./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7 --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 dba22d6df3d4e3652cbc5549e3bb451cd645bea6f6419ad67cf157d39a1c2871 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:24:24,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:24:24,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:24:24,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:24:24,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:24:24,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:24:24,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:24:24,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:24:24,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:24:24,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:24:24,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:24:24,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:24:24,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:24:24,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:24:24,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:24:24,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:24:24,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:24:24,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:24:24,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:24:24,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:24:24,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:24:24,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:24:24,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:24:24,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:24:24,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:24:24,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:24:24,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:24:24,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:24:24,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:24:24,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:24:24,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:24:24,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:24:24,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:24:24,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:24:24,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:24:24,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:24:24,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:24:24,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:24:24,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:24:24,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:24:24,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:24:24,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:24:24,745 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:24:24,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:24:24,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:24:24,747 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:24:24,748 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:24:24,748 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:24:24,748 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:24:24,748 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:24:24,749 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:24:24,749 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:24:24,750 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:24:24,750 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:24:24,751 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:24:24,751 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:24:24,751 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:24:24,751 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:24:24,752 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:24:24,752 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:24:24,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:24:24,753 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:24:24,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:24:24,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:24:24,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:24:24,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:24:24,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:24:24,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:24:24,756 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:24:24,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:24:24,757 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:24:24,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:24:24,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:24:24,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:24:24,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:24:24,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:24:24,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:24:24,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:24:24,759 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:24:24,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:24:24,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:24:24,760 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:24:24,760 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:24:24,760 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_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dba22d6df3d4e3652cbc5549e3bb451cd645bea6f6419ad67cf157d39a1c2871 [2021-11-25 18:24:25,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:24:25,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:24:25,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:24:25,043 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:24:25,044 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:24:25,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i [2021-11-25 18:24:25,150 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/data/a62b75344/4b097edccb164cd6900613a86a75f068/FLAG3b2c52c68 [2021-11-25 18:24:25,635 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:24:25,636 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i [2021-11-25 18:24:25,651 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/data/a62b75344/4b097edccb164cd6900613a86a75f068/FLAG3b2c52c68 [2021-11-25 18:24:26,040 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/data/a62b75344/4b097edccb164cd6900613a86a75f068 [2021-11-25 18:24:26,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:24:26,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:24:26,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:24:26,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:24:26,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:24:26,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:24:26" (1/1) ... [2021-11-25 18:24:26,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c55d941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:26, skipping insertion in model container [2021-11-25 18:24:26,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:24:26" (1/1) ... [2021-11-25 18:24:26,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:24:26,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:24:26,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i[948,961] [2021-11-25 18:24:26,263 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1792) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:235) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1434) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:730) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1385) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1069) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1456) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:595) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 18:24:26,268 INFO L158 Benchmark]: Toolchain (without parser) took 221.56ms. Allocated memory is still 107.0MB. Free memory was 72.5MB in the beginning and 83.2MB in the end (delta: -10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 18:24:26,269 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory was 59.6MB in the beginning and 59.6MB in the end (delta: 42.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:24:26,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.52ms. Allocated memory is still 107.0MB. Free memory was 72.3MB in the beginning and 83.2MB in the end (delta: -10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 18:24:26,272 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory was 59.6MB in the beginning and 59.6MB in the end (delta: 42.