./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/fdim.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/fdim.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 082839b113e645749e4f971b7de0b7472e2f288decd6e09a4d0069d4314902d8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:37:29,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:37:29,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:37:29,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:37:29,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:37:29,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:37:29,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:37:29,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:37:29,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:37:29,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:37:29,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:37:29,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:37:29,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:37:29,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:37:29,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:37:29,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:37:29,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:37:29,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:37:29,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:37:29,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:37:29,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:37:29,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:37:29,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:37:29,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:37:29,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:37:29,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:37:29,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:37:29,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:37:29,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:37:29,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:37:29,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:37:29,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:37:29,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:37:29,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:37:29,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:37:29,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:37:29,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:37:29,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:37:29,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:37:29,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:37:29,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:37:29,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 01:37:29,402 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:37:29,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:37:29,404 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:37:29,404 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:37:29,405 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:37:29,405 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:37:29,406 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:37:29,406 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:37:29,406 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:37:29,407 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:37:29,407 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:37:29,408 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:37:29,408 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:37:29,408 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:37:29,409 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:37:29,409 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:37:29,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:37:29,410 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:37:29,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:37:29,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:37:29,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:37:29,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:37:29,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:37:29,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:37:29,413 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:37:29,414 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:37:29,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:37:29,414 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:37:29,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:37:29,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:37:29,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:37:29,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:37:29,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:37:29,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:37:29,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:37:29,417 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:37:29,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:37:29,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:37:29,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:37:29,418 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:37:29,418 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 082839b113e645749e4f971b7de0b7472e2f288decd6e09a4d0069d4314902d8 [2021-11-13 01:37:29,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:37:29,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:37:29,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:37:29,753 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:37:29,754 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:37:29,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-11-13 01:37:29,824 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/data/a6df39072/98715f6e705946a78d324e689ce67e3d/FLAG1f909cc82 [2021-11-13 01:37:30,333 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:37:30,333 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-11-13 01:37:30,365 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/data/a6df39072/98715f6e705946a78d324e689ce67e3d/FLAG1f909cc82 [2021-11-13 01:37:30,643 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/data/a6df39072/98715f6e705946a78d324e689ce67e3d [2021-11-13 01:37:30,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:37:30,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:37:30,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:37:30,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:37:30,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:37:30,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:37:30" (1/1) ... [2021-11-13 01:37:30,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b8bb282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:30, skipping insertion in model container [2021-11-13 01:37:30,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:37:30" (1/1) ... [2021-11-13 01:37:30,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:37:30,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:37:31,287 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/sv-benchmarks/c/floats-esbmc-regression/fdim.i[36279,36292] [2021-11-13 01:37:31,304 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fdim at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:853) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleBinaryFloatFunction(StandardFunctionHandler.java:1767) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1437) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1381) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3254) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2328) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-13 01:37:31,309 INFO L158 Benchmark]: Toolchain (without parser) took 660.55ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 49.7MB in the beginning and 80.7MB in the end (delta: -31.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 01:37:31,311 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 86.0MB. Free memory was 67.5MB in the beginning and 67.5MB in the end (delta: 41.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:37:31,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 658.16ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 49.5MB in the beginning and 80.7MB in the end (delta: -31.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 01:37:31,316 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 86.0MB. Free memory was 67.5MB in the beginning and 67.5MB in the end (delta: 41.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 658.16ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 49.5MB in the beginning and 80.7MB in the end (delta: -31.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fdim de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fdim: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:853) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/fdim.