./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0870b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0870b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P --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 e0eb8afc8d7818fa0271ce015ce884b6780ab63de83244d090d51fa572cb54f7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:52:06,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:52:06,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:52:06,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:52:06,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:52:06,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:52:06,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:52:06,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:52:06,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:52:06,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:52:06,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:52:06,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:52:06,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:52:06,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:52:06,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:52:06,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:52:06,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:52:06,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:52:06,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:52:06,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:52:06,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:52:06,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:52:06,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:52:06,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:52:06,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:52:06,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:52:06,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:52:06,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:52:06,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:52:06,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:52:06,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:52:06,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:52:06,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:52:06,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:52:06,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:52:06,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:52:06,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:52:06,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:52:06,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:52:06,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:52:06,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:52:06,368 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:52:06,411 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:52:06,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:52:06,412 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:52:06,412 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:52:06,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:52:06,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:52:06,420 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:52:06,420 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:52:06,420 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:52:06,421 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:52:06,422 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:52:06,422 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:52:06,422 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:52:06,422 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:52:06,423 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:52:06,423 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:52:06,423 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:52:06,423 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:52:06,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:52:06,425 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:52:06,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:52:06,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:52:06,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:52:06,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:52:06,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:52:06,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:52:06,435 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:52:06,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:52:06,436 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:52:06,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:52:06,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:52:06,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:52:06,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:52:06,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:52:06,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:52:06,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:52:06,438 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:52:06,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:52:06,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:52:06,438 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:52:06,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:52:06,439 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_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0eb8afc8d7818fa0271ce015ce884b6780ab63de83244d090d51fa572cb54f7 [2021-11-21 01:52:06,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:52:06,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:52:06,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:52:06,716 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:52:06,716 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:52:06,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/double_req_bl_0870b.c [2021-11-21 01:52:06,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/data/2aa193ef9/8e06ed1f4ac24063b197b65c292d53a8/FLAG70a31cc7c [2021-11-21 01:52:07,267 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:52:07,268 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/sv-benchmarks/c/float-newlib/double_req_bl_0870b.c [2021-11-21 01:52:07,295 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/data/2aa193ef9/8e06ed1f4ac24063b197b65c292d53a8/FLAG70a31cc7c [2021-11-21 01:52:07,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/data/2aa193ef9/8e06ed1f4ac24063b197b65c292d53a8 [2021-11-21 01:52:07,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:52:07,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:52:07,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:52:07,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:52:07,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:52:07,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:52:07" (1/1) ... [2021-11-21 01:52:07,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c13e69f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:07, skipping insertion in model container [2021-11-21 01:52:07,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:52:07" (1/1) ... [2021-11-21 01:52:07,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:52:07,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:52:08,030 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$49(StandardFunctionHandler.java:414) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:235) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1434) 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.FunctionHandler.handleReturnStatement(FunctionHandler.java:539) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2021) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1633) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1069) 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.visit(CHandler.java:1610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1069) 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:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1456) 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:3268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:595) 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) [2021-11-21 01:52:08,037 INFO L158 Benchmark]: Toolchain (without parser) took 393.14ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 36.8MB in the beginning and 67.8MB in the end (delta: -31.1MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2021-11-21 01:52:08,039 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 79.7MB. Free memory was 54.3MB in the beginning and 54.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:52:08,040 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.47ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 36.6MB in the beginning and 67.8MB in the end (delta: -31.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2021-11-21 01:52:08,042 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 79.7MB. Free memory was 54.3MB in the beginning and 54.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.47ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 36.6MB in the beginning and 67.8MB in the end (delta: -31.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) 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_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0870b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P --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 e0eb8afc8d7818fa0271ce015ce884b6780ab63de83244d090d51fa572cb54f7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:52:10,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:52:10,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:52:10,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:52:10,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:52:10,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:52:10,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:52:10,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:52:10,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:52:10,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:52:10,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:52:10,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:52:10,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:52:10,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:52:10,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:52:10,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:52:10,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:52:10,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:52:10,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:52:10,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:52:10,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:52:10,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:52:10,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:52:10,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:52:10,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:52:10,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:52:10,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:52:10,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:52:10,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:52:10,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:52:10,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:52:10,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:52:10,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:52:10,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:52:10,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:52:10,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:52:10,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:52:10,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:52:10,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:52:10,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:52:10,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:52:10,567 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-21 01:52:10,608 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:52:10,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:52:10,610 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:52:10,610 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:52:10,611 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:52:10,611 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:52:10,612 