/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/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 22:44:06,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 22:44:06,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 22:44:06,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 22:44:06,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 22:44:06,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 22:44:06,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 22:44:06,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 22:44:06,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 22:44:06,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 22:44:06,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 22:44:06,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 22:44:06,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 22:44:06,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 22:44:06,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 22:44:06,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 22:44:06,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 22:44:06,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 22:44:06,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 22:44:06,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 22:44:06,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 22:44:06,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 22:44:06,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 22:44:06,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 22:44:06,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 22:44:06,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 22:44:06,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 22:44:06,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 22:44:06,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 22:44:06,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 22:44:06,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 22:44:06,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 22:44:06,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 22:44:06,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 22:44:06,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 22:44:06,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 22:44:06,504 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 22:44:06,527 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 22:44:06,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 22:44:06,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 22:44:06,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 22:44:06,528 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 22:44:06,528 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 22:44:06,528 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 22:44:06,528 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 22:44:06,528 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 22:44:06,528 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 22:44:06,529 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 22:44:06,529 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 22:44:06,529 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 22:44:06,529 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 22:44:06,529 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 22:44:06,529 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 22:44:06,529 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 22:44:06,529 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 22:44:06,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 22:44:06,530 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 22:44:06,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 22:44:06,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 22:44:06,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 22:44:06,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 22:44:06,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 22:44:06,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 22:44:06,530 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 22:44:06,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 22:44:06,531 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 22:44:06,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 22:44:06,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 22:44:06,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 22:44:06,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:44:06,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 22:44:06,531 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 22:44:06,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 22:44:06,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 22:44:06,531 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 22:44:06,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 22:44:06,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 22:44:06,532 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 22:44:06,532 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 22:44:06,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 22:44:06,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 22:44:06,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 22:44:06,745 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 22:44:06,746 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 22:44:06,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c [2023-03-31 22:44:07,677 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 22:44:07,890 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 22:44:07,890 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c [2023-03-31 22:44:07,895 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83cc7c594/3b50d7b1fe9a4024ba59a5b33c7a2e35/FLAG6912422c1 [2023-03-31 22:44:08,267 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83cc7c594/3b50d7b1fe9a4024ba59a5b33c7a2e35 [2023-03-31 22:44:08,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 22:44:08,270 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 22:44:08,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 22:44:08,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 22:44:08,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 22:44:08,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:44:08" (1/1) ... [2023-03-31 22:44:08,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e648e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:44:08, skipping insertion in model container [2023-03-31 22:44:08,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:44:08" (1/1) ... [2023-03-31 22:44:08,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 22:44:08,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 