/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/SifaC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/eca-rers2012/Problem15_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 05:24:29,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 05:24:29,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 05:24:29,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 05:24:29,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 05:24:29,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 05:24:29,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 05:24:29,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 05:24:29,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 05:24:29,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 05:24:29,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 05:24:29,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 05:24:29,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 05:24:29,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 05:24:29,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 05:24:29,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 05:24:29,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 05:24:29,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 05:24:29,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 05:24:29,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 05:24:29,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 05:24:29,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 05:24:29,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 05:24:29,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 05:24:29,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 05:24:29,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 05:24:29,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 05:24:29,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 05:24:29,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 05:24:29,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 05:24:29,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 05:24:29,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 05:24:29,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 05:24:29,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 05:24:29,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 05:24:29,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 05:24:29,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 05:24:29,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 05:24:29,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 05:24:29,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 05:24:29,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 05:24:29,274 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 05:24:29,292 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 05:24:29,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 05:24:29,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 05:24:29,293 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 05:24:29,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 05:24:29,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 05:24:29,294 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 05:24:29,295 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 05:24:29,295 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 05:24:29,295 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 05:24:29,295 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 05:24:29,295 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 05:24:29,296 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 05:24:29,296 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 05:24:29,296 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 05:24:29,296 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 05:24:29,296 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 05:24:29,297 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 05:24:29,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 05:24:29,297 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 05:24:29,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 05:24:29,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 05:24:29,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 05:24:29,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 05:24:29,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 05:24:29,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 05:24:29,299 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 05:24:29,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 05:24:29,299 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 05:24:29,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 05:24:29,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 05:24:29,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 05:24:29,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 05:24:29,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 05:24:29,300 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 05:24:29,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 05:24:29,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 05:24:29,300 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 05:24:29,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 05:24:29,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 05:24:29,301 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 05:24:29,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 05:24:29,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 05:24:29,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 05:24:29,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 05:24:29,534 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 05:24:29,535 