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.52ms. Allocated memory is still 107.0MB. Free memory was 72.3MB in the beginning and 83.2MB in the end (delta: -10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7 --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 dba22d6df3d4e3652cbc5549e3bb451cd645bea6f6419ad67cf157d39a1c2871 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:24:28,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:24:28,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:24:28,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:24:28,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:24:28,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:24:28,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:24:28,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:24:28,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:24:28,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:24:28,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:24:28,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:24:28,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:24:28,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:24:28,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:24:28,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:24:28,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:24:28,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:24:28,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:24:28,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:24:28,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:24:28,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:24:28,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:24:28,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:24:28,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:24:28,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:24:28,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:24:28,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:24:28,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:24:28,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:24:28,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:24:28,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:24:28,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:24:28,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:24:28,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:24:28,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:24:28,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:24:28,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:24:28,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:24:28,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:24:28,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:24:28,573 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-25 18:24:28,623 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:24:28,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:24:28,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:24:28,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:24:28,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:24:28,625 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:24:28,625 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:24:28,625 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:24:28,626 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:24:28,626 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:24:28,627 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:24:28,627 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:24:28,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:24:28,629 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:24:28,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:24:28,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:24:28,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:24:28,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:24:28,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:24:28,630 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 18:24:28,630 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-25 18:24:28,630 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-25 18:24:28,631 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:24:28,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:24:28,631 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:24:28,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:24:28,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:24:28,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-25 18:24:28,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:24:28,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:24:28,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:24:28,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:24:28,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:24:28,633 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-25 18:24:28,634 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-25 18:24:28,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:24:28,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:24:28,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:24:28,635 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_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dba22d6df3d4e3652cbc5549e3bb451cd645bea6f6419ad67cf157d39a1c2871 [2021-11-25 18:24:29,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:24:29,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:24:29,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:24:29,040 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:24:29,040 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:24:29,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i [2021-11-25 18:24:29,109 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/data/efe4f6a5b/feb8c00415f1466ea5b48a721cd042d5/FLAGfb4eccd5a [2021-11-25 18:24:29,601 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:24:29,601 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i [2021-11-25 18:24:29,615 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/data/efe4f6a5b/feb8c00415f1466ea5b48a721cd042d5/FLAGfb4eccd5a [2021-11-25 18:24:29,949 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/data/efe4f6a5b/feb8c00415f1466ea5b48a721cd042d5 [2021-11-25 18:24:29,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:24:29,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:24:29,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:24:29,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:24:29,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:24:29,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:24:29" (1/1) ... [2021-11-25 18:24:29,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c108ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:29, skipping insertion in model container [2021-11-25 18:24:29,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:24:29" (1/1) ... [2021-11-25 18:24:29,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:24:29,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:24:30,122 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i[948,961] [2021-11-25 18:24:30,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:24:30,181 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:24:30,212 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i[948,961] [2021-11-25 18:24:30,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:24:30,253 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:24:30,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:30 WrapperNode [2021-11-25 18:24:30,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:24:30,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:24:30,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:24:30,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:24:30,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:30" (1/1) ... [2021-11-25 18:24:30,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:30" (1/1) ... [2021-11-25 18:24:30,335 INFO L137 Inliner]: procedures = 18, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2021-11-25 18:24:30,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:24:30,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:24:30,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:24:30,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:24:30,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:30" (1/1) ... [2021-11-25 