./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0882.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0882.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8 --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 3420d94795154cd5f059d8ec6bdcee482b4f1cb5d11f69298f0ab04296514804 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:40:26,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:40:26,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:40:26,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:40:26,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:40:26,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:40:26,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:40:26,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:40:26,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:40:26,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:40:26,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:40:26,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:40:26,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:40:26,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:40:26,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:40:26,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:40:26,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:40:26,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:40:26,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:40:26,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:40:26,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:40:26,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:40:26,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:40:26,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:40:26,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:40:26,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:40:26,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:40:26,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:40:26,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:40:26,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:40:26,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:40:26,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:40:26,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:40:26,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:40:26,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:40:26,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:40:26,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:40:26,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:40:26,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:40:26,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:40:26,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:40:26,655 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:40:26,689 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:40:26,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:40:26,691 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:40:26,691 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:40:26,691 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:40:26,691 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:40:26,692 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:40:26,692 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:40:26,692 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:40:26,693 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:40:26,693 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:40:26,693 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:40:26,694 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:40:26,694 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:40:26,694 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:40:26,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:40:26,695 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:40:26,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:40:26,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:40:26,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:40:26,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:40:26,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:40:26,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:40:26,697 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:40:26,698 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:40:26,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:40:26,698 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:40:26,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:40:26,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:40:26,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:40:26,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:40:26,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:40:26,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:40:26,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:40:26,701 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:40:26,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:40:26,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:40:26,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:40:26,702 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:40:26,702 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_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3420d94795154cd5f059d8ec6bdcee482b4f1cb5d11f69298f0ab04296514804 [2021-11-07 01:40:27,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:40:27,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:40:27,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:40:27,141 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:40:27,142 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:40:27,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-newlib/double_req_bl_0882.c [2021-11-07 01:40:27,256 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/data/fab0f840e/2daaf56a3d9244048dd890fb5d233f19/FLAG183ba5c60 [2021-11-07 01:40:28,069 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:40:28,070 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/sv-benchmarks/c/float-newlib/double_req_bl_0882.c [2021-11-07 01:40:28,092 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/data/fab0f840e/2daaf56a3d9244048dd890fb5d233f19/FLAG183ba5c60 [2021-11-07 01:40:28,295 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/data/fab0f840e/2daaf56a3d9244048dd890fb5d233f19 [2021-11-07 01:40:28,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:40:28,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:40:28,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:40:28,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:40:28,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:40:28,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:40:28" (1/1) ... [2021-11-07 01:40:28,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b2fa625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:28, skipping insertion in model container [2021-11-07 01:40:28,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:40:28" (1/1) ... [2021-11-07 01:40:28,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:40:28,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:40:28,706 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:1712) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$42(StandardFunctionHandler.java:365) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2000) 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:1629) 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:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1606) 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:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-07 01:40:28,712 INFO L168 Benchmark]: Toolchain (without parser) took 410.29 ms. Allocated memory is still 127.9 MB. Free memory was 90.1 MB in the beginning and 100.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:28,713 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 127.9 MB. Free memory was 99.0 MB in the beginning and 98.9 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:40:28,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.80 ms. Allocated memory is still 127.9 MB. Free memory was 89.8 MB in the beginning and 100.