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:52:10,612 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:52:10,612 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:52:10,613 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:52:10,614 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:52:10,614 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:52:10,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:52:10,616 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:52:10,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:52:10,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:52:10,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:52:10,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:52:10,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:52:10,618 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 01:52:10,618 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 01:52:10,619 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:52:10,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:52:10,619 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:52:10,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:52:10,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:52:10,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 01:52:10,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:52:10,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:52:10,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:52:10,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:52:10,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:52:10,623 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 01:52:10,623 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 01:52:10,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:52:10,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:52:10,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:52:10,624 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_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0eb8afc8d7818fa0271ce015ce884b6780ab63de83244d090d51fa572cb54f7 [2021-11-21 01:52:11,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:52:11,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:52:11,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:52:11,068 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:52:11,069 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:52:11,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/double_req_bl_0870b.c [2021-11-21 01:52:11,144 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/data/f0aecddd6/55e2743f6a254a7f8609959b44c92e08/FLAG77694ed84 [2021-11-21 01:52:11,768 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:52:11,769 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/sv-benchmarks/c/float-newlib/double_req_bl_0870b.c [2021-11-21 01:52:11,780 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/data/f0aecddd6/55e2743f6a254a7f8609959b44c92e08/FLAG77694ed84 [2021-11-21 01:52:12,048 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/data/f0aecddd6/55e2743f6a254a7f8609959b44c92e08 [2021-11-21 01:52:12,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:52:12,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:52:12,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:52:12,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:52:12,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:52:12,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:52:12" (1/1) ... [2021-11-21 01:52:12,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@665c04cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:12, skipping insertion in model container [2021-11-21 01:52:12,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:52:12" (1/1) ... [2021-11-21 01:52:12,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:52:12,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:52:12,518 WARN L230 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_34982d55-ed08-4e49-9684-d63b98911b9c/sv-benchmarks/c/float-newlib/double_req_bl_0870b.c[14187,14200] [2021-11-21 01:52:12,520 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:52:12,543 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:52:12,705 WARN L230 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_34982d55-ed08-4e49-9684-d63b98911b9c/sv-benchmarks/c/float-newlib/double_req_bl_0870b.c[14187,14200] [2021-11-21 01:52:12,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:52:12,734 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:52:12,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:12 WrapperNode [2021-11-21 01:52:12,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:52:12,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:52:12,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:52:12,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:52:12,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:12" (1/1) ... [2021-11-21 01:52:12,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:12" (1/1) ... [2021-11-21 01:52:12,818 INFO L137 Inliner]: procedures = 25, calls = 159, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 762 [2021-11-21 01:52:12,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:52:12,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:52:12,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:52:12,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:52:12,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:12" (1/1) ... [2021-11-21 01:52:12,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:12" (1/1) ... [2021-11-21 01:52:12,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:12" (1/1) ... [2021-11-21 01:52:12,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:12" (1/1) ... [2021-11-21 01:52:12,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:12" (1/1) ... [2021-11-21 01:52:12,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:12" (1/1) ... [2021-11-21 01:52:12,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:12" (1/1) ... [2021-11-21 01:52:12,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:52:12,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:52:12,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:52:12,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:52:12,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:12" (1/1) ... [2021-11-21 01:52:12,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:52:12,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:52:12,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:52:13,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:52:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:52:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-21 01:52:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2021-11-21 01:52:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2021-11-21 01:52:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-21 01:52:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 01:52:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:52:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-21 01:52:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 01:52:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:52:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:52:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 01:52:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:52:13,262 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:52:13,264 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:53:04,304 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:53:04,313 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:53:04,314 INFO L301 CfgBuilder]: Removed 58 assume(true) statements. [2021-11-21 01:53:04,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:53:04 BoogieIcfgContainer [2021-11-21 01:53:04,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:53:04,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:53:04,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:53:04,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:53:04,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:52:12" (1/3) ... [2021-11-21 01:53:04,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262fe536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:53:04, skipping insertion in model container [2021-11-21 01:53:04,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:12" (2/3) ... [2021-11-21 01:53:04,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262fe536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:53:04, skipping insertion in model container [2021-11-21 01:53:04,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:53:04" (3/3) ... [2021-11-21 01:53:04,327 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0870b.c [2021-11-21 01:53:04,333 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:53:04,333 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:53:04,390 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:53:04,398 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 [2021-11-21 01:53:04,398 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:53:04,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 199 states have (on average 1.7035175879396984) internal successors, (339), 200 states have internal predecessors, (339), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:53:04,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 01:53:04,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:04,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:04,428 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:53:04,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:04,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1213336248, now seen corresponding path program 1 times [2021-11-21 01:53:04,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:53:04,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014883696] [2021-11-21 01:53:04,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:04,450 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:53:04,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:53:04,454 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:53:04,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 01:53:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:04,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 01:53:04,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:53:05,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:53:05,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:53:05,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:53:05,409 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:53:05,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014883696] [2021-11-21 01:53:05,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014883696] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:05,410 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:05,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 01:53:05,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609343178] [2021-11-21 01:53:05,413 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:05,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:53:05,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:53:05,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:53:05,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:53:05,448 INFO L87 Difference]: Start difference. First operand has 205 states, 199 states have (on average 1.7035175879396984) internal successors, (339), 200 states have internal predecessors, (339), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-21 01:53:05,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:05,496 INFO L93 Difference]: Finished difference Result 407 states and 689 transitions. [2021-11-21 01:53:05,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:53:05,498 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) Word has length 11 [2021-11-21 01:53:05,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:05,509 INFO L225 Difference]: With dead ends: 407 [2021-11-21 01:53:05,509 INFO L226 Difference]: Without dead ends: 201 [2021-11-21 01:53:05,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:53:05,517 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:05,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:53:05,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-21 