18:24:30,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:30" (1/1) ... [2021-11-25 18:24:30,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:30" (1/1) ... [2021-11-25 18:24:30,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:30" (1/1) ... [2021-11-25 18:24:30,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:30" (1/1) ... [2021-11-25 18:24:30,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:30" (1/1) ... [2021-11-25 18:24:30,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:30" (1/1) ... [2021-11-25 18:24:30,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:24:30,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:24:30,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:24:30,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:24:30,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:30" (1/1) ... [2021-11-25 18:24:30,411 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:24:30,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:24:30,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:24:30,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:24:30,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:24:30,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-25 18:24:30,475 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 18:24:30,475 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 18:24:30,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:24:30,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:24:30,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 18:24:30,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 18:24:30,552 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:24:30,553 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:24:33,386 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:24:33,407 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:24:33,407 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 18:24:33,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:24:33 BoogieIcfgContainer [2021-11-25 18:24:33,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:24:33,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:24:33,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:24:33,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:24:33,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:24:29" (1/3) ... [2021-11-25 18:24:33,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d6f996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:24:33, skipping insertion in model container [2021-11-25 18:24:33,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:30" (2/3) ... [2021-11-25 18:24:33,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d6f996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:24:33, skipping insertion in model container [2021-11-25 18:24:33,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:24:33" (3/3) ... [2021-11-25 18:24:33,429 INFO L111 eAbstractionObserver]: Analyzing ICFG knuth_valuebound5.i [2021-11-25 18:24:33,434 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:24:33,434 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:24:33,502 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:24:33,510 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 [2021-11-25 18:24:33,510 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:24:33,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:24:33,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-25 18:24:33,531 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:24:33,532 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:24:33,533 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:24:33,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:24:33,538 INFO L85 PathProgramCache]: Analyzing trace with hash 919095715, now seen corresponding path program 1 times [2021-11-25 18:24:33,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 18:24:33,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248364886] [2021-11-25 18:24:33,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:24:33,552 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 18:24:33,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 18:24:33,559 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 18:24:33,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-25 18:24:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:24:33,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-25 18:24:33,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:24:34,372 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-25 18:24:34,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:24:34,373 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 18:24:34,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248364886] [2021-11-25 18:24:34,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248364886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:24:34,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:24:34,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:24:34,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62800426] [2021-11-25 18:24:34,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:24:34,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 18:24:34,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 18:24:34,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 18:24:34,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:24:34,407 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 18:24:34,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:24:34,429 INFO L93 Difference]: Finished difference Result 59 states and 92 transitions. [2021-11-25 18:24:34,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 18:24:34,431 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2021-11-25 18:24:34,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:24:34,438 INFO L225 Difference]: With dead ends: 59 [2021-11-25 18:24:34,439 INFO L226 Difference]: Without dead ends: 27 [2021-11-25 18:24:34,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:24:34,445 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:24:34,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:24:34,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-25 18:24:34,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-25 18:24:34,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:24:34,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2021-11-25 18:24:34,482 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 29 [2021-11-25 18:24:34,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:24:34,483 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-11-25 18:24:34,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 18:24:34,484 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2021-11-25 18:24:34,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-25 18:24:34,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:24:34,486 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:24:34,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:24:34,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 18:24:34,689 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:24:34,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:24:34,690 INFO L85 PathProgramCache]: Analyzing trace with hash -960358297, now seen corresponding path program 1 times [2021-11-25 18:24:34,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 18:24:34,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684104112] [2021-11-25 18:24:34,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:24:34,692 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 18:24:34,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 18:24:34,711 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 18:24:34,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-25 18:24:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:24:35,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-25 18:24:35,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:24:40,554 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 18:24:40,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:24:47,749 WARN L860 $PredicateComparison]: unable to prove that (= (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv8 32) .cse3) (bvmul (_ bv4 32) (bvmul .cse1 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul .cse0 