/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/loop-acceleration/nested_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.sifa-quantifier-058fc93 [2023-03-22 14:19:01,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-22 14:19:01,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-22 14:19:01,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-22 14:19:01,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-22 14:19:01,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-22 14:19:01,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-22 14:19:01,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-22 14:19:01,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-22 14:19:01,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-22 14:19:01,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-22 14:19:01,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-22 14:19:01,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-22 14:19:01,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-22 14:19:01,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-22 14:19:01,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-22 14:19:01,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-22 14:19:01,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-22 14:19:01,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-22 14:19:01,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-22 14:19:01,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-22 14:19:01,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-22 14:19:01,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-22 14:19:01,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-22 14:19:01,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-22 14:19:01,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-22 14:19:01,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-22 14:19:01,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-22 14:19:01,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-22 14:19:01,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-22 14:19:01,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-22 14:19:01,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-22 14:19:01,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-22 14:19:01,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-22 14:19:01,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-22 14:19:01,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-22 14:19:01,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-22 14:19:01,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-22 14:19:01,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-22 14:19:01,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-22 14:19:01,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-22 14:19:01,261 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 14:19:01,287 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-22 14:19:01,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-22 14:19:01,287 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-22 14:19:01,288 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-22 14:19:01,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-22 14:19:01,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-22 14:19:01,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-22 14:19:01,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-22 14:19:01,289 INFO L138 SettingsManager]: * Use SBE=true [2023-03-22 14:19:01,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-22 14:19:01,290 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-22 14:19:01,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-22 14:19:01,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-22 14:19:01,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-22 14:19:01,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-22 14:19:01,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-22 14:19:01,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-22 14:19:01,291 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-22 14:19:01,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-22 14:19:01,291 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-22 14:19:01,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-22 14:19:01,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-22 14:19:01,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-22 14:19:01,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-22 14:19:01,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-22 14:19:01,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-22 14:19:01,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-22 14:19:01,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-22 14:19:01,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-22 14:19:01,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-22 14:19:01,292 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-22 14:19:01,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-22 14:19:01,293 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-22 14:19:01,293 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-22 14:19:01,293 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-22 14:19:01,293 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-22 14:19:01,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-22 14:19:01,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-22 14:19:01,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-22 14:19:01,506 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-22 14:19:01,506 INFO L275 PluginConnector]: CDTParser initialized [2023-03-22 14:19:01,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/nested_1-1.c [2023-03-22 14:19:02,577 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-22 14:19:02,728 INFO L351 CDTParser]: Found 1 translation units. [2023-03-22 14:19:02,728 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/nested_1-1.c [2023-03-22 14:19:02,732 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b071e2b4/bc134abae7784d4aa26757b020e4efc8/FLAGa4b83a44d [2023-03-22 14:19:02,744 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b071e2b4/bc134abae7784d4aa26757b020e4efc8 [2023-03-22 14:19:02,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-22 14:19:02,747 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-22 14:19:02,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-22 14:19:02,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-22 14:19:02,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-22 14:19:02,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.03 02:19:02" (1/1) ... [2023-03-22 14:19:02,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7867204f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:19:02, skipping insertion in model container [2023-03-22 14:19:02,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.03 02:19:02" (1/1) ... [2023-03-22 14:19:02,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-22 14:19:02,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-22 14:19:02,871 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-acceleration/nested_1-1.c[322,335] [2023-03-22 14:19:02,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-22 14:19:02,888 INFO L203 MainTranslator]: Completed pre-run [2023-03-22 14:19:02,897 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-acceleration/nested_1-1.c[322,335] [2023-03-22 14:19:02,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-22 14:19:02,908 INFO L208 MainTranslator]: Completed translation [2023-03-22 