./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i --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_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/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_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/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_37520830-7fb0-4f2f-92a6-f2c37b44f750/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 725f145f29173a8eb9d341d6c4f743ec9526dd2a9ceaf2d591ceb6d76764d49f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:27:42,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:27:42,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:27:42,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:27:42,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:27:42,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:27:42,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:27:42,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:27:42,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:27:42,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:27:42,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:27:42,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:27:42,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:27:42,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:27:42,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:27:42,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:27:42,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:27:42,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:27:42,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:27:42,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:27:42,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:27:42,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:27:42,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:27:42,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:27:42,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:27:42,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:27:42,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:27:42,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:27:42,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:27:42,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:27:42,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:27:42,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:27:42,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:27:42,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:27:42,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:27:42,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:27:42,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:27:42,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:27:42,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:27:42,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:27:42,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:27:42,499 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:27:42,545 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:27:42,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:27:42,546 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:27:42,546 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:27:42,547 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:27:42,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:27:42,548 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:27:42,548 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:27:42,548 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:27:42,549 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:27:42,550 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:27:42,550 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:27:42,550 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:27:42,550 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:27:42,551 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:27:42,551 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:27:42,551 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:27:42,551 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:27:42,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:27:42,553 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:27:42,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:27:42,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:27:42,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:27:42,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:27:42,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:27:42,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:27:42,556 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:27:42,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:27:42,556 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:27:42,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:27:42,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:27:42,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:27:42,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:27:42,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:27:42,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:27:42,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:27:42,558 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:27:42,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:27:42,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:27:42,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:27:42,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:27:42,559 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_37520830-7fb0-4f2f-92a6-f2c37b44f750/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 725f145f29173a8eb9d341d6c4f743ec9526dd2a9ceaf2d591ceb6d76764d49f [2021-11-21 01:27:42,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:27:42,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:27:42,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:27:42,878 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:27:42,878 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:27:42,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i [2021-11-21 01:27:42,953 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/data/96407dde1/d24ea786e9b642d0b36a91cf24b2e207/FLAG8e47209a8 [2021-11-21 01:27:43,434 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:27:43,434 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i [2021-11-21 01:27:43,442 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/data/96407dde1/d24ea786e9b642d0b36a91cf24b2e207/FLAG8e47209a8 [2021-11-21 01:27:43,798 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/data/96407dde1/d24ea786e9b642d0b36a91cf24b2e207 [2021-11-21 01:27:43,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:27:43,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:27:43,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:27:43,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:27:43,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:27:43,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:27:43" (1/1) ... [2021-11-21 01:27:43,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@691c2d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:43, skipping insertion in model container [2021-11-21 01:27:43,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:27:43" (1/1) ... [2021-11-21 01:27:43,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:27:43,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:27:44,014 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_37520830-7fb0-4f2f-92a6-f2c37b44f750/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i[948,961] [2021-11-21 01:27:44,028 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1792) 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.visit(CHandler.java:730) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1385) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java: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 01:27:44,034 INFO L158 Benchmark]: Toolchain (without parser) took 228.60ms. Allocated memory is still 136.3MB. Free memory was 103.3MB in the beginning and 113.2MB in the end (delta: -9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 01:27:44,039 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 78.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:27:44,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.78ms. Allocated memory is still 136.3MB. Free memory was 102.9MB in the beginning and 113.2MB in the end (delta: -10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 01:27:44,045 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 78.