/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-fpi/modsf.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 14:48:59,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 14:48:59,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 14:48:59,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 14:48:59,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 14:48:59,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 14:48:59,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 14:48:59,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 14:48:59,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 14:48:59,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 14:48:59,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 14:48:59,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 14:48:59,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 14:48:59,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 14:48:59,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 14:48:59,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 14:48:59,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 14:48:59,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 14:48:59,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 14:48:59,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 14:48:59,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 14:48:59,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 14:48:59,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 14:48:59,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 14:48:59,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 14:48:59,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 14:48:59,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 14:48:59,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 14:48:59,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 14:48:59,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 14:48:59,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 14:48:59,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 14:48:59,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 14:48:59,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 14:48:59,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 14:48:59,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 14:48:59,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 14:48:59,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 14:48:59,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 14:48:59,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 14:48:59,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 14:48:59,442 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 14:48:59,470 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 14:48:59,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 14:48:59,470 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 14:48:59,471 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 14:48:59,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 14:48:59,471 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 14:48:59,472 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 14:48:59,472 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 14:48:59,472 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 14:48:59,472 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 14:48:59,473 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 14:48:59,473 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 14:48:59,473 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 14:48:59,473 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 14:48:59,473 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 14:48:59,473 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 14:48:59,473 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 14:48:59,474 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 14:48:59,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 14:48:59,475 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 14:48:59,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 14:48:59,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 14:48:59,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 14:48:59,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 14:48:59,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 14:48:59,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 14:48:59,476 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 14:48:59,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 14:48:59,476 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 14:48:59,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 14:48:59,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 14:48:59,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 14:48:59,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 14:48:59,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 14:48:59,477 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 14:48:59,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 14:48:59,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 14:48:59,477 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 14:48:59,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 14:48:59,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 14:48:59,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 14:48:59,478 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-03-31 14:48:59,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 14:48:59,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 14:48:59,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 14:48:59,753 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 14:48:59,754 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 14:48:59,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/modsf.c [2023-03-31 14:49:01,014 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 14:49:01,208 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 14:49:01,209 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/modsf.c [2023-03-31 14:49:01,214 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35c7626af/c1a9bc5b25c946499f27957904ab73e0/FLAGb3bd072f9 [2023-03-31 14:49:01,224 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35c7626af/c1a9bc5b25c946499f27957904ab73e0 [2023-03-31 14:49:01,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 14:49:01,227 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 14:49:01,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 14:49:01,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 14:49:01,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 14:49:01,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 02:49:01" (1/1) ... [2023-03-31 14:49:01,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29eaf76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:49:01, skipping insertion in model container [2023-03-31 14:49:01,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 02:49:01" (1/1) ... [2023-03-31 14:49:01,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 14:49:01,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 14:49:01,367 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-fpi/modsf.c[588,601] [2023-03-31 14:49:01,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 14:49:01,397 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 14:49:01,408 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-fpi/modsf.c[588,601] [2023-03-31 14:49:01,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 14:49:01,429 INFO L208 MainTranslator]: Completed translation [2023-03-31 14:49:01,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:49:01 WrapperNode [2023-03-31 14:49:01,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 14:49:01,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 14:49:01,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 14:49:01,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 14:49:01,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:49:01" (1/1) ... [2023-03-31 14:49:01,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:49:01" (1/1) ... [2023-03-31 14:49:01,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:49:01" (1/1) ... [2023-03-31 14:49:01,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:49:01" (1/1) ... [2023-03-31 14:49:01,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:49:01" (1/1) ... [2023-03-31 14:49:01,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:49:01" (1/1) ... [2023-03-31 14:49:01,466 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:49:01" (1/1) ... [2023-03-31 14:49:01,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:49:01" (1/1) ... [2023-03-31 14:49:01,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 14:49:01,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 14:49:01,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 14:49:01,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 14:49:01,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:49:01" (1/1) ... [2023-03-31 14:49:01,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 14:49:01,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 14:49:01,561 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 14:49:01,583 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 14:49:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 14:49:01,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 14:49:01,610 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 14:49:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 14:49:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-31 14:49:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 14:49:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 14:49:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 14:49:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 14:49:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 14:49:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 14:49:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-31 14:49:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 14:49:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 14:49:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 14:49:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 14:49:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 14:49:01,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 14:49:01,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 14:49:01,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 14:49:01,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 14:49:01,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 14:49:01,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 14:49:01,699 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 14:49:01,702 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 14:49:01,935 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 14:49:01,982 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 14:49:01,982 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 14:49:01,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 02:49:01 BoogieIcfgContainer [2023-03-31 14:49:01,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 14:49:01,985 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 14:49:01,986 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 14:49:01,986 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 14:49:01,987 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 02:49:01" (1/1) ... [2023-03-31 14:49:01,987 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 14:49:02,035 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 14:49:02,036 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 14:49:02,041 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 14:49:02,046 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 14:49:02,048 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 14:49:02,335 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 74 for LOIs [2023-03-31 14:49:07,324 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 96 for LOIs [2023-03-31 14:49:07,365 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 14:49:07,377 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 14:49:07,377 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 14:49:07,378 INFO L158 Benchmark]: Toolchain (without parser) took 6150.73ms. Allocated memory was 183.5MB in the beginning and 478.2MB in the end (delta: 294.6MB). Free memory was 133.8MB in the beginning and 280.1MB in the end (delta: -146.3MB). Peak memory consumption was 149.9MB. Max. memory is 8.0GB. [2023-03-31 14:49:07,379 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory was 129.7MB in the beginning and 129.5MB in the end (delta: 140.