22:44:08,427 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/rlim_invariant.c.v+nlh-reducer.c[1545,1558] [2023-03-31 22:44:08,433 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/rlim_invariant.c.v+nlh-reducer.c[2749,2762] [2023-03-31 22:44:08,436 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:44:08,443 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 22:44:08,453 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/rlim_invariant.c.v+nlh-reducer.c[1545,1558] [2023-03-31 22:44:08,455 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/rlim_invariant.c.v+nlh-reducer.c[2749,2762] [2023-03-31 22:44:08,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:44:08,466 INFO L208 MainTranslator]: Completed translation [2023-03-31 22:44:08,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:44:08 WrapperNode [2023-03-31 22:44:08,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 22:44:08,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 22:44:08,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 22:44:08,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 22:44:08,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:44:08" (1/1) ... [2023-03-31 22:44:08,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:44:08" (1/1) ... [2023-03-31 22:44:08,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:44:08" (1/1) ... [2023-03-31 22:44:08,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:44:08" (1/1) ... [2023-03-31 22:44:08,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:44:08" (1/1) ... [2023-03-31 22:44:08,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:44:08" (1/1) ... [2023-03-31 22:44:08,491 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:44:08" (1/1) ... [2023-03-31 22:44:08,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:44:08" (1/1) ... [2023-03-31 22:44:08,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 22:44:08,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 22:44:08,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 22:44:08,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 22:44:08,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:44:08" (1/1) ... [2023-03-31 22:44:08,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:44:08,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:44:08,527 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 22:44:08,532 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 22:44:08,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 22:44:08,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 22:44:08,553 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 22:44:08,553 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 22:44:08,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 22:44:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 22:44:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 22:44:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 22:44:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 22:44:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-03-31 22:44:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 22:44:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-31 22:44:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 22:44:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 22:44:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 22:44:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 22:44:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 22:44:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 22:44:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 22:44:08,651 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 22:44:08,668 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 22:44:08,810 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 22:44:08,851 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 22:44:08,852 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-31 22:44:08,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:44:08 BoogieIcfgContainer [2023-03-31 22:44:08,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 22:44:08,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 22:44:08,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 22:44:08,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 22:44:08,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 10:44:08" (1/3) ... [2023-03-31 22:44:08,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d00be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:44:08, skipping insertion in model container [2023-03-31 22:44:08,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:44:08" (2/3) ... [2023-03-31 22:44:08,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d00be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:44:08, skipping insertion in model container [2023-03-31 22:44:08,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:44:08" (3/3) ... [2023-03-31 22:44:08,859 INFO L112 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c.v+nlh-reducer.c [2023-03-31 22:44:08,870 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 22:44:08,870 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-03-31 22:44:08,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 22:44:08,909 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@509ade71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 22:44:08,909 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-03-31 22:44:08,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 37 states have internal predecessors, (57), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-31 22:44:08,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-03-31 22:44:08,916 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:44:08,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:44:08,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:44:08,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:44:08,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1285491469, now seen corresponding path program 1 times [2023-03-31 22:44:08,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:44:08,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290251717] [2023-03-31 22:44:08,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:44:08,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:44:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 22:44:08,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-31 22:44:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 22:44:09,028 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-03-31 22:44:09,030 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-31 22:44:09,030 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-03-31 22:44:09,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-03-31 22:44:09,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 22:44:09,035 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-03-31 22:44:09,037 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 22:44:09,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 10:44:09 BoogieIcfgContainer [2023-03-31 22:44:09,085 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 22:44:09,086 INFO L158 Benchmark]: Toolchain (without parser) took 815.45ms. Allocated memory is still 199.2MB. Free memory was 163.9MB in the beginning and 116.2MB in the end (delta: 47.7MB). Peak memory consumption was 47.2MB. Max. memory is 8.0GB. [2023-03-31 22:44:09,086 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 165.7MB. Free memory is still 113.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 22:44:09,087 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.46ms. Allocated memory is still 199.2MB. Free memory was 163.9MB in the beginning and 151.9MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-03-31 22:44:09,087 INFO L158 Benchmark]: Boogie Preprocessor took 25.17ms. Allocated memory is still 199.2MB. Free memory was 151.9MB in the beginning and 150.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 22:44:09,088 INFO L158 Benchmark]: RCFGBuilder took 360.33ms. Allocated memory is still 199.2MB. Free memory was 149.8MB in the beginning and 133.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-03-31 22:44:09,092 INFO L158 Benchmark]: TraceAbstraction took 229.95ms. Allocated memory is still 199.2MB. Free memory was 132.5MB in the beginning and 116.2MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-03-31 22:44:09,095 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 165.7MB. Free memory is still 113.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 196.46ms. Allocated memory is still 199.2MB. Free memory was 163.9MB in the beginning and 151.9MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.17ms. Allocated memory is still 199.2MB. Free memory was 151.9MB in the beginning and 150.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 360.33ms. Allocated memory is still 199.2MB. Free memory was 149.8MB in the beginning and 133.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 229.95ms. Allocated memory is still 199.2MB. Free memory was 132.5MB in the beginning and 116.2MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 70]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 52, overapproximation of someBinaryDOUBLEComparisonOperation at line 57, overapproximation of to_real at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 51. Possible FailurePath: [L1] int __return_main; [L12] int __tmp_160_0; [L13] int __tmp_160_1; [L14] int __tmp_160_2; [L15] int __tmp_142_0; [L16] int __tmp_142_1; [L17] int __tmp_136_0; [L18] int __return_165; [L21] float main__X; [L22] float main__Y; [L23] float main__S; [L24] float main__R; [L25] float main__D; [L26] int main__i; [L27] main__Y = 0 [L28] main__i = 0 VAL [\old(__return_165)=0, \old(__tmp_136_0)=0, \old(__tmp_142_0)=0, \old(__tmp_142_1)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__i=0] [L29] COND TRUE main__i < 100000 [L31] main__X = __VERIFIER_nondet_float() [L32] main__D = __VERIFIER_nondet_float() [L33] int main____CPAchecker_TMP_0; VAL [\old(__return_165)=0, \old(__tmp_136_0)=0, \old(__tmp_142_0)=0, \old(__tmp_142_1)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__i=0] [L34] COND TRUE main__X >= -128.0 VAL [\old(__return_165)=0, \old(__tmp_136_0)=0, \old(__tmp_142_0)=0, \old(__tmp_142_1)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__i=0] [L36] COND TRUE main__X <= 128.0 [L38] main____CPAchecker_TMP_0 = 1 VAL [\old(__return_165)=0, \old(__tmp_136_0)=0, \old(__tmp_142_0)=0, \old(__tmp_142_1)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__i=0] [L39] COND TRUE main____CPAchecker_TMP_0 != 0 [L41] int main____CPAchecker_TMP_1; VAL [\old(__return_165)=0, \old(__tmp_136_0)=0, \old(__tmp_142_0)=0, \old(__tmp_142_1)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__i=0] [L42] COND TRUE main__D >= 0.0 VAL [\old(__return_165)=0, \old(__tmp_136_0)=0, \old(__tmp_142_0)=0, \old(__tmp_142_1)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__i=0] [L44] COND TRUE main__D <= 16.0 [L46] main____CPAchecker_TMP_1 = 1 VAL [\old(__return_165)=0, \old(__tmp_136_0)=0, \old(__tmp_142_0)=0, \old(__tmp_142_1)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__i=0] [L47] COND TRUE main____CPAchecker_TMP_1 != 0 [L49] main__S = main__Y [L50] main__Y = main__X [L51] main__R = main__X - main__S [L52] COND FALSE !(main__R <= (-main__D)) [L227] COND FALSE !(main__R >= main__D) [L56] int main____CPAchecker_TMP_2; VAL [\old(__return_165)=0, \old(__tmp_136_0)=0, \old(__tmp_142_0)=0, \old(__tmp_142_1)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__S=64, main__X=63, main__Y=63, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__i=0] [L57] COND FALSE !(main__Y >= -129.0) VAL [\old(__return_165)=0, \old(__tmp_136_0)=0, \old(__tmp_142_0)=0, \old(__tmp_142_1)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__S=64, main__X=63, main__Y=63, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__i=0] [L216] main____CPAchecker_TMP_2 = 0 VAL [\old(__return_165)=0, \old(__tmp_136_0)=0, \old(__tmp_142_0)=0, \old(__tmp_142_1)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__S=64, main__X=63, main__Y=63, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__i=0] [L64] int __tmp_1; [L65] __tmp_1 = main____CPAchecker_TMP_2 [L66] int __VERIFIER_assert__cond; [L67] __VERIFIER_assert__cond = __tmp_1 VAL [\old(__return_165)=0, \old(__tmp_136_0)=0, \old(__tmp_142_0)=0, \old(__tmp_142_1)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __VERIFIER_assert__cond=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __tmp_1=0, main__S=64, main__X=63, main__Y=63, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__i=0] [L68] COND TRUE __VERIFIER_assert__cond == 0 VAL [\old(__return_165)=0, \old(__tmp_136_0)=0, \old(__tmp_142_0)=0, \old(__tmp_142_1)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __VERIFIER_assert__cond=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __tmp_1=0, main__S=64, main__X=63, main__Y=63, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__i=0] [L70] reach_error() VAL [\old(__return_165)=0, \old(__tmp_136_0)=0, \old(__tmp_142_0)=0, \old(__tmp_142_1)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __VERIFIER_assert__cond=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __tmp_1=0, main__S=64, main__X=63, main__Y=63, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__i=0] - UnprovableResult [Line: 126]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 22:44:09,114 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...