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.78ms. Allocated memory is still 136.3MB. Free memory was 102.9MB in the beginning and 113.2MB in the end (delta: -10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) 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_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/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_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/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_37520830-7fb0-4f2f-92a6-f2c37b44f750/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 725f145f29173a8eb9d341d6c4f743ec9526dd2a9ceaf2d591ceb6d76764d49f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:27:46,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:27:46,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:27:46,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:27:46,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:27:46,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:27:46,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:27:46,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:27:46,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:27:46,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:27:46,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:27:46,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:27:46,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:27:46,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:27:46,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:27:46,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:27:46,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:27:46,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:27:46,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:27:46,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:27:46,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:27:46,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:27:46,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:27:46,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:27:46,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:27:46,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:27:46,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:27:46,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:27:46,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:27:46,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:27:46,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:27:46,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:27:46,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:27:46,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:27:46,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:27:46,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:27:46,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:27:46,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:27:46,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:27:46,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:27:46,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:27:46,534 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-21 01:27:46,582 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:27:46,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:27:46,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:27:46,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:27:46,584 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:27:46,584 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:27:46,584 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:27:46,585 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:27:46,585 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:27:46,585 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:27:46,586 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:27:46,586 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:27:46,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:27:46,588 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:27:46,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:27:46,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:27:46,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:27:46,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:27:46,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:27:46,590 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 01:27:46,590 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 01:27:46,590 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:27:46,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:27:46,590 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:27:46,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:27:46,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:27:46,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 01:27:46,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:27:46,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:27:46,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:27:46,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:27:46,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:27:46,593 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 01:27:46,593 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 01:27:46,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:27:46,594 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:27:46,594 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:27:46,594 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_37520830-7fb0-4f2f-92a6-f2c37b44f750/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 725f145f29173a8eb9d341d6c4f743ec9526dd2a9ceaf2d591ceb6d76764d49f [2021-11-21 01:27:46,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:27:46,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:27:46,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:27:46,964 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:27:46,964 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:27:46,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i [2021-11-21 01:27:47,045 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/data/918e5344e/21d9268d89fd49ffb770d71537ba3f3f/FLAG8969baabf [2021-11-21 01:27:47,560 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:27:47,560 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i [2021-11-21 01:27:47,571 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/data/918e5344e/21d9268d89fd49ffb770d71537ba3f3f/FLAG8969baabf [2021-11-21 01:27:47,888 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/data/918e5344e/21d9268d89fd49ffb770d71537ba3f3f [2021-11-21 01:27:47,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:27:47,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:27:47,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:27:47,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:27:47,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:27:47,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:27:47" (1/1) ... [2021-11-21 01:27:47,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4abc4d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:47, skipping insertion in model container [2021-11-21 01:27:47,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:27:47" (1/1) ... [2021-11-21 01:27:47,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:27:47,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:27:48,080 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_37520830-7fb0-4f2f-92a6-f2c37b44f750/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i[948,961] [2021-11-21 01:27:48,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:27:48,165 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:27:48,195 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_37520830-7fb0-4f2f-92a6-f2c37b44f750/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i[948,961] [2021-11-21 01:27:48,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:27:48,229 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:27:48,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:48 WrapperNode [2021-11-21 01:27:48,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:27:48,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:27:48,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:27:48,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:27:48,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:48" (1/1) ... [2021-11-21 01:27:48,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:48" (1/1) ... [2021-11-21 01:27:48,278 INFO L137 Inliner]: procedures = 18, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2021-11-21 01:27:48,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:27:48,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:27:48,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:27:48,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:27:48,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:48" (1/1) ... [2021-11-21 01:27:48,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:48" (1/1) ... [2021-11-21 01:27:48,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:48" (1/1) ... [2021-11-21 01:27:48,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:48" (1/1) ... [2021-11-21 01:27:48,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:48" (1/1) ... [2021-11-21 01:27:48,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:48" (1/1) ... [2021-11-21 01:27:48,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:48" (1/1) ... [2021-11-21 01:27:48,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:27:48,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:27:48,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:27:48,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:27:48,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:48" (1/1) ... [2021-11-21 01:27:48,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:27:48,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:27:48,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:27:48,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:27:48,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:27:48,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 01:27:48,407 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-21 01:27:48,410 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-21 01:27:48,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:27:48,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:27:48,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:27:48,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:27:48,478 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:27:48,479 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:27:51,375 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:27:51,383 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:27:51,383 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 01:27:51,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:27:51 BoogieIcfgContainer [2021-11-21 01:27:51,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:27:51,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:27:51,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:27:51,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:27:51,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:27:47" (1/3) ... [2021-11-21 01:27:51,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a7011d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:27:51, skipping insertion in model container [2021-11-21 01:27:51,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:48" (2/3) ... [2021-11-21 01:27:51,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a7011d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:27:51, skipping insertion in model container [2021-11-21 01:27:51,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:27:51" (3/3) ... [2021-11-21 01:27:51,395 INFO L111 eAbstractionObserver]: Analyzing ICFG knuth_valuebound100.i [2021-11-21 01:27:51,424 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:27:51,424 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:27:51,493 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:27:51,502 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 01:27:51,503 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:27:51,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-21 01:27:51,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 01:27:51,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:51,525 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:27:51,525 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:27:51,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:51,531 INFO L85 PathProgramCache]: Analyzing trace with hash 919095715, now seen corresponding path program 1 times [2021-11-21 01:27:51,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:27:51,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174083770] [2021-11-21 01:27:51,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:51,546 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:27:51,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:27:51,549 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:27:51,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 01:27:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:51,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 01:27:51,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:27:52,421 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-21 01:27:52,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:27:52,729 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-21 01:27:52,730 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:27:52,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174083770] [2021-11-21 01:27:52,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174083770] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-21 01:27:52,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:27:52,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-21 01:27:52,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055107181] [2021-11-21 01:27:52,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:27:52,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:27:52,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:27:52,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:27:52,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:27:52,778 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 01:27:52,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:27:52,799 INFO L93 Difference]: Finished difference Result 59 states and 92 transitions. [2021-11-21 01:27:52,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:27:52,801 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2021-11-21 01:27:52,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:27:52,810 INFO L225 Difference]: With dead ends: 59 [2021-11-21 01:27:52,811 INFO L226 Difference]: Without dead ends: 27 [2021-11-21 01:27:52,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 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 01:27:52,819 INFO L933 BasicCegarLoop]: 40 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, 40 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 01:27:52,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:27:52,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-21 01:27:52,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-21 01:27:52,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-21 01:27:52,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2021-11-21 01:27:52,862 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 29 [2021-11-21 01:27:52,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:27:52,862 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-11-21 01:27:52,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 01:27:52,863 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2021-11-21 01:27:52,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 01:27:52,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:52,866 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:27:52,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:27:53,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:27:53,072 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:27:53,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:53,073 INFO L85 PathProgramCache]: Analyzing trace with hash -960358297, now seen corresponding path program 1 times [2021-11-21 01:27:53,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:27:53,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799001020] [2021-11-21 01:27:53,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:53,075 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:27:53,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:27:53,076 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:27:53,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37520830-7fb0-4f2f-92a6-f2c37b44f750/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 01:28:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:28:37,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-21 01:28:37,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:31:45,499 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ BitVec 32))) (and (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ bv100 32)) (not (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4|) (let ((.cse0 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))) (let ((.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0))) (bvadd (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvneg (bvmul (bvmul .cse1 (_ bv4 32)) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvneg (bvmul (bvadd (bvmul .cse3 (_ bv8 32)) (bvmul .cse2 (_ bv8 32))) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))))))) (bvule |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ bv100 32)))) is different from false [2021-11-21 01:31:47,527 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ BitVec 32))) (and (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ bv100 32)) (not (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4|) (let ((.cse0 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))) (let ((.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0))) (bvadd (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvneg (bvmul (bvmul .cse1 (_ bv4 32)) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvneg (bvmul (bvadd (bvmul .cse3 (_ bv8 32)) (bvmul .cse2 (_ bv8 32))) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))))))) (bvule |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ bv100 32)))) is different from true [2021-11-21 01:31:47,528 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-21 01:31:47,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:32:06,495 WARN L860 $PredicateComparison]: unable to prove that (= (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv8 32) .cse3) (bvmul (_ bv4 32) (bvmul .cse1 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul .cse0 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|))))) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|)) is different from true [2021-11-21 01:32:15,675 WARN L860 $PredicateComparison]: unable to prove that (or (not (bvugt |c_ULTIMATE.start_main_~a~0#1| (_ bv2 32))) (= (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv8 32) .cse3) (bvmul (_ bv4 32) (bvmul .cse1 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul .cse0 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|))))) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|))) is different from true [2021-11-21 01:32:28,349 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (= (let ((.cse1 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv4294967294 32)))) (let ((.cse0 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))) (.cse3 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1))) (bvadd (bvmul (_ bv4 32) (bvmul .cse0 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv8 32) .cse3) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5|)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv2 32))))) is different from true [2021-11-21 01:32:51,909 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (= (let ((.cse1 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv4294967294 32)))) (let ((.cse0 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))) (.cse3 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1))) (bvadd (bvmul (_ bv4 32) (bvmul .cse0 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv8 32) .cse3) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5|)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv2 32)))) (= c_assume_abort_if_not_~cond (_ bv0 32))) is different from true [2021-11-21 01:33:14,102 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (or (not (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv2 32))) (= (let ((.cse2 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvurem |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|)) (.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv8 32) .cse3) (bvmul (_ bv4 32) (bvmul .cse1 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul .cse0 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|))))) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|)) (not (bvule |ULTIMATE.start_main_~a~0#1| (_ bv100 32))))) is different from true [2021-11-21 01:37:20,395 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ BitVec 32))) (or (let ((.cse0 (bvule |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ bv100 32)))) (and (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv1 32))) (not .cse0)) (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) .cse0))) (= (let ((.cse3 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ bv4294967294 32)))) (let ((.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (.cse2 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|))) (.cse4 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse3))) (bvadd (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse3) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvneg (bvmul (bvmul .cse1 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvmul (_ bv4 32) (bvmul .cse4 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse4 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7|)) (not (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ bv2 32))) (exists ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (and (not (= (let ((.cse5 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse6 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |ULTIMATE.start_main_~a~0#1|))) (.cse8 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |ULTIMATE.start_main_~a~0#1|)) (.cse7 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse5))) (bvadd (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse5) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul .cse6 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvadd (bvmul .cse7 (_ bv8 32)) (bvmul .cse6 (_ bv8 32))) |ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvmul .cse8 (_ bv4 32)) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv8 32) .cse8) (bvmul (_ bv4 32) (bvmul .cse7 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7|))) (bvule |ULTIMATE.start_main_~a~0#1| (_ bv100 32)) (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv2 32)))))) is different from false [2021-11-21 01:37:22,440 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ BitVec 32))) (or (let ((.cse0 (bvule |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ bv100 32)))) (and (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv1 32))) (not .cse0)) (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) .cse0))) (= (let ((.cse3 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ bv4294967294 32)))) (let ((.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (.cse2 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|))) (.cse4 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse3))) (bvadd (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse3) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvneg (bvmul (bvmul .cse1 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvmul (_ bv4 32) (bvmul .cse4 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse4 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7|)) (not (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ bv2 32))) (exists ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (and (not (= (let ((.cse5 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse6 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |ULTIMATE.start_main_~a~0#1|))) (.cse8 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |ULTIMATE.start_main_~a~0#1|)) (.cse7 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse5))) (bvadd (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse5) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul .cse6 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvadd (bvmul .cse7 (_ bv8 32)) (bvmul .cse6 (_ bv8 32))) |ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvmul .cse8 (_ bv4 32)) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv8 32) .cse8) (bvmul (_ bv4 32) (bvmul .cse7 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7|))) (bvule |ULTIMATE.start_main_~a~0#1| (_ bv100 32)) (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv2 32)))))) is different from true