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|))))) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|)) is different from true [2021-11-25 18:24:56,631 WARN L860 $PredicateComparison]: unable to prove that (or (not (bvugt |c_ULTIMATE.start_main_~a~0#1| (_ bv2 32))) (= (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv8 32) .cse3) (bvmul (_ bv4 32) (bvmul .cse1 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul .cse0 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|))))) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|))) is different from true [2021-11-25 18:25:09,070 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (= (let ((.cse1 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv4294967294 32)))) (let ((.cse0 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))) (.cse3 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1))) (bvadd (bvmul (_ bv4 32) (bvmul .cse0 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv8 32) .cse3) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5|)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv2 32))))) is different from true [2021-11-25 18:25:32,200 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (= (let ((.cse1 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv4294967294 32)))) (let ((.cse0 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))) (.cse3 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1))) (bvadd (bvmul (_ bv4 32) (bvmul .cse0 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv8 32) .cse3) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5|)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv2 32)))) (= c_assume_abort_if_not_~cond (_ bv0 32))) is different from true [2021-11-25 18:25:53,410 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (or (not (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv2 32))) (= (let ((.cse2 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvurem |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|)) (.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv8 32) .cse3) (bvmul (_ bv4 32) (bvmul .cse1 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul .cse0 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|))))) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|)) (not (bvule |ULTIMATE.start_main_~a~0#1| (_ bv5 32))))) is different from true [2021-11-25 18:25:53,411 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 18:25:53,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684104112] [2021-11-25 18:25:53,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684104112] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:25:53,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1283098201] [2021-11-25 18:25:53,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:25:53,414 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 18:25:53,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 18:25:53,417 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 18:25:53,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-11-25 18:25:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:25:59,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-25 18:25:59,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:26:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 18:26:02,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:26:24,978 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ BitVec 32))) (or (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ bv2 32)) (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11|) (let ((.cse3 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ bv4294967294 32)))) (let ((.cse1 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| .cse3)) (.cse2 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|))) (.cse0 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|))) (bvadd (bvmul (_ bv8 32) .cse0) (bvneg (bvmul (bvadd (bvmul .cse1 (_ bv8 32)) (bvmul .cse2 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|)) (bvmul (_ bv4 32) (bvmul .cse1 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|)) (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| .cse3) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|)) (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|)) (bvneg (bvmul (bvmul .cse0 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|))))))))) is different from true [2021-11-25 18:26:48,033 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ BitVec 32))) (or (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ bv2 32)) (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11|) (let ((.cse3 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ bv4294967294 32)))) (let ((.cse1 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| .cse3)) (.cse2 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|))) (.cse0 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|))) (bvadd (bvmul (_ bv8 32) .cse0) (bvneg (bvmul (bvadd (bvmul .cse1 (_ bv8 32)) (bvmul .cse2 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|)) (bvmul (_ bv4 32) (bvmul .cse1 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|)) (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| .cse3) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|)) (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|)) (bvneg (bvmul (bvmul .cse0 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|)))))))) (= c_assume_abort_if_not_~cond (_ bv0 32))) is different from true [2021-11-25 18:27:07,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1283098201] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:27:07,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717755676] [2021-11-25 18:27:07,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:27:07,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:27:07,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:27:07,557 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:27:07,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 18:27:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:27:10,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-25 18:27:10,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:27:13,730 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:27:13,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:27:13,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717755676] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:27:13,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:27:13,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10, 10] total 10 [2021-11-25 18:27:13,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599283959] [2021-11-25 18:27:13,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:27:13,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 18:27:13,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 18:27:13,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 18:27:13,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=133, Unknown=7, NotChecked=196, Total=380 [2021-11-25 18:27:13,737 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 7 states have internal predecessors, (11), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-25 18:27:17,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:23,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:27:23,137 INFO L93 Difference]: Finished difference Result 44 states and 59 transitions. [2021-11-25 18:27:23,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 18:27:23,150 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 7 states have internal predecessors, (11), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2021-11-25 18:27:23,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:27:23,152 INFO L225 Difference]: With dead ends: 44 [2021-11-25 18:27:23,152 INFO L226 Difference]: Without dead ends: 42 [2021-11-25 18:27:23,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=54, Invalid=177, Unknown=7, NotChecked=224, Total=462 [2021-11-25 18:27:23,155 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 23 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:27:23,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 122 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 148 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2021-11-25 18:27:23,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-11-25 18:27:23,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2021-11-25 18:27:23,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.2) internal successors, (24), 21 states