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:28,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 127.9 MB. Free memory was 99.0 MB in the beginning and 98.9 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 406.80 ms. Allocated memory is still 127.9 MB. Free memory was 89.8 MB in the beginning and 100.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * 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_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0882.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8 --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 3420d94795154cd5f059d8ec6bdcee482b4f1cb5d11f69298f0ab04296514804 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:40:31,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:40:31,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:40:31,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:40:31,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:40:31,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:40:31,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:40:31,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:40:31,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:40:31,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:40:31,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:40:31,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:40:31,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:40:31,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:40:31,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:40:31,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:40:31,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:40:31,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:40:31,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:40:31,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:40:31,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:40:31,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:40:31,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:40:31,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:40:31,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:40:31,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:40:31,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:40:31,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:40:31,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:40:31,785 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:40:31,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:40:31,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:40:31,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:40:31,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:40:31,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:40:31,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:40:31,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:40:31,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:40:31,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:40:31,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:40:31,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:40:31,810 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:40:31,850 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:40:31,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:40:31,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:40:31,852 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:40:31,852 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:40:31,852 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:40:31,853 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:40:31,853 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:40:31,853 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:40:31,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:40:31,855 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:40:31,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:40:31,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:40:31,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:40:31,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:40:31,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:40:31,857 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:40:31,857 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:40:31,858 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:40:31,858 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:40:31,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:40:31,858 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:40:31,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:40:31,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:40:31,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:40:31,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:40:31,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:40:31,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:40:31,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:40:31,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:40:31,861 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:40:31,862 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:40:31,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:40:31,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:40:31,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:40:31,863 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_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3420d94795154cd5f059d8ec6bdcee482b4f1cb5d11f69298f0ab04296514804 [2021-11-07 01:40:32,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:40:32,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:40:32,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:40:32,362 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:40:32,363 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:40:32,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-newlib/double_req_bl_0882.c [2021-11-07 01:40:32,464 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/data/de3c2e504/5f431f783d99488786a431313c12b680/FLAG875c5c9aa [2021-11-07 01:40:33,369 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:40:33,379 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/sv-benchmarks/c/float-newlib/double_req_bl_0882.c [2021-11-07 01:40:33,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/data/de3c2e504/5f431f783d99488786a431313c12b680/FLAG875c5c9aa [2021-11-07 01:40:33,616 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/data/de3c2e504/5f431f783d99488786a431313c12b680 [2021-11-07 01:40:33,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:40:33,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:40:33,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:40:33,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:40:33,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:40:33,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:40:33" (1/1) ... [2021-11-07 01:40:33,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33acee4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:33, skipping insertion in model container [2021-11-07 01:40:33,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:40:33" (1/1) ... [2021-11-07 01:40:33,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:40:33,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:40:34,040 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/sv-benchmarks/c/float-newlib/double_req_bl_0882.c[14275,14288] [2021-11-07 01:40:34,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:40:34,071 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:40:34,299 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/sv-benchmarks/c/float-newlib/double_req_bl_0882.c[14275,14288] [2021-11-07 01:40:34,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:40:34,338 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:40:34,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:34 WrapperNode [2021-11-07 01:40:34,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:40:34,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:40:34,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:40:34,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:40:34,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:34" (1/1) ... [2021-11-07 01:40:34,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:34" (1/1) ... [2021-11-07 