16,897 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 175.1MB. Free memory is still 131.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 14:46:16,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.97ms. Allocated memory is still 175.1MB. Free memory was 134.4MB in the beginning and 124.2MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 14:46:16,899 INFO L158 Benchmark]: Boogie Preprocessor took 43.10ms. Allocated memory is still 175.1MB. Free memory was 124.2MB in the beginning and 122.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 14:46:16,899 INFO L158 Benchmark]: RCFGBuilder took 278.05ms. Allocated memory is still 175.1MB. Free memory was 122.5MB in the beginning and 110.6MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-03-31 14:46:16,903 INFO L158 Benchmark]: Sifa took 975.72ms. Allocated memory is still 175.1MB. Free memory was 110.6MB in the beginning and 146.2MB in the end (delta: -35.6MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 14:46:16,905 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 175.1MB. Free memory is still 131.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 205.97ms. Allocated memory is still 175.1MB. Free memory was 134.4MB in the beginning and 124.2MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.10ms. Allocated memory is still 175.1MB. Free memory was 124.2MB in the beginning and 122.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 278.05ms. Allocated memory is still 175.1MB. Free memory was 122.5MB in the beginning and 110.6MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Sifa took 975.72ms. Allocated memory is still 175.1MB. Free memory was 110.6MB in the beginning and 146.2MB in the end (delta: -35.6MB). 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: 2, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 20, TOOLS_POST_TIME: 0.4s, TOOLS_POST_CALL_APPLICATIONS: 3, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 24, TOOLS_QUANTIFIERELIM_TIME: 0.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 39, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 2, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 2, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 0.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, 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: 92, DAG_COMPRESSION_RETAINED_NODES: 39 - UnprovableResult [Line: 14]: 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 32#(and (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (not (= |#StackHeapBarrier| 0)) (= |#NULL.offset| 0) (exists ((|v_old(#length)_BEFORE_CALL_1| (Array Int Int)) (|v_old(#memory_int)_BEFORE_CALL_1| (Array Int (Array Int Int))) (|v_old(#valid)_BEFORE_CALL_1| (Array Int Int)) (|v_main_~#a~0.base_BEFORE_CALL_1| Int)) (and (not (= |v_old(#valid)_BEFORE_CALL_1| |v_old(#length)_BEFORE_CALL_1|)) (= (select |v_old(#length)_BEFORE_CALL_1| 2) 22) (not (= (select |v_old(#memory_int)_BEFORE_CALL_1| 1) |v_old(#valid)_BEFORE_CALL_1|)) (= 48 (select (select |v_old(#memory_int)_BEFORE_CALL_1| 1) 0)) (= (select |v_old(#valid)_BEFORE_CALL_1| 1) 1) (not (= |#StackHeapBarrier| |v_main_~#a~0.base_BEFORE_CALL_1|)) (= 2 (select |v_old(#length)_BEFORE_CALL_1| 1)) (not (= 0 |v_main_~#a~0.base_BEFORE_CALL_1|)) (= (select |v_old(#valid)_BEFORE_CALL_1| 2) 1) (not (= (select |v_old(#memory_int)_BEFORE_CALL_1| 1) |v_old(#length)_BEFORE_CALL_1|)) (not (= 1 |v_main_~#a~0.base_BEFORE_CALL_1|)) (= (select |v_old(#valid)_BEFORE_CALL_1| 0) 0) (= (select (select |v_old(#memory_int)_BEFORE_CALL_1| 1) 1) 0) (= (select |v_old(#valid)_BEFORE_CALL_1| |v_main_~#a~0.base_BEFORE_CALL_1|) 0) (not (= 2 |v_main_~#a~0.base_BEFORE_CALL_1|)))) (= |#NULL.base| 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 14:46:16,924 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...