have internal predecessors, (24), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-25 18:27:23,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2021-11-25 18:27:23,170 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 29 [2021-11-25 18:27:23,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:27:23,171 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2021-11-25 18:27:23,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 7 states have internal predecessors, (11), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-25 18:27:23,171 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2021-11-25 18:27:23,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-25 18:27:23,173 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:27:23,173 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:27:23,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:27:23,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 18:27:23,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2021-11-25 18:27:23,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt [2021-11-25 18:27:23,802 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:27:23,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:27:23,802 INFO L85 PathProgramCache]: Analyzing trace with hash -603494572, now seen corresponding path program 1 times [2021-11-25 18:27:23,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 18:27:23,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794338375] [2021-11-25 18:27:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:27:23,803 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 18:27:23,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 18:27:23,805 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 18:27:23,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-25 18:27:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:27:24,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 18:27:24,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:27:24,545 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:27:24,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:27:24,545 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 18:27:24,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794338375] [2021-11-25 18:27:24,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794338375] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:27:24,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:27:24,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:27:24,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194091796] [2021-11-25 18:27:24,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:27:24,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:27:24,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 18:27:24,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:27:24,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:27:24,550 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-25 18:27:25,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:27:25,260 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2021-11-25 18:27:25,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:27:25,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2021-11-25 18:27:25,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:27:25,270 INFO L225 Difference]: With dead ends: 46 [2021-11-25 18:27:25,270 INFO L226 Difference]: Without dead ends: 44 [2021-11-25 18:27:25,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:27:25,272 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 8 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:27:25,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 141 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 18:27:25,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-25 18:27:25,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2021-11-25 18:27:25,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-25 18:27:25,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2021-11-25 18:27:25,286 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 34 [2021-11-25 18:27:25,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:27:25,287 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2021-11-25 18:27:25,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-25 18:27:25,287 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2021-11-25 18:27:25,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-25 18:27:25,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:27:25,289 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:27:25,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-25 18:27:25,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 18:27:25,512 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:27:25,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:27:25,513 INFO L85 PathProgramCache]: Analyzing trace with hash -127108025, now seen corresponding path program 1 times [2021-11-25 18:27:25,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 18:27:25,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352363466] [2021-11-25 18:27:25,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:27:25,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 18:27:25,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 18:27:25,515 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 18:27:25,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-25 18:27:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:27:26,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-25 18:27:26,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:27:35,387 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-25 18:27:35,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:27:59,768 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse7 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse7)) (.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse5 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (let ((.cse2 (bvmul (_ bv4 32) (bvmul (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse7) |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvmul (_ bv8 32) .cse5)) (.cse4 (bvmul (_ bv4 32) (bvmul .cse1 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse6 (bvmul (_ bv4 32) (bvmul .cse0 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|)))) (or (not (= (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |c_ULTIMATE.start_main_~a~0#1|)) .cse2 .cse3 .cse4 (bvneg (bvmul (bvmul .cse5 (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|)) .cse6) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|))) (= (bvadd (bvneg (bvmul |c_ULTIMATE.start_main_~n~0#1| (_ bv8 32))) (bvneg (bvmul (bvmul |c_ULTIMATE.start_main_~a~0#1| (_ bv2 32)) (bvadd (bvmul .cse0 (_ bv4 32)) (bvmul .cse1 (_ bv4 32))))) (bvneg (bvmul (bvmul |c_ULTIMATE.start_main_~a~0#1| (_ bv4 32)) .cse5)) .cse2 .cse3 .cse4 .cse6) (_ bv0 32)))))) is different from true [2021-11-25 18:28:13,112 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse7 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse7)) (.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse5 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (let ((.cse2 (bvmul (_ bv4 32) (bvmul (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse7) |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvmul (_ bv8 32) .cse5)) (.cse4 (bvmul (_ bv4 32) (bvmul .cse1 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse6 (bvmul (_ bv4 32) (bvmul .cse0 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|)))) (or (not (bvugt |c_ULTIMATE.start_main_~a~0#1| (_ bv2 32))) (not (= (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |c_ULTIMATE.start_main_~a~0#1|)) .cse2 .cse3 .cse4 (bvneg (bvmul (bvmul .cse5 (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|)) .cse6) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|))) (= (bvadd (bvneg (bvmul |c_ULTIMATE.start_main_~n~0#1| (_ bv8 32))) (bvneg (bvmul (bvmul |c_ULTIMATE.start_main_~a~0#1| (_ bv2 32)) (bvadd (bvmul .cse0 (_ bv4 32)) (bvmul .cse1 (_ bv4 32))))) (bvneg (bvmul (bvmul |c_ULTIMATE.start_main_~a~0#1| (_ bv4 32)) .cse5)) .cse2 .cse3 .cse4 .cse6) (_ bv0 32)))))) is different from true [2021-11-25 18:28:33,996 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| (_ BitVec 32))) (let ((.cse7 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) (let ((.cse1 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| .cse7)) (.cse4 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|)) (.cse0 