/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 EqDomain -i ../sv-benchmarks/c/float-newlib/double_req_bl_1052a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 10:49:33,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 10:49:33,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 10:49:33,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 10:49:33,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 10:49:33,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 10:49:33,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 10:49:33,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 10:49:33,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 10:49:33,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 10:49:33,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 10:49:33,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 10:49:33,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 10:49:33,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 10:49:33,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 10:49:33,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 10:49:33,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 10:49:33,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 10:49:33,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 10:49:33,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 10:49:33,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 10:49:33,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 10:49:33,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 10:49:33,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 10:49:33,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 10:49:33,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 10:49:33,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 10:49:33,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 10:49:33,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 10:49:33,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 10:49:33,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 10:49:33,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 10:49:33,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 10:49:33,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 10:49:33,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 10:49:33,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 10:49:33,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 10:49:33,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 10:49:33,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 10:49:33,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 10:49:33,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 10:49:33,420 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 [2023-04-01 10:49:33,449 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 10:49:33,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 10:49:33,450 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 10:49:33,450 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 10:49:33,451 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 10:49:33,451 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 10:49:33,451 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 10:49:33,451 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 10:49:33,451 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 10:49:33,451 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 10:49:33,452 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 10:49:33,452 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 10:49:33,452 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 10:49:33,452 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 10:49:33,452 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 10:49:33,452 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 10:49:33,453 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 10:49:33,453 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 10:49:33,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 10:49:33,453 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 10:49:33,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 10:49:33,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 10:49:33,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 10:49:33,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 10:49:33,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 10:49:33,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 10:49:33,454 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 10:49:33,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 10:49:33,454 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 10:49:33,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 10:49:33,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 10:49:33,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 10:49:33,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:49:33,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 10:49:33,455 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 10:49:33,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 10:49:33,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 10:49:33,456 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 10:49:33,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 10:49:33,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 10:49:33,456 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 10:49:33,456 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 10:49:33,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 10:49:33,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 10:49:33,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 10:49:33,688 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 10:49:33,689 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 10:49:33,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1052a.c [2023-04-01 10:49:34,857 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 10:49:35,039 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 10:49:35,040 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052a.c [2023-04-01 10:49:35,045 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0119e576c/6692635dad6b405d95ab7397760cdcfd/FLAGedb34b432 [2023-04-01 10:49:35,058 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0119e576c/6692635dad6b405d95ab7397760cdcfd [2023-04-01 10:49:35,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 10:49:35,062 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 10:49:35,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 10:49:35,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 10:49:35,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 10:49:35,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:49:35" (1/1) ... [2023-04-01 10:49:35,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa93ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:35, skipping insertion in model container [2023-04-01 10:49:35,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:49:35" (1/1) ... [2023-04-01 10:49:35,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 10:49:35,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 10:49:35,241 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-newlib/double_req_bl_1052a.c[2407,2420] [2023-04-01 10:49:35,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:49:35,255 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 10:49:35,279 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-newlib/double_req_bl_1052a.c[2407,2420] [2023-04-01 10:49:35,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:49:35,292 INFO L208 MainTranslator]: Completed translation [2023-04-01 10:49:35,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:35 WrapperNode [2023-04-01 10:49:35,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 10:49:35,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 10:49:35,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 10:49:35,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 10:49:35,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:35" (1/1) ... [2023-04-01 10:49:35,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:35" (1/1) ... [2023-04-01 10:49:35,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:35" (1/1) ... [2023-04-01 10:49:35,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:35" (1/1) ... [2023-04-01 10:49:35,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:35" (1/1) ... [2023-04-01 10:49:35,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:35" (1/1) ... [2023-04-01 10:49:35,334 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:35" (1/1) ... [2023-04-01 10:49:35,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:35" (1/1) ... [2023-04-01 