14:19:02,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:19:02 WrapperNode [2023-03-22 14:19:02,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-22 14:19:02,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-22 14:19:02,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-22 14:19:02,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-22 14:19:02,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:19:02" (1/1) ... [2023-03-22 14:19:02,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:19:02" (1/1) ... [2023-03-22 14:19:02,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:19:02" (1/1) ... [2023-03-22 14:19:02,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:19:02" (1/1) ... [2023-03-22 14:19:02,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:19:02" (1/1) ... [2023-03-22 14:19:02,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:19:02" (1/1) ... [2023-03-22 14:19:02,928 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:19:02" (1/1) ... [2023-03-22 14:19:02,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:19:02" (1/1) ... [2023-03-22 14:19:02,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-22 14:19:02,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-22 14:19:02,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-22 14:19:02,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-22 14:19:02,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 02:19:02" (1/1) ... [2023-03-22 14:19:02,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-22 14:19:02,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-22 14:19:02,954 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 14:19:02,972 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 14:19:02,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-22 14:19:02,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-22 14:19:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-22 14:19:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-22 14:19:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-22 14:19:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-22 14:19:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-22 14:19:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-22 14:19:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-22 14:19:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-22 14:19:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-22 14:19:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-22 14:19:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-22 14:19:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-22 14:19:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-22 14:19:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-22 14:19:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-22 14:19:03,033 INFO L236 CfgBuilder]: Building ICFG [2023-03-22 14:19:03,034 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-22 14:19:03,171 INFO L277 CfgBuilder]: Performing block encoding [2023-03-22 14:19:03,175 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-22 14:19:03,176 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-03-22 14:19:03,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.03 02:19:03 BoogieIcfgContainer [2023-03-22 14:19:03,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-22 14:19:03,193 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-22 14:19:03,193 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-22 14:19:03,193 INFO L275 PluginConnector]: Sifa initialized [2023-03-22 14:19:03,194 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.03 02:19:03" (1/1) ... [2023-03-22 14:19:03,194 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 14:19:03,231 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-22 14:19:03,231 INFO L166 IcfgInterpreter]: Building call graph [2023-03-22 14:19:03,234 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-22 14:19:03,238 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-22 14:19:03,239 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-22 14:19:03,355 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 36 for LOIs [2023-03-22 14:19:03,505 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 18 for LOIs [2023-03-22 14:19:03,516 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-22 14:19:03,539 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-22 14:19:03,539 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-22 14:19:03,540 INFO L158 Benchmark]: Toolchain (without parser) took 793.05ms. Allocated memory is still 300.9MB. Free memory was 249.4MB in the beginning and 264.9MB in the end (delta: -15.6MB). Peak memory consumption was 74.1MB. Max. memory is 8.0GB. [2023-03-22 14:19:03,540 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory was 134.6MB in the beginning and 134.5MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-22 14:19:03,541 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.83ms. Allocated memory is still 300.9MB. Free memory was 249.4MB in the beginning and 239.4MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-03-22 14:19:03,541 INFO L158 Benchmark]: Boogie Preprocessor took 23.37ms. Allocated memory is still 300.9MB. Free memory was 239.4MB in the beginning and 237.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-22 14:19:03,542 INFO L158 Benchmark]: RCFGBuilder took 243.83ms. Allocated memory is still 300.9MB. Free memory was 237.8MB in the beginning and 227.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-22 14:19:03,542 INFO L158 Benchmark]: Sifa took 346.76ms. Allocated memory is still 300.9MB. Free memory was 227.3MB in the beginning and 264.9MB in the end (delta: -37.6MB). Peak memory consumption was 52.1MB. Max. memory is 8.0GB. [2023-03-22 14:19:03,547 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 188.7MB. Free memory was 134.6MB in the beginning and 134.5MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 159.83ms. Allocated memory is still 300.9MB. Free memory was 249.4MB in the beginning and 239.4MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.37ms. Allocated memory is still 300.9MB. Free memory was 239.4MB in the beginning and 237.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 243.83ms. Allocated memory is still 300.9MB. Free memory was 237.8MB in the beginning and 227.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Sifa took 346.76ms. Allocated memory is still 300.9MB. Free memory was 227.3MB in the beginning and 264.9MB in the end (delta: -37.6MB). Peak memory consumption was 52.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 0.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 6, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 27, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 3, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 29, TOOLS_QUANTIFIERELIM_TIME: 0.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 42, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 10, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, 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: 0.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, 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: 75, DAG_COMPRESSION_RETAINED_NODES: 40 - UnprovableResult [Line: 7]: 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 45#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (exists ((v_main_~x~0_BEFORE_CALL_1 Int)) (and (<= 0 v_main_~x~0_BEFORE_CALL_1) (= (mod v_main_~x~0_BEFORE_CALL_1 2) 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 14:19:03,562 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...