01:40:34,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:40:34,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:40:34,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:40:34,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:40:34,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:34" (1/1) ... [2021-11-07 01:40:34,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:34" (1/1) ... [2021-11-07 01:40:34,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:34" (1/1) ... [2021-11-07 01:40:34,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:34" (1/1) ... [2021-11-07 01:40:34,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:34" (1/1) ... [2021-11-07 01:40:34,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:34" (1/1) ... [2021-11-07 01:40:34,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:34" (1/1) ... [2021-11-07 01:40:34,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:40:34,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:40:34,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:40:34,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:40:34,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:34" (1/1) ... [2021-11-07 01:40:34,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:40:34,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:40:34,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:40:34,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:40:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-07 01:40:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-07 01:40:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:40:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:40:34,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-07 01:40:34,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:40:34,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:40:34,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:40:34,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:40:34,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:41:41,422 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:41:41,423 INFO L299 CfgBuilder]: Removed 92 assume(true) statements. [2021-11-07 01:41:41,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:41:41 BoogieIcfgContainer [2021-11-07 01:41:41,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:41:41,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:41:41,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:41:41,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:41:41,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:40:33" (1/3) ... [2021-11-07 01:41:41,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65029aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:41:41, skipping insertion in model container [2021-11-07 01:41:41,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:34" (2/3) ... [2021-11-07 01:41:41,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65029aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:41:41, skipping insertion in model container [2021-11-07 01:41:41,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:41:41" (3/3) ... [2021-11-07 01:41:41,437 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0882.c [2021-11-07 01:41:41,444 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:41:41,445 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:41:41,509 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:41:41,518 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 [2021-11-07 01:41:41,518 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:41:41,548 INFO L276 IsEmpty]: Start isEmpty. Operand has 217 states, 215 states have (on average 1.7209302325581395) internal successors, (370), 216 states have internal predecessors, (370), 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) [2021-11-07 01:41:41,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 01:41:41,555 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:41,556 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:41,557 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:41:41,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:41,564 INFO L85 PathProgramCache]: Analyzing trace with hash 484722149, now seen corresponding path program 1 times [2021-11-07 01:41:41,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:41,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405773839] [2021-11-07 01:41:41,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:41,592 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:41,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:41,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:41,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:41:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:42,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:41:42,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:42,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:42,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:42,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:42,909 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:42,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405773839] [2021-11-07 01:41:42,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405773839] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:42,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:42,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:41:42,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889347615] [2021-11-07 01:41:42,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:41:42,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:42,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:41:42,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:41:42,941 INFO L87 Difference]: Start difference. First operand has 217 states, 215 states have (on average 1.7209302325581395) internal successors, (370), 216 states have internal predecessors, (370), 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) 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) [2021-11-07 01:41:42,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:42,996 INFO L93 Difference]: Finished difference Result 431 states and 736 transitions. [2021-11-07 01:41:42,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:41:42,998 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 [2021-11-07 01:41:42,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:43,015 INFO L225 Difference]: With dead ends: 431 [2021-11-07 01:41:43,015 INFO L226 Difference]: Without dead ends: 213 [2021-11-07 01:41:43,020 INFO L786 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 [2021-11-07 01:41:43,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-11-07 01:41:43,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2021-11-07 01:41:43,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.3773584905660377) internal successors, (292), 212 states have internal predecessors, (292), 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) [2021-11-07 01:41:43,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 292 transitions. [2021-11-07 01:41:43,087 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 292 transitions. Word has length 11 [2021-11-07 01:41:43,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:43,088 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 292 transitions. [2021-11-07 01:41:43,088 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) [2021-11-07 01:41:43,089 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 292 transitions. [2021-11-07 01:41:43,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 01:41:43,090 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:43,090 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:43,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:43,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:43,313 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:41:43,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:43,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1071825986, now seen corresponding path program 1 times [2021-11-07 01:41:43,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:43,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966404943] [2021-11-07 01:41:43,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:43,316 