01:53:05,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-11-21 01:53:05,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.403061224489796) internal successors, (275), 196 states have internal predecessors, (275), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:53:05,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 281 transitions. [2021-11-21 01:53:05,572 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 281 transitions. Word has length 11 [2021-11-21 01:53:05,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:05,572 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 281 transitions. [2021-11-21 01:53:05,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-21 01:53:05,573 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 281 transitions. [2021-11-21 01:53:05,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 01:53:05,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:05,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:05,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-21 01:53:05,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:53:05,789 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:53:05,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:05,790 INFO L85 PathProgramCache]: Analyzing trace with hash 15556725, now seen corresponding path program 1 times [2021-11-21 01:53:05,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:53:05,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386191893] [2021-11-21 01:53:05,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:05,791 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:53:05,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:53:05,793 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:53:05,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 01:53:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:06,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 01:53:06,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:53:06,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2021-11-21 01:53:11,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:53:11,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:53:18,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-11-21 01:53:18,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:53:18,449 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:53:18,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386191893] [2021-11-21 01:53:18,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386191893] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:18,450 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:18,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-21 01:53:18,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141837446] [2021-11-21 01:53:18,451 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:18,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 01:53:18,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:53:18,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 01:53:18,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=25, Unknown=4, NotChecked=0, Total=42 [2021-11-21 01:53:18,454 INFO L87 Difference]: Start difference. First operand 201 states and 281 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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) [2021-11-21 01:53:27,749 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:32,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:34,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:37,461 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:38,843 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:43,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:44,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:46,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:49,142 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:51,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:52,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:55,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:58,006 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:00,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:02,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:03,670 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:06,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:06,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:06,373 INFO L93 Difference]: Finished difference Result 594 states and 811 transitions. [2021-11-21 01:54:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:54:06,375 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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) Word has length 13 [2021-11-21 01:54:06,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:06,382 INFO L225 Difference]: With dead ends: 594 [2021-11-21 01:54:06,382 INFO L226 Difference]: Without dead ends: 589 [2021-11-21 01:54:06,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=22, Invalid=44, Unknown=6, NotChecked=0, Total=72 [2021-11-21 01:54:06,385 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 740 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 16 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 884 IncrementalHoareTripleChecker+Unchecked, 43.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:06,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [746 Valid, 1532 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 135 Invalid, 10 Unknown, 884 Unchecked, 43.3s Time] [2021-11-21 01:54:06,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2021-11-21 01:54:06,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 201. [2021-11-21 01:54:06,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.3979591836734695) internal successors, (274), 196 states have internal predecessors, (274), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:54:06,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 280 transitions. [2021-11-21 01:54:06,421 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 280 transitions. Word has length 13 [2021-11-21 01:54:06,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:06,422 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 280 transitions. [2021-11-21 01:54:06,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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) [2021-11-21 01:54:06,422 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 280 transitions. [2021-11-21 01:54:06,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 01:54:06,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:06,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:06,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:54:06,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:54:06,642 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:54:06,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:06,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1882535366, now seen corresponding path program 1 times [2021-11-21 01:54:06,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:54:06,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056177838] [2021-11-21 01:54:06,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:06,643 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:54:06,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:54:06,644 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:54:06,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 01:54:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:06,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 01:54:06,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:54:09,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:54:09,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:54:11,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:54:11,689 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:54:11,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056177838] [2021-11-21 01:54:11,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056177838] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:11,690 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:11,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-21 01:54:11,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917539050] [2021-11-21 01:54:11,691 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:11,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 01:54:11,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:54:11,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 01:54:11,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:54:11,693 INFO L87 Difference]: Start difference. First operand 201 states and 280 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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) [2021-11-21 01:54:11,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:11,706 INFO L93 Difference]: Finished difference Result 206 states and 284 transitions. [2021-11-21 01:54:11,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:54:11,707 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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) Word has length 15 [2021-11-21 01:54:11,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:11,709 INFO L225 Difference]: With dead ends: 206 [2021-11-21 01:54:11,709 INFO L226 Difference]: Without dead ends: 201 [2021-11-21 01:54:11,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:54:11,718 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 0 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:11,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1842 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 68 Unchecked, 0.0s Time] [2021-11-21 01:54:11,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-21 01:54:11,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-11-21 01:54:11,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.3928571428571428) internal successors, (273), 196 states have internal predecessors, (273), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:54:11,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 279 transitions. [2021-11-21 01:54:11,736 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 279 transitions. Word has length 15 [2021-11-21 01:54:11,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:11,737 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 279 transitions. [2021-11-21 01:54:11,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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) [2021-11-21 01:54:11,737 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 279 transitions. [2021-11-21 01:54:11,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 01:54:11,738 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:11,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:11,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:54:11,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:54:11,946 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:54:11,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:11,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1880688324, now seen corresponding path program 1 times [2021-11-21 01:54:11,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:54:11,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712843365] [2021-11-21 01:54:11,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:11,948 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:54:11,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:54:11,949 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:54:11,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 01:54:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:12,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:54:12,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:54:12,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:54:12,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:54:13,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:54:13,616 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:54:13,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712843365] [2021-11-21 01:54:13,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712843365] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:13,617 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:13,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-21 01:54:13,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082782638] [2021-11-21 