/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml --sifa.abstract.domain OctagonDomain -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/loop-invariants/eq1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.sifa-quantifier-058fc93 [2023-03-22 19:52:31,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-22 19:52:31,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-22 19:52:31,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-22 19:52:31,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-22 19:52:31,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-22 19:52:31,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-22 19:52:31,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-22 19:52:31,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-22 19:52:31,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-22 19:52:31,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-22 19:52:31,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-22 19:52:31,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-22 19:52:31,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-22 19:52:31,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-22 19:52:31,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-22 19:52:31,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-22 19:52:31,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-22 19:52:31,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-22 19:52:31,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-22 19:52:31,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-22 19:52:31,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-22 19:52:31,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-22 19:52:31,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-22 19:52:31,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-22 19:52:31,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-22 19:52:31,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-22 19:52:31,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-22 19:52:31,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-22 19:52:31,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-22 19:52:31,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-22 19:52:31,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-22 19:52:31,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-22 19:52:31,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-22 19:52:31,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-22 19:52:31,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-22 19:52:31,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-22 19:52:31,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-22 19:52:31,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-22 19:52:31,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-22 19:52:31,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-22 19:52:31,318 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-22 19:52:31,332 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-22 19:52:31,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-22 19:52:31,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-22 19:52:31,333 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-22 19:52:31,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-22 19:52:31,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-22 19:52:31,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-22 19:52:31,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-22 19:52:31,334 INFO L138 SettingsManager]: * Use SBE=true [2023-03-22 19:52:31,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-22 19:52:31,334 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-22 19:52:31,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-22 19:52:31,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-22 19:52:31,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-22 19:52:31,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-22 19:52:31,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-22 19:52:31,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-22 19:52:31,335 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-22 19:52:31,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-22 19:52:31,335 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-22 19:52:31,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-22 19:52:31,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-22 19:52:31,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-22 19:52:31,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-22 19:52:31,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-22 19:52:31,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-22 19:52:31,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-22 19:52:31,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-22 19:52:31,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-22 19:52:31,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-22 19:52:31,336 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-22 19:52:31,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-22 19:52:31,336 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-22 19:52:31,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-22 19:52:31,336 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-22 19:52:31,337 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-03-22 19:52:31,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-22 19:52:31,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-22 19:52:31,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-22 19:52:31,574 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-22 19:52:31,574 INFO L275 PluginConnector]: CDTParser initialized [2023-03-22 19:52:31,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invariants/eq1.c [2023-03-22 19:52:32,554 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-22 19:52:32,700 INFO L351 CDTParser]: Found 1 translation units. [2023-03-22 19:52:32,701 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/eq1.c [2023-03-22 19:52:32,705 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc23c6c61/d30c68aa4aac405f96ba200457111257/FLAG2679a936a [2023-03-22 19:52:32,714 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc23c6c61/d30c68aa4aac405f96ba200457111257 [2023-03-22 19:52:32,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-22 19:52:32,717 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-22 19:52:32,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-22 19:52:32,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-22 19:52:32,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-22 19:52:32,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.03 07:52:32" (1/1) ... [2023-03-22 19:52:32,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65654363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:52:32, skipping insertion in model container [2023-03-22 19:52:32,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.03 07:52:32" (1/1) ... [2023-03-22 19:52:32,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-22 19:52:32,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-22 19:52:32,854 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/eq1.c[364,377] [2023-03-22 19:52:32,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-22 19:52:32,875 INFO L203 MainTranslator]: Completed pre-run [2023-03-22 19:52:32,884 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/eq1.c[364,377] [2023-03-22 19:52:32,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-22 19:52:32,901 INFO L208 MainTranslator]: Completed translation [2023-03-22 19:52:32,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:52:32 WrapperNode [2023-03-22 19:52:32,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-22 19:52:32,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-22 19:52:32,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-22 19:52:32,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-22 19:52:32,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:52:32" (1/1) ... [2023-03-22 19:52:32,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:52:32" (1/1) ... [2023-03-22 19:52:32,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:52:32" (1/1) ... [2023-03-22 19:52:32,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:52:32" (1/1) ... [2023-03-22 19:52:32,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:52:32" (1/1) ... [2023-03-22 19:52:32,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:52:32" (1/1) ... [2023-03-22 19:52:32,932 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:52:32" (1/1) ... [2023-03-22 19:52:32,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:52:32" (1/1) ... [2023-03-22 19:52:32,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-22 19:52:32,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-22 19:52:32,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-22 19:52:32,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-22 19:52:32,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 07:52:32" (1/1) ... [2023-03-22 19:52:32,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-22 19:52:32,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-22 19:52:32,966 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) [2023-03-22 19:52:32,981 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 [2023-03-22 19:52:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-22 19:52:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-22 19:52:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-22 19:52:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-22 19:52:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-22 19:52:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-22 19:52:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-22 19:52:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-22 19:52:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-22 19:52:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-03-22 19:52:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-22 19:52:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-22 19:52:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-22 19:52:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-22 19:52:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-22 19:52:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-22 19:52:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-22 19:52:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-22 19:52:33,063 INFO L236 CfgBuilder]: Building ICFG [2023-03-22 19:52:33,065 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-22 19:52:33,200 INFO L277 CfgBuilder]: Performing block encoding [2023-03-22 19:52:33,204 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-22 19:52:33,204 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-22 19:52:33,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.03 07:52:33 BoogieIcfgContainer [2023-03-22 19:52:33,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-22 19:52:33,207 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-22 19:52:33,207 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-22 19:52:33,207 INFO L275 PluginConnector]: Sifa initialized [2023-03-22 19:52:33,208 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.03 07:52:33" (1/1) ... [2023-03-22 19:52:33,208 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=OctagonDomain ♦ Max. Parallel Octagon=2 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=NONE ♦ Max. Parallel Equality=2 ♦ SizeLimitFluid Max. DAG Size=-1 [2023-03-22 19:52:33,236 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-22 19:52:33,236 INFO L166 IcfgInterpreter]: Building call graph [2023-03-22 19:52:33,240 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-22 19:52:33,244 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-22 19:52:33,245 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-22 19:52:33,407 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 56 for LOIs [2023-03-22 19:52:33,724 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 50 for LOIs [2023-03-22 19:52:33,782 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-22 19:52:33,791 INFO L100 SifaObserver]: ✔ All error locations are guaranteed to be unreachable. [2023-03-22 19:52:33,791 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-22 19:52:33,793 INFO L158 Benchmark]: Toolchain (without parser) took 1074.77ms. Allocated memory is still 306.2MB. Free memory was 258.5MB in the beginning and 209.0MB in the end (delta: 49.4MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. [2023-03-22 19:52:33,793 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 211.8MB. Free memory is still 160.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-22 19:52:33,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.12ms. Allocated memory is still 306.2MB. Free memory was 258.5MB in the beginning and 248.3MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-22 19:52:33,795 INFO L158 Benchmark]: Boogie Preprocessor took 33.02ms. Allocated memory is still 306.2MB. Free memory was 248.3MB in the beginning and 246.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-03-22 19:52:33,795 INFO L158 Benchmark]: RCFGBuilder took 269.40ms. Allocated memory is still 306.2MB. Free memory was 246.9MB in the beginning and 236.2MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-22 19:52:33,798 INFO L158 Benchmark]: Sifa took 584.61ms. Allocated memory is still 306.2MB. Free memory was 236.2MB in the beginning and 209.0MB in the end (delta: 27.2MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-03-22 19:52:33,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 211.8MB. Free memory is still 160.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 184.12ms. Allocated memory is still 306.2MB. Free memory was 258.5MB in the beginning and 248.3MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.02ms. Allocated memory is still 306.2MB. Free memory was 248.3MB in the beginning and 246.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 269.40ms. Allocated memory is still 306.2MB. Free memory was 246.9MB in the beginning and 236.2MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Sifa took 584.61ms. Allocated memory is still 306.2MB. Free memory was 236.2MB in the beginning and 209.0MB in the end (delta: 27.2MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 0.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 6, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 21, TOOLS_POST_TIME: 0.3s, TOOLS_POST_CALL_APPLICATIONS: 3, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 25, TOOLS_QUANTIFIERELIM_TIME: 0.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 33, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 7, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 6, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.1s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 70, DAG_COMPRESSION_RETAINED_NODES: 41 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold RESULT: Ultimate proved your program to be correct! [2023-03-22 19:52:33,819 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...