/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 OctagonDomain -i ../sv-benchmarks/c/array-crafted/xor4.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 09:20:02,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 09:20:02,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 09:20:02,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 09:20:02,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 09:20:02,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 09:20:02,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 09:20:02,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 09:20:02,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 09:20:02,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 09:20:02,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 09:20:02,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 09:20:02,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 09:20:02,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 09:20:02,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 09:20:02,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 09:20:02,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 09:20:02,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 09:20:02,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 09:20:02,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 09:20:02,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 09:20:02,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 09:20:02,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 09:20:02,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 09:20:02,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 09:20:02,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 09:20:02,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 09:20:02,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 09:20:02,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 09:20:02,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 09:20:02,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 09:20:02,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 09:20:02,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 09:20:02,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 09:20:02,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 09:20:02,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 09:20:02,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 09:20:02,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 09:20:02,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 09:20:02,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 09:20:02,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 09:20:02,972 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 09:20:02,998 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 09:20:02,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 09:20:02,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 09:20:02,999 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 09:20:03,000 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 09:20:03,000 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 09:20:03,000 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 09:20:03,000 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 09:20:03,000 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 09:20:03,000 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 09:20:03,001 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 09:20:03,001 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 09:20:03,001 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 09:20:03,001 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 09:20:03,001 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 09:20:03,001 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 09:20:03,001 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 09:20:03,001 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 09:20:03,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 09:20:03,002 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 09:20:03,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 09:20:03,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 09:20:03,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 09:20:03,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 09:20:03,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 09:20:03,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 09:20:03,002 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 09:20:03,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 09:20:03,002 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 09:20:03,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 09:20:03,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 09:20:03,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 09:20:03,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 09:20:03,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 09:20:03,003 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 09:20:03,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 09:20:03,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 09:20:03,003 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 09:20:03,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 09:20:03,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 09:20:03,004 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 09:20:03,004 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-03-31 09:20:03,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 09:20:03,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 09:20:03,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 09:20:03,274 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 09:20:03,277 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 09:20:03,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-crafted/xor4.i [2023-03-31 09:20:04,427 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 09:20:04,574 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 09:20:04,575 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/xor4.i [2023-03-31 09:20:04,579 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ac360906/d6098a75057141ddaffe6d5ec1b9473d/FLAG3995afcb1 [2023-03-31 09:20:04,589 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ac360906/d6098a75057141ddaffe6d5ec1b9473d [2023-03-31 09:20:04,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 09:20:04,592 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 09:20:04,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 09:20:04,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 09:20:04,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 09:20:04,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 09:20:04" (1/1) ... [2023-03-31 09:20:04,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aa7d5d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:20:04, skipping insertion in model container [2023-03-31 09:20:04,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 09:20:04" (1/1) ... [2023-03-31 09:20:04,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 09:20:04,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 09:20:04,734 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-crafted/xor4.i[1303,1316] [2023-03-31 09:20:04,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 09:20:04,743 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 09:20:04,756 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-crafted/xor4.i[1303,1316] [2023-03-31 09:20:04,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 09:20:04,766 INFO L208 MainTranslator]: Completed translation [2023-03-31 09:20:04,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:20:04 WrapperNode [2023-03-31 09:20:04,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 09:20:04,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 09:20:04,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 09:20:04,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 09:20:04,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:20:04" (1/1) ... [2023-03-31 09:20:04,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:20:04" (1/1) ... [2023-03-31 09:20:04,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:20:04" (1/1) ... [2023-03-31 09:20:04,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:20:04" (1/1) ... [2023-03-31 09:20:04,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:20:04" (1/1) ... [2023-03-31 09:20:04,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:20:04" (1/1) ... [2023-03-31 09:20:04,789 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:20:04" (1/1) ... [2023-03-31 09:20:04,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:20:04" (1/1) ... [2023-03-31 09:20:04,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 