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|)))) (let ((.cse2 (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| .cse0))) (.cse3 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| .cse7) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) (.cse5 (bvmul (_ bv8 32) .cse4)) (.cse6 (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| .cse1)))) (or (= (_ bv0 32) (bvadd (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| (_ bv2 32)) (bvadd (bvmul .cse0 (_ bv4 32)) (bvmul .cse1 (_ bv4 32))))) (bvneg (bvmul |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| (_ bv8 32))) .cse2 .cse3 (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| (_ bv4 32)) .cse4)) .cse5 .cse6)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| (_ bv2 32)) (not (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25|) (bvadd .cse2 .cse3 (bvneg (bvmul (bvadd (bvmul .cse1 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|)) (bvneg (bvmul (bvmul .cse4 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|)) .cse5 .cse6))))))))) is different from true [2021-11-25 18:29:13,884 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| (_ BitVec 32))) (let ((.cse7 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) (let ((.cse1 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| .cse7)) (.cse4 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|)) (.cse0 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|)))) (let ((.cse2 (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| .cse0))) (.cse3 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| .cse7) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) (.cse5 (bvmul (_ bv8 32) .cse4)) (.cse6 (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| .cse1)))) (or (= (_ bv0 32) (bvadd (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| (_ bv2 32)) (bvadd (bvmul .cse0 (_ bv4 32)) (bvmul .cse1 (_ bv4 32))))) (bvneg (bvmul |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| (_ bv8 32))) .cse2 .cse3 (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| (_ bv4 32)) .cse4)) .cse5 .cse6)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| (_ bv2 32)) (not (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25|) (bvadd .cse2 .cse3 (bvneg (bvmul (bvadd (bvmul .cse1 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|)) (bvneg (bvmul (bvmul .cse4 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|)) .cse5 .cse6)))))))) (= c_assume_abort_if_not_~cond (_ bv0 32))) is different from true [2021-11-25 18:29:43,568 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (let ((.cse7 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse7)) (.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse5 (bvurem |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|))) (let ((.cse2 (bvmul (_ bv4 32) (bvmul (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse7) |ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvmul (_ bv8 32) .cse5)) (.cse4 (bvmul (_ bv4 32) (bvmul .cse1 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse6 (bvmul (_ bv4 32) (bvmul .cse0 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|)))) (or (not (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv2 32))) (not (= (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |ULTIMATE.start_main_~a~0#1|)) .cse2 .cse3 .cse4 (bvneg (bvmul (bvmul .cse5 (_ bv4 32)) |ULTIMATE.start_main_~a~0#1|)) .cse6) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|))) (= (bvadd (bvneg (bvmul |c_ULTIMATE.start_main_~n~0#1| (_ bv8 32))) (bvneg (bvmul (bvmul |ULTIMATE.start_main_~a~0#1| (_ bv2 32)) (bvadd (bvmul .cse0 (_ bv4 32)) (bvmul .cse1 (_ bv4 32))))) (bvneg (bvmul (bvmul |ULTIMATE.start_main_~a~0#1| (_ bv4 32)) .cse5)) .cse2 .cse3 .cse4 .cse6) (_ bv0 32)) (not (bvule |ULTIMATE.start_main_~a~0#1| (_ bv5 32)))))))) is different from true [2021-11-25 18:29:43,572 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 18:29:43,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352363466] [2021-11-25 18:29:43,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352363466] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:29:43,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [260239360] [2021-11-25 18:29:43,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:29:43,573 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 18:29:43,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 18:29:43,576 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 18:29:43,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-25 18:29:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:29:50,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-25 18:29:50,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:29:56,783 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-25 18:29:56,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:30:40,190 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| (_ BitVec 32))) (let ((.cse7 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (let ((.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|)) (.cse5 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (.cse6 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| .cse7))) (let ((.cse0 (bvmul (_ bv4 32) (bvmul .cse6 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (.cse2 (bvmul (_ bv4 32) (bvmul .cse5 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (.cse3 (bvmul (_ bv8 32) .cse1)) (.cse4 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| .cse7) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|)))) (or (not (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35|) (bvadd .cse0 (bvneg (bvmul (bvmul .cse1 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|)) .cse2 .cse3 .cse4 (bvneg (bvmul (bvadd (bvmul .cse5 (_ bv8 32)) (bvmul .cse6 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))))) (= (bvadd .cse0 (bvneg (bvmul |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| (_ bv8 32))) (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| (_ bv4 32)) .cse1)) .cse2 .cse3 (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| (_ bv2 32)) (bvadd (bvmul .cse5 (_ bv4 32)) (bvmul .cse6 (_ bv4 32))))) .cse4) (_ bv0 32)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| (_ bv2 32)))))))) is different from true [2021-11-25 18:31:20,825 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| (_ BitVec 32))) (let ((.cse7 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (let ((.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|)) (.cse5 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (.cse6 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| .cse7))) (let ((.cse0 (bvmul (_ bv4 32) (bvmul .cse6 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (.cse2 (bvmul (_ bv4 32) (bvmul .cse5 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (.cse3 (bvmul (_ bv8 32) .cse1)) (.cse4 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| .cse7) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|)))) (or (not (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35|) (bvadd .cse0 (bvneg (bvmul (bvmul .cse1 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|)) .cse2 .cse3 .cse4 (bvneg (bvmul (bvadd (bvmul .cse5 (_ bv8 32)) (bvmul .cse6 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))))) (= (bvadd .cse0 (bvneg (bvmul |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| (_ bv8 32))) (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| (_ bv4 32)) .cse1)) .cse2 .cse3 (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| (_ bv2 32)) (bvadd (bvmul .cse5 (_ bv4 32)) (bvmul .cse6 (_ bv4 32))))) .cse4) (_ bv0 32)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| (_ bv2 32))))))) (= c_assume_abort_if_not_~cond (_ bv0 32))) is different from true [2021-11-25 18:31:48,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [260239360] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:31:48,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879490746] [2021-11-25 18:31:48,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:31:48,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:31:48,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:31:48,481 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:31:48,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 18:31:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:31:51,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-25 18:31:51,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:32:02,543 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-25 18:32:02,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:32:47,554 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| (_ BitVec 32))) (let ((.cse7 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))) (let ((.cse6 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|)) (.cse4 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| .cse7)) (.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|)))) (let ((.cse0 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| .cse7) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))) (.cse1 (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))) (.cse2 (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| .cse4))) (.cse5 (bvmul (_ bv8 32) .cse6))) (or (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| (_ bv2 32)) (not (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45|) (bvadd .cse0 .cse1 .cse2 (bvneg (bvmul (bvadd (bvmul .cse3 (_ bv8 32)) (bvmul .cse4 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|)) .cse5 (bvneg (bvmul (bvmul .cse6 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))))) (= (bvadd (bvneg (bvmul |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| (_ bv8 32))) (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| (_ bv2 32)) (bvadd (bvmul .cse4 (_ bv4 32)) (bvmul .cse3 (_ bv4 32))))) .cse0 (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| (_ bv4 32)) .cse6)) .cse1 .cse2 .cse5) (_ bv0 32)))))))) is different from true [2021-11-25 18:33:27,476 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| (_ BitVec 32))) (let ((.cse7 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))) (let ((.cse6 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|)) (.cse4 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| .cse7)) (.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|)))) (let ((.cse0 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| .cse7) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))) (.cse1 (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))) (.cse2 (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| .cse4))) (.cse5 (bvmul (_ bv8 32) .cse6))) (or (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| (_ bv2 32)) (not (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45|) (bvadd .cse0 .cse1 .cse2 (bvneg (bvmul (bvadd (bvmul .cse3 (_ bv8 32)) (bvmul .cse4 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|)) .cse5 (bvneg (bvmul (bvmul .cse6 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))))) (= (bvadd (bvneg (bvmul |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| (_ bv8 32))) (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| (_ bv2 32)) (bvadd (bvmul .cse4 (_ bv4 32)) (bvmul .cse3 (_ bv4 32))))) .cse0 (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| (_ bv4 32)) .cse6)) .cse1 .cse2 .cse5) (_ bv0 32))))))) (= c_assume_abort_if_not_~cond (_ bv0 32))) is different from true [2021-11-25 18:33:44,978 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse7 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse7)) (.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse5 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (let ((.cse2 (bvmul (_ bv4 32) (bvmul (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse7) |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvmul (_ bv8 32) .cse5)) (.cse4 (bvmul (_ bv4 32) (bvmul .cse1 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse6 (bvmul (_ bv4 32) (bvmul .cse0 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|)))) (or (not (bvugt |c_ULTIMATE.start_main_~a~0#1| (_ bv2 32))) (not (= (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |c_ULTIMATE.start_main_~a~0#1|)) .cse2 .cse3 .cse4 (bvneg (bvmul (bvmul .cse5 (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|)) .cse6) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|))) (= (bvadd (bvneg (bvmul |c_ULTIMATE.start_main_~n~0#1| (_ bv8 32))) (bvneg (bvmul (bvmul |c_ULTIMATE.start_main_~a~0#1| (_ bv2 32)) (bvadd (bvmul .cse0 (_ bv4 32)) (bvmul .cse1 (_ bv4 32))))) (bvneg (bvmul (bvmul |c_ULTIMATE.start_main_~a~0#1| (_ bv4 32)) .cse5)) .cse2 .cse3 .cse4 .cse6) (_ bv0 32)) (not (bvult |c_ULTIMATE.start_main_~n~0#1| (_ bv536870911 32))))))) is different from true [2021-11-25 18:34:24,986 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| (_ BitVec 32))) (let ((.cse7 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (let ((.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|)) (.cse5 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse6 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| .cse7))) (let ((.cse0 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| .cse7) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse2 (bvmul (_ bv4 32) (bvmul .cse6 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse3 (bvmul (_ bv4 32) (bvmul .cse5 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse4 (bvmul (_ bv8 32) .cse1))) (or (bvult |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| (_ bv536870911 32)) (not (= (bvadd .cse0 (bvneg (bvmul (bvmul .cse1 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|)) .cse2 .cse3 .cse4 (bvneg (bvmul (bvadd (bvmul .cse5 (_ bv8 32)) (bvmul .cse6 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46|))) (not (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| (_ bv2 32))) (= (bvadd (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| (_ bv2 32)) (bvadd (bvmul .cse6 (_ bv4 32)) (bvmul .cse5 (_ bv4 32))))) (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| (_ bv4 32)) .cse1)) .cse0 .cse2 .cse3 .cse4 (bvneg (bvmul |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| (_ bv8 32)))) (_ bv0 32)))))))) is different from true [2021-11-25 18:35:42,267 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| (_ BitVec 32))) (let ((.cse7 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (let ((.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|)) (.cse5 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse6 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| .cse7))) (let ((.cse0 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| .cse7) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse2 (bvmul (_ bv4 32) (bvmul .cse6 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse3 (bvmul (_ bv4 32) (bvmul .cse5 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse4 (bvmul (_ bv8 32) .cse1))) (or (bvult |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| (_ bv536870911 32)) (not (= (bvadd .cse0 (bvneg (bvmul (bvmul .cse1 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|)) .cse2 .cse3 .cse4 (bvneg (bvmul (bvadd (bvmul .cse5 (_ bv8 32)) (bvmul .cse6 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46|))) (not (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| (_ bv2 32))) (= (bvadd (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| (_ bv2 32)) (bvadd (bvmul .cse6 (_ bv4 32)) (bvmul .cse5 (_ bv4 32))))) (bvneg (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| (_ bv4 32)) .cse1)) .cse0 .cse2 .cse3 .cse4 (bvneg (bvmul |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| (_ bv8 32)))) (_ bv0 32))))))) (= c_assume_abort_if_not_~cond (_ bv0 32))) is different from true [2021-11-25 18:36:01,684 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (let ((.cse7 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse7)) (.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse5 (bvurem |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|))) (let ((.cse2 (bvmul (_ bv4 32) (bvmul (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse7) |ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvmul (_ bv8 32) .cse5)) (.cse4 (bvmul (_ bv4 32) (bvmul .cse1 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse6 (bvmul (_ bv4 32) (bvmul .cse0 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|)))) (or (not (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv2 32))) (not (= (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |ULTIMATE.start_main_~a~0#1|)) .cse2 .cse3 .cse4 (bvneg (bvmul (bvmul .cse5 (_ bv4 32)) |ULTIMATE.start_main_~a~0#1|)) .cse6) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|))) (= (bvadd (bvneg (bvmul |c_ULTIMATE.start_main_~n~0#1| (_ bv8 32))) (bvneg (bvmul (bvmul |ULTIMATE.start_main_~a~0#1| (_ bv2 32)) (bvadd (bvmul .cse0 (_ bv4 32)) (bvmul .cse1 (_ bv4 32))))) (bvneg (bvmul (bvmul |ULTIMATE.start_main_~a~0#1| (_ bv4 32)) .cse5)) .cse2 .cse3 .cse4 .cse6) (_ bv0 32)) (not (bvule |ULTIMATE.start_main_~a~0#1| (_ bv5 32)))))))) (not (bvult |c_ULTIMATE.start_main_~n~0#1| (_ bv536870911 32)))) is different from true [2021-11-25 18:36:01,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879490746] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:36:01,686 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:36:01,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 12 [2021-11-25 18:36:01,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068930017] [2021-11-25 18:36:01,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:36:01,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 18:36:01,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 18:36:01,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 18:36:01,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=210, Unknown=13, NotChecked=520, Total=812 [2021-11-25 18:36:01,689 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2021-11-25 18:36:07,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 18:36:17,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:36:17,384 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2021-11-25 18:36:17,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 18:36:17,399 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 39 [2021-11-25 18:36:17,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:36:17,401 INFO L225 Difference]: With dead ends: 52 [2021-11-25 18:36:17,401 INFO L226 Difference]: Without dead ends: 50 [2021-11-25 18:36:17,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 43.7s TimeCoverageRelationStatistics Valid=88, Invalid=293, Unknown=13, NotChecked=598, Total=992 [2021-11-25 18:36:17,404 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 36 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:36:17,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 114 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 198 Invalid, 1 Unknown, 0 Unchecked, 13.5s Time] [2021-11-25 18:36:17,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-25 18:36:17,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2021-11-25 18:36:17,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 27 states have internal predecessors, (30), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-25 18:36:17,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2021-11-25 18:36:17,417 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 39 [2021-11-25 18:36:17,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:36:17,418 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2021-11-25 18:36:17,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2021-11-25 18:36:17,418 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2021-11-25 18:36:17,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-25 18:36:17,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:36:17,421 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:36:17,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-25 18:36:17,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-25 18:36:17,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-25 18:36:18,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt [2021-11-25 18:36:18,026 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:36:18,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:36:18,027 INFO L85 PathProgramCache]: Analyzing trace with hash -114260771, now seen corresponding path program 1 times [2021-11-25 18:36:18,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 18:36:18,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470522809] [2021-11-25 18:36:18,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:18,028 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 18:36:18,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 18:36:18,030 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 18:36:18,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96217134-6b02-42ab-94bc-965438916abb/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-25 18:36:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:36:18,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-25 18:36:18,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:36:26,755 WARN L227 SmtUtils]: Spent 5.85s on a formula simplification that was a NOOP. DAG size: 7 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:36:32,389 WARN L227 SmtUtils]: Spent 5.63s on a formula simplification that was a NOOP. DAG size: 13 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:36:38,063 WARN L227 SmtUtils]: Spent 5.67s on a formula simplification that was a NOOP. DAG size: 5 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:36:48,640 WARN L227 SmtUtils]: Spent 5.63s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:36:51,101 WARN L838 $PredicateComparison]: unable to prove that (and (bvule |c_ULTIMATE.start_main_~d~0#1| (_ bv5 32)) (exists ((|ULTIMATE.start_main_~n~0#1| (_ BitVec 32))) (let ((.cse0 (bvadd |c_ULTIMATE.start_main_~d~0#1| (_ bv4294967294 32)))) (and (= (bvurem |ULTIMATE.start_main_~n~0#1| .cse0) |c_ULTIMATE.start_main_~k~0#1|) (= (bvadd (bvmul (_ bv4 32) (bvudiv |ULTIMATE.start_main_~n~0#1| .cse0)) (bvmul (_ bv4 32) (bvneg (bvudiv |ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~d~0#1|)))) |c_ULTIMATE.start_main_~q~0#1|) (= |c_ULTIMATE.start_main_~r~0#1| (bvurem |ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~d~0#1|)) (= |c_ULTIMATE.start_main_~s~0#1| ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt roundNearestTiesToEven ((_ to_fp_unsigned 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~n~0#1|)))) (bvule |ULTIMATE.start_main_~n~0#1| (_ bv5 32))))) (bvugt |c_ULTIMATE.start_main_~d~0#1| (_ bv2 32))) is different from false [2021-11-25 18:36:56,829 WARN L227 SmtUtils]: Spent 5.64s on a formula simplification that was a NOOP. DAG size: 7 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:37:02,544 WARN L227 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 13 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:37:08,249 WARN L227 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 5 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:37:13,318 WARN L227 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:37:18,960 WARN L227 SmtUtils]: Spent 5.64s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:37:24,715 WARN L227 SmtUtils]: Spent 5.64s on a formula simplification that was a NOOP. DAG size: 7 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:37:30,319 WARN L227 SmtUtils]: Spent 5.60s on a formula simplification that was a NOOP. DAG size: 13 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:37:35,969 WARN L227 SmtUtils]: Spent 5.65s on a formula simplification that was a NOOP. DAG size: 5 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:37:40,985 WARN L227 SmtUtils]: Spent 5.02s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:37:46,642 WARN L227 SmtUtils]: Spent 5.66s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:37:52,377 WARN L227 SmtUtils]: Spent 5.62s on a formula simplification that was a NOOP. DAG size: 7 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:37:58,014 WARN L227 SmtUtils]: Spent 5.64s on a formula simplification that was a NOOP. DAG size: 13 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:38:03,684 WARN L227 SmtUtils]: Spent 5.67s on a formula simplification that was a NOOP. DAG size: 5 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:38:08,708 WARN L227 SmtUtils]: Spent 5.02s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:38:14,359 WARN L227 SmtUtils]: Spent 5.65s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:38:20,124 WARN L227 SmtUtils]: Spent 5.64s on a formula simplification that was a NOOP. DAG size: 7 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:38:25,809 WARN L227 SmtUtils]: Spent 5.68s on a formula simplification that was a NOOP. DAG size: 13 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:38:31,487 WARN L227 SmtUtils]: Spent 5.68s on a formula simplification that was a NOOP. DAG size: 5 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:38:36,516 WARN L227 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:38:42,188 WARN L227 SmtUtils]: Spent 5.67s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:38:47,937 WARN L227 SmtUtils]: Spent 5.65s on a formula simplification that was a NOOP. DAG size: 7 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:38:53,628 WARN L227 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 13 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)