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 14:49:07,379 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.02ms. Allocated memory is still 183.5MB. Free memory was 133.5MB in the beginning and 122.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 14:49:07,380 INFO L158 Benchmark]: Boogie Preprocessor took 38.60ms. Allocated memory is still 183.5MB. Free memory was 122.7MB in the beginning and 120.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 14:49:07,380 INFO L158 Benchmark]: RCFGBuilder took 515.33ms. Allocated memory is still 183.5MB. Free memory was 120.9MB in the beginning and 104.9MB in the end (delta: 16.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-03-31 14:49:07,381 INFO L158 Benchmark]: Sifa took 5391.83ms. Allocated memory was 183.5MB in the beginning and 478.2MB in the end (delta: 294.6MB). Free memory was 104.9MB in the beginning and 280.1MB in the end (delta: -175.3MB). Peak memory consumption was 120.5MB. Max. memory is 8.0GB. [2023-03-31 14:49:07,383 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 183.5MB. Free memory was 129.7MB in the beginning and 129.5MB in the end (delta: 140.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 199.02ms. Allocated memory is still 183.5MB. Free memory was 133.5MB in the beginning and 122.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.60ms. Allocated memory is still 183.5MB. Free memory was 122.7MB in the beginning and 120.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 515.33ms. Allocated memory is still 183.5MB. Free memory was 120.9MB in the beginning and 104.9MB in the end (delta: 16.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Sifa took 5391.83ms. Allocated memory was 183.5MB in the beginning and 478.2MB in the end (delta: 294.6MB). Free memory was 104.9MB in the beginning and 280.1MB in the end (delta: -175.3MB). Peak memory consumption was 120.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 5.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 1, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 72, TOOLS_POST_TIME: 2.3s, TOOLS_POST_CALL_APPLICATIONS: 13, TOOLS_POST_CALL_TIME: 0.4s, TOOLS_POST_RETURN_APPLICATIONS: 11, TOOLS_POST_RETURN_TIME: 0.3s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 96, TOOLS_QUANTIFIERELIM_TIME: 2.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 184, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 1, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 40, DOMAIN_WIDEN_TIME: 2.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 45, DOMAIN_ISSUBSETEQ_TIME: 0.2s, DOMAIN_ISBOTTOM_APPLICATIONS: 1, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 5, LOOP_SUMMARIZER_CACHE_MISSES: 5, LOOP_SUMMARIZER_OVERALL_TIME: 4.7s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 4.7s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 45, CALL_SUMMARIZER_APPLICATIONS: 11, 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: 107, DAG_COMPRESSION_RETAINED_NODES: 55 - UnprovableResult [Line: 15]: 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 139#(and (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (not (= |#StackHeapBarrier| 0)) (= |#NULL.offset| 0) (exists ((|v_old(#memory_int)_BEFORE_CALL_11| (Array Int (Array Int Int))) (|v_old(#valid)_BEFORE_CALL_11| (Array Int Int)) (|v_main_~#sum~0.base_BEFORE_CALL_10| Int) (|v_old(#length)_BEFORE_CALL_11| (Array Int Int))) (and (= 46 (select (select |v_old(#memory_int)_BEFORE_CALL_11| 2) 5)) (= 115 (select (select |v_old(#memory_int)_BEFORE_CALL_11| 2) 3)) (not (= |v_main_~#sum~0.base_BEFORE_CALL_10| 1)) (not (= (select |v_old(#memory_int)_BEFORE_CALL_11| 2) |v_old(#valid)_BEFORE_CALL_11|)) (= (select (select |v_old(#memory_int)_BEFORE_CALL_11| 2) 1) 111) (not (= |v_old(#valid)_BEFORE_CALL_11| (select |v_old(#memory_int)_BEFORE_CALL_11| 1))) (not (= 3 |v_main_~#sum~0.base_BEFORE_CALL_10|)) (not (= |#StackHeapBarrier| |v_main_~#sum~0.base_BEFORE_CALL_10|)) (not (= (select |v_old(#memory_int)_BEFORE_CALL_11| 2) (select |v_old(#memory_int)_BEFORE_CALL_11| 1))) (= (select |v_old(#valid)_BEFORE_CALL_11| |v_main_~#sum~0.base_BEFORE_CALL_10|) 0) (= 1 (select |v_old(#valid)_BEFORE_CALL_11| 2)) (not (= (select |v_old(#memory_int)_BEFORE_CALL_11| 2) |v_old(#length)_BEFORE_CALL_11|)) (= (select (select |v_old(#memory_int)_BEFORE_CALL_11| 1) 1) 0) (not (= |v_main_~#sum~0.base_BEFORE_CALL_10| 0)) (= (select (select |v_old(#memory_int)_BEFORE_CALL_11| 2) 6) 99) (not (= |v_old(#length)_BEFORE_CALL_11| (select |v_old(#memory_int)_BEFORE_CALL_11| 1))) (= (select (select |v_old(#memory_int)_BEFORE_CALL_11| 2) 0) 109) (not (= 2 |v_main_~#sum~0.base_BEFORE_CALL_10|)) (= 12 (select |v_old(#length)_BEFORE_CALL_11| 3)) (= (select (select |v_old(#memory_int)_BEFORE_CALL_11| 2) 7) 0) (= 48 (select (select |v_old(#memory_int)_BEFORE_CALL_11| 1) 0)) (= (select |v_old(#valid)_BEFORE_CALL_11| 1) 1) (= (select (select |v_old(#memory_int)_BEFORE_CALL_11| 2) 4) 102) (= 8 (select |v_old(#length)_BEFORE_CALL_11| 2)) (= (select |v_old(#valid)_BEFORE_CALL_11| 3) 1) (= (select |v_old(#length)_BEFORE_CALL_11| 1) 2) (not (= |v_old(#valid)_BEFORE_CALL_11| |v_old(#length)_BEFORE_CALL_11|)) (= (select (select |v_old(#memory_int)_BEFORE_CALL_11| 2) 2) 100) (= (select |v_old(#valid)_BEFORE_CALL_11| 0) 0))) (= |#NULL.base| 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 14:49:07,399 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...