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:43,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:43,317 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:43,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:41:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:43,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 01:41:43,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:44,474 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 29 treesize of output 27 [2021-11-07 01:41:48,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:48,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:49,759 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 [2021-11-07 01:41:51,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:51,025 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:51,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966404943] [2021-11-07 01:41:51,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [966404943] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:51,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:51,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:41:51,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049190598] [2021-11-07 01:41:51,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:41:51,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:51,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:41:51,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=39, Unknown=1, NotChecked=0, Total=56 [2021-11-07 01:41:51,031 INFO L87 Difference]: Start difference. First operand 213 states and 292 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2021-11-07 01:42:12,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:12,467 INFO L93 Difference]: Finished difference Result 366 states and 483 transitions. [2021-11-07 01:42:12,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:42:12,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 [2021-11-07 01:42:12,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:12,636 INFO L225 Difference]: With dead ends: 366 [2021-11-07 01:42:12,636 INFO L226 Difference]: Without dead ends: 181 [2021-11-07 01:42:12,638 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=31, Invalid=58, Unknown=1, NotChecked=0, Total=90 [2021-11-07 01:42:12,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-07 01:42:12,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172. [2021-11-07 01:42:12,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.280701754385965) internal successors, (219), 171 states have internal predecessors, (219), 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) [2021-11-07 01:42:12,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 219 transitions. [2021-11-07 01:42:12,662 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 219 transitions. Word has length 13 [2021-11-07 01:42:12,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:12,663 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 219 transitions. [2021-11-07 01:42:12,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2021-11-07 01:42:12,663 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 219 transitions. [2021-11-07 01:42:12,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:42:12,665 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:12,665 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:12,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:42:12,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:42:12,880 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:42:12,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:12,881 INFO L85 PathProgramCache]: Analyzing trace with hash 754691751, now seen corresponding path program 1 times [2021-11-07 01:42:12,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:42:12,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548833652] [2021-11-07 01:42:12,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:12,882 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:42:12,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:42:12,884 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:42:12,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:42:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:13,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:42:13,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:16,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:16,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:19,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:19,021 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:42:19,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548833652] [2021-11-07 01:42:19,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1548833652] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:19,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:19,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-07 01:42:19,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915313593] [2021-11-07 01:42:19,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:42:19,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:42:19,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:42:19,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:42:19,026 INFO L87 Difference]: Start difference. First operand 172 states and 219 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) [2021-11-07 01:42:25,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:25,903 INFO L93 Difference]: Finished difference Result 322 states and 405 transitions. [2021-11-07 01:42:25,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:42:25,906 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 [2021-11-07 01:42:25,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:25,908 INFO L225 Difference]: With dead ends: 322 [2021-11-07 01:42:25,909 INFO L226 Difference]: Without dead ends: 162 [2021-11-07 01:42:25,911 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:42:25,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-07 01:42:25,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 153. [2021-11-07 01:42:25,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 152 states have (on average 1.1776315789473684) internal successors, (179), 152 states have internal predecessors, (179), 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) [2021-11-07 01:42:25,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 179 transitions. [2021-11-07 01:42:25,934 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 179 transitions. Word has length 15 [2021-11-07 01:42:25,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:25,934 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 179 transitions. [2021-11-07 01:42:25,935 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) [2021-11-07 01:42:25,935 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 179 transitions. [2021-11-07 01:42:25,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:42:25,936 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:25,936 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:25,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:42:26,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:42:26,152 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:42:26,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:26,153 INFO L85 PathProgramCache]: Analyzing trace with hash 756538793, now seen corresponding path program 1 times [2021-11-07 01:42:26,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:42:26,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901068996] [2021-11-07 01:42:26,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:26,154 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:42:26,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:42:26,156 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:42:26,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:42:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:26,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 01:42:26,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:27,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 45 [2021-11-07 01:42:30,292 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:42:30,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 71 [2021-11-07 