01:54:13,617 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:13,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 01:54:13,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:54:13,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 01:54:13,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:54:13,619 INFO L87 Difference]: Start difference. First operand 201 states and 279 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-11-21 01:54:17,527 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:21,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:23,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:26,053 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:28,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:30,516 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:30,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:30,519 INFO L93 Difference]: Finished difference Result 206 states and 283 transitions. [2021-11-21 01:54:30,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:54:30,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) Word has length 15 [2021-11-21 01:54:30,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:30,575 INFO L225 Difference]: With dead ends: 206 [2021-11-21 01:54:30,576 INFO L226 Difference]: Without dead ends: 200 [2021-11-21 01:54:30,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:54:30,577 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 4 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:30,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 1087 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 6 Unknown, 0 Unchecked, 16.3s Time] [2021-11-21 01:54:30,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-11-21 01:54:30,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-11-21 01:54:30,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 195 states have (on average 1.3846153846153846) internal successors, (270), 195 states have internal predecessors, (270), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:54:30,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 276 transitions. [2021-11-21 01:54:30,605 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 276 transitions. Word has length 15 [2021-11-21 01:54:30,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:30,605 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 276 transitions. [2021-11-21 01:54:30,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-11-21 01:54:30,606 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 276 transitions. [2021-11-21 01:54:30,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 01:54:30,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:30,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:30,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:54:30,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:54:30,811 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:54:30,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:30,811 INFO L85 PathProgramCache]: Analyzing trace with hash -179689593, now seen corresponding path program 1 times [2021-11-21 01:54:30,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:54:30,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125840032] [2021-11-21 01:54:30,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:30,812 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:54:30,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:54:30,813 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:54:30,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-21 01:54:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:31,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 01:54:31,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:54:36,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:54:36,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:54:39,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:54:39,850 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:54:39,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125840032] [2021-11-21 01:54:39,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125840032] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:39,851 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:39,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-21 01:54:39,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631280664] [2021-11-21 01:54:39,851 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:39,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 01:54:39,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:54:39,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 01:54:39,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=100, Unknown=1, NotChecked=0, Total=132 [2021-11-21 01:54:39,852 INFO L87 Difference]: Start difference. First operand 200 states and 276 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 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) [2021-11-21 01:54:39,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:39,872 INFO L93 Difference]: Finished difference Result 273 states and 382 transitions. [2021-11-21 01:54:39,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:54:39,872 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 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) Word has length 18 [2021-11-21 01:54:39,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:39,874 INFO L225 Difference]: With dead ends: 273 [2021-11-21 01:54:39,875 INFO L226 Difference]: Without dead ends: 268 [2021-11-21 01:54:39,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=31, Invalid=100, Unknown=1, NotChecked=0, Total=132 [2021-11-21 01:54:39,876 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 93 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2535 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 73 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:39,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 2535 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 73 Unchecked, 0.0s Time] [2021-11-21 01:54:39,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-11-21 01:54:39,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 203. [2021-11-21 01:54:39,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 198 states have (on average 1.3888888888888888) internal successors, (275), 198 states have internal predecessors, (275), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:54:39,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 281 transitions. [2021-11-21 01:54:39,890 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 281 transitions. Word has length 18 [2021-11-21 01:54:39,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:39,890 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 281 transitions. [2021-11-21 01:54:39,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 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) [2021-11-21 01:54:39,891 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 281 transitions. [2021-11-21 01:54:39,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 01:54:39,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:39,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:39,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-21 01:54:40,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:54:40,109 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:54:40,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:40,110 INFO L85 PathProgramCache]: Analyzing trace with hash 191463746, now seen corresponding path program 1 times [2021-11-21 01:54:40,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:54:40,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036169090] [2021-11-21 01:54:40,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:40,111 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:54:40,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:54:40,112 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:54:40,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-21 01:54:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:40,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 01:54:40,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:54:43,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:54:43,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:54:45,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:54:45,522 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:54:45,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036169090] [2021-11-21 01:54:45,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036169090] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:45,523 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:45,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-21 01:54:45,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593451963] [2021-11-21 01:54:45,523 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:45,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 01:54:45,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:54:45,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 01:54:45,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:54:45,525 INFO L87 Difference]: Start difference. First operand 203 states and 281 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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) [2021-11-21 01:54:45,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:45,541 INFO L93 Difference]: Finished difference Result 219 states and 300 transitions. [2021-11-21 01:54:45,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:54:45,541 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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) Word has length 19 [2021-11-21 01:54:45,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:45,543 INFO L225 Difference]: With dead ends: 219 [2021-11-21 01:54:45,543 INFO L226 Difference]: Without dead ends: 214 [2021-11-21 01:54:45,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:54:45,545 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 204 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:45,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 1442 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 40 Unchecked, 0.0s Time] [2021-11-21 01:54:45,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-21 01:54:45,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 200. [2021-11-21 01:54:45,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 195 states have (on average 1.3794871794871795) internal successors, (269), 195 states have internal predecessors, (269), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:54:45,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 275 transitions. [2021-11-21 01:54:45,566 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 275 transitions. Word has length 19 [2021-11-21 01:54:45,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:45,566 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 275 transitions. [2021-11-21 01:54:45,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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) [2021-11-21 01:54:45,567 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 275 transitions. [2021-11-21 01:54:45,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 01:54:45,567 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:45,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:45,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-21 01:54:45,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:54:45,785 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:54:45,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:45,785 INFO L85 PathProgramCache]: Analyzing trace with hash 638784638, now seen corresponding path program 1 times [2021-11-21 01:54:45,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:54:45,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997901756] [2021-11-21 01:54:45,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:45,786 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:54:45,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:54:45,791 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:54:45,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-21 01:54:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:46,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 