/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/SifaC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/float-benchs/filter2_alt.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 05:56:27,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 05:56:27,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 05:56:27,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 05:56:27,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 05:56:27,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 05:56:27,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 05:56:27,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 05:56:27,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 05:56:27,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 05:56:27,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 05:56:27,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 05:56:27,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 05:56:27,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 05:56:27,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 05:56:27,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 05:56:27,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 05:56:27,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 05:56:27,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 05:56:27,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 05:56:27,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 05:56:27,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 05:56:27,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 05:56:27,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 05:56:27,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 05:56:27,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 05:56:27,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 05:56:27,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 05:56:27,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 05:56:27,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 05:56:27,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 05:56:27,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 05:56:27,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 05:56:27,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 05:56:27,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 05:56:27,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 05:56:27,678 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 05:56:27,709 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 05:56:27,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 05:56:27,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 05:56:27,710 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 05:56:27,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 05:56:27,711 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 05:56:27,711 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 05:56:27,711 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 05:56:27,711 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 05:56:27,712 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 05:56:27,712 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 05:56:27,712 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 05:56:27,713 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 05:56:27,713 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 05:56:27,713 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 05:56:27,713 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 05:56:27,713 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 05:56:27,713 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 05:56:27,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 05:56:27,714 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 05:56:27,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 05:56:27,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 05:56:27,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 05:56:27,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 05:56:27,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 05:56:27,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 05:56:27,715 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 05:56:27,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 05:56:27,716 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 05:56:27,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 05:56:27,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 05:56:27,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 05:56:27,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 05:56:27,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 05:56:27,717 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 05:56:27,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 05:56:27,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 05:56:27,717 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 05:56:27,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 05:56:27,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 05:56:27,717 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 05:56:27,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 05:56:27,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 05:56:28,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 05:56:28,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 05:56:28,018 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 05:56:28,019 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 05:56:28,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter2_alt.c [2023-03-31 05:56:29,276 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 05:56:29,449 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 05:56:29,450 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_alt.c [2023-03-31 05:56:29,455 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac1c9d2d1/60d87747dd3d40509931475c67c4b6a2/FLAGbee232fc7 [2023-03-31 05:56:29,471 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac1c9d2d1/60d87747dd3d40509931475c67c4b6a2 [2023-03-31 05:56:29,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 05:56:29,474 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 05:56:29,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 05:56:29,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 05:56:29,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 05:56:29,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 05:56:29" (1/1) ... [2023-03-31 05:56:29,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6869eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:56:29, skipping insertion in model container [2023-03-31 05:56:29,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 05:56:29" (1/1) ... [2023-03-31 05:56:29,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 05:56:29,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 05:56:29,626 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/float-benchs/filter2_alt.c[631,644] [2023-03-31 05:56:29,652 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 05:56:29,662 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 05:56:29,672 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/float-benchs/filter2_alt.c[631,644] [2023-03-31 05:56:29,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 05:56:29,694 INFO L208 MainTranslator]: Completed translation [2023-03-31 05:56:29,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:56:29 WrapperNode [2023-03-31 05:56:29,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 05:56:29,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 05:56:29,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 05:56:29,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 05:56:29,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:56:29" (1/1) ... [2023-03-31 05:56:29,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:56:29" (1/1) ... [2023-03-31 