01:42:30,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-11-07 01:42:34,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:34,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:41,762 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:42:41,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 95 treesize of output 94 [2021-11-07 01:42:42,076 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:42:42,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 98 [2021-11-07 01:42:42,446 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:42:42,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 91 [2021-11-07 01:42:43,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-07 01:42:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:51,292 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:42:51,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901068996] [2021-11-07 01:42:51,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901068996] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:51,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:51,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-07 01:42:51,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906964027] [2021-11-07 01:42:51,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 01:42:51,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:42:51,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 01:42:51,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:42:51,295 INFO L87 Difference]: Start difference. First operand 153 states and 179 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 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) [2021-11-07 01:42:59,493 WARN L207 SmtUtils]: Spent 5.21 s on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2021-11-07 01:43:06,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:06,308 INFO L93 Difference]: Finished difference Result 171 states and 197 transitions. [2021-11-07 01:43:06,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:43:06,310 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 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 [2021-11-07 01:43:06,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:06,311 INFO L225 Difference]: With dead ends: 171 [2021-11-07 01:43:06,311 INFO L226 Difference]: Without dead ends: 51 [2021-11-07 01:43:06,313 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:43:06,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-07 01:43:06,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 42. [2021-11-07 01:43:06,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 41 states have internal predecessors, (45), 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) [2021-11-07 01:43:06,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2021-11-07 01:43:06,321 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 15 [2021-11-07 01:43:06,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:06,322 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2021-11-07 01:43:06,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 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) [2021-11-07 01:43:06,323 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2021-11-07 01:43:06,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 01:43:06,324 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:06,324 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:06,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:06,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:06,540 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:43:06,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:06,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1368879435, now seen corresponding path program 1 times [2021-11-07 01:43:06,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:06,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320304550] [2021-11-07 01:43:06,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:06,542 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:06,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:06,544 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:06,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:43:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:07,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:43:07,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:11,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:11,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:19,318 WARN L838 $PredicateComparison]: unable to prove that (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start___ieee754_pow_~x) (_ +zero 11 53)) is different from false [2021-11-07 01:43:21,576 WARN L860 $PredicateComparison]: unable to prove that (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start___ieee754_pow_~x) (_ +zero 11 53)) is different from true [2021-11-07 01:44:17,905 WARN L838 $PredicateComparison]: unable to prove that (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start_main_~x~0) (_ +zero 11 53)) is different from false [2021-11-07 01:44:20,143 WARN L860 $PredicateComparison]: unable to prove that (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start_main_~x~0) (_ +zero 11 53)) is different from true [2021-11-07 01:44:21,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:21,763 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:44:21,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320304550] [2021-11-07 01:44:21,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320304550] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:21,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:21,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-07 01:44:21,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565187519] [2021-11-07 01:44:21,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:44:21,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:44:21,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:44:21,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=51, Unknown=4, NotChecked=30, Total=110 [2021-11-07 01:44:21,768 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 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) [2021-11-07 01:44:25,509 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start_main_~x~0) (_ +zero 11 53)) (= c_ULTIMATE.start_main_~x~0 (fp.div c_currentRoundingMode .cse0 (_ +zero 11 53))) (= c_~one_pow~0 .cse0))) is different from true [2021-11-07 01:44:29,011 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (= c_ULTIMATE.start___ieee754_pow_~x (fp.div c_currentRoundingMode .cse0 (_ +zero 11 53))) (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start___ieee754_pow_~x) (_ +zero 11 53)) (= c_~one_pow~0 .cse0))) is different from true [2021-11-07 01:44:35,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:35,340 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2021-11-07 01:44:35,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:44:35,341 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 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 19 [2021-11-07 01:44:35,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:35,342 INFO L225 Difference]: With dead ends: 54 [2021-11-07 01:44:35,343 INFO L226 Difference]: Without dead ends: 51 [2021-11-07 01:44:35,343 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 19.9s TimeCoverageRelationStatistics Valid=34, Invalid=66, Unknown=6, NotChecked=76, Total=182 [2021-11-07 01:44:35,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-07 01:44:35,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2021-11-07 01:44:35,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.0930232558139534) internal successors, (47), 43 states have internal predecessors, (47), 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) [2021-11-07 01:44:35,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2021-11-07 01:44:35,355 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 19 [2021-11-07 01:44:35,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:35,356 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2021-11-07 01:44:35,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 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) [2021-11-07 01:44:35,357 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2021-11-07 