01:54:46,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:54:49,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:54:49,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:54:54,226 WARN L838 $PredicateComparison]: unable to prove that (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.mul roundNearestTiesToEven .cse0 .cse0)) (fp.mul c_currentRoundingMode |c_ULTIMATE.start___ieee754_pow_~x#1| |c_ULTIMATE.start___ieee754_pow_~x#1|)) is different from false [2021-11-21 01:55:41,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:55:41,362 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:55:41,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997901756] [2021-11-21 01:55:41,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997901756] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:55:41,362 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:55:41,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-21 01:55:41,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390843479] [2021-11-21 01:55:41,363 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:55:41,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 01:55:41,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:55:41,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 01:55:41,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=4, NotChecked=18, Total=132 [2021-11-21 01:55:41,364 INFO L87 Difference]: Start difference. First operand 200 states and 275 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 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) [2021-11-21 01:55:43,377 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:48,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:52,788 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:55,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:57,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:59,292 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:02,552 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:04,847 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:06,631 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:08,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:11,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:13,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:15,689 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:17,861 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:20,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:22,270 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:25,171 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:28,527 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:30,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:34,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:36,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:39,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:41,663 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:44,015 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:46,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:48,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:50,361 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:52,400 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:54,403 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:56,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:58,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:00,775 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:02,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:04,810 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:07,104 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:09,135 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:11,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:13,227 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:15,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:17,771 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:19,971 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:22,157 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:24,190 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:28,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:31,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:33,893 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:36,058 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:38,092 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:40,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:42,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:44,460 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:46,496 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:48,614 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:50,572 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:52,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:54,428 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:56,532 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:57:58,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:58:00,440 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:58:02,478 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:58:04,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:58:06,636 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:58:06,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:58:06,636 INFO L93 Difference]: Finished difference Result 224 states and 302 transitions. [2021-11-21 01:58:06,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:58:06,674 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 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) Word has length 19 [2021-11-21 01:58:06,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:58:06,676 INFO L225 Difference]: With dead ends: 224 [2021-11-21 01:58:06,676 INFO L226 Difference]: Without dead ends: 218 [2021-11-21 01:58:06,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=4, NotChecked=26, Total=240 [2021-11-21 01:58:06,678 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 621 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 50 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 135.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 50 IncrementalHoareTripleChecker+Unknown, 168 IncrementalHoareTripleChecker+Unchecked, 141.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:58:06,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [621 Valid, 1307 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 50 Unknown, 168 Unchecked, 141.4s Time] [2021-11-21 01:58:06,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-21 01:58:06,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 199. [2021-11-21 01:58:06,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.365979381443299) internal successors, (265), 194 states have internal predecessors, (265), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:58:06,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 271 transitions. [2021-11-21 01:58:06,693 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 271 transitions. Word has length 19 [2021-11-21 01:58:06,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:58:06,693 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 271 transitions. [2021-11-21 01:58:06,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 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) [2021-11-21 01:58:06,694 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 271 transitions. [2021-11-21 01:58:06,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-21 01:58:06,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:58:06,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:58:06,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-21 01:58:06,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:58:06,910 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:58:06,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:58:06,911 INFO L85 PathProgramCache]: Analyzing trace with hash -366285455, now seen corresponding path program 1 times [2021-11-21 01:58:06,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:58:06,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282838414] [2021-11-21 01:58:06,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:58:06,911 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:58:06,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:58:06,914 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:58:06,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-21 01:58:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:58:07,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 01:58:07,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:58:13,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:58:13,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:58:19,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:58:19,146 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:58:19,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282838414] [2021-11-21 01:58:19,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282838414] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:58:19,146 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:58:19,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-21 01:58:19,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794050682] [2021-11-21 01:58:19,146 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:58:19,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 01:58:19,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:58:19,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 01:58:19,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=100, Unknown=1, NotChecked=0, Total=132 [2021-11-21 01:58:19,148 INFO L87 Difference]: Start difference. First operand 199 states and 271 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 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) [2021-11-21 01:58:21,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:58:24,862 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:58:25,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:58:25,927 INFO L93 Difference]: Finished difference Result 497 states and 665 transitions. [2021-11-21 01:58:25,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-21 01:58:25,928 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 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) Word has length 21 [2021-11-21 01:58:25,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:58:25,932 INFO L225 Difference]: With dead ends: 497 [2021-11-21 01:58:25,932 INFO L226 Difference]: Without dead ends: 490 [2021-11-21 01:58:25,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=43, Invalid=138, Unknown=1, NotChecked=0, Total=182 [2021-11-21 01:58:25,934 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 463 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 3059 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:58:25,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [466 Valid, 3059 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 1 Unknown, 108 Unchecked, 5.3s Time] [2021-11-21 01:58:25,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2021-11-21 01:58:25,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 203. [2021-11-21 01:58:25,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 198 states have (on average 1.3686868686868687) internal successors, (271), 198 states have internal predecessors, (271), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:58:25,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 277 transitions. [2021-11-21 01:58:25,952 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 277 transitions. Word has length 21 [2021-11-21 01:58:25,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:58:25,953 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 277 transitions. [2021-11-21 01:58:25,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 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) [2021-11-21 01:58:25,953 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 277 transitions. [2021-11-21 01:58:25,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-21 01:58:25,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:58:25,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:58:25,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-21 01:58:26,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:58:26,174 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:58:26,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:58:26,175 