05:56:29,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:56:29" (1/1) ... [2023-03-31 05:56:29,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:56:29" (1/1) ... [2023-03-31 05:56:29,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:56:29" (1/1) ... [2023-03-31 05:56:29,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:56:29" (1/1) ... [2023-03-31 05:56:29,724 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:56:29" (1/1) ... [2023-03-31 05:56:29,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:56:29" (1/1) ... [2023-03-31 05:56:29,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 05:56:29,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 05:56:29,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 05:56:29,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 05:56:29,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:56:29" (1/1) ... [2023-03-31 05:56:29,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 05:56:29,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 05:56:29,763 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 05:56:29,768 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 05:56:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 05:56:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 05:56:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 05:56:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 05:56:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-31 05:56:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2023-03-31 05:56:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure filter2 [2023-03-31 05:56:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 05:56:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 05:56:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 05:56:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 05:56:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 05:56:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-03-31 05:56:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 05:56:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-31 05:56:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2023-03-31 05:56:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure filter2 [2023-03-31 05:56:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-03-31 05:56:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-03-31 05:56:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 05:56:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 05:56:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 05:56:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-03-31 05:56:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 05:56:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 05:56:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 05:56:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 05:56:29,894 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 05:56:29,896 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 05:56:30,074 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 05:56:30,111 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 05:56:30,111 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 05:56:30,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 05:56:30 BoogieIcfgContainer [2023-03-31 05:56:30,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 05:56:30,115 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 05:56:30,115 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 05:56:30,116 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 05:56:30,116 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 05:56:30" (1/1) ... [2023-03-31 05:56:30,117 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=IntervalDomain ♦ Max. Parallel Octagon=2 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=POLY_PAC ♦ Max. Parallel Equality=2 ♦ SizeLimitFluid Max. DAG Size=-1 [2023-03-31 05:56:30,138 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 05:56:30,138 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 05:56:30,141 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 05:56:30,146 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 05:56:30,147 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 05:56:30,461 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 83 for LOIs [2023-03-31 05:56:31,109 INFO L197 IcfgInterpreter]: Interpreting procedure filter2 with input of size 36 for LOIs [2023-03-31 05:56:31,125 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 25 for LOIs [2023-03-31 05:56:31,132 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 05:56:31,149 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 05:56:31,149 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 05:56:31,151 INFO L158 Benchmark]: Toolchain (without parser) took 1676.05ms. Allocated memory is still 305.1MB. Free memory was 250.0MB in the beginning and 191.3MB in the end (delta: 58.7MB). Peak memory consumption was 60.3MB. Max. memory is 8.0GB. [2023-03-31 05:56:31,151 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 185.6MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 05:56:31,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.29ms. Allocated memory is still 305.1MB. Free memory was 249.7MB in the beginning and 239.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 05:56:31,153 INFO L158 Benchmark]: Boogie Preprocessor took 31.89ms. Allocated memory is still 305.1MB. Free memory was 239.1MB in the beginning and 237.4MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-03-31 05:56:31,154 INFO L158 Benchmark]: RCFGBuilder took 386.89ms. Allocated memory is still 305.1MB. Free memory was 237.1MB in the beginning and 223.1MB in the end (delta: 13.9MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-03-31 05:56:31,157 INFO L158 Benchmark]: Sifa took 1034.04ms. Allocated memory is still 305.1MB. Free memory was 223.1MB in the beginning and 191.3MB in the end (delta: 31.8MB). Peak memory consumption was 33.0MB. Max. memory is 8.0GB. [2023-03-31 05:56:31,163 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 185.6MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 219.29ms. Allocated memory is still 305.1MB. Free memory was 249.7MB in the beginning and 239.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.89ms. Allocated memory is still 305.1MB. Free memory was 239.1MB in the beginning and 237.4MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 386.89ms. Allocated memory is still 305.1MB. Free memory was 237.1MB in the beginning and 223.1MB in the end (delta: 13.9MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Sifa took 1034.04ms. Allocated memory is still 305.1MB. Free memory was 223.1MB in the beginning and 191.3MB in the end (delta: 31.8MB). Peak memory consumption was 33.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 1.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 3, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 28, TOOLS_POST_TIME: 0.3s, TOOLS_POST_CALL_APPLICATIONS: 14, TOOLS_POST_CALL_TIME: 0.3s, TOOLS_POST_RETURN_APPLICATIONS: 11, TOOLS_POST_RETURN_TIME: 0.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 53, TOOLS_QUANTIFIERELIM_TIME: 0.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 55, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME: 0.0s, 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: 3, 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: 11, CALL_SUMMARIZER_CACHE_MISSES: 5, CALL_SUMMARIZER_OVERALL_TIME: 0.2s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 92, DAG_COMPRESSION_RETAINED_NODES: 55 - UnprovableResult [Line: 14]: 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 59#(and (= |~#S~0.base| 5) (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (= |~#S~0.offset| 0) (= |~#E~0.base| 4) (= ~INIT~0 0) (= |#NULL.offset| 0) (= |~#E~0.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 05:56:31,189 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...