/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/loop-invgen/NetBSD_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 16:51:19,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 16:51:19,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 16:51:19,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 16:51:19,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 16:51:19,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 16:51:19,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 16:51:19,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 16:51:19,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 16:51:19,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 16:51:19,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 16:51:19,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 16:51:19,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 16:51:19,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 16:51:19,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 16:51:19,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 16:51:19,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 16:51:19,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 16:51:19,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 16:51:19,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 16:51:19,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 16:51:19,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 16:51:19,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 16:51:19,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 16:51:19,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 16:51:19,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 16:51:19,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 16:51:19,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 16:51:19,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 16:51:19,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 16:51:19,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 16:51:19,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 16:51:19,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 16:51:19,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 16:51:19,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 16:51:19,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 16:51:19,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 16:51:19,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 16:51:19,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 16:51:19,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 16:51:19,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 16:51:19,356 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 16:51:19,374 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 16:51:19,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 16:51:19,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 16:51:19,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 16:51:19,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 16:51:19,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 16:51:19,375 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 16:51:19,375 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 16:51:19,375 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 16:51:19,375 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 16:51:19,376 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 16:51:19,376 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 16:51:19,376 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 16:51:19,376 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 16:51:19,376 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 16:51:19,376 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 16:51:19,376 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 16:51:19,376 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 16:51:19,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 16:51:19,377 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 16:51:19,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 16:51:19,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 16:51:19,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 16:51:19,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 16:51:19,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 16:51:19,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 16:51:19,377 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 16:51:19,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 16:51:19,378 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 16:51:19,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 16:51:19,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 16:51:19,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 16:51:19,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 16:51:19,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 16:51:19,378 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 16:51:19,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 16:51:19,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 16:51:19,379 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 16:51:19,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 16:51:19,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 16:51:19,379 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 16:51:19,379 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-03-31 16:51:19,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 16:51:19,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 16:51:19,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 16:51:19,574 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 16:51:19,575 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 16:51:19,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2023-03-31 16:51:20,650 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 16:51:20,798 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 16:51:20,799 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2023-03-31 16:51:20,803 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6df8ac0d5/c9de000a41c94f93b381297ae310cce8/FLAG17c99b503 [2023-03-31 16:51:20,812 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6df8ac0d5/c9de000a41c94f93b381297ae310cce8 [2023-03-31 16:51:20,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 16:51:20,815 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 16:51:20,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 16:51:20,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 16:51:20,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 16:51:20,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 04:51:20" (1/1) ... [2023-03-31 16:51:20,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a98df84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:51:20, skipping insertion in model container [2023-03-31 16:51:20,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 04:51:20" (1/1) ... [2023-03-31 16:51:20,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 16:51:20,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 16:51:20,922 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/loop-invgen/NetBSD_loop.i[893,906] [2023-03-31 16:51:20,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 16:51:20,936 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 16:51:20,944 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/loop-invgen/NetBSD_loop.i[893,906] [2023-03-31 16:51:20,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 16:51:20,955 INFO L208 MainTranslator]: Completed translation [2023-03-31 16:51:20,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:51:20 WrapperNode [2023-03-31 16:51:20,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 16:51:20,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 16:51:20,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 16:51:20,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 16:51:20,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:51:20" (1/1) ... [2023-03-31 16:51:20,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:51:20" (1/1) ... [2023-03-31 16:51:20,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:51:20" (1/1) ... [2023-03-31 16:51:20,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:51:20" (1/1) ... [2023-03-31 16:51:20,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:51:20" (1/1) ... [2023-03-31 16:51:20,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:51:20" (1/1) ... [2023-03-31 16:51:20,982 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:51:20" (1/1) ... [2023-03-31 16:51:20,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:51:20" (1/1) ... [2023-03-31 16:51:20,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 16:51:20,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 16:51:20,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 16:51:20,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 16:51:20,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:51:20" (1/1) ... [2023-03-31 16:51:20,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 16:51:21,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 16:51:21,018 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 16:51:21,024 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 16:51:21,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 16:51:21,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 16:51:21,046 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 16:51:21,046 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 16:51:21,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-31 16:51:21,046 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 16:51:21,046 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 16:51:21,046 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 16:51:21,046 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-03-31 16:51:21,046 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-03-31 16:51:21,046 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 16:51:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 16:51:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 16:51:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-31 16:51:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 16:51:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 16:51:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 16:51:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 16:51:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 16:51:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 16:51:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 16:51:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 16:51:21,132 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 16:51:21,134 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 16:51:21,278 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 16:51:21,303 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 16:51:21,304 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 16:51:21,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 04:51:21 BoogieIcfgContainer [2023-03-31 16:51:21,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 16:51:21,309 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 16:51:21,309 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 16:51:21,309 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 16:51:21,310 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 04:51:21" (1/1) ... [2023-03-31 16:51:21,310 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 16:51:21,362 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 16:51:21,362 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 16:51:21,366 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 16:51:21,380 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 16:51:21,381 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 16:51:21,481 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 30 for LOIs [2023-03-31 16:51:22,105 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 47 for LOIs [2023-03-31 16:51:22,128 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 16:51:22,139 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 16:51:22,139 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 16:51:22,140 INFO L158 Benchmark]: Toolchain (without parser) took 1325.18ms. Allocated memory is still 252.7MB. Free memory was 206.6MB in the beginning and 222.5MB in the end (delta: -15.9MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 16:51:22,140 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 181.4MB. Free memory is still 132.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 16:51:22,141 INFO L158 Benchmark]: CACSL2BoogieTranslator took 140.64ms. Allocated memory is still 252.7MB. Free memory was 206.6MB in the beginning and 196.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 16:51:22,142 INFO L158 Benchmark]: Boogie Preprocessor took 31.08ms. Allocated memory is still 252.7MB. Free memory was 196.1MB in the beginning and 194.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-03-31 16:51:22,142 INFO L158 Benchmark]: RCFGBuilder took 319.42ms. Allocated memory is still 252.7MB. Free memory was 194.5MB in the beginning and 182.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-03-31 16:51:22,145 INFO L158 Benchmark]: Sifa took 830.16ms. Allocated memory is still 252.7MB. Free memory was 181.9MB in the beginning and 222.5MB in the end (delta: -40.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 16:51:22,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 181.4MB. Free memory is still 132.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 140.64ms. Allocated memory is still 252.7MB. Free memory was 206.6MB in the beginning and 196.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.08ms. Allocated memory is still 252.7MB. Free memory was 196.1MB in the beginning and 194.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 319.42ms. Allocated memory is still 252.7MB. Free memory was 194.5MB in the beginning and 182.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Sifa took 830.16ms. Allocated memory is still 252.7MB. Free memory was 181.9MB in the beginning and 222.5MB in the end (delta: -40.5MB). 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: 0.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 2, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 18, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 11, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 8, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 37, TOOLS_QUANTIFIERELIM_TIME: 0.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 39, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 2, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 2, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 8, CALL_SUMMARIZER_CACHE_MISSES: 2, 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: 57, DAG_COMPRESSION_RETAINED_NODES: 36 - UnprovableResult [Line: 19]: 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 43#(and (not (= |#length| (select |#memory_int| 1))) (= 2 (select |#length| 1)) (= 9 (select |#length| 2)) (not (= |#length| |#valid|)) (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (not (= |#StackHeapBarrier| 0)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (not (= |#valid| (select |#memory_int| 1))) (= (select (select |#memory_int| 1) 0) 48) (= (select (select |#memory_int| 1) 1) 0) (= |#NULL.base| 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 16:51:22,166 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...