INFO L85 PathProgramCache]: Analyzing trace with hash -29858040, now seen corresponding path program 1 times [2021-11-21 01:58:26,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:58:26,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685641237] [2021-11-21 01:58:26,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:58:26,175 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:58:26,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:58:26,176 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:58:26,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-21 01:58:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:58:26,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-21 01:58:26,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:58:27,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-11-21 01:58:29,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:58:29,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:58:36,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 38 [2021-11-21 01:58:39,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:58:39,489 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:58:39,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685641237] [2021-11-21 01:58:39,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685641237] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:58:39,489 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:58:39,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-21 01:58:39,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189108427] [2021-11-21 01:58:39,490 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:58:39,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 01:58:39,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:58:39,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 01:58:39,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=65, Unknown=2, NotChecked=0, Total=90 [2021-11-21 01:58:39,491 INFO L87 Difference]: Start difference. First operand 203 states and 277 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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) [2021-11-21 01:58:39,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:58:39,658 INFO L93 Difference]: Finished difference Result 203 states and 277 transitions. [2021-11-21 01:58:39,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:58:39,659 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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) Word has length 21 [2021-11-21 01:58:39,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:58:39,659 INFO L225 Difference]: With dead ends: 203 [2021-11-21 01:58:39,659 INFO L226 Difference]: Without dead ends: 0 [2021-11-21 01:58:39,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=23, Invalid=65, Unknown=2, NotChecked=0, Total=90 [2021-11-21 01:58:39,662 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:58:39,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 3 Unchecked, 0.0s Time] [2021-11-21 01:58:39,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-21 01:58:39,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-21 01:58:39,663 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) [2021-11-21 01:58:39,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-21 01:58:39,664 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-11-21 01:58:39,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:58:39,664 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-21 01:58:39,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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) [2021-11-21 01:58:39,665 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-21 01:58:39,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 01:58:39,668 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 01:58:39,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-21 01:58:39,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:58:39,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-21 01:58:42,149 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 36) no Hoare annotation was computed. [2021-11-21 01:58:42,149 INFO L858 garLoopResultBuilder]: For program point L31-1(lines 19 38) no Hoare annotation was computed. [2021-11-21 01:58:42,149 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 31 36) no Hoare annotation was computed. [2021-11-21 01:58:42,150 INFO L858 garLoopResultBuilder]: For program point copysign_doubleFINAL(lines 19 38) no Hoare annotation was computed. [2021-11-21 01:58:42,150 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-11-21 01:58:42,150 INFO L861 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: true [2021-11-21 01:58:42,150 INFO L858 garLoopResultBuilder]: For program point copysign_doubleEXIT(lines 19 38) no Hoare annotation was computed. [2021-11-21 01:58:42,150 INFO L861 garLoopResultBuilder]: At program point copysign_doubleENTRY(lines 19 38) the Hoare annotation is: true [2021-11-21 01:58:42,151 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-11-21 01:58:42,151 INFO L858 garLoopResultBuilder]: For program point L26-1(lines 19 38) no Hoare annotation was computed. [2021-11-21 01:58:42,151 INFO L858 garLoopResultBuilder]: For program point L531-1(lines 531 536) no Hoare annotation was computed. [2021-11-21 01:58:42,151 INFO L854 garLoopResultBuilder]: At program point L531-2(lines 531 536) the Hoare annotation is: false [2021-11-21 01:58:42,151 INFO L858 garLoopResultBuilder]: For program point L531-3(lines 531 536) no Hoare annotation was computed. [2021-11-21 01:58:42,152 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 367) no Hoare annotation was computed. [2021-11-21 01:58:42,152 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 169) no Hoare annotation was computed. [2021-11-21 01:58:42,152 INFO L858 garLoopResultBuilder]: For program point L168-2(lines 168 169) no Hoare annotation was computed. [2021-11-21 01:58:42,152 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 70) no Hoare annotation was computed. [2021-11-21 01:58:42,152 INFO L854 garLoopResultBuilder]: At program point L565(line 565) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res#1|) (= |ULTIMATE.start___ieee754_pow_#res#1| (_ NaN 11 53))) [2021-11-21 01:58:42,153 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 406) no Hoare annotation was computed. [2021-11-21 01:58:42,153 INFO L858 garLoopResultBuilder]: For program point L367(line 367) no Hoare annotation was computed. [2021-11-21 01:58:42,153 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 309) no Hoare annotation was computed. [2021-11-21 01:58:42,153 INFO L858 garLoopResultBuilder]: For program point L367-2(line 367) no Hoare annotation was computed. [2021-11-21 01:58:42,153 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 139) no Hoare annotation was computed. [2021-11-21 01:58:42,153 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 103 108) no Hoare annotation was computed. [2021-11-21 01:58:42,154 INFO L858 garLoopResultBuilder]: For program point L136-2(lines 136 139) no Hoare annotation was computed. [2021-11-21 01:58:42,154 INFO L854 garLoopResultBuilder]: At program point L70(line 70) the Hoare annotation is: false [2021-11-21 01:58:42,154 INFO L854 garLoopResultBuilder]: At program point L103-2(lines 103 108) the Hoare annotation is: false [2021-11-21 01:58:42,154 INFO L858 garLoopResultBuilder]: For program point L70-1(line 70) no Hoare annotation was computed. [2021-11-21 01:58:42,154 INFO L858 garLoopResultBuilder]: For program point L103-3(lines 97 205) no Hoare annotation was computed. [2021-11-21 01:58:42,154 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 501) no Hoare annotation was computed. [2021-11-21 01:58:42,154 INFO L858 garLoopResultBuilder]: For program point L467-1(lines 467 472) no Hoare annotation was computed. [2021-11-21 01:58:42,154 INFO L854 garLoopResultBuilder]: At program point L467-2(lines 467 472) the Hoare annotation is: false [2021-11-21 01:58:42,155 INFO L858 garLoopResultBuilder]: For program point L467-3(lines 467 472) no Hoare annotation was computed. [2021-11-21 01:58:42,155 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 79) no Hoare annotation was computed. [2021-11-21 01:58:42,155 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 304) no Hoare annotation was computed. [2021-11-21 01:58:42,155 INFO L858 garLoopResultBuilder]: For program point L270-1(lines 270 275) no Hoare annotation was computed. [2021-11-21 01:58:42,155 INFO L854 garLoopResultBuilder]: At program point L270-2(lines 270 275) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start_main_~x~0#1|) (not (fp.eq |ULTIMATE.start___ieee754_pow_~y#1| (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_pow_~x#1| (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))))) [2021-11-21 01:58:42,155 INFO L854 garLoopResultBuilder]: At program point L204(lines 97 205) the Hoare annotation is: false [2021-11-21 01:58:42,155 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 72 77) no Hoare annotation was computed. [2021-11-21 01:58:42,155 INFO L854 garLoopResultBuilder]: At program point L72-2(lines 72 77) the Hoare annotation is: false [2021-11-21 01:58:42,155 INFO L858 garLoopResultBuilder]: For program point L72-3(lines 72 77) no Hoare annotation was computed. [2021-11-21 01:58:42,155 INFO L858 garLoopResultBuilder]: For program point L503(lines 503 510) no Hoare annotation was computed. [2021-11-21 01:58:42,155 INFO L858 garLoopResultBuilder]: For program point L503-2(lines 496 510) no Hoare annotation was computed. [2021-11-21 01:58:42,156 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 351) no Hoare annotation was computed. [2021-11-21 01:58:42,156 INFO L858 garLoopResultBuilder]: For program point L305(lines 305 309) no Hoare annotation was computed. [2021-11-21 01:58:42,156 INFO L858 garLoopResultBuilder]: For program point L338-2(lines 263 562) no Hoare annotation was computed. [2021-11-21 01:58:42,156 INFO L858 garLoopResultBuilder]: For program point L504(lines 504 509) no Hoare annotation was computed. [2021-11-21 01:58:42,156 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 350) no Hoare annotation was computed. [2021-11-21 01:58:42,157 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 308) no Hoare annotation was computed. [2021-11-21 01:58:42,157 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 208 212) no Hoare annotation was computed. [2021-11-21 01:58:42,157 INFO L854 garLoopResultBuilder]: At program point L208-2(lines 208 212) the Hoare annotation is: false [2021-11-21 01:58:42,157 INFO L858 garLoopResultBuilder]: For program point L407(lines 407 412) no Hoare annotation was computed. [2021-11-21 01:58:42,157 INFO L858 garLoopResultBuilder]: For program point L407-1(lines 381 474) no Hoare annotation was computed. [2021-11-21 01:58:42,158 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 342) no Hoare annotation was computed. [2021-11-21 01:58:42,158 INFO L858 garLoopResultBuilder]: For program point L374-1(lines 374 379) no Hoare annotation was computed. [2021-11-21 01:58:42,158 INFO L858 garLoopResultBuilder]: For program point L407-2(lines 407 412) no Hoare annotation was computed. [2021-11-21 01:58:42,158 INFO L854 garLoopResultBuilder]: At program point L374-2(lines 374 379) the Hoare annotation is: false [2021-11-21 01:58:42,158 INFO L858 garLoopResultBuilder]: For program point L341-2(lines 339 350) no Hoare annotation was computed. [2021-11-21 01:58:42,158 INFO L858 garLoopResultBuilder]: For program point L374-3(lines 374 379) no Hoare annotation was computed. [2021-11-21 01:58:42,159 INFO L858 garLoopResultBuilder]: For program point L507(lines 507 508) no Hoare annotation was computed. [2021-11-21 01:58:42,159 INFO L858 garLoopResultBuilder]: For program point L276(lines 276 281) no Hoare annotation was computed. [2021-11-21 01:58:42,159 INFO L858 garLoopResultBuilder]: For program point L276-1(lines 263 562) no Hoare annotation was computed. [2021-11-21 01:58:42,159 INFO L858 garLoopResultBuilder]: For program point L276-2(lines 276 281) no Hoare annotation was computed. [2021-11-21 01:58:42,159 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 348) no Hoare annotation was computed. [2021-11-21 01:58:42,160 INFO L858 garLoopResultBuilder]: For program point L178(lines 178 192) no Hoare annotation was computed. [2021-11-21 01:58:42,160 