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 05:24:29,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label20.c [2023-03-31 05:24:30,721 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 05:24:31,130 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 05:24:31,131 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label20.c [2023-03-31 05:24:31,148 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c540c13d0/68309780f37e457297d0fe064d22a28e/FLAG53ff5c376 [2023-03-31 05:24:31,161 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c540c13d0/68309780f37e457297d0fe064d22a28e [2023-03-31 05:24:31,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 05:24:31,167 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 05:24:31,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 05:24:31,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 05:24:31,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 05:24:31,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 05:24:31" (1/1) ... [2023-03-31 05:24:31,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b5c2ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:24:31, skipping insertion in model container [2023-03-31 05:24:31,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 05:24:31" (1/1) ... [2023-03-31 05:24:31,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 05:24:31,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 05:24:31,476 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/eca-rers2012/Problem15_label20.c[5247,5260] [2023-03-31 05:24:31,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 05:24:31,826 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 05:24:31,853 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/eca-rers2012/Problem15_label20.c[5247,5260] [2023-03-31 05:24:32,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 05:24:32,085 INFO L208 MainTranslator]: Completed translation [2023-03-31 05:24:32,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:24:32 WrapperNode [2023-03-31 05:24:32,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 05:24:32,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 05:24:32,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 05:24:32,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 05:24:32,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:24:32" (1/1) ... [2023-03-31 05:24:32,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:24:32" (1/1) ... [2023-03-31 05:24:32,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:24:32" (1/1) ... [2023-03-31 05:24:32,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:24:32" (1/1) ... [2023-03-31 05:24:32,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:24:32" (1/1) ... [2023-03-31 05:24:32,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:24:32" (1/1) ... [2023-03-31 05:24:32,237 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:24:32" (1/1) ... [2023-03-31 05:24:32,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:24:32" (1/1) ... [2023-03-31 05:24:32,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 05:24:32,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 05:24:32,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 05:24:32,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 05:24:32,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:24:32" (1/1) ... [2023-03-31 05:24:32,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 05:24:32,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 05:24:32,301 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 05:24:32,303 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 05:24:32,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 05:24:32,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 05:24:32,336 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 05:24:32,337 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-03-31 05:24:32,337 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-03-31 05:24:32,337 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 05:24:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-03-31 05:24:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-03-31 05:24:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 05:24:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 05:24:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 05:24:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 05:24:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 05:24:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 05:24:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 05:24:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 05:24:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 05:24:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 05:24:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 05:24:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 05:24:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 05:24:32,395 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 05:24:32,397 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 05:24:34,824 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 05:24:35,485 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 05:24:35,486 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 05:24:35,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 05:24:35 BoogieIcfgContainer [2023-03-31 05:24:35,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 05:24:35,491 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 05:24:35,491 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 05:24:35,491 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 05:24:35,492 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 05:24:35" (1/1) ... [2023-03-31 05:24:35,492 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=IntervalDomain ♦ Max. Parallel Octagon=2 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=POLY_PAC ♦ Max. Parallel Equality=2 ♦ SizeLimitFluid Max. DAG Size=-1 [2023-03-31 05:24:35,521 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 05:24:35,521 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 05:24:35,530 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 05:24:35,536 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 05:24:35,537 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 05:24:35,696 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 76 for LOIs [2023-03-31 05:24:36,311 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 36 [2023-03-31 05:24:36,593 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 5164 conjuctions. This might take some time... [2023-03-31 05:24:36,719 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 96 conjuctions. [2023-03-31 05:24:36,824 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 24 [2023-03-31 05:24:36,912 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 6860 conjuctions. This might take some time... [2023-03-31 05:24:37,088 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 182 conjuctions. [2023-03-31 05:25:02,058 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 41 for LOIs [2023-03-31 05:25:02,149 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 36 [2023-03-31 05:25:02,353 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 5210 conjuctions. This might take some time... [2023-03-31 05:25:02,540 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 96 conjuctions. [2023-03-31 05:25:03,222 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 05:25:03,235 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 05:25:03,236 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 05:25:03,237 INFO L158 Benchmark]: Toolchain (without parser) took 32069.86ms. Allocated memory was 267.4MB in the beginning and 1.0GB in the end (delta: 772.8MB). Free memory was 229.2MB in the beginning and 462.8MB in the end (delta: -233.6MB). Peak memory consumption was 540.2MB. Max. memory is 8.0GB. [2023-03-31 05:25:03,237 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 05:25:03,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 918.03ms. Allocated memory is still 267.4MB. Free memory was 229.2MB in the beginning and 150.0MB in the end (delta: 79.2MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. [2023-03-31 05:25:03,238 INFO L158 Benchmark]: Boogie Preprocessor took 172.49ms. Allocated memory is still 267.4MB. Free memory was 150.0MB in the beginning and 223.1MB in the end (delta: -73.1MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. [2023-03-31 05:25:03,239 INFO L158 Benchmark]: RCFGBuilder took 3227.59ms. Allocated memory was 267.4MB in the beginning and 327.2MB in the end (delta: 59.8MB). Free memory was 223.1MB in the beginning and 198.8MB in the end (delta: 24.2MB). Peak memory consumption was 189.9MB. Max. memory is 8.0GB. [2023-03-31 05:25:03,239 INFO L158 Benchmark]: Sifa took 27745.08ms. Allocated memory was 327.2MB in the beginning and 1.0GB in the end (delta: 713.0MB). Free memory was 198.3MB in the beginning and 462.8MB in the end (delta: -264.5MB). Peak memory consumption was 448.5MB. Max. memory is 8.0GB. [2023-03-31 05:25:03,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 918.03ms. Allocated memory is still 267.4MB. Free memory was 229.2MB in the beginning and 150.0MB in the end (delta: 79.2MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 172.49ms. Allocated memory is still 267.4MB. Free memory was 150.0MB in the beginning and 223.1MB in the end (delta: -73.1MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. * RCFGBuilder took 3227.59ms. Allocated memory was 267.4MB in the beginning and 327.2MB in the end (delta: 59.8MB). Free memory was 223.1MB in the beginning and 198.8MB in the end (delta: 24.2MB). Peak memory consumption was 189.9MB. Max. memory is 8.0GB. * Sifa took 27745.08ms. Allocated memory was 327.2MB in the beginning and 1.0GB in the end (delta: 713.0MB). Free memory was 198.3MB in the beginning and 462.8MB in the end (delta: -264.5MB). Peak memory consumption was 448.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 27.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 221, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 461, TOOLS_POST_TIME: 22.3s, TOOLS_POST_CALL_APPLICATIONS: 6, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME: 2.8s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 471, TOOLS_QUANTIFIERELIM_TIME: 25.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 5.5s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 476, FLUID_YES_ANSWERS: 227, DOMAIN_JOIN_APPLICATIONS: 221, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 227, DOMAIN_ALPHA_TIME: 1.6s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 221, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 26.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 26.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 3, CALL_SUMMARIZER_OVERALL_TIME: 26.1s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 26.1s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.3s, DAG_COMPRESSION_PROCESSED_NODES: 11218, DAG_COMPRESSION_RETAINED_NODES: 482 - UnprovableResult [Line: 143]: 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 922#(or (and (= 3 ~inputC~0) (<= calculate_output_~input 6) (<= 0 (+ 98 |old(~a0~0)|)) (= (+ 98 ~a0~0) 0) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (= (+ 16 |old(~a29~0)|) 0) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= (+ ~a29~0 16) 0) (= 6 ~inputF~0) (= |#NULL.offset| 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (<= calculate_output_~input 6) (<= 0 (+ 98 |old(~a0~0)|)) (<= (+ 16 |old(~a29~0)|) 0) (= (+ 98 ~a0~0) 0) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= 6 ~inputF~0) (<= 0 (+ ~a29~0 144)) (= |#NULL.offset| 0) (<= (+ ~a29~0 16) 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (<= 0 (+ ~a0~0 147)) (= 3 ~inputC~0) (<= calculate_output_~input 6) (<= (+ 16 |old(~a29~0)|) 0) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (<= (+ 98 ~a0~0) 0) (<= (+ 98 |old(~a0~0)|) 0) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= 6 ~inputF~0) (<= 0 (+ ~a29~0 144)) (= |#NULL.offset| 0) (<= (+ ~a29~0 16) 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (<= 0 (+ 144 |old(~a29~0)|)) (= 3 ~inputC~0) (<= calculate_output_~input 6) (<= (+ 16 |old(~a29~0)|) 0) (= (+ 98 ~a0~0) 0) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= 6 ~inputF~0) (= (+ 98 |old(~a0~0)|) 0) (<= 0 (+ ~a29~0 144)) (= |#NULL.offset| 0) (<= (+ ~a29~0 16) 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (<= 0 (+ ~a0~0 147)) (= 3 ~inputC~0) (<= calculate_output_~input 6) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (<= (+ 98 ~a0~0) 0) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= 0 (+ |old(~a4~0)| 86)) (= 6 ~inputF~0) (= (+ ~a4~0 86) 0) (<= 0 (+ ~a29~0 144)) (= |#NULL.offset| 0) (<= (+ ~a29~0 16) 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (<= 0 (+ 144 |old(~a29~0)|)) (<= 0 (+ ~a0~0 147)) (= 3 ~inputC~0) (<= calculate_output_~input 6) (<= (+ 16 |old(~a29~0)|) 0) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (<= (+ 98 ~a0~0) 0) (<= (+ 98 |old(~a0~0)|) 0) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= 6 ~inputF~0) (<= 0 (+ ~a29~0 144)) (= |#NULL.offset| 0) (<= 0 (+ |old(~a0~0)| 147)) (<= (+ ~a29~0 16) 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (<= 0 (+ 144 |old(~a29~0)|)) (= 3 ~inputC~0) (<= calculate_output_~input 6) (= (+ 98 ~a0~0) 0) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= 6 ~inputF~0) (<= |old(~a29~0)| 43) (= (+ 98 |old(~a0~0)|) 0) (<= 0 (+ ~a29~0 144)) (= |#NULL.offset| 0) (<= (+ ~a29~0 16) 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (<= 0 (+ ~a0~0 147)) (= 3 ~inputC~0) (<= calculate_output_~input 6) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (<= (+ 98 ~a0~0) 0) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= 6 ~inputF~0) (<= 0 (+ ~a29~0 144)) (= |#NULL.offset| 0) (<= (+ ~a29~0 16) 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (<= calculate_output_~input 6) (= (+ 98 ~a0~0) 0) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= 6 ~inputF~0) (= (+ 98 |old(~a0~0)|) 0) (<= 0 (+ ~a29~0 144)) (= |#NULL.offset| 0) (<= (+ ~a29~0 16) 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (<= calculate_output_~input 6) (= (+ 98 ~a0~0) 0) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= (+ ~a29~0 16) 0) (= 6 ~inputF~0) (<= |old(~a29~0)| 43) (= (+ 98 |old(~a0~0)|) 0) (= |#NULL.offset| 0) (<= 0 (+ 16 |old(~a29~0)|)) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (<= 0 (+ ~a0~0 147)) (= 3 ~inputC~0) (<= calculate_output_~input 6) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (<= (+ 98 ~a0~0) 0) (<= (+ 98 |old(~a0~0)|) 0) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= 6 ~inputF~0) (<= |old(~a29~0)| 43) (<= 0 (+ ~a29~0 144)) (= |#NULL.offset| 0) (<= 0 (+ |old(~a0~0)| 147)) (<= (+ ~a29~0 16) 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (<= 0 (+ 144 |old(~a29~0)|)) (<= 0 (+ ~a0~0 147)) (= 3 ~inputC~0) (<= calculate_output_~input 6) (<= (+ 16 |old(~a29~0)|) 0) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (<= (+ 98 ~a0~0) 0) (<= (+ 98 |old(~a0~0)|) 0) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= 6 ~inputF~0) (<= 0 (+ ~a29~0 144)) (= |#NULL.offset| 0) (<= (+ ~a29~0 16) 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (<= calculate_output_~input 6) (= (+ 98 ~a0~0) 0) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= (+ ~a29~0 16) 0) (= 6 ~inputF~0) (= (+ 98 |old(~a0~0)|) 0) (= |#NULL.offset| 0) (<= 0 (+ 16 |old(~a29~0)|)) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (<= 0 (+ ~a0~0 147)) (= 3 ~inputC~0) (<= calculate_output_~input 6) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (<= (+ 98 ~a0~0) 0) (<= (+ 98 |old(~a0~0)|) 0) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= (+ ~a29~0 16) 0) (= 6 ~inputF~0) (<= |old(~a29~0)| 43) (= |#NULL.offset| 0) (<= 0 (+ 16 |old(~a29~0)|)) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (<= calculate_output_~input 6) (= (+ 98 ~a0~0) 0) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= 6 ~inputF~0) (<= |old(~a29~0)| 43) (= (+ 98 |old(~a0~0)|) 0) (<= 0 (+ ~a29~0 144)) (= |#NULL.offset| 0) (<= (+ ~a29~0 16) 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (<= 0 (+ ~a0~0 147)) (= 3 ~inputC~0) (<= calculate_output_~input 6) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (<= (+ 98 ~a0~0) 0) (= (+ 16 |old(~a29~0)|) 0) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= (+ ~a29~0 16) 0) (= 6 ~inputF~0) (= |#NULL.offset| 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (<= calculate_output_~input 6) (<= 0 (+ 98 |old(~a0~0)|)) (= (+ 98 ~a0~0) 0) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= (+ ~a29~0 16) 0) (= 6 ~inputF~0) (<= |old(~a29~0)| 43) (= |#NULL.offset| 0) (<= 0 (+ 16 |old(~a29~0)|)) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (<= 0 (+ ~a0~0 147)) (= 3 ~inputC~0) (<= calculate_output_~input 6) (<= (+ 16 |old(~a29~0)|) 0) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (<= (+ 98 ~a0~0) 0) (<= (+ 98 |old(~a0~0)|) 0) (= ~a2~0 1) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= (+ ~a4~0 86) 0) (= 6 ~inputF~0) (<= 0 (+ ~a29~0 144)) (= |#NULL.offset| 0) (<= 0 (+ |old(~a0~0)| 147)) (<= (+ ~a29~0 16) 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 05:25:03,269 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...