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 082839b113e645749e4f971b7de0b7472e2f288decd6e09a4d0069d4314902d8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:37:33,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:37:33,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:37:33,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:37:33,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:37:33,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:37:33,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:37:33,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:37:33,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:37:33,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:37:33,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:37:33,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:37:33,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:37:33,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:37:33,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:37:33,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:37:33,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:37:33,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:37:33,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:37:33,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:37:33,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:37:33,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:37:33,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:37:33,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:37:33,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:37:33,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:37:33,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:37:33,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:37:33,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:37:33,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:37:33,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:37:33,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:37:33,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:37:33,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:37:33,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:37:33,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:37:33,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:37:33,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:37:33,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:37:33,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:37:33,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:37:33,846 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-13 01:37:33,897 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:37:33,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:37:33,899 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:37:33,900 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:37:33,900 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:37:33,900 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:37:33,901 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:37:33,901 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:37:33,901 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:37:33,901 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:37:33,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:37:33,905 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:37:33,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:37:33,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:37:33,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:37:33,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:37:33,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:37:33,906 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:37:33,907 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:37:33,907 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:37:33,907 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:37:33,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:37:33,908 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:37:33,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:37:33,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:37:33,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:37:33,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:37:33,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:37:33,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:37:33,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:37:33,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:37:33,910 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:37:33,910 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:37:33,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:37:33,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:37:33,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:37:33,912 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 082839b113e645749e4f971b7de0b7472e2f288decd6e09a4d0069d4314902d8 [2021-11-13 01:37:34,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:37:34,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:37:34,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:37:34,381 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:37:34,382 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:37:34,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-11-13 01:37:34,473 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/data/e193be8cd/3c8d3421a88247d2ac835f1c46969f04/FLAG22bc217cf [2021-11-13 01:37:35,248 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:37:35,249 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-11-13 01:37:35,272 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/data/e193be8cd/3c8d3421a88247d2ac835f1c46969f04/FLAG22bc217cf [2021-11-13 01:37:35,469 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/data/e193be8cd/3c8d3421a88247d2ac835f1c46969f04 [2021-11-13 01:37:35,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:37:35,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:37:35,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:37:35,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:37:35,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:37:35,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:37:35" (1/1) ... [2021-11-13 01:37:35,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6126981e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:35, skipping insertion in model container [2021-11-13 01:37:35,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:37:35" (1/1) ... [2021-11-13 01:37:35,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:37:35,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:37:36,152 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/sv-benchmarks/c/floats-esbmc-regression/fdim.i[36279,36292] [2021-11-13 01:37:36,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:37:36,221 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:37:36,292 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/sv-benchmarks/c/floats-esbmc-regression/fdim.i[36279,36292] [2021-11-13 01:37:36,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:37:36,522 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:37:36,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:36 WrapperNode [2021-11-13 01:37:36,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:37:36,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:37:36,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:37:36,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:37:36,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:36" (1/1) ... [2021-11-13 01:37:36,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:36" (1/1) ... [2021-11-13 01:37:36,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:37:36,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:37:36,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:37:36,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:37:36,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:36" (1/1) ... [2021-11-13 01:37:36,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:36" (1/1) ... [2021-11-13 01:37:36,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:36" (1/1) ... [2021-11-13 01:37:36,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:36" (1/1) ... [2021-11-13 01:37:36,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:36" (1/1) ... [2021-11-13 01:37:36,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:36" (1/1) ... [2021-11-13 01:37:36,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:36" (1/1) ... [2021-11-13 01:37:36,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:37:36,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:37:36,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:37:36,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:37:36,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:36" (1/1) ... [2021-11-13 