01:44:35,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 01:44:35,358 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:35,358 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:44:35,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-07 01:44:35,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:44:35,572 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:44:35,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:35,572 INFO L85 PathProgramCache]: Analyzing trace with hash -319058285, now seen corresponding path program 1 times [2021-11-07 01:44:35,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:44:35,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909100974] [2021-11-07 01:44:35,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:35,573 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:44:35,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:44:35,575 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:44:35,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:44:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:36,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:44:36,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:38,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:38,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:40,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:40,333 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:44:40,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909100974] [2021-11-07 01:44:40,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909100974] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:40,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:40,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:44:40,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683470507] [2021-11-07 01:44:40,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 01:44:40,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:44:40,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 01:44:40,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:44:40,337 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 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) [2021-11-07 01:44:46,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:46,243 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2021-11-07 01:44:46,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:44:46,244 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 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 [2021-11-07 01:44:46,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:46,245 INFO L225 Difference]: With dead ends: 56 [2021-11-07 01:44:46,245 INFO L226 Difference]: Without dead ends: 53 [2021-11-07 01:44:46,246 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:44:46,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-07 01:44:46,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2021-11-07 01:44:46,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.0930232558139534) internal successors, (47), 43 states have internal predecessors, (47), 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) [2021-11-07 01:44:46,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2021-11-07 01:44:46,255 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 21 [2021-11-07 01:44:46,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:46,256 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2021-11-07 01:44:46,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 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) [2021-11-07 01:44:46,256 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2021-11-07 01:44:46,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 01:44:46,258 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:46,258 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:44:46,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:44:46,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:44:46,474 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:44:46,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:46,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1262256800, now seen corresponding path program 1 times [2021-11-07 01:44:46,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:44:46,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1258896398] [2021-11-07 01:44:46,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:46,476 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:44:46,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:44:46,477 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:44:46,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:44:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:47,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 01:44:47,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:55,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:55,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:45:05,005 WARN L207 SmtUtils]: Spent 5.04 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-07 01:45:10,613 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_73| (_ BitVec 64))) (or (= (_ bv0 32) (bvand (_ bv2147483648 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_73|))) (not (= (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start___ieee754_pow_~x) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_73|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_73|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_73|)))))) is different from false [2021-11-07 01:45:12,861 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_73| (_ BitVec 64))) (or (= (_ bv0 32) (bvand (_ bv2147483648 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_73|))) (not (= (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start___ieee754_pow_~x) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_73|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_73|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_73|)))))) is different from true [2021-11-07 01:45:17,901 WARN L207 SmtUtils]: Spent 5.04 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-07 01:45:26,504 WARN L207 SmtUtils]: Spent 5.07 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-07 01:45:36,062 WARN L207 SmtUtils]: Spent 5.02 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-07 01:45:45,600 WARN L207 SmtUtils]: Spent 5.02 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-07 01:45:55,218 WARN L207 SmtUtils]: Spent 5.10 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-07 01:46:03,109 WARN L207 SmtUtils]: Spent 5.07 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-07 01:46:12,727 WARN L207 SmtUtils]: Spent 5.08 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-07 01:46:22,313 WARN L207 SmtUtils]: Spent 5.06 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-07 01:46:31,864 WARN L207 SmtUtils]: Spent 5.03 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-07 01:46:40,498 WARN L207 SmtUtils]: Spent 5.04 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-07 01:46:50,041 WARN L207 SmtUtils]: Spent 5.03 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-07 01:46:59,625 WARN L207 SmtUtils]: Spent 5.08 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-07 01:47:06,387 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_73| (_ BitVec 64))) (or (= (_ bv0 32) (bvand (_ bv2147483648 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_73|))) (not (= (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start_main_~x~0) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_73|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_73|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_73|)))))) is different from false [2021-11-07 01:47:08,646 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_73| (_ BitVec 64))) (or (= (_ bv0 32) (bvand (_ bv2147483648 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_73|))) (not (= (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start_main_~x~0) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_73|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_73|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_73|)))))) is different from true [2021-11-07 01:47:11,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:47:11,057 