09:20:04,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 09:20:04,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 09:20:04,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 09:20:04,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:20:04" (1/1) ... [2023-03-31 09:20:04,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 09:20:04,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 09:20:04,832 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 09:20:04,834 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 09:20:04,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 09:20:04,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 09:20:04,862 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 09:20:04,862 INFO L138 BoogieDeclarations]: Found implementation of procedure xor [2023-03-31 09:20:04,862 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 09:20:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 09:20:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 09:20:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-03-31 09:20:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-03-31 09:20:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 09:20:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 09:20:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 09:20:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure xor [2023-03-31 09:20:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 09:20:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 09:20:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 09:20:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 09:20:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 09:20:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 09:20:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 09:20:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 09:20:04,962 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 09:20:04,964 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 09:20:05,179 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 09:20:05,284 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 09:20:05,292 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-03-31 09:20:05,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 09:20:05 BoogieIcfgContainer [2023-03-31 09:20:05,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 09:20:05,295 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 09:20:05,295 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 09:20:05,295 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 09:20:05,296 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 09:20:05" (1/1) ... [2023-03-31 09:20:05,297 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=OctagonDomain ♦ 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 09:20:05,327 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 09:20:05,328 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 09:20:05,331 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 09:20:05,335 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 09:20:05,336 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 09:20:05,494 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 61 for LOIs [2023-03-31 09:20:05,743 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2023-03-31 09:20:06,243 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 09:20:06,254 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 09:20:06,254 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 09:20:06,255 INFO L158 Benchmark]: Toolchain (without parser) took 1663.24ms. Allocated memory is still 333.4MB. Free memory was 278.2MB in the beginning and 219.8MB in the end (delta: 58.4MB). Peak memory consumption was 59.1MB. Max. memory is 8.0GB. [2023-03-31 09:20:06,256 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 182.5MB. Free memory was 133.0MB in the beginning and 132.8MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 09:20:06,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 173.87ms. Allocated memory is still 333.4MB. Free memory was 278.2MB in the beginning and 267.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 09:20:06,257 INFO L158 Benchmark]: Boogie Preprocessor took 26.47ms. Allocated memory is still 333.4MB. Free memory was 267.4MB in the beginning and 265.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 09:20:06,260 INFO L158 Benchmark]: RCFGBuilder took 499.87ms. Allocated memory is still 333.4MB. Free memory was 265.6MB in the beginning and 246.4MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-03-31 09:20:06,261 INFO L158 Benchmark]: Sifa took 959.31ms. Allocated memory is still 333.4MB. Free memory was 246.4MB in the beginning and 219.8MB in the end (delta: 26.6MB). Peak memory consumption was 27.6MB. Max. memory is 8.0GB. [2023-03-31 09:20:06,265 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 182.5MB. Free memory was 133.0MB in the beginning and 132.8MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 173.87ms. Allocated memory is still 333.4MB. Free memory was 278.2MB in the beginning and 267.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.47ms. Allocated memory is still 333.4MB. Free memory was 267.4MB in the beginning and 265.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 499.87ms. Allocated memory is still 333.4MB. Free memory was 265.6MB in the beginning and 246.4MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Sifa took 959.31ms. Allocated memory is still 333.4MB. Free memory was 246.4MB in the beginning and 219.8MB in the end (delta: 26.6MB). Peak memory consumption was 27.6MB. 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: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 0, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 17, TOOLS_POST_TIME: 0.4s, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 26, TOOLS_QUANTIFIERELIM_TIME: 0.7s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 40, 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: 3, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 0, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 0.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.4s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.3s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.3s, 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: 65, DAG_COMPRESSION_RETAINED_NODES: 38 - UnprovableResult [Line: 53]: 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 31#(and (<= 0 (+ |main_~#x~0.base| main_~ret~0 2147483646)) (<= 1 |#StackHeapBarrier|) (<= 2 |main_~#x~0.base|) (<= 0 (+ main_~ret2~0 2147483648)) (<= 100000 (+ main_~i~2 main_~i~1)) (<= 0 (+ 2147483647 main_~ret~0 |#StackHeapBarrier|)) (<= 0 (+ main_~ret~0 2147483648)) (<= 0 (+ main_~i~1 main_~ret2~0 2147383648)) (<= main_~ret5~0 2147483647) (<= main_~ret~0 (+ 2147483645 |main_~#x~0.base|)) (<= 1 (+ main_~i~2 |#StackHeapBarrier|)) (or (exists ((v_xor_~res~0_BEFORE_RETURN_3 Int)) (and (= (+ main_~ret5~0 4294967296) (mod v_xor_~res~0_BEFORE_RETURN_3 4294967296)) (< 2147483647 (mod v_xor_~res~0_BEFORE_RETURN_3 4294967296)))) (exists ((v_xor_~res~0_BEFORE_RETURN_3 Int)) (and (<= (mod v_xor_~res~0_BEFORE_RETURN_3 4294967296) 2147483647) (= main_~ret5~0 (mod v_xor_~res~0_BEFORE_RETURN_3 4294967296))))) (<= main_~ret2~0 (+ 2147483647 main_~i~2)) (or (not (= main_~ret~0 main_~ret2~0)) (not (= main_~ret~0 main_~ret5~0))) (<= main_~ret~0 (+ 2147483647 main_~i~2)) (<= 0 (+ main_~ret5~0 2147483648)) (<= main_~ret2~0 (+ main_~i~1 2147383647)) (<= (+ main_~ret~0 main_~ret2~0) 4294967294) (<= 100001 (+ main_~i~1 |#StackHeapBarrier|)) (<= 0 (+ main_~ret~0 main_~i~2 2147483648)) (<= 99999 main_~i~2) (<= main_~ret2~0 (+ |#StackHeapBarrier| 2147483646)) (<= 0 (+ main_~ret~0 main_~ret2~0 4294967296)) (<= main_~ret~0 (+ |#StackHeapBarrier| 2147483646)) (<= main_~ret~0 (+ 4294967295 main_~ret2~0)) (<= main_~ret2~0 (+ main_~ret~0 4294967295)) (<= main_~ret~0 2147483647) (<= main_~ret~0 (+ main_~i~1 2147383647)) (<= 3 (+ |main_~#x~0.base| |#StackHeapBarrier|)) (<= 0 (+ main_~ret~0 main_~i~1 2147383648)) (<= 0 (+ 2147483647 main_~ret2~0 |#StackHeapBarrier|)) (<= 0 (+ |main_~#x~0.base| main_~ret2~0 2147483646)) (<= main_~ret2~0 2147483647) (= |main_~#x~0.offset| 0) (<= 2 (+ |main_~#x~0.base| main_~i~2)) (= |#NULL.offset| 0) (<= main_~ret2~0 (+ 2147483645 |main_~#x~0.base|)) (exists ((|v_#memory_int_39| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_39| |main_~#x~0.base| (store (select |v_#memory_int_39| |main_~#x~0.base|) 399996 main_~temp~0)))) (<= 0 (+ main_~i~2 main_~ret2~0 2147483648)) (<= 100000 main_~i~1) (<= 100002 (+ |main_~#x~0.base| main_~i~1)) (<= (+ |#StackHeapBarrier| 1) |main_~#x~0.base|) (= |#NULL.base| 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 09:20:06,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...