01:37:36,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:37:36,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:37:36,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:37:36,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:37:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:37:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 01:37:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 01:37:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:37:36,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:37:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:37:36,959 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:37:36,960 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 01:37:36,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:37:36 BoogieIcfgContainer [2021-11-13 01:37:36,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:37:36,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:37:36,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:37:36,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:37:36,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:37:35" (1/3) ... [2021-11-13 01:37:36,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f29066c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:37:36, skipping insertion in model container [2021-11-13 01:37:36,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:36" (2/3) ... [2021-11-13 01:37:36,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f29066c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:37:36, skipping insertion in model container [2021-11-13 01:37:36,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:37:36" (3/3) ... [2021-11-13 01:37:36,972 INFO L111 eAbstractionObserver]: Analyzing ICFG fdim.i [2021-11-13 01:37:36,978 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:37:36,979 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:37:37,053 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:37:37,062 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 01:37:37,062 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:37:37,083 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 01:37:37,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 01:37:37,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:37:37,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 01:37:37,090 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:37:37,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:37:37,097 INFO L85 PathProgramCache]: Analyzing trace with hash 890017146, now seen corresponding path program 1 times [2021-11-13 01:37:37,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:37:37,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156805443] [2021-11-13 01:37:37,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:37:37,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:37:37,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:37:37,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:37:37,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:37:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:37:37,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:37:37,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:37:38,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:37:38,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:37:38,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:37:38,460 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:37:38,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156805443] [2021-11-13 01:37:38,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156805443] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:37:38,461 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:37:38,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-13 01:37:38,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131965004] [2021-11-13 01:37:38,465 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:37:38,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:37:38,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:37:38,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:37:38,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:37:38,513 INFO L87 Difference]: Start difference. First operand has 16 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:37:38,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:37:38,773 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2021-11-13 01:37:38,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:37:38,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-13 01:37:38,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:37:38,792 INFO L225 Difference]: With dead ends: 33 [2021-11-13 01:37:38,792 INFO L226 Difference]: Without dead ends: 15 [2021-11-13 01:37:38,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:37:38,802 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 6 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 185.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.26ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 208.91ms IncrementalHoareTripleChecker+Time [2021-11-13 01:37:38,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 54 Invalid, 35 Unknown, 0 Unchecked, 5.26ms Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 208.91ms Time] [2021-11-13 01:37:38,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-13 01:37:38,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-13 01:37:38,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-13 01:37:38,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-11-13 01:37:38,860 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6 [2021-11-13 01:37:38,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:37:38,862 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-11-13 01:37:38,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:37:38,863 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-11-13 01:37:38,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 01:37:38,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:37:38,867 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:37:38,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:37:39,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:37:39,069 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:37:39,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:37:39,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1774914298, now seen corresponding path program 1 times [2021-11-13 01:37:39,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:37:39,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452066908] [2021-11-13 01:37:39,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:37:39,072 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:37:39,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:37:39,079 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:37:39,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:37:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:37:39,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:37:39,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:37:39,965 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-13 01:37:39,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:37:42,095 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-13 01:37:42,095 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:37:42,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452066908] [2021-11-13 01:37:42,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452066908] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:37:42,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:37:42,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2021-11-13 01:37:42,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093494284] [2021-11-13 01:37:42,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:37:42,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:37:42,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:37:42,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:37:42,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:37:42,101 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-13 01:37:43,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:37:43,929 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-11-13 01:37:43,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:37:43,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2021-11-13 01:37:43,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:37:43,936 INFO L225 Difference]: With dead ends: 15 [2021-11-13 01:37:43,936 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 01:37:43,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:37:43,937 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 13 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 444.