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 46 51) no Hoare annotation was computed. [2021-11-21 01:58:42,160 INFO L854 garLoopResultBuilder]: At program point L46-2(lines 46 51) the Hoare annotation is: false [2021-11-21 01:58:42,160 INFO L858 garLoopResultBuilder]: For program point L46-3(lines 46 51) no Hoare annotation was computed. [2021-11-21 01:58:42,160 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 443 448) no Hoare annotation was computed. [2021-11-21 01:58:42,160 INFO L854 garLoopResultBuilder]: At program point L443-2(lines 443 448) the Hoare annotation is: false [2021-11-21 01:58:42,161 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 347) no Hoare annotation was computed. [2021-11-21 01:58:42,161 INFO L858 garLoopResultBuilder]: For program point L443-3(lines 443 448) no Hoare annotation was computed. [2021-11-21 01:58:42,161 INFO L858 garLoopResultBuilder]: For program point L80(lines 80 85) no Hoare annotation was computed. [2021-11-21 01:58:42,161 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 478) no Hoare annotation was computed. [2021-11-21 01:58:42,161 INFO L858 garLoopResultBuilder]: For program point L477-2(lines 477 478) no Hoare annotation was computed. [2021-11-21 01:58:42,162 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 218) no Hoare annotation was computed. [2021-11-21 01:58:42,162 INFO L858 garLoopResultBuilder]: For program point L180(lines 180 191) no Hoare annotation was computed. [2021-11-21 01:58:42,162 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 206 220) no Hoare annotation was computed. [2021-11-21 01:58:42,162 INFO L858 garLoopResultBuilder]: For program point L213-2(lines 213 218) no Hoare annotation was computed. [2021-11-21 01:58:42,162 INFO L858 garLoopResultBuilder]: For program point L114(lines 114 119) no Hoare annotation was computed. [2021-11-21 01:58:42,162 INFO L854 garLoopResultBuilder]: At program point L147-2(lines 147 157) the Hoare annotation is: false [2021-11-21 01:58:42,162 INFO L858 garLoopResultBuilder]: For program point L81(lines 81 84) no Hoare annotation was computed. [2021-11-21 01:58:42,162 INFO L858 garLoopResultBuilder]: For program point L114-2(lines 114 119) no Hoare annotation was computed. [2021-11-21 01:58:42,162 INFO L858 garLoopResultBuilder]: For program point L147-3(lines 147 157) no Hoare annotation was computed. [2021-11-21 01:58:42,163 INFO L858 garLoopResultBuilder]: For program point L346(lines 346 347) no Hoare annotation was computed. [2021-11-21 01:58:42,163 INFO L858 garLoopResultBuilder]: For program point L313(lines 313 334) no Hoare annotation was computed. [2021-11-21 01:58:42,163 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 118) no Hoare annotation was computed. [2021-11-21 01:58:42,163 INFO L854 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: false [2021-11-21 01:58:42,163 INFO L858 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2021-11-21 01:58:42,163 INFO L858 garLoopResultBuilder]: For program point L314(lines 314 321) no Hoare annotation was computed. [2021-11-21 01:58:42,163 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 190) no Hoare annotation was computed. [2021-11-21 01:58:42,163 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 153) no Hoare annotation was computed. [2021-11-21 01:58:42,163 INFO L858 garLoopResultBuilder]: For program point L149-2(lines 149 153) no Hoare annotation was computed. [2021-11-21 01:58:42,163 INFO L858 garLoopResultBuilder]: For program point L579(lines 579 588) no Hoare annotation was computed. [2021-11-21 01:58:42,163 INFO L858 garLoopResultBuilder]: For program point L546-1(lines 546 550) no Hoare annotation was computed. [2021-11-21 01:58:42,164 INFO L858 garLoopResultBuilder]: For program point L579-2(lines 579 588) no Hoare annotation was computed. [2021-11-21 01:58:42,164 INFO L854 garLoopResultBuilder]: At program point L546-2(lines 546 550) the Hoare annotation is: false [2021-11-21 01:58:42,164 INFO L858 garLoopResultBuilder]: For program point L546-3(lines 546 550) no Hoare annotation was computed. [2021-11-21 01:58:42,164 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 320) no Hoare annotation was computed. [2021-11-21 01:58:42,164 INFO L858 garLoopResultBuilder]: For program point L117(lines 117 118) no Hoare annotation was computed. [2021-11-21 01:58:42,164 INFO L854 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: false [2021-11-21 01:58:42,164 INFO L858 garLoopResultBuilder]: For program point L84-1(line 84) no Hoare annotation was computed. [2021-11-21 01:58:42,164 INFO L858 garLoopResultBuilder]: For program point L481-1(lines 481 486) no Hoare annotation was computed. [2021-11-21 01:58:42,164 INFO L854 garLoopResultBuilder]: At program point L481-2(lines 481 486) the Hoare annotation is: false [2021-11-21 01:58:42,165 INFO L858 garLoopResultBuilder]: For program point L481-3(lines 481 486) no Hoare annotation was computed. [2021-11-21 01:58:42,165 INFO L858 garLoopResultBuilder]: For program point L515(lines 515 529) no Hoare annotation was computed. [2021-11-21 01:58:42,165 INFO L858 garLoopResultBuilder]: For program point L515-2(lines 515 529) no Hoare annotation was computed. [2021-11-21 01:58:42,165 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-21 01:58:42,165 INFO L858 garLoopResultBuilder]: For program point L317(lines 317 320) no Hoare annotation was computed. [2021-11-21 01:58:42,165 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 190) no Hoare annotation was computed. [2021-11-21 01:58:42,166 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 65) no Hoare annotation was computed. [2021-11-21 01:58:42,166 INFO L858 garLoopResultBuilder]: For program point L53-2(lines 44 94) no Hoare annotation was computed. [2021-11-21 01:58:42,166 INFO L858 garLoopResultBuilder]: For program point L318(line 318) no Hoare annotation was computed. [2021-11-21 01:58:42,166 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 286) no Hoare annotation was computed. [2021-11-21 01:58:42,166 INFO L858 garLoopResultBuilder]: For program point L318-2(line 318) no Hoare annotation was computed. [2021-11-21 01:58:42,167 INFO L854 garLoopResultBuilder]: At program point L219(lines 206 220) the Hoare annotation is: false [2021-11-21 01:58:42,167 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 187) no Hoare annotation was computed. [2021-11-21 01:58:42,167 INFO L858 garLoopResultBuilder]: For program point L186-2(lines 186 187) no Hoare annotation was computed. [2021-11-21 01:58:42,167 INFO L858 garLoopResultBuilder]: For program point L54(lines 54 55) no Hoare annotation was computed. [2021-11-21 01:58:42,167 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 87 92) no Hoare annotation was computed. [2021-11-21 01:58:42,167 INFO L854 garLoopResultBuilder]: At program point L87-2(lines 87 92) the Hoare annotation is: false [2021-11-21 01:58:42,168 INFO L858 garLoopResultBuilder]: For program point L87-3(lines 87 92) no Hoare annotation was computed. [2021-11-21 01:58:42,168 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 393) no Hoare annotation was computed. [2021-11-21 01:58:42,168 INFO L858 garLoopResultBuilder]: For program point L418-1(lines 418 423) no Hoare annotation was computed. [2021-11-21 01:58:42,168 INFO L858 garLoopResultBuilder]: For program point L385-1(lines 385 393) no Hoare annotation was computed. [2021-11-21 01:58:42,168 INFO L854 garLoopResultBuilder]: At program point L418-2(lines 418 423) the Hoare annotation is: false [2021-11-21 01:58:42,168 INFO L858 garLoopResultBuilder]: For program point L418-3(lines 418 423) no Hoare annotation was computed. [2021-11-21 01:58:42,169 INFO L858 garLoopResultBuilder]: For program point L584(lines 584 587) no Hoare annotation was computed. [2021-11-21 01:58:42,169 INFO L858 garLoopResultBuilder]: For program point L320(line 320) no Hoare annotation was computed. [2021-11-21 01:58:42,169 INFO L858 garLoopResultBuilder]: For program point L320-2(line 320) no Hoare annotation was computed. [2021-11-21 01:58:42,169 INFO L858 garLoopResultBuilder]: For program point L122(lines 122 133) no Hoare annotation was computed. [2021-11-21 01:58:42,169 INFO L858 garLoopResultBuilder]: For program point L122-2(lines 122 133) no Hoare annotation was computed. [2021-11-21 01:58:42,169 INFO L858 garLoopResultBuilder]: For program point L585(line 585) no Hoare annotation was computed. [2021-11-21 01:58:42,170 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 560) no Hoare annotation was computed. [2021-11-21 01:58:42,170 INFO L858 garLoopResultBuilder]: For program point L519-1(lines 519 524) no Hoare annotation was computed. [2021-11-21 01:58:42,170 INFO L854 garLoopResultBuilder]: At program point L519-2(lines 519 524) the Hoare annotation is: false [2021-11-21 01:58:42,170 INFO L858 garLoopResultBuilder]: For program point L519-3(lines 519 524) no Hoare annotation was computed. [2021-11-21 01:58:42,170 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 294) no Hoare annotation was computed. [2021-11-21 01:58:42,171 INFO L854 garLoopResultBuilder]: At program point L123-2(lines 123 127) the Hoare annotation is: false [2021-11-21 01:58:42,171 INFO L858 garLoopResultBuilder]: For program point L123-3(lines 123 127) no Hoare annotation was computed. [2021-11-21 01:58:42,171 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2021-11-21 01:58:42,171 INFO L854 garLoopResultBuilder]: At program point L57-2(lines 57 61) the Hoare annotation is: false [2021-11-21 01:58:42,171 INFO L858 garLoopResultBuilder]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2021-11-21 01:58:42,172 INFO L858 garLoopResultBuilder]: For program point L388-1(lines 388 392) no Hoare annotation was computed. [2021-11-21 01:58:42,172 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 327) no Hoare annotation was computed. [2021-11-21 01:58:42,172 INFO L854 garLoopResultBuilder]: At program point L388-2(lines 388 392) the Hoare annotation is: false [2021-11-21 01:58:42,172 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-21 01:58:42,172 INFO L858 garLoopResultBuilder]: For program point L455-1(lines 455 460) no Hoare annotation was computed. [2021-11-21 01:58:42,172 INFO L854 garLoopResultBuilder]: At program point L455-2(lines 455 460) the Hoare annotation is: false [2021-11-21 01:58:42,173 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 474) no Hoare annotation was computed. [2021-11-21 01:58:42,173 INFO L858 garLoopResultBuilder]: For program point L455-3(lines 455 460) no Hoare annotation was computed. [2021-11-21 01:58:42,173 INFO L858 garLoopResultBuilder]: For program point L323(lines 323 326) no Hoare annotation was computed. [2021-11-21 01:58:42,173 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 293) no Hoare annotation was computed. [2021-11-21 01:58:42,173 INFO L858 garLoopResultBuilder]: For program point L356-2(lines 356 474) no Hoare annotation was computed. [2021-11-21 01:58:42,173 INFO L858 garLoopResultBuilder]: For program point L555-1(lines 555 560) no Hoare annotation was computed. [2021-11-21 01:58:42,174 INFO L854 garLoopResultBuilder]: At program point L555-2(lines 555 560) the Hoare annotation is: false [2021-11-21 01:58:42,174 INFO L858 garLoopResultBuilder]: For program point L555-3(lines 552 560) no Hoare annotation was computed. [2021-11-21 01:58:42,174 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 362) no Hoare annotation was computed. [2021-11-21 01:58:42,174 INFO L858 garLoopResultBuilder]: For program point L357-2(lines 356 381) no Hoare annotation was computed. [2021-11-21 01:58:42,174 INFO L854 garLoopResultBuilder]: At program point L93(lines 44 94) the Hoare annotation is: false [2021-11-21 01:58:42,174 INFO L858 garLoopResultBuilder]: For program point L490-1(lines 490 495) no Hoare annotation was computed. [2021-11-21 01:58:42,175 INFO L854 garLoopResultBuilder]: At program point L490-2(lines 490 495) the Hoare annotation is: false [2021-11-21 01:58:42,175 INFO L858 garLoopResultBuilder]: For program point L490-3(lines 263 562) no Hoare annotation was computed. [2021-11-21 01:58:42,175 INFO L858 garLoopResultBuilder]: For program point L358(lines 358 359) no Hoare annotation was computed. [2021-11-21 01:58:42,175 INFO L854 garLoopResultBuilder]: At program point L160-2(lines 160 176) the Hoare annotation is: false [2021-11-21 01:58:42,175 INFO L858 garLoopResultBuilder]: For program