/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 IntervalDomain -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/loops/string-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.sifa-quantifier-058fc93 [2023-03-22 14:18:44,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-22 14:18:44,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-22 14:18:44,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-22 14:18:44,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-22 14:18:44,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-22 14:18:44,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-22 14:18:44,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-22 14:18:44,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-22 14:18:44,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-22 14:18:44,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-22 14:18:44,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-22 14:18:44,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-22 14:18:44,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-22 14:18:44,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-22 14:18:44,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-22 14:18:44,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-22 14:18:44,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-22 14:18:44,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-22 14:18:44,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-22 14:18:44,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-22 14:18:44,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-22 14:18:44,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-22 14:18:44,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-22 14:18:44,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-22 14:18:44,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-22 14:18:44,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-22 14:18:44,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-22 14:18:44,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-22 14:18:44,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-22 14:18:44,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-22 14:18:44,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-22 14:18:44,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-22 14:18:44,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-22 14:18:44,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-22 14:18:44,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-22 14:18:44,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-22 14:18:44,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-22 14:18:44,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-22 14:18:44,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-22 14:18:44,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-22 14:18:44,223 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 14:18:44,237 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-22 14:18:44,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-22 14:18:44,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-22 14:18:44,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-22 14:18:44,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-22 14:18:44,238 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-22 14:18:44,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-22 14:18:44,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-22 14:18:44,239 INFO L138 SettingsManager]: * Use SBE=true [2023-03-22 14:18:44,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-22 14:18:44,239 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-22 14:18:44,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-22 14:18:44,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-22 14:18:44,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-22 14:18:44,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-22 14:18:44,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-22 14:18:44,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-22 14:18:44,240 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-22 14:18:44,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-22 14:18:44,240 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-22 14:18:44,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-22 14:18:44,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-22 14:18:44,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-22 14:18:44,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-22 14:18:44,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-22 14:18:44,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-22 14:18:44,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-22 14:18:44,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-22 14:18:44,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-22 14:18:44,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-22 14:18:44,241 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-22 14:18:44,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-22 14:18:44,241 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-22 14:18:44,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-22 14:18:44,241 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-22 14:18:44,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-22 14:18:44,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-22 14:18:44,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-22 14:18:44,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-22 14:18:44,444 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-22 14:18:44,444 INFO L275 PluginConnector]: CDTParser initialized [2023-03-22 14:18:44,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/string-2.i [2023-03-22 14:18:45,607 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-22 14:18:45,768 INFO L351 CDTParser]: Found 1 translation units. [2023-03-22 14:18:45,769 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/string-2.i [2023-03-22 14:18:45,773 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dc6295c7/e0e5c7cd721c4f689e2f391c5b0048b9/FLAG50bb0d0c2 [2023-03-22 14:18:45,783 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dc6295c7/e0e5c7cd721c4f689e2f391c5b0048b9 [2023-03-22 14:18:45,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-22 14:18:45,786 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-22 14:18:45,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-22 14:18:45,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-22 14:18:45,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-22 14:18:45,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.03 02:18:45" (1/1) ... [2023-03-22 14:18:45,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17e6341d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:18:45, skipping insertion in model container [2023-03-22 14:18:45,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.03 02:18:45" (1/1) ... [2023-03-22 14:18:45,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-22 14:18:45,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-22 14:18:45,891 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/loops/string-2.i[896,909] [2023-03-22 14:18:45,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-22 14:18:45,907 INFO L203 MainTranslator]: Completed pre-run [2023-03-22 14:18:45,914 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/loops/string-2.i[896,909] [2023-03-22 14:18:45,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-22 14:18:45,928 INFO L208 MainTranslator]: Completed translation [2023-03-22 14:18:45,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:18:45 WrapperNode [2023-03-22 14:18:45,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-22 14:18:45,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-22 14:18:45,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-22 14:18:45,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-22 14:18:45,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:18:45" (1/1) ... [2023-03-22 14:18:45,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:18:45" (1/1) ... [2023-03-22 14:18:45,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:18:45" (1/1) ... [2023-03-22 14:18:45,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:18:45" (1/1) ... [2023-03-22 14:18:45,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:18:45" (1/1) ... [2023-03-22 14:18:45,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:18:45" (1/1) ... [2023-03-22 14:18:45,952 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:18:45" (1/1) ... [2023-03-22 14:18:45,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:18:45" (1/1) ... [2023-03-22 14:18:45,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-22 14:18:45,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-22 14:18:45,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-22 14:18:45,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-22 14:18:45,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:18:45" (1/1) ... [2023-03-22 14:18:45,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-22 14:18:45,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-22 14:18:45,982 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 14:18:45,987 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 14:18:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-22 14:18:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-22 14:18:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-22 14:18:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-22 14:18:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-22 14:18:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-22 14:18:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-22 14:18:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-22 14:18:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-03-22 14:18:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-03-22 14:18:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-22 14:18:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-22 14:18:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-22 14:18:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-22 14:18:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-22 14:18:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-22 14:18:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-22 14:18:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-22 14:18:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-22 14:18:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-22 14:18:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-22 14:18:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-22 14:18:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-22 14:18:46,060 INFO L236 CfgBuilder]: Building ICFG [2023-03-22 14:18:46,061 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-22 14:18:46,300 INFO L277 CfgBuilder]: Performing block encoding [2023-03-22 14:18:46,304 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-22 14:18:46,304 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-22 14:18:46,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.03 02:18:46 BoogieIcfgContainer [2023-03-22 14:18:46,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-22 14:18:46,306 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-22 14:18:46,306 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-22 14:18:46,306 INFO L275 PluginConnector]: Sifa initialized [2023-03-22 14:18:46,307 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.03 02:18:46" (1/1) ... [2023-03-22 14:18:46,307 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=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 14:18:46,330 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-22 14:18:46,330 INFO L166 IcfgInterpreter]: Building call graph [2023-03-22 14:18:46,339 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-22 14:18:46,343 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-22 14:18:46,344 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-22 14:18:46,475 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 36 for LOIs [2023-03-22 14:18:46,993 WARN L115 ntervalStateProvider]: Interval conversion did not stabilize in 14 iterations. Over-approximation may be very coarse. [2023-03-22 14:18:46,994 WARN L115 ntervalStateProvider]: Interval conversion did not stabilize in 13 iterations. Over-approximation may be very coarse. [2023-03-22 14:18:46,995 WARN L115 ntervalStateProvider]: Interval conversion did not stabilize in 13 iterations. Over-approximation may be very coarse. [2023-03-22 14:18:47,009 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 26 for LOIs [2023-03-22 14:18:47,023 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-22 14:18:47,033 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-22 14:18:47,034 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-22 14:18:47,034 INFO L158 Benchmark]: Toolchain (without parser) took 1248.13ms. Allocated memory is still 246.4MB. Free memory was 211.8MB in the beginning and 191.7MB in the end (delta: 20.1MB). Peak memory consumption was 20.5MB. Max. memory is 8.0GB. [2023-03-22 14:18:47,034 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 172.0MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-22 14:18:47,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 142.22ms. Allocated memory is still 246.4MB. Free memory was 211.4MB in the beginning and 200.6MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-22 14:18:47,036 INFO L158 Benchmark]: Boogie Preprocessor took 24.21ms. Allocated memory is still 246.4MB. Free memory was 200.6MB in the beginning and 198.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-22 14:18:47,037 INFO L158 Benchmark]: RCFGBuilder took 351.17ms. Allocated memory is still 246.4MB. Free memory was 198.8MB in the beginning and 184.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-03-22 14:18:47,040 INFO L158 Benchmark]: Sifa took 727.66ms. Allocated memory is still 246.4MB. Free memory was 184.5MB in the beginning and 191.7MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-22 14:18:47,042 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 172.0MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 142.22ms. Allocated memory is still 246.4MB. Free memory was 211.4MB in the beginning and 200.6MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.21ms. Allocated memory is still 246.4MB. Free memory was 200.6MB in the beginning and 198.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 351.17ms. Allocated memory is still 246.4MB. Free memory was 198.8MB in the beginning and 184.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Sifa took 727.66ms. Allocated memory is still 246.4MB. Free memory was 184.5MB in the beginning and 191.7MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 0.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 17, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 61, TOOLS_POST_TIME: 0.4s, 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: 65, TOOLS_QUANTIFIERELIM_TIME: 0.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 96, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 18, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 11, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 17, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 5, LOOP_SUMMARIZER_CACHE_MISSES: 5, LOOP_SUMMARIZER_OVERALL_TIME: 0.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 11, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 0, 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: 357, DAG_COMPRESSION_RETAINED_NODES: 82 - UnprovableResult [Line: 20]: 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 91#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-22 14:18:47,061 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...