/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/SifaC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/loop-simple/nested_6.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 16:53:17,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 16:53:17,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 16:53:17,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 16:53:17,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 16:53:17,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 16:53:17,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 16:53:17,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 16:53:17,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 16:53:17,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 16:53:17,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 16:53:17,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 16:53:17,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 16:53:17,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 16:53:17,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 16:53:17,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 16:53:17,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 16:53:17,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 16:53:17,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 16:53:17,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 16:53:17,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 16:53:17,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 16:53:17,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 16:53:17,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 16:53:17,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 16:53:17,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 16:53:17,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 16:53:17,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 16:53:17,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 16:53:17,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 16:53:17,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 16:53:17,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 16:53:17,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 16:53:17,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 16:53:17,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 16:53:17,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 16:53:17,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 16:53:17,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 16:53:17,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 16:53:17,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 16:53:17,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 16:53:17,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 16:53:17,229 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 16:53:17,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 16:53:17,230 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 16:53:17,230 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 16:53:17,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 16:53:17,231 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 16:53:17,231 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 16:53:17,231 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 16:53:17,231 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 16:53:17,232 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 16:53:17,232 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 16:53:17,232 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 16:53:17,232 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 16:53:17,233 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 16:53:17,233 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 16:53:17,233 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 16:53:17,233 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 16:53:17,233 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 16:53:17,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 16:53:17,234 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 16:53:17,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 16:53:17,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 16:53:17,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 16:53:17,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 16:53:17,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 16:53:17,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 16:53:17,234 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 16:53:17,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 16:53:17,235 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 16:53:17,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 16:53:17,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 16:53:17,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 16:53:17,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 16:53:17,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 16:53:17,235 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 16:53:17,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 16:53:17,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 16:53:17,236 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 16:53:17,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 16:53:17,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 16:53:17,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 16:53:17,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-03-31 16:53:17,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 16:53:17,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 16:53:17,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 16:53:17,503 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 16:53:17,503 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 16:53:17,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-simple/nested_6.c [2023-03-31 16:53:18,637 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 16:53:18,778 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 16:53:18,778 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-simple/nested_6.c [2023-03-31 16:53:18,783 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43beab49f/ca260acd7960474f87762824fe5d0da1/FLAG2840f23f0 [2023-03-31 16:53:18,796 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43beab49f/ca260acd7960474f87762824fe5d0da1 [2023-03-31 16:53:18,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 16:53:18,799 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 16:53:18,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 16:53:18,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 16:53:18,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 16:53:18,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 04:53:18" (1/1) ... [2023-03-31 16:53:18,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ff38bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:53:18, skipping insertion in model container [2023-03-31 16:53:18,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 04:53:18" (1/1) ... [2023-03-31 16:53:18,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 16:53:18,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 16:53:18,952 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-simple/nested_6.c[959,972] [2023-03-31 16:53:18,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 16:53:18,967 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 16:53:18,986 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-simple/nested_6.c[959,972] [2023-03-31 16:53:18,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 16:53:19,002 INFO L208 MainTranslator]: Completed translation [2023-03-31 16:53:19,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:53:19 WrapperNode [2023-03-31 16:53:19,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 16:53:19,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 16:53:19,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 16:53:19,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 16:53:19,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:53:19" (1/1) ... [2023-03-31 16:53:19,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:53:19" (1/1) ... [2023-03-31 16:53:19,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:53:19" (1/1) ... [2023-03-31 16:53:19,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:53:19" (1/1) ... [2023-03-31 16:53:19,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:53:19" (1/1) ... [2023-03-31 16:53:19,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:53:19" (1/1) ... [2023-03-31 16:53:19,042 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:53:19" (1/1) ... [2023-03-31 16:53:19,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:53:19" (1/1) ... [2023-03-31 16:53:19,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 16:53:19,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 16:53:19,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 16:53:19,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 16:53:19,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:53:19" (1/1) ... [2023-03-31 16:53:19,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 16:53:19,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 16:53:19,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 16:53:19,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 16:53:19,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 16:53:19,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 16:53:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 16:53:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 16:53:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 16:53:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 16:53:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 16:53:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 16:53:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 16:53:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 16:53:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 16:53:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 16:53:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 16:53:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 16:53:19,201 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 16:53:19,203 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 16:53:19,406 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 16:53:19,450 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 16:53:19,450 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-03-31 16:53:19,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 04:53:19 BoogieIcfgContainer [2023-03-31 16:53:19,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 16:53:19,453 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 16:53:19,453 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 16:53:19,454 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 16:53:19,454 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 04:53:19" (1/1) ... [2023-03-31 16:53:19,455 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=EqDomain ♦ Max. Parallel Octagon=2 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=POLY_PAC ♦ Max. Parallel Equality=2 ♦ SizeLimitFluid Max. DAG Size=-1 [2023-03-31 16:53:19,499 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 16:53:19,499 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 16:53:19,503 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 16:53:19,507 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 16:53:19,508 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 16:53:19,647 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 36 for LOIs [2023-03-31 16:53:21,347 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 16:53:21,360 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 16:53:21,360 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 16:53:21,361 INFO L158 Benchmark]: Toolchain (without parser) took 2561.55ms. Allocated memory was 295.7MB in the beginning and 355.5MB in the end (delta: 59.8MB). Free memory was 253.2MB in the beginning and 155.1MB in the end (delta: 98.1MB). Peak memory consumption was 158.9MB. Max. memory is 8.0GB. [2023-03-31 16:53:21,361 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 179.3MB. Free memory is still 128.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 16:53:21,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.24ms. Allocated memory is still 295.7MB. Free memory was 252.8MB in the beginning and 242.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 16:53:21,363 INFO L158 Benchmark]: Boogie Preprocessor took 41.78ms. Allocated memory is still 295.7MB. Free memory was 242.7MB in the beginning and 241.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-03-31 16:53:21,366 INFO L158 Benchmark]: RCFGBuilder took 406.04ms. Allocated memory is still 295.7MB. Free memory was 241.3MB in the beginning and 228.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-03-31 16:53:21,367 INFO L158 Benchmark]: Sifa took 1906.69ms. Allocated memory was 295.7MB in the beginning and 355.5MB in the end (delta: 59.8MB). Free memory was 228.7MB in the beginning and 155.1MB in the end (delta: 73.6MB). Peak memory consumption was 134.8MB. Max. memory is 8.0GB. [2023-03-31 16:53:21,372 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 179.3MB. Free memory is still 128.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 203.24ms. Allocated memory is still 295.7MB. Free memory was 252.8MB in the beginning and 242.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.78ms. Allocated memory is still 295.7MB. Free memory was 242.7MB in the beginning and 241.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 406.04ms. Allocated memory is still 295.7MB. Free memory was 241.3MB in the beginning and 228.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Sifa took 1906.69ms. Allocated memory was 295.7MB in the beginning and 355.5MB in the end (delta: 59.8MB). Free memory was 228.7MB in the beginning and 155.1MB in the end (delta: 73.6MB). Peak memory consumption was 134.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 1.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 31, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 164, TOOLS_POST_TIME: 0.8s, TOOLS_POST_CALL_APPLICATIONS: 2, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 145, TOOLS_QUANTIFIERELIM_TIME: 0.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 324, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 28, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 23, DOMAIN_WIDEN_TIME: 0.5s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 55, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 31, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 32, LOOP_SUMMARIZER_CACHE_MISSES: 32, LOOP_SUMMARIZER_OVERALL_TIME: 1.6s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.6s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 55, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 140, DAG_COMPRESSION_RETAINED_NODES: 60 - UnprovableResult [Line: 37]: 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 220#(and (<= 6 main_~a~0) (not (= 7 main_~d~0)) (not (= 7 main_~c~0)) (or (not (= main_~f~0 6)) (not (= main_~c~0 6)) (not (= main_~d~0 6)) (not (= main_~e~0 6)) (not (= main_~b~0 6)) (not (= main_~a~0 6)))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 16:53:21,402 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...