point L160-3(lines 97 205) no Hoare annotation was computed. [2021-11-21 01:58:42,175 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-21 01:58:42,176 INFO L861 garLoopResultBuilder]: At program point L590(lines 567 591) the Hoare annotation is: true [2021-11-21 01:58:42,176 INFO L858 garLoopResultBuilder]: For program point L359(line 359) no Hoare annotation was computed. [2021-11-21 01:58:42,176 INFO L858 garLoopResultBuilder]: For program point L359-2(line 359) no Hoare annotation was computed. [2021-11-21 01:58:42,176 INFO L858 garLoopResultBuilder]: For program point L128-2(lines 128 129) no Hoare annotation was computed. [2021-11-21 01:58:42,176 INFO L854 garLoopResultBuilder]: At program point L128-3(lines 128 129) the Hoare annotation is: false [2021-11-21 01:58:42,176 INFO L858 garLoopResultBuilder]: For program point L128-4(lines 128 129) no Hoare annotation was computed. [2021-11-21 01:58:42,177 INFO L858 garLoopResultBuilder]: For program point L426-1(lines 426 431) no Hoare annotation was computed. [2021-11-21 01:58:42,177 INFO L858 garLoopResultBuilder]: For program point L360(lines 360 361) no Hoare annotation was computed. [2021-11-21 01:58:42,177 INFO L854 garLoopResultBuilder]: At program point L426-2(lines 426 431) the Hoare annotation is: false [2021-11-21 01:58:42,177 INFO L858 garLoopResultBuilder]: For program point L426-3(lines 426 431) no Hoare annotation was computed. [2021-11-21 01:58:42,177 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 196) no Hoare annotation was computed. [2021-11-21 01:58:42,177 INFO L858 garLoopResultBuilder]: For program point L195-2(lines 195 196) no Hoare annotation was computed. [2021-11-21 01:58:42,178 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 64) no Hoare annotation was computed. [2021-11-21 01:58:42,178 INFO L858 garLoopResultBuilder]: For program point L526(lines 526 527) no Hoare annotation was computed. [2021-11-21 01:58:42,178 INFO L858 garLoopResultBuilder]: For program point L526-2(lines 526 527) no Hoare annotation was computed. [2021-11-21 01:58:42,178 INFO L858 garLoopResultBuilder]: For program point L361(line 361) no Hoare annotation was computed. [2021-11-21 01:58:42,178 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 329) no Hoare annotation was computed. [2021-11-21 01:58:42,178 INFO L858 garLoopResultBuilder]: For program point L361-2(line 361) no Hoare annotation was computed. [2021-11-21 01:58:42,178 INFO L858 garLoopResultBuilder]: For program point L163(lines 163 172) no Hoare annotation was computed. [2021-11-21 01:58:42,179 INFO L858 garLoopResultBuilder]: For program point L163-2(lines 163 172) no Hoare annotation was computed. [2021-11-21 01:58:42,179 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 311) no Hoare annotation was computed. [2021-11-21 01:58:42,179 INFO L858 garLoopResultBuilder]: For program point L296-1(lines 263 562) no Hoare annotation was computed. [2021-11-21 01:58:42,179 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-21 01:58:42,179 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 585) no Hoare annotation was computed. [2021-11-21 01:58:42,179 INFO L854 garLoopResultBuilder]: At program point L561(lines 263 562) the Hoare annotation is: (= |ULTIMATE.start___ieee754_pow_#res#1| (_ NaN 11 53)) [2021-11-21 01:58:42,180 INFO L858 garLoopResultBuilder]: For program point L330(lines 330 333) no Hoare annotation was computed. [2021-11-21 01:58:42,180 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 310) no Hoare annotation was computed. [2021-11-21 01:58:42,180 INFO L858 garLoopResultBuilder]: For program point L165(lines 165 166) no Hoare annotation was computed. [2021-11-21 01:58:42,180 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 198 203) no Hoare annotation was computed. [2021-11-21 01:58:42,180 INFO L854 garLoopResultBuilder]: At program point L198-2(lines 198 203) the Hoare annotation is: false [2021-11-21 01:58:42,180 INFO L858 garLoopResultBuilder]: For program point L165-2(lines 165 166) no Hoare annotation was computed. [2021-11-21 01:58:42,181 INFO L858 garLoopResultBuilder]: For program point L198-3(lines 198 203) no Hoare annotation was computed. [2021-11-21 01:58:42,181 INFO L858 garLoopResultBuilder]: For program point L331(lines 331 332) no Hoare annotation was computed. [2021-11-21 01:58:42,181 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 502) no Hoare annotation was computed. [2021-11-21 01:58:42,181 INFO L858 garLoopResultBuilder]: For program point L398(lines 398 406) no Hoare annotation was computed. [2021-11-21 01:58:42,181 INFO L858 garLoopResultBuilder]: For program point L365(line 365) no Hoare annotation was computed. [2021-11-21 01:58:42,181 INFO L858 garLoopResultBuilder]: For program point L299(lines 299 310) no Hoare annotation was computed. [2021-11-21 01:58:42,181 INFO L858 garLoopResultBuilder]: For program point L365-2(line 365) no Hoare annotation was computed. [2021-11-21 01:58:42,184 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:58:42,186 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:58:42,197 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:58:42,198 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:58:42,199 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:58:42,199 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:58:42,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:58:42 BoogieIcfgContainer [2021-11-21 01:58:42,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:58:42,201 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:58:42,201 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:58:42,201 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:58:42,202 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:53:04" (3/4) ... [2021-11-21 01:58:42,205 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 01:58:42,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_double [2021-11-21 01:58:42,227 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-21 01:58:42,227 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-21 01:58:42,228 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-21 01:58:42,228 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 01:58:42,251 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && !~fp.eq~DOUBLE(y, ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2021-11-21 01:58:42,327 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 01:58:42,327 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:58:42,328 INFO L158 Benchmark]: Toolchain (without parser) took 390274.25ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 53.0MB in the beginning and 60.6MB in the end (delta: -7.7MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2021-11-21 01:58:42,328 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 71.3MB. Free memory was 53.1MB in the beginning and 53.0MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:58:42,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 677.61ms. Allocated memory is still 71.3MB. Free memory was 52.8MB in the beginning and 41.4MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 01:58:42,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.65ms. Allocated memory is still 71.3MB. Free memory was 41.4MB in the beginning and 37.0MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-21 01:58:42,330 INFO L158 Benchmark]: Boogie Preprocessor took 96.36ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 37.0MB in the beginning and 68.8MB in the end (delta: -31.8MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-11-21 01:58:42,330 INFO L158 Benchmark]: RCFGBuilder took 51400.64ms. Allocated memory is still 88.1MB. Free memory was 68.8MB in the beginning and 49.5MB in the end (delta: 19.2MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2021-11-21 01:58:42,330 INFO L158 Benchmark]: TraceAbstraction took 337881.37ms. Allocated memory is still 88.1MB. Free memory was 49.0MB in the beginning and 40.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2021-11-21 01:58:42,331 INFO L158 Benchmark]: Witness Printer took 126.42ms. Allocated memory is still 88.1MB. Free memory was 40.3MB in the beginning and 60.6MB in the end (delta: -20.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-21 01:58:42,333 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 71.3MB. Free memory was 53.1MB in the beginning and 53.0MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 677.61ms. Allocated memory is still 71.3MB. Free memory was 52.8MB in the beginning and 41.4MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.65ms. Allocated memory is still 71.3MB. Free memory was 41.4MB in the beginning and 37.0MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 96.36ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 37.0MB in the beginning and 68.8MB in the end (delta: -31.8MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * RCFGBuilder took 51400.64ms. Allocated memory is still 88.1MB. Free memory was 68.8MB in the beginning and 49.5MB in the end (delta: 19.2MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * TraceAbstraction took 337881.37ms. Allocated memory is still 88.1MB. Free memory was 49.0MB in the beginning and 40.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Witness Printer took 126.42ms. Allocated memory is still 88.1MB. Free memory was 40.3MB in the beginning and 60.6MB in the end (delta: -20.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * 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: 585]: 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, 205 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 337.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 217.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 67 mSolverCounterUnknown, 2134 SdHoareTripleChecker+Valid, 206.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2125 mSDsluCounter, 13120 SdHoareTripleChecker+Invalid, 198.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1344 IncrementalHoareTripleChecker+Unchecked, 10786 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 284 IncrementalHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 2334 mSDtfsCounter, 284 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 299 GetRequests, 220 SyntacticMatches, 5 SemanticMatches, 74 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 66.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=205occurred in iteration=0, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 773 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 46 PreInvPairs, 52 NumberOfFragments, 64 HoareAnnotationTreeSize, 46 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 36 FomulaSimplificationsInter, 97 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 113.0s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 286 ConstructedInterpolants, 96 QuantifiedInterpolants, 2343 SizeOfPredicates, 70 NumberOfNonLiveVariables, 1084 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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: 44]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 263]: Loop Invariant Derived loop invariant: \result == ~NaN~LONGDOUBLE() - InvariantResult [Line: 467]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 481]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 490]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 531]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 160]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 388]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 374]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 565]: Loop Invariant Derived loop invariant: 1bv32 == \result && \result == ~NaN~LONGDOUBLE() - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 519]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 206]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 270]: Loop Invariant [2021-11-21 01:58:42,345 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:58:42,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:58:42,346 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:58:42,346 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && !~fp.eq~DOUBLE(y, ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-21 01:58:42,574 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-21 01:58:42,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34982d55-ed08-4e49-9684-d63b98911b9c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE