/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/Problem10_label27.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 04:59:16,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 04:59:16,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 04:59:16,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 04:59:16,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 04:59:16,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 04:59:16,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 04:59:16,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 04:59:16,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 04:59:16,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 04:59:16,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 04:59:16,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 04:59:16,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 04:59:16,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 04:59:16,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 04:59:16,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 04:59:16,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 04:59:16,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 04:59:16,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 04:59:16,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 04:59:16,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 04:59:16,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 04:59:16,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 04:59:16,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 04:59:16,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 04:59:16,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 04:59:16,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 04:59:16,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 04:59:16,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 04:59:16,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 04:59:16,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 04:59:16,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 04:59:16,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 04:59:16,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 04:59:16,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 04:59:16,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 04:59:16,430 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 04:59:16,460 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 04:59:16,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 04:59:16,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 04:59:16,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 04:59:16,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 04:59:16,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 04:59:16,461 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 04:59:16,462 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 04:59:16,462 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 04:59:16,462 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 04:59:16,462 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 04:59:16,463 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 04:59:16,463 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 04:59:16,463 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 04:59:16,463 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 04:59:16,463 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 04:59:16,463 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 04:59:16,463 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 04:59:16,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 04:59:16,464 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 04:59:16,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 04:59:16,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 04:59:16,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 04:59:16,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 04:59:16,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 04:59:16,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 04:59:16,465 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 04:59:16,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 04:59:16,465 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 04:59:16,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 04:59:16,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 04:59:16,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 04:59:16,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 04:59:16,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 04:59:16,466 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 04:59:16,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 04:59:16,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 04:59:16,466 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 04:59:16,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 04:59:16,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 04:59:16,466 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 04:59:16,467 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 04:59:16,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 04:59:16,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 04:59:16,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 04:59:16,698 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 04:59:16,699 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 04:59:16,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label27.c [2023-03-31 04:59:17,851 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 04:59:18,098 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 04:59:18,099 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label27.c [2023-03-31 04:59:18,117 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85df883a0/d7cdae97a6db4c3fa1825fe03dc9d12e/FLAG3fea31b0b [2023-03-31 04:59:18,131 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85df883a0/d7cdae97a6db4c3fa1825fe03dc9d12e [2023-03-31 04:59:18,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 04:59:18,134 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 04:59:18,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 04:59:18,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 04:59:18,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 04:59:18,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 04:59:18" (1/1) ... [2023-03-31 04:59:18,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ea37c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:59:18, skipping insertion in model container [2023-03-31 04:59:18,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 04:59:18" (1/1) ... [2023-03-31 04:59:18,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 04:59:18,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 04:59:18,384 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/Problem10_label27.c[6867,6880] [2023-03-31 04:59:18,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 04:59:18,566 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 04:59:18,601 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/Problem10_label27.c[6867,6880] [2023-03-31 04:59:18,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 04:59:18,678 INFO L208 MainTranslator]: Completed translation [2023-03-31 04:59:18,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:59:18 WrapperNode [2023-03-31 04:59:18,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 04:59:18,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 04:59:18,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 04:59:18,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 04:59:18,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:59:18" (1/1) ... [2023-03-31 04:59:18,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:59:18" (1/1) ... [2023-03-31 04:59:18,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:59:18" (1/1) ... [2023-03-31 04:59:18,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:59:18" (1/1) ... [2023-03-31 04:59:18,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:59:18" (1/1) ... [2023-03-31 04:59:18,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:59:18" (1/1) ... [2023-03-31 04:59:18,800 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:59:18" (1/1) ... [2023-03-31 04:59:18,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:59:18" (1/1) ... [2023-03-31 04:59:18,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 04:59:18,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 04:59:18,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 04:59:18,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 04:59:18,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:59:18" (1/1) ... [2023-03-31 04:59:18,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 04:59:18,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 04:59:18,855 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 04:59:18,876 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 04:59:18,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 04:59:18,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 04:59:18,892 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 04:59:18,892 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-03-31 04:59:18,892 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 04:59:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-03-31 04:59:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 04:59:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 04:59:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 04:59:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 04:59:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 04:59:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 04:59:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 04:59:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 04:59:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 04:59:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 04:59:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 04:59:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 04:59:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 04:59:18,976 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 04:59:18,978 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 04:59:19,871 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 04:59:22,096 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 04:59:22,096 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 04:59:22,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 04:59:22 BoogieIcfgContainer [2023-03-31 04:59:22,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 04:59:22,101 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 04:59:22,101 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 04:59:22,101 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 04:59:22,102 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 04:59:22" (1/1) ... [2023-03-31 04:59:22,103 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 04:59:22,134 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 04:59:22,135 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 04:59:22,142 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 04:59:22,145 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 04:59:22,146 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 04:59:22,297 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 68 for LOIs [2023-03-31 04:59:22,591 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 54 [2023-03-31 04:59:22,871 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 5442 conjuctions. This might take some time... [2023-03-31 04:59:22,915 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 24 conjuctions. [2023-03-31 05:00:16,657 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 49 for LOIs [2023-03-31 05:00:16,826 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 55 [2023-03-31 05:00:17,560 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 7850 conjuctions. This might take some time... [2023-03-31 05:00:17,709 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 110 conjuctions. [2023-03-31 05:00:18,132 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 05:00:18,145 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 05:00:18,145 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 05:00:18,147 INFO L158 Benchmark]: Toolchain (without parser) took 60012.41ms. Allocated memory was 183.5MB in the beginning and 924.8MB in the end (delta: 741.3MB). Free memory was 127.8MB in the beginning and 501.4MB in the end (delta: -373.6MB). Peak memory consumption was 368.7MB. Max. memory is 8.0GB. [2023-03-31 05:00:18,147 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 183.5MB. Free memory was 136.4MB in the beginning and 136.2MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 05:00:18,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 543.52ms. Allocated memory was 183.5MB in the beginning and 281.0MB in the end (delta: 97.5MB). Free memory was 127.5MB in the beginning and 250.1MB in the end (delta: -122.5MB). Peak memory consumption was 31.9MB. Max. memory is 8.0GB. [2023-03-31 05:00:18,148 INFO L158 Benchmark]: Boogie Preprocessor took 136.25ms. Allocated memory is still 281.0MB. Free memory was 250.1MB in the beginning and 245.3MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-03-31 05:00:18,149 INFO L158 Benchmark]: RCFGBuilder took 3283.00ms. Allocated memory was 281.0MB in the beginning and 404.8MB in the end (delta: 123.7MB). Free memory was 245.3MB in the beginning and 268.9MB in the end (delta: -23.5MB). Peak memory consumption was 268.5MB. Max. memory is 8.0GB. [2023-03-31 05:00:18,149 INFO L158 Benchmark]: Sifa took 56044.41ms. Allocated memory was 404.8MB in the beginning and 924.8MB in the end (delta: 520.1MB). Free memory was 268.9MB in the beginning and 501.4MB in the end (delta: -232.6MB). Peak memory consumption was 287.5MB. Max. memory is 8.0GB. [2023-03-31 05:00:18,152 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 183.5MB. Free memory was 136.4MB in the beginning and 136.2MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 543.52ms. Allocated memory was 183.5MB in the beginning and 281.0MB in the end (delta: 97.5MB). Free memory was 127.5MB in the beginning and 250.1MB in the end (delta: -122.5MB). Peak memory consumption was 31.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 136.25ms. Allocated memory is still 281.0MB. Free memory was 250.1MB in the beginning and 245.3MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 3283.00ms. Allocated memory was 281.0MB in the beginning and 404.8MB in the end (delta: 123.7MB). Free memory was 245.3MB in the beginning and 268.9MB in the end (delta: -23.5MB). Peak memory consumption was 268.5MB. Max. memory is 8.0GB. * Sifa took 56044.41ms. Allocated memory was 404.8MB in the beginning and 924.8MB in the end (delta: 520.1MB). Free memory was 268.9MB in the beginning and 501.4MB in the end (delta: -232.6MB). Peak memory consumption was 287.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 56.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 1, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 18, TOOLS_POST_TIME: 54.3s, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 3, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 26, TOOLS_QUANTIFIERELIM_TIME: 54.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 53.6s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 31, FLUID_YES_ANSWERS: 6, DOMAIN_JOIN_APPLICATIONS: 1, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 6, DOMAIN_ALPHA_TIME: 1.4s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 1, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 54.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 54.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 3, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 54.2s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 54.2s, 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: 49, DAG_COMPRESSION_RETAINED_NODES: 34 - UnprovableResult [Line: 194]: 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 36#(or (and (= 3 ~inputC~0) (= 5 calculate_output_~input) (= |calculate_output_#in~input| 5) (<= (+ ~a1~0 13) 0) (= ~inputD~0 4) (= 5 ~inputE~0) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (<= (+ |old(~a1~0)| 13) 0) (= ~a12~0 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= |calculate_output_#in~input| 2) (= 3 ~inputC~0) (= 2 calculate_output_~input) (<= (+ ~a1~0 13) 0) (= ~inputD~0 4) (= 5 ~inputE~0) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (<= (+ |old(~a1~0)| 13) 0) (= ~a12~0 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (= (+ |old(~a1~0)| 13) 0) (= 5 calculate_output_~input) (= |calculate_output_#in~input| 5) (= ~inputD~0 4) (= (+ ~a1~0 13) 0) (= 5 ~inputE~0) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (= ~a12~0 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (= (+ |old(~a1~0)| 13) 0) (= 6 calculate_output_~input) (= ~inputD~0 4) (= (+ ~a1~0 13) 0) (= 5 ~inputE~0) (= 6 ~inputF~0) (= |calculate_output_#in~input| 6) (= 14 ~a4~0) (= ~a10~0 2) (= ~a12~0 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (= (+ |old(~a1~0)| 13) 0) (= 3 calculate_output_~input) (= ~inputD~0 4) (= (+ ~a1~0 13) 0) (= 5 ~inputE~0) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (= ~a12~0 0) (= |#NULL.offset| 0) (= |calculate_output_#in~input| 3) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (<= (+ ~a1~0 13) 0) (= ~inputD~0 4) (= 5 ~inputE~0) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (<= (+ |old(~a1~0)| 13) 0) (= ~a12~0 0) (= |#NULL.offset| 0) (= |calculate_output_#in~input| 4) (<= 0 |#StackHeapBarrier|) (= calculate_output_~input 4) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (= 6 calculate_output_~input) (<= (+ ~a1~0 13) 0) (= ~inputD~0 4) (= 5 ~inputE~0) (= 6 ~inputF~0) (= |calculate_output_#in~input| 6) (= 14 ~a4~0) (= ~a10~0 2) (= ~a12~0 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (= 3 calculate_output_~input) (= ~inputD~0 4) (= (+ ~a1~0 13) 0) (= 5 ~inputE~0) (<= 0 (+ |old(~a1~0)| 13)) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (= ~a12~0 0) (= |#NULL.offset| 0) (<= |old(~a1~0)| 38) (= |calculate_output_#in~input| 3) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (<= (+ ~a1~0 13) 0) (= ~inputD~0 4) (= 5 ~inputE~0) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (= ~a12~0 0) (= |#NULL.offset| 0) (= |calculate_output_#in~input| 4) (<= 0 |#StackHeapBarrier|) (= calculate_output_~input 4) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (= ~inputD~0 4) (= (+ ~a1~0 13) 0) (= 5 ~inputE~0) (<= 0 (+ |old(~a1~0)| 13)) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (= ~a12~0 0) (= |#NULL.offset| 0) (<= |old(~a1~0)| 38) (= |calculate_output_#in~input| 4) (<= 0 |#StackHeapBarrier|) (= calculate_output_~input 4) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= |calculate_output_#in~input| 2) (= 3 ~inputC~0) (= 2 calculate_output_~input) (<= (+ ~a1~0 13) 0) (= ~inputD~0 4) (= 5 ~inputE~0) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (= ~a12~0 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (= 5 calculate_output_~input) (= |calculate_output_#in~input| 5) (<= (+ ~a1~0 13) 0) (= ~inputD~0 4) (= 5 ~inputE~0) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (= ~a12~0 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (= 6 calculate_output_~input) (<= (+ ~a1~0 13) 0) (= ~inputD~0 4) (= 5 ~inputE~0) (= 6 ~inputF~0) (= |calculate_output_#in~input| 6) (= 14 ~a4~0) (= ~a10~0 2) (<= (+ |old(~a1~0)| 13) 0) (= ~a12~0 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (= 3 calculate_output_~input) (<= (+ ~a1~0 13) 0) (= ~inputD~0 4) (= 5 ~inputE~0) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (<= (+ |old(~a1~0)| 13) 0) (= ~a12~0 0) (= |#NULL.offset| 0) (= |calculate_output_#in~input| 3) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= |calculate_output_#in~input| 2) (= 3 ~inputC~0) (= (+ |old(~a1~0)| 13) 0) (= 2 calculate_output_~input) (= ~inputD~0 4) (= (+ ~a1~0 13) 0) (= 5 ~inputE~0) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (= ~a12~0 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (= 5 calculate_output_~input) (= |calculate_output_#in~input| 5) (= ~inputD~0 4) (= (+ ~a1~0 13) 0) (= 5 ~inputE~0) (<= 0 (+ |old(~a1~0)| 13)) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (= ~a12~0 0) (= |#NULL.offset| 0) (<= |old(~a1~0)| 38) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (= (+ |old(~a1~0)| 13) 0) (= ~inputD~0 4) (= (+ ~a1~0 13) 0) (= 5 ~inputE~0) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (= ~a12~0 0) (= |#NULL.offset| 0) (= |calculate_output_#in~input| 4) (<= 0 |#StackHeapBarrier|) (= calculate_output_~input 4) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= |calculate_output_#in~input| 2) (= 3 ~inputC~0) (= 2 calculate_output_~input) (= ~inputD~0 4) (= (+ ~a1~0 13) 0) (= 5 ~inputE~0) (<= 0 (+ |old(~a1~0)| 13)) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (= ~a12~0 0) (= |#NULL.offset| 0) (<= |old(~a1~0)| 38) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (= 6 calculate_output_~input) (= ~inputD~0 4) (= (+ ~a1~0 13) 0) (= 5 ~inputE~0) (<= 0 (+ |old(~a1~0)| 13)) (= 6 ~inputF~0) (= |calculate_output_#in~input| 6) (= 14 ~a4~0) (= ~a10~0 2) (= ~a12~0 0) (= |#NULL.offset| 0) (<= |old(~a1~0)| 38) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (= 3 calculate_output_~input) (<= (+ ~a1~0 13) 0) (= ~inputD~0 4) (= 5 ~inputE~0) (= 6 ~inputF~0) (= 14 ~a4~0) (= ~a10~0 2) (= ~a12~0 0) (= |#NULL.offset| 0) (= |calculate_output_#in~input| 3) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 05:00:18,185 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...