10:49:35,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 10:49:35,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 10:49:35,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 10:49:35,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 10:49:35,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:35" (1/1) ... [2023-04-01 10:49:35,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:49:35,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 10:49:35,383 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) [2023-04-01 10:49:35,391 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 [2023-04-01 10:49:35,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 10:49:35,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 10:49:35,425 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 10:49:35,425 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2023-04-01 10:49:35,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2023-04-01 10:49:35,427 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 10:49:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 10:49:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 10:49:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 10:49:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 10:49:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2023-04-01 10:49:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 10:49:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-01 10:49:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 10:49:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 10:49:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 10:49:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-01 10:49:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2023-04-01 10:49:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 10:49:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 10:49:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 10:49:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 10:49:35,523 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 10:49:35,526 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 10:49:35,969 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 10:49:36,240 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 10:49:36,240 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-04-01 10:49:36,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:49:36 BoogieIcfgContainer [2023-04-01 10:49:36,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 10:49:36,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 10:49:36,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 10:49:36,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 10:49:36,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 10:49:35" (1/3) ... [2023-04-01 10:49:36,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae0c723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:49:36, skipping insertion in model container [2023-04-01 10:49:36,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:35" (2/3) ... [2023-04-01 10:49:36,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae0c723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:49:36, skipping insertion in model container [2023-04-01 10:49:36,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:49:36" (3/3) ... [2023-04-01 10:49:36,252 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052a.c [2023-04-01 10:49:36,267 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 10:49:36,268 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 10:49:36,304 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 10:49:36,310 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;@510516a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 10:49:36,310 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 10:49:36,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 25 states have (on average 1.52) internal successors, (38), 26 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-01 10:49:36,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-04-01 10:49:36,320 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:49:36,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 10:49:36,321 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:49:36,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:49:36,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1339739709, now seen corresponding path program 1 times [2023-04-01 10:49:36,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:49:36,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602704785] [2023-04-01 10:49:36,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:49:36,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:49:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 10:49:36,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 10:49:36,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 10:49:36,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602704785] [2023-04-01 10:49:36,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602704785] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 10:49:36,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 10:49:36,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 10:49:36,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561731135] [2023-04-01 10:49:36,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 10:49:36,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 10:49:36,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 10:49:36,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 10:49:36,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 10:49:36,564 INFO L87 Difference]: Start difference. First operand has 35 states, 25 states have (on average 1.52) internal successors, (38), 26 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-01 10:49:36,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 10:49:36,634 INFO L93 Difference]: Finished difference Result 63 states and 86 transitions. [2023-04-01 10:49:36,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 10:49:36,637 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2023-04-01 10:49:36,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 10:49:36,643 INFO L225 Difference]: With dead ends: 63 [2023-04-01 10:49:36,643 INFO L226 Difference]: Without dead ends: 31 [2023-04-01 10:49:36,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 10:49:36,648 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 10:49:36,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 10:49:36,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-04-01 10:49:36,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-04-01 10:49:36,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 10:49:36,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2023-04-01 10:49:36,671 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 22 [2023-04-01 10:49:36,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 10:49:36,671 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2023-04-01 10:49:36,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-01 10:49:36,672 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2023-04-01 10:49:36,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-04-01 10:49:36,672 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:49:36,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 10:49:36,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 10:49:36,673 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:49:36,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:49:36,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1861162533, now seen corresponding path program 1 times [2023-04-01 10:49:36,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:49:36,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379418900] [2023-04-01 10:49:36,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:49:36,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:49:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 10:49:37,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 10:49:37,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 10:49:37,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379418900] [2023-04-01 10:49:37,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379418900] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 10:49:37,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 10:49:37,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 10:49:37,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37177088] [2023-04-01 10:49:37,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 10:49:37,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 10:49:37,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 10:49:37,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 10:49:37,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 10:49:37,338 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 10:49:37,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 10:49:37,388 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2023-04-01 10:49:37,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-01 10:49:37,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2023-04-01 10:49:37,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 10:49:37,390 INFO L225 Difference]: With dead ends: 31 [2023-04-01 10:49:37,390 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 10:49:37,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 10:49:37,398 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 10:49:37,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 10:49:37,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 10:49:37,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 10:49:37,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-01 10:49:37,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 10:49:37,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2023-04-01 10:49:37,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 10:49:37,406 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 10:49:37,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 10:49:37,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 10:49:37,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 10:49:37,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 10:49:37,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 10:49:37,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 10:49:37,429 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2023-04-01 10:49:37,429 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 3) no Hoare annotation was computed. [2023-04-01 10:49:37,429 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 82 94) the Hoare annotation is: true [2023-04-01 10:49:37,429 INFO L899 garLoopResultBuilder]: For program point L84-1(lines 84 89) no Hoare annotation was computed. [2023-04-01 10:49:37,430 INFO L902 garLoopResultBuilder]: At program point L84-2(lines 84 89) the Hoare annotation is: true [2023-04-01 10:49:37,430 INFO L899 garLoopResultBuilder]: For program point L84-3(lines 84 89) no Hoare annotation was computed. [2023-04-01 10:49:37,430 INFO L899 garLoopResultBuilder]: For program point isinf_doubleEXIT(lines 82 94) no Hoare annotation was computed. [2023-04-01 10:49:37,430 INFO L899 garLoopResultBuilder]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2023-04-01 10:49:37,430 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 96 112) no Hoare annotation was computed. [2023-04-01 10:49:37,430 INFO L899 garLoopResultBuilder]: For program point L108(line 108) no Hoare annotation was computed. [2023-04-01 10:49:37,430 INFO L902 garLoopResultBuilder]: At program point L107(line 107) the Hoare annotation is: true [2023-04-01 10:49:37,431 INFO L899 garLoopResultBuilder]: For program point L107-1(line 107) no Hoare annotation was computed. [2023-04-01 10:49:37,432 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 96 112) the Hoare annotation is: true [2023-04-01 10:49:37,432 INFO L899 garLoopResultBuilder]: For program point L107-2(lines 107 110) no Hoare annotation was computed. [2023-04-01 10:49:37,432 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 96 112) no Hoare annotation was computed. [2023-04-01 10:49:37,432 INFO L902 garLoopResultBuilder]: At program point L104(line 104) the Hoare annotation is: true [2023-04-01 10:49:37,432 INFO L899 garLoopResultBuilder]: For program point L104-1(line 104) no Hoare annotation was computed. [2023-04-01 10:49:37,432 INFO L899 garLoopResultBuilder]: For program point floor_doubleFINAL(lines 18 79) no Hoare annotation was computed. [2023-04-01 10:49:37,432 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 71) no Hoare annotation was computed. [2023-04-01 10:49:37,432 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 48) no Hoare annotation was computed. [2023-04-01 10:49:37,432 INFO L899 garLoopResultBuilder]: For program point L21-1(lines 21 26) no Hoare annotation was computed. [2023-04-01 10:49:37,433 INFO L902 garLoopResultBuilder]: At program point L21-2(lines 21 26) the Hoare annotation is: true [2023-04-01 10:49:37,433 INFO L899 garLoopResultBuilder]: For program point L21-3(lines 21 26) no Hoare annotation was computed. [2023-04-01 10:49:37,434 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 18 79) the Hoare annotation is: true [2023-04-01 10:49:37,434 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 77) no Hoare annotation was computed. [2023-04-01 10:49:37,434 INFO L902 garLoopResultBuilder]: At program point L72-1(lines 72 77) the Hoare annotation is: true [2023-04-01 10:49:37,434 INFO L899 garLoopResultBuilder]: For program point L72-2(lines 72 77) no Hoare annotation was computed. [2023-04-01 10:49:37,434 INFO L899 garLoopResultBuilder]: For program point L56-4(lines 56 57) no Hoare annotation was computed. [2023-04-01 10:49:37,435 INFO L899 garLoopResultBuilder]: For program point L40-8(lines 40 41) no Hoare annotation was computed. [2023-04-01 10:49:37,435 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 71) no Hoare annotation was computed. [2023-04-01 10:49:37,435 INFO L899 garLoopResultBuilder]: For program point floor_doubleEXIT(lines 18 79) no Hoare annotation was computed. [2023-04-01 10:49:37,435 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 10:49:37,435 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 10:49:37,437 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 10:49:37,437 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-04-01 10:49:37,437 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 10:49:37,439 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 10:49:37,442 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-01 10:49:37,446 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 10:49:37,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 10:49:37 BoogieIcfgContainer [2023-04-01 10:49:37,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 10:49:37,456 INFO L158 Benchmark]: Toolchain (without parser) took 2392.23ms. Allocated memory is still 266.3MB. Free memory was 219.6MB in the beginning and 172.8MB in the end (delta: 46.7MB). Peak memory consumption was 48.3MB. Max. memory is 8.0GB. [2023-04-01 10:49:37,458 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 191.9MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 10:49:37,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.32ms. Allocated memory is still 266.3MB. Free memory was 219.6MB in the beginning and 208.0MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-04-01 10:49:37,459 INFO L158 Benchmark]: Boogie Preprocessor took 44.46ms. Allocated memory is still 266.3MB. Free memory was 208.0MB in the beginning and 205.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 10:49:37,459 INFO L158 Benchmark]: RCFGBuilder took 903.66ms. Allocated memory is still 266.3MB. Free memory was 205.9MB in the beginning and 144.1MB in the end (delta: 61.9MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. [2023-04-01 10:49:37,459 INFO L158 Benchmark]: TraceAbstraction took 1209.25ms. Allocated memory is still 266.3MB. Free memory was 143.0MB in the beginning and 172.8MB in the end (delta: -29.8MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 10:49:37,460 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 191.9MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 230.32ms. Allocated memory is still 266.3MB. Free memory was 219.6MB in the beginning and 208.0MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.46ms. Allocated memory is still 266.3MB. Free memory was 208.0MB in the beginning and 205.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 903.66ms. Allocated memory is still 266.3MB. Free memory was 205.9MB in the beginning and 144.1MB in the end (delta: 61.9MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. * TraceAbstraction took 1209.25ms. Allocated memory is still 266.3MB. Free memory was 143.0MB in the beginning and 172.8MB in the end (delta: -29.8MB). There was no memory consumed. 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 - PositiveResult [Line: 108]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 55 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 13 PreInvPairs, 17 NumberOfFragments, 11 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-04-01 10:49:37,481 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...