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:47:11,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1258896398] [2021-11-07 01:47:11,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1258896398] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:47:11,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:47:11,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 17 [2021-11-07 01:47:11,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210573666] [2021-11-07 01:47:11,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-07 01:47:11,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:47:11,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-07 01:47:11,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=202, Unknown=4, NotChecked=58, Total=306 [2021-11-07 01:47:11,062 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 17 states have internal predecessors, (43), 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) [2021-11-07 01:47:15,275 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (= c_ULTIMATE.start_main_~x~0 (fp.div c_currentRoundingMode .cse0 (_ +zero 11 53))) (= c_~one_pow~0 .cse0) (forall ((|v_skolemized_q#valueAsBitvector_73| (_ BitVec 64))) (or (= (_ bv0 32) (bvand (_ bv2147483648 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_73|))) (not (= (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start_main_~x~0) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_73|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_73|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_73|)))))))) is different from true [2021-11-07 01:47:18,448 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (= c_ULTIMATE.start___ieee754_pow_~x (fp.div c_currentRoundingMode .cse0 (_ +zero 11 53))) (forall ((|v_skolemized_q#valueAsBitvector_73| (_ BitVec 64))) (or (= (_ bv0 32) (bvand (_ bv2147483648 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_73|))) (not (= (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start___ieee754_pow_~x) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_73|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_73|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_73|)))))) (= c_~one_pow~0 .cse0))) is different from true [2021-11-07 01:47:26,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:47:26,781 INFO L93 Difference]: Finished difference Result 53 states and 55 transitions. [2021-11-07 01:47:26,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 01:47:26,782 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 17 states have internal predecessors, (43), 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 23 [2021-11-07 01:47:26,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:47:26,783 INFO L225 Difference]: With dead ends: 53 [2021-11-07 01:47:26,783 INFO L226 Difference]: Without dead ends: 43 [2021-11-07 01:47:26,784 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 28.5s TimeCoverageRelationStatistics Valid=91, Invalid=299, Unknown=6, NotChecked=156, Total=552 [2021-11-07 01:47:26,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-07 01:47:26,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-07 01:47:26,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.0714285714285714) internal successors, (45), 42 states have internal predecessors, (45), 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) [2021-11-07 01:47:26,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2021-11-07 01:47:26,791 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 23 [2021-11-07 01:47:26,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:47:26,792 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2021-11-07 01:47:26,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 17 states have internal predecessors, (43), 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) [2021-11-07 01:47:26,792 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2021-11-07 01:47:26,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:47:26,794 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:47:26,794 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:47:26,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-07 01:47:27,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:47:27,004 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:47:27,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:47:27,004 INFO L85 PathProgramCache]: Analyzing trace with hash 826325992, now seen corresponding path program 1 times [2021-11-07 01:47:27,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:47:27,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063215165] [2021-11-07 01:47:27,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:47:27,005 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:47:27,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:47:27,007 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:47:27,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:47:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:47:27,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:47:27,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:47:31,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:47:31,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:47:38,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:47:38,776 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:47:38,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063215165] [2021-11-07 01:47:38,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063215165] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:47:38,777 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:47:38,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2021-11-07 01:47:38,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500097957] [2021-11-07 01:47:38,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-07 01:47:38,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:47:38,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 01:47:38,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:47:38,780 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 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) [2021-11-07 01:47:45,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:47:45,599 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2021-11-07 01:47:45,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:47:45,600 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 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 25 [2021-11-07 01:47:45,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:47:45,601 INFO L225 Difference]: With dead ends: 50 [2021-11-07 01:47:45,601 INFO L226 Difference]: Without dead ends: 37 [2021-11-07 01:47:45,601 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:47:45,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-07 01:47:45,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-11-07 01:47:45,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 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) [2021-11-07 01:47:45,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2021-11-07 01:47:45,607 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 25 [2021-11-07 01:47:45,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:47:45,608 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2021-11-07 01:47:45,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 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) [2021-11-07 01:47:45,608 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2021-11-07 01:47:45,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 01:47:45,609 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:47:45,609 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:47:45,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:47:45,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:47:45,824 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:47:45,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:47:45,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1611916476, now seen corresponding path program 1 times [2021-11-07 01:47:45,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:47:45,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202048191] [2021-11-07 01:47:45,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:47:45,825 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:47:45,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:47:45,826 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:47:45,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d29ef8b-b96f-43c4-bd7a-2052a87c14a1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:47:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:47:47,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 01:47:47,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:47:51,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-11-07 01:47:53,606 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:47:53,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 130 treesize of output 116 [2021-11-07 01:47:53,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 33 [2021-11-07 01:48:00,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:48:00,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:48:08,478 WARN L838 $PredicateComparison]: unable to prove that (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start___ieee754_pow_~z~1) (_ +zero 11 53)) is different from false [2021-11-07 01:48:10,719 WARN L860 $PredicateComparison]: unable to prove that (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start___ieee754_pow_~z~1) (_ +zero 11 53)) is different from true [2021-11-07 01:48:17,496 WARN L838 $PredicateComparison]: unable to prove that (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start___ieee754_pow_~ax~0) (_ +zero 11 53)) is different from false [2021-11-07 01:48:19,734 WARN L860 $PredicateComparison]: unable to prove that (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start___ieee754_pow_~ax~0) (_ +zero 11 53)) is different from true [2021-11-07 01:48:30,964 WARN L838 $PredicateComparison]: unable to prove that (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 |c_ULTIMATE.start_fabs_double_#res|) (_ +zero 11 53)) is different from false [2021-11-07 01:48:33,214 WARN L860 $PredicateComparison]: unable to prove that (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 |c_ULTIMATE.start_fabs_double_#res|) (_ +zero 11 53)) is different from true [2021-11-07 01:48:39,964 WARN L838 $PredicateComparison]: unable to prove that (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start_fabs_double_~x) (_ +zero 11 53)) is different from false [2021-11-07 01:48:42,215 WARN L860 $PredicateComparison]: unable to prove that (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 c_ULTIMATE.start_fabs_double_~x) (_ +zero 11 53)) is different from true [2021-11-07 01:49:00,767 WARN L207 SmtUtils]: Spent 5.05 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-07 01:49:03,920 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_fabs_double_~#sh_u~3.base_5| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_77| (_ BitVec 64))) (or (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 (let ((.cse0 (let ((.cse1 (bvand (_ bv2147483647 32) c_ULTIMATE.start_fabs_double_~high~0))) (concat .cse1 (select (store (store (select |c_#memory_int| |v_ULTIMATE.start_fabs_double_~#sh_u~3.base_5|) (_ bv0 32) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_77|)) (_ bv4 32) .cse1) (_ bv0 32)))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0)))) (_ +zero 11 53)) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_77|)) c_ULTIMATE.start_fabs_double_~x)))) is different from false [2021-11-07 01:49:06,161 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_fabs_double_~#sh_u~3.base_5| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_77| (_ BitVec 64))) (or (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 (let ((.cse0 (let ((.cse1 (bvand (_ bv2147483647 32) c_ULTIMATE.start_fabs_double_~high~0))) (concat .cse1 (select (store (store (select |c_#memory_int| |v_ULTIMATE.start_fabs_double_~#sh_u~3.base_5|) (_ bv0 32) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_77|)) (_ bv4 32) .cse1) (_ bv0 32)))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0)))) (_ +zero 11 53)) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_77|)) c_ULTIMATE.start_fabs_double_~x)))) is different from true [2021-11-07 01:49:20,235 WARN L207 SmtUtils]: Spent 5.06 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-07 01:49:22,306 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:49:22,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 129 treesize of output 108 [2021-11-07 01:49:35,473 WARN L207 SmtUtils]: Spent 13.11 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-07 01:49:35,473 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:49:35,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 106 [2021-11-07 01:49:44,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-07 01:49:57,378 WARN L207 SmtUtils]: Spent 5.06 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-07 01:50:15,442 WARN L207 SmtUtils]: Spent 5.07 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-07 01:50:29,624 WARN L207 SmtUtils]: Spent 5.15 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-07 01:50:34,656 WARN L207 SmtUtils]: Spent 5.03 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-07 01:50:44,227 WARN L207 SmtUtils]: Spent 5.06 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-07 01:50:46,588 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_76| (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_77| (_ BitVec 64))) (or (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_76|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_76|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_76|)) c_ULTIMATE.start_fabs_double_~x)) (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 (let ((.cse0 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_76|)) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_77|)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0)))) (_ +zero 11 53)) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_77|)) c_ULTIMATE.start_fabs_double_~x)))) is different from true [2021-11-07 01:50:51,632 WARN L207 SmtUtils]: Spent 5.04 s on a formula simplification that was a NOOP. DAG size: 12 [2021-11-07 01:51:01,179 WARN L207 SmtUtils]: Spent 5.04 s on a formula simplification that was a NOOP. DAG size: 12 [2021-11-07 01:51:12,531 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_76| (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_77| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_76|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_76|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_76|)))) (or (not (= .cse0 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_77|)))) (fp.eq (fp.div c_currentRoundingMode c_~one_pow~0 (let ((.cse1 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_76|)) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_77|)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1)))) (_ +zero 11 53)) (not (= .cse0 c_ULTIMATE.start___ieee754_pow_~x))))) is different from true [2021-11-07 01:51:17,608 WARN L207 SmtUtils]: Spent 5.07 s on a formula simplification that was a NOOP. DAG size: 12 [2021-11-07 01:51:27,176 WARN L207 SmtUtils]: Spent 5.07 s on a formula simplification that was a NOOP. DAG size: 12 [2021-11-07 01:51:36,769 WARN L207 SmtUtils]: Spent 5.08 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-07 01:51:41,900 WARN L207 SmtUtils]: Spent 5.12 s on a formula simplification that was a NOOP. DAG size: 12 [2021-11-07 01:51:51,458 WARN L207 SmtUtils]: Spent 5.05 s on a formula simplification that was a NOOP. DAG size: 12 [2021-11-07 01:52:01,040 WARN L207 SmtUtils]: Spent 5.06 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-07 01:52:06,147 WARN L207 SmtUtils]: Spent 5.09 s on a formula simplification that was a NOOP. DAG size: 12 [2021-11-07 01:52:25,027 WARN L207 SmtUtils]: Spent 5.08 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-07 01:52:30,116 WARN L207 SmtUtils]: Spent 5.08 s on a formula simplification that was a NOOP. DAG size: 12 [2021-11-07 01:52:39,708 WARN L207 SmtUtils]: Spent 5.05 s on a formula simplification that was a NOOP. DAG size: 12 [2021-11-07 01:52:48,506 WARN L207 SmtUtils]: Spent 5.05 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-07 01:54:23,227 WARN L207 SmtUtils]: Spent 5.00 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-07 01:54:37,803 WARN L207 SmtUtils]: Spent 5.03 s on a formula simplification that was a NOOP. DAG size: 12