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.43ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 489.70ms IncrementalHoareTripleChecker+Time [2021-11-13 01:37:43,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 17 Invalid, 18 Unknown, 0 Unchecked, 1.43ms Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 489.70ms Time] [2021-11-13 01:37:43,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 01:37:43,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 01:37:43,939 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) [2021-11-13 01:37:43,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 01:37:43,939 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2021-11-13 01:37:43,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:37:43,939 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 01:37:43,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-13 01:37:43,939 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 01:37:43,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 01:37:43,941 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:37:43,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:37:44,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:37:44,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 01:37:44,789 INFO L854 garLoopResultBuilder]: At program point L882-1(line 882) the Hoare annotation is: (fp.eq (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0))) (fp.sub currentRoundingMode .cse0 (fp.neg .cse0))) (_ +oo 11 53)) [2021-11-13 01:37:44,789 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 01:37:44,789 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 01:37:44,789 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 01:37:44,790 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 01:37:44,790 INFO L858 garLoopResultBuilder]: For program point L887(lines 880 888) no Hoare annotation was computed. [2021-11-13 01:37:44,790 INFO L854 garLoopResultBuilder]: At program point L885(line 885) the Hoare annotation is: (fp.eq (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0))) (fp.sub currentRoundingMode .cse0 (fp.neg .cse0))) (_ +oo 11 53)) [2021-11-13 01:37:44,790 INFO L854 garLoopResultBuilder]: At program point L884(line 884) the Hoare annotation is: (fp.eq (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0))) (fp.sub currentRoundingMode .cse0 (fp.neg .cse0))) (_ +oo 11 53)) [2021-11-13 01:37:44,791 INFO L854 garLoopResultBuilder]: At program point L883(line 883) the Hoare annotation is: (fp.eq (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0))) (fp.sub currentRoundingMode .cse0 (fp.neg .cse0))) (_ +oo 11 53)) [2021-11-13 01:37:44,791 INFO L854 garLoopResultBuilder]: At program point L882(line 882) the Hoare annotation is: (fp.eq (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0))) (fp.sub currentRoundingMode .cse0 (fp.neg .cse0))) (_ +oo 11 53)) [2021-11-13 01:37:44,791 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(line 878) the Hoare annotation is: true [2021-11-13 01:37:44,792 INFO L858 garLoopResultBuilder]: For program point L878(line 878) no Hoare annotation was computed. [2021-11-13 01:37:44,792 INFO L858 garLoopResultBuilder]: For program point L878-1(line 878) no Hoare annotation was computed. [2021-11-13 01:37:44,792 INFO L858 garLoopResultBuilder]: For program point L878-3(line 878) no Hoare annotation was computed. [2021-11-13 01:37:44,792 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(line 878) no Hoare annotation was computed. [2021-11-13 01:37:44,792 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 878) no Hoare annotation was computed. [2021-11-13 01:37:44,796 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-13 01:37:44,798 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:37:44,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:37:44 BoogieIcfgContainer [2021-11-13 01:37:44,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:37:44,806 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:37:44,806 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:37:44,806 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:37:44,807 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:37:36" (3/4) ... [2021-11-13 01:37:44,810 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 01:37:44,818 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-13 01:37:44,823 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-13 01:37:44,823 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-13 01:37:44,823 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-13 01:37:44,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 01:37:44,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 01:37:44,860 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 01:37:44,861 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:37:44,862 INFO L158 Benchmark]: Toolchain (without parser) took 9388.35ms. Allocated memory was 60.8MB in the beginning and 107.0MB in the end (delta: 46.1MB). Free memory was 38.0MB in the beginning and 36.1MB in the end (delta: 1.9MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2021-11-13 01:37:44,862 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 60.8MB. Free memory was 41.7MB in the beginning and 41.6MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:37:44,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1047.73ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 37.7MB in the beginning and 56.6MB in the end (delta: -18.8MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2021-11-13 01:37:44,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.30ms. Allocated memory is still 86.0MB. Free memory was 56.6MB in the beginning and 53.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:37:44,864 INFO L158 Benchmark]: Boogie Preprocessor took 34.32ms. Allocated memory is still 86.0MB. Free memory was 53.8MB in the beginning and 52.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:37:44,865 INFO L158 Benchmark]: RCFGBuilder took 333.33ms. Allocated memory is still 86.0MB. Free memory was 52.5MB in the beginning and 42.9MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 01:37:44,866 INFO L158 Benchmark]: TraceAbstraction took 7840.25ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 42.4MB in the beginning and 39.2MB in the end (delta: 3.2MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2021-11-13 01:37:44,866 INFO L158 Benchmark]: Witness Printer took 55.51ms. Allocated memory is still 107.0MB. Free memory was 38.2MB in the beginning and 36.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:37:44,870 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 60.8MB. Free memory was 41.7MB in the beginning and 41.6MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1047.73ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 37.7MB in the beginning and 56.6MB in the end (delta: -18.8MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.30ms. Allocated memory is still 86.0MB. Free memory was 56.6MB in the beginning and 53.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.32ms. Allocated memory is still 86.0MB. Free memory was 53.8MB in the beginning and 52.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 333.33ms. Allocated memory is still 86.0MB. Free memory was 52.5MB in the beginning and 42.9MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7840.25ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 42.4MB in the beginning and 39.2MB in the end (delta: 3.2MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * Witness Printer took 55.51ms. Allocated memory is still 107.0MB. Free memory was 38.2MB in the beginning and 36.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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: 878]: 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 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 2, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 698.62ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 71 SdHoareTripleChecker+Invalid, 630.06ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 21 mSDtfsCounter, 45 mSolverCounterSat, 6.69ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 6 LocationsWithAnnotation, 14 PreInvPairs, 18 NumberOfFragments, 56 HoareAnnotationTreeSize, 14 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 67 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 184 SizeOfPredicates, 5 NumberOfNonLiveVariables, 92 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 56/64 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 RESULT: Ultimate proved your program to be correct! [2021-11-13 01:37:44,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31aed0c5-e854-4d4d-aba8-ff42283451ae/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE