./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0874.c --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_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/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_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0874.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/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_98d04ee3-d4f9-40b2-ba05-267a71765cd5/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 0982eedb9d6e93530fad43cd68d66909a89a476f3c25408c32fb45fa977665ac --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:25:53,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:25:53,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:25:53,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:25:53,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:25:53,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:25:53,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:25:53,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:25:53,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:25:53,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:25:53,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:25:53,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:25:53,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:25:53,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:25:53,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:25:53,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:25:53,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:25:53,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:25:53,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:25:53,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:25:53,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:25:53,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:25:53,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:25:53,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:25:53,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:25:53,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:25:53,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:25:53,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:25:53,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:25:53,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:25:53,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:25:53,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:25:53,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:25:53,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:25:53,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:25:53,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:25:53,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:25:53,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:25:53,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:25:53,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:25:53,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:25:53,468 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 20:25:53,494 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:25:53,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:25:53,494 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:25:53,495 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:25:53,495 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:25:53,496 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:25:53,496 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:25:53,496 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:25:53,496 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:25:53,497 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:25:53,497 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:25:53,497 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:25:53,497 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:25:53,498 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:25:53,498 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:25:53,498 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:25:53,498 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:25:53,499 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:25:53,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:25:53,500 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:25:53,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:25:53,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:25:53,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:25:53,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:25:53,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:25:53,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:25:53,501 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:25:53,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:25:53,502 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:25:53,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:25:53,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:25:53,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:25:53,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:25:53,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:25:53,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:25:53,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:25:53,504 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:25:53,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:25:53,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:25:53,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:25:53,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:25:53,505 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_98d04ee3-d4f9-40b2-ba05-267a71765cd5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0982eedb9d6e93530fad43cd68d66909a89a476f3c25408c32fb45fa977665ac [2021-11-25 20:25:53,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:25:53,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:25:53,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:25:53,849 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:25:53,851 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:25:53,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/float-newlib/float_req_bl_0874.c [2021-11-25 20:25:53,929 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/data/4f30e043d/d60cfacefec546abaa0b2061b64ba378/FLAG68f6f5e30 [2021-11-25 20:25:54,535 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:25:54,536 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/sv-benchmarks/c/float-newlib/float_req_bl_0874.c [2021-11-25 20:25:54,551 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/data/4f30e043d/d60cfacefec546abaa0b2061b64ba378/FLAG68f6f5e30 [2021-11-25 20:25:54,842 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/data/4f30e043d/d60cfacefec546abaa0b2061b64ba378 [2021-11-25 20:25:54,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:25:54,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:25:54,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:25:54,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:25:54,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:25:54,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:25:54" (1/1) ... [2021-11-25 20:25:54,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2439d725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:54, skipping insertion in model container [2021-11-25 20:25:54,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:25:54" (1/1) ... [2021-11-25 20:25:54,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:25:54,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:25:55,185 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$50(StandardFunctionHandler.java:415) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:235) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1434) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:539) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2021) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1633) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1069) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1069) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1456) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:595) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:25:55,190 INFO L158 Benchmark]: Toolchain (without parser) took 342.60ms. Allocated memory is still 113.2MB. Free memory was 79.8MB in the beginning and 85.6MB in the end (delta: -5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 20:25:55,191 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 20:25:55,192 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.98ms. Allocated memory is still 113.2MB. Free memory was 79.6MB in the beginning and 85.6MB in the end (delta: -6.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 20:25:55,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.98ms. Allocated memory is still 113.2MB. Free memory was 79.6MB in the beginning and 85.6MB in the end (delta: -6.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/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_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0874.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/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_98d04ee3-d4f9-40b2-ba05-267a71765cd5/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 0982eedb9d6e93530fad43cd68d66909a89a476f3c25408c32fb45fa977665ac --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:25:57,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:25:57,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:25:57,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:25:57,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:25:57,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:25:57,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:25:57,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:25:57,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:25:57,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:25:57,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:25:57,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:25:57,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:25:57,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:25:57,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:25:57,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:25:57,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:25:57,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:25:57,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:25:57,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:25:57,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:25:57,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:25:57,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:25:57,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:25:57,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:25:57,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:25:57,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:25:57,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:25:57,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:25:57,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:25:57,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:25:57,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:25:57,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:25:57,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:25:57,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:25:57,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:25:57,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:25:57,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:25:57,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:25:57,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:25:57,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:25:57,610 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-25 20:25:57,649 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:25:57,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:25:57,655 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:25:57,655 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:25:57,656 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:25:57,656 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:25:57,657 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:25:57,657 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:25:57,658 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:25:57,658 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:25:57,659 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:25:57,659 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:25:57,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:25:57,661 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:25:57,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:25:57,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:25:57,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:25:57,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:25:57,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:25:57,663 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 20:25:57,663 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-25 20:25:57,663 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-25 20:25:57,663 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:25:57,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:25:57,664 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:25:57,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:25:57,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:25:57,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-25 20:25:57,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:25:57,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:25:57,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:25:57,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:25:57,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:25:57,666 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-25 20:25:57,667 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-25 20:25:57,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:25:57,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:25:57,667 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:25:57,668 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_98d04ee3-d4f9-40b2-ba05-267a71765cd5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0982eedb9d6e93530fad43cd68d66909a89a476f3c25408c32fb45fa977665ac [2021-11-25 20:25:58,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:25:58,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:25:58,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:25:58,075 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:25:58,076 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:25:58,077 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/float-newlib/float_req_bl_0874.c [2021-11-25 20:25:58,150 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/data/c5b56fc61/cc684a405e4c47e58ac0cc77cc6faf7b/FLAGadfd2f2ff [2021-11-25 20:25:58,768 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:25:58,769 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/sv-benchmarks/c/float-newlib/float_req_bl_0874.c [2021-11-25 20:25:58,780 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/data/c5b56fc61/cc684a405e4c47e58ac0cc77cc6faf7b/FLAGadfd2f2ff [2021-11-25 20:25:59,094 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/data/c5b56fc61/cc684a405e4c47e58ac0cc77cc6faf7b [2021-11-25 20:25:59,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:25:59,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:25:59,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:25:59,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:25:59,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:25:59,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:25:59" (1/1) ... [2021-11-25 20:25:59,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b2431f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:59, skipping insertion in model container [2021-11-25 20:25:59,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:25:59" (1/1) ... [2021-11-25 20:25:59,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:25:59,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:25:59,541 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_98d04ee3-d4f9-40b2-ba05-267a71765cd5/sv-benchmarks/c/float-newlib/float_req_bl_0874.c[14102,14115] [2021-11-25 20:25:59,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:25:59,581 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:25:59,700 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_98d04ee3-d4f9-40b2-ba05-267a71765cd5/sv-benchmarks/c/float-newlib/float_req_bl_0874.c[14102,14115] [2021-11-25 20:25:59,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:25:59,729 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:25:59,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:59 WrapperNode [2021-11-25 20:25:59,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:25:59,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:25:59,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:25:59,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:25:59,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:59" (1/1) ... [2021-11-25 20:25:59,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:59" (1/1) ... [2021-11-25 20:25:59,854 INFO L137 Inliner]: procedures = 26, calls = 193, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 735 [2021-11-25 20:25:59,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:25:59,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:25:59,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:25:59,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:25:59,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:59" (1/1) ... [2021-11-25 20:25:59,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:59" (1/1) ... [2021-11-25 20:25:59,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:59" (1/1) ... [2021-11-25 20:25:59,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:59" (1/1) ... [2021-11-25 20:25:59,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:59" (1/1) ... [2021-11-25 20:25:59,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:59" (1/1) ... [2021-11-25 20:25:59,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:59" (1/1) ... [2021-11-25 20:25:59,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:26:00,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:26:00,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:26:00,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:26:00,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:59" (1/1) ... [2021-11-25 20:26:00,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:26:00,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:26:00,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:26:00,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:26:00,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:26:00,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-25 20:26:00,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:26:00,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-25 20:26:00,086 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-25 20:26:00,086 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-25 20:26:00,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-25 20:26:00,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-25 20:26:00,087 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2021-11-25 20:26:00,087 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2021-11-25 20:26:00,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-25 20:26:00,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:26:00,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:26:00,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-25 20:26:00,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:26:00,328 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:26:00,329 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:26:22,473 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:26:22,481 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:26:22,482 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-25 20:26:22,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:26:22 BoogieIcfgContainer [2021-11-25 20:26:22,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:26:22,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:26:22,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:26:22,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:26:22,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:25:59" (1/3) ... [2021-11-25 20:26:22,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b87a254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:26:22, skipping insertion in model container [2021-11-25 20:26:22,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:59" (2/3) ... [2021-11-25 20:26:22,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b87a254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:26:22, skipping insertion in model container [2021-11-25 20:26:22,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:26:22" (3/3) ... [2021-11-25 20:26:22,493 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0874.c [2021-11-25 20:26:22,498 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:26:22,499 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 20:26:22,549 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:26:22,556 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 20:26:22,556 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 20:26:22,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 199 states, 190 states have (on average 1.7157894736842105) internal successors, (326), 191 states have internal predecessors, (326), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:26:22,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 20:26:22,584 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:22,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:22,585 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:26:22,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:22,591 INFO L85 PathProgramCache]: Analyzing trace with hash -2090504015, now seen corresponding path program 1 times [2021-11-25 20:26:22,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:26:22,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348518653] [2021-11-25 20:26:22,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:22,605 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:26:22,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:26:22,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:26:22,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-25 20:26:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:23,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-25 20:26:23,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:23,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:26:23,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:26:23,790 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:26:23,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348518653] [2021-11-25 20:26:23,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348518653] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:23,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:23,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:26:23,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425496325] [2021-11-25 20:26:23,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:23,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 20:26:23,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:26:23,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 20:26:23,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 20:26:23,828 INFO L87 Difference]: Start difference. First operand has 199 states, 190 states have (on average 1.7157894736842105) internal successors, (326), 191 states have internal predecessors, (326), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:26:23,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:23,874 INFO L93 Difference]: Finished difference Result 395 states and 673 transitions. [2021-11-25 20:26:23,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 20:26:23,876 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-11-25 20:26:23,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:23,887 INFO L225 Difference]: With dead ends: 395 [2021-11-25 20:26:23,887 INFO L226 Difference]: Without dead ends: 195 [2021-11-25 20:26:23,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 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 20:26:23,895 INFO L933 BasicCegarLoop]: 263 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, 263 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 20:26:23,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:26:23,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-25 20:26:23,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-25 20:26:23,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 187 states have (on average 1.3262032085561497) internal successors, (248), 187 states have internal predecessors, (248), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:26:23,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 258 transitions. [2021-11-25 20:26:23,953 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 258 transitions. Word has length 20 [2021-11-25 20:26:23,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:23,953 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 258 transitions. [2021-11-25 20:26:23,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:26:23,954 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 258 transitions. [2021-11-25 20:26:23,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-25 20:26:23,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:23,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:23,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:26:24,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:26:24,174 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:26:24,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:24,175 INFO L85 PathProgramCache]: Analyzing trace with hash -85606773, now seen corresponding path program 1 times [2021-11-25 20:26:24,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:26:24,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546879264] [2021-11-25 20:26:24,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:24,176 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:26:24,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:26:24,178 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:26:24,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-25 20:26:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:25,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 20:26:25,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:25,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:26:25,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:26:25,944 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:26:25,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546879264] [2021-11-25 20:26:25,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546879264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:25,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:25,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:26:25,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824868374] [2021-11-25 20:26:25,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:25,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:26:25,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:26:25,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:26:25,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:26:25,948 INFO L87 Difference]: Start difference. First operand 195 states and 258 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:26:25,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:25,985 INFO L93 Difference]: Finished difference Result 203 states and 265 transitions. [2021-11-25 20:26:25,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:26:25,985 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-11-25 20:26:25,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:25,989 INFO L225 Difference]: With dead ends: 203 [2021-11-25 20:26:25,989 INFO L226 Difference]: Without dead ends: 195 [2021-11-25 20:26:25,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:26:25,991 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 0 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:25,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1226 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 38 Unchecked, 0.0s Time] [2021-11-25 20:26:25,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-25 20:26:26,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-25 20:26:26,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 187 states have (on average 1.320855614973262) internal successors, (247), 187 states have internal predecessors, (247), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:26:26,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 257 transitions. [2021-11-25 20:26:26,011 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 257 transitions. Word has length 25 [2021-11-25 20:26:26,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:26,013 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 257 transitions. [2021-11-25 20:26:26,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:26:26,013 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 257 transitions. [2021-11-25 20:26:26,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 20:26:26,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:26,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:26,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:26:26,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:26:26,232 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:26:26,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:26,233 INFO L85 PathProgramCache]: Analyzing trace with hash 727300614, now seen corresponding path program 1 times [2021-11-25 20:26:26,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:26:26,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1614300071] [2021-11-25 20:26:26,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:26,234 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:26:26,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:26:26,238 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:26:26,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-25 20:26:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:27,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-25 20:26:27,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:28,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:26:28,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:26:28,100 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:26:28,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1614300071] [2021-11-25 20:26:28,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1614300071] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:28,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:28,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 20:26:28,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744227954] [2021-11-25 20:26:28,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:28,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:26:28,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:26:28,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:26:28,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:26:28,103 INFO L87 Difference]: Start difference. First operand 195 states and 257 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:26:30,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:31,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:31,070 INFO L93 Difference]: Finished difference Result 211 states and 271 transitions. [2021-11-25 20:26:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:26:31,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-11-25 20:26:31,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:31,074 INFO L225 Difference]: With dead ends: 211 [2021-11-25 20:26:31,075 INFO L226 Difference]: Without dead ends: 203 [2021-11-25 20:26:31,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:26:31,077 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 8 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:31,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 1438 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 1 Unknown, 42 Unchecked, 2.9s Time] [2021-11-25 20:26:31,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-11-25 20:26:31,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 195. [2021-11-25 20:26:31,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 187 states have (on average 1.3155080213903743) internal successors, (246), 187 states have internal predecessors, (246), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:26:31,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 256 transitions. [2021-11-25 20:26:31,095 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 256 transitions. Word has length 27 [2021-11-25 20:26:31,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:31,096 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 256 transitions. [2021-11-25 20:26:31,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:26:31,096 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 256 transitions. [2021-11-25 20:26:31,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 20:26:31,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:31,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:31,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-25 20:26:31,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:26:31,320 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:26:31,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:31,321 INFO L85 PathProgramCache]: Analyzing trace with hash -82046012, now seen corresponding path program 1 times [2021-11-25 20:26:31,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:26:31,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912735248] [2021-11-25 20:26:31,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:31,322 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:26:31,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:26:31,323 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:26:31,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-25 20:26:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:32,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-25 20:26:32,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:32,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:26:32,852 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-25 20:26:32,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 30 [2021-11-25 20:26:34,750 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:26:34,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 35 [2021-11-25 20:26:35,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2021-11-25 20:26:36,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:26:36,941 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:26:36,941 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:26:36,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912735248] [2021-11-25 20:26:36,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912735248] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:36,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:36,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-25 20:26:36,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393576939] [2021-11-25 20:26:36,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:36,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 20:26:36,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:26:36,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 20:26:36,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:26:36,944 INFO L87 Difference]: Start difference. First operand 195 states and 256 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:26:39,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:43,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:46,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:49,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:51,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:53,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:54,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:56,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:58,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 20:27:00,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 20:27:02,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:27:06,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 20:27:08,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:08,995 INFO L93 Difference]: Finished difference Result 203 states and 263 transitions. [2021-11-25 20:27:09,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 20:27:09,004 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-11-25 20:27:09,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:09,006 INFO L225 Difference]: With dead ends: 203 [2021-11-25 20:27:09,007 INFO L226 Difference]: Without dead ends: 194 [2021-11-25 20:27:09,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-11-25 20:27:09,008 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 2 mSDsluCounter, 1869 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 284 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:09,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 2112 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 9 Unknown, 284 Unchecked, 31.8s Time] [2021-11-25 20:27:09,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-11-25 20:27:09,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2021-11-25 20:27:09,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 186 states have (on average 1.3118279569892473) internal successors, (244), 186 states have internal predecessors, (244), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:27:09,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 254 transitions. [2021-11-25 20:27:09,024 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 254 transitions. Word has length 27 [2021-11-25 20:27:09,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:09,024 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 254 transitions. [2021-11-25 20:27:09,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:09,025 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 254 transitions. [2021-11-25 20:27:09,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-25 20:27:09,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:09,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:09,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:27:09,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:27:09,247 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:27:09,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:09,248 INFO L85 PathProgramCache]: Analyzing trace with hash -2001119024, now seen corresponding path program 1 times [2021-11-25 20:27:09,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:27:09,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535690493] [2021-11-25 20:27:09,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:09,250 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:27:09,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:27:09,251 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:27:09,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-25 20:27:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:10,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-25 20:27:10,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:27:10,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:27:10,731 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-25 20:27:10,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 30 [2021-11-25 20:27:12,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2021-11-25 20:27:14,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:27:14,263 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:27:14,264 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:27:14,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535690493] [2021-11-25 20:27:14,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535690493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:14,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:14,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-25 20:27:14,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890946653] [2021-11-25 20:27:14,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:14,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-25 20:27:14,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:27:14,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-25 20:27:14,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:27:14,266 INFO L87 Difference]: Start difference. First operand 194 states and 254 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:14,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:14,603 INFO L93 Difference]: Finished difference Result 242 states and 319 transitions. [2021-11-25 20:27:14,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 20:27:14,604 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-11-25 20:27:14,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:14,607 INFO L225 Difference]: With dead ends: 242 [2021-11-25 20:27:14,607 INFO L226 Difference]: Without dead ends: 234 [2021-11-25 20:27:14,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:27:14,609 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 57 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 274 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:14,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 2155 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 274 Unchecked, 0.1s Time] [2021-11-25 20:27:14,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-25 20:27:14,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 196. [2021-11-25 20:27:14,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 188 states have (on average 1.3138297872340425) internal successors, (247), 188 states have internal predecessors, (247), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:27:14,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 257 transitions. [2021-11-25 20:27:14,623 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 257 transitions. Word has length 29 [2021-11-25 20:27:14,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:14,624 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 257 transitions. [2021-11-25 20:27:14,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:14,624 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 257 transitions. [2021-11-25 20:27:14,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-25 20:27:14,626 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:14,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:14,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-25 20:27:14,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:27:14,843 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:27:14,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:14,843 INFO L85 PathProgramCache]: Analyzing trace with hash -425950886, now seen corresponding path program 1 times [2021-11-25 20:27:14,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:27:14,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491839516] [2021-11-25 20:27:14,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:14,844 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:27:14,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:27:14,845 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:27:14,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-25 20:27:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:15,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 20:27:15,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:27:16,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:27:16,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:27:16,722 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:27:16,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491839516] [2021-11-25 20:27:16,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491839516] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:16,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:16,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:27:16,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317645656] [2021-11-25 20:27:16,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:16,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:27:16,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:27:16,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:27:16,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:27:16,724 INFO L87 Difference]: Start difference. First operand 196 states and 257 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:16,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:16,741 INFO L93 Difference]: Finished difference Result 368 states and 479 transitions. [2021-11-25 20:27:16,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:27:16,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-11-25 20:27:16,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:16,745 INFO L225 Difference]: With dead ends: 368 [2021-11-25 20:27:16,745 INFO L226 Difference]: Without dead ends: 196 [2021-11-25 20:27:16,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:27:16,753 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 1 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:16,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1194 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 37 Unchecked, 0.0s Time] [2021-11-25 20:27:16,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-25 20:27:16,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2021-11-25 20:27:16,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 188 states have (on average 1.3085106382978724) internal successors, (246), 188 states have internal predecessors, (246), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:27:16,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 256 transitions. [2021-11-25 20:27:16,770 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 256 transitions. Word has length 30 [2021-11-25 20:27:16,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:16,772 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 256 transitions. [2021-11-25 20:27:16,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:16,773 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 256 transitions. [2021-11-25 20:27:16,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-25 20:27:16,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:16,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:16,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-25 20:27:16,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:27:17,000 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:27:17,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:17,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1680752917, now seen corresponding path program 1 times [2021-11-25 20:27:17,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:27:17,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966977534] [2021-11-25 20:27:17,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:17,001 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:27:17,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:27:17,002 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:27:17,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-25 20:27:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:17,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-25 20:27:17,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:27:18,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:27:18,344 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-25 20:27:18,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 30 [2021-11-25 20:27:20,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2021-11-25 20:27:22,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:27:22,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:27:22,558 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:27:22,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966977534] [2021-11-25 20:27:22,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [966977534] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:22,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:22,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-25 20:27:22,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285849766] [2021-11-25 20:27:22,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:22,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:27:22,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:27:22,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:27:22,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-25 20:27:22,560 INFO L87 Difference]: Start difference. First operand 196 states and 256 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:22,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:22,920 INFO L93 Difference]: Finished difference Result 212 states and 270 transitions. [2021-11-25 20:27:22,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:27:22,921 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-11-25 20:27:22,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:22,923 INFO L225 Difference]: With dead ends: 212 [2021-11-25 20:27:22,923 INFO L226 Difference]: Without dead ends: 204 [2021-11-25 20:27:22,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:27:22,925 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 61 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 243 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:22,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 1894 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 243 Unchecked, 0.0s Time] [2021-11-25 20:27:22,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-25 20:27:22,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 195. [2021-11-25 20:27:22,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 187 states have (on average 1.304812834224599) internal successors, (244), 187 states have internal predecessors, (244), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:27:22,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 254 transitions. [2021-11-25 20:27:22,939 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 254 transitions. Word has length 30 [2021-11-25 20:27:22,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:22,940 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 254 transitions. [2021-11-25 20:27:22,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:22,940 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 254 transitions. [2021-11-25 20:27:22,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-25 20:27:22,948 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:22,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:22,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-25 20:27:23,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:27:23,172 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:27:23,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:23,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2042929589, now seen corresponding path program 1 times [2021-11-25 20:27:23,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:27:23,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910147406] [2021-11-25 20:27:23,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:23,173 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:27:23,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:27:23,174 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:27:23,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-25 20:27:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:24,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 20:27:24,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:27:25,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:27:25,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:27:25,140 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:27:25,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910147406] [2021-11-25 20:27:25,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910147406] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:25,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:25,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:27:25,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795000929] [2021-11-25 20:27:25,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:25,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:27:25,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:27:25,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:27:25,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:27:25,142 INFO L87 Difference]: Start difference. First operand 195 states and 254 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:25,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:25,153 INFO L93 Difference]: Finished difference Result 368 states and 478 transitions. [2021-11-25 20:27:25,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:27:25,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-11-25 20:27:25,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:25,155 INFO L225 Difference]: With dead ends: 368 [2021-11-25 20:27:25,155 INFO L226 Difference]: Without dead ends: 196 [2021-11-25 20:27:25,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:27:25,157 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 1 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:25,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1189 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 37 Unchecked, 0.0s Time] [2021-11-25 20:27:25,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-25 20:27:25,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 195. [2021-11-25 20:27:25,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 187 states have (on average 1.304812834224599) internal successors, (244), 187 states have internal predecessors, (244), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:27:25,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 254 transitions. [2021-11-25 20:27:25,166 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 254 transitions. Word has length 31 [2021-11-25 20:27:25,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:25,167 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 254 transitions. [2021-11-25 20:27:25,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:25,167 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 254 transitions. [2021-11-25 20:27:25,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 20:27:25,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:25,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:25,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-25 20:27:25,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:27:25,382 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:27:25,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:25,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1447467385, now seen corresponding path program 1 times [2021-11-25 20:27:25,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:27:25,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229525890] [2021-11-25 20:27:25,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:25,383 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:27:25,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:27:25,386 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:27:25,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-25 20:27:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:26,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-25 20:27:26,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:27:27,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:27:27,729 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:27:27,729 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:27:27,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229525890] [2021-11-25 20:27:27,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229525890] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:27,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:27,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-25 20:27:27,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592458752] [2021-11-25 20:27:27,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:27,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:27:27,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:27:27,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:27:27,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-25 20:27:27,732 INFO L87 Difference]: Start difference. First operand 195 states and 254 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:27,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:27,934 INFO L93 Difference]: Finished difference Result 213 states and 270 transitions. [2021-11-25 20:27:27,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:27:27,935 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-11-25 20:27:27,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:27,937 INFO L225 Difference]: With dead ends: 213 [2021-11-25 20:27:27,937 INFO L226 Difference]: Without dead ends: 204 [2021-11-25 20:27:27,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:27:27,939 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 134 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:27,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 2076 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 48 Unchecked, 0.1s Time] [2021-11-25 20:27:27,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-25 20:27:27,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 195. [2021-11-25 20:27:27,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 187 states have (on average 1.2994652406417113) internal successors, (243), 187 states have internal predecessors, (243), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:27:27,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 253 transitions. [2021-11-25 20:27:27,950 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 253 transitions. Word has length 32 [2021-11-25 20:27:27,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:27,950 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 253 transitions. [2021-11-25 20:27:27,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:27,951 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 253 transitions. [2021-11-25 20:27:27,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 20:27:27,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:27,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:27,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-25 20:27:28,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:27:28,168 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:27:28,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:28,168 INFO L85 PathProgramCache]: Analyzing trace with hash -767409015, now seen corresponding path program 1 times [2021-11-25 20:27:28,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:27:28,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556026736] [2021-11-25 20:27:28,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:28,168 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:27:28,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:27:28,169 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:27:28,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-25 20:27:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:29,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 20:27:29,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:27:29,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:27:29,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:27:29,706 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:27:29,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556026736] [2021-11-25 20:27:29,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556026736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:29,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:29,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:27:29,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889898302] [2021-11-25 20:27:29,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:29,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:27:29,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:27:29,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:27:29,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:27:29,709 INFO L87 Difference]: Start difference. First operand 195 states and 253 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:29,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:29,721 INFO L93 Difference]: Finished difference Result 203 states and 260 transitions. [2021-11-25 20:27:29,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:27:29,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-11-25 20:27:29,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:29,723 INFO L225 Difference]: With dead ends: 203 [2021-11-25 20:27:29,724 INFO L226 Difference]: Without dead ends: 193 [2021-11-25 20:27:29,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:27:29,725 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 11 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:29,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 932 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2021-11-25 20:27:29,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-25 20:27:29,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2021-11-25 20:27:29,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 185 states have (on average 1.2972972972972974) internal successors, (240), 185 states have internal predecessors, (240), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:27:29,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 250 transitions. [2021-11-25 20:27:29,736 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 250 transitions. Word has length 32 [2021-11-25 20:27:29,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:29,736 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 250 transitions. [2021-11-25 20:27:29,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:29,737 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 250 transitions. [2021-11-25 20:27:29,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 20:27:29,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:29,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:29,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-25 20:27:29,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:27:29,952 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:27:29,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:29,952 INFO L85 PathProgramCache]: Analyzing trace with hash 902951312, now seen corresponding path program 1 times [2021-11-25 20:27:29,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:27:29,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037774737] [2021-11-25 20:27:29,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:29,953 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:27:29,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:27:29,954 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:27:29,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-25 20:27:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:30,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 20:27:30,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:27:31,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:27:31,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:27:31,510 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:27:31,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037774737] [2021-11-25 20:27:31,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037774737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:31,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:31,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:27:31,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681509995] [2021-11-25 20:27:31,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:31,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:27:31,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:27:31,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:27:31,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:27:31,512 INFO L87 Difference]: Start difference. First operand 193 states and 250 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:31,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:31,525 INFO L93 Difference]: Finished difference Result 202 states and 258 transitions. [2021-11-25 20:27:31,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:27:31,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-11-25 20:27:31,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:31,527 INFO L225 Difference]: With dead ends: 202 [2021-11-25 20:27:31,527 INFO L226 Difference]: Without dead ends: 193 [2021-11-25 20:27:31,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:27:31,529 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 10 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:31,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 929 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2021-11-25 20:27:31,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-25 20:27:31,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2021-11-25 20:27:31,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 185 states have (on average 1.2918918918918918) internal successors, (239), 185 states have internal predecessors, (239), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:27:31,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 249 transitions. [2021-11-25 20:27:31,542 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 249 transitions. Word has length 32 [2021-11-25 20:27:31,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:31,543 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 249 transitions. [2021-11-25 20:27:31,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:31,543 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 249 transitions. [2021-11-25 20:27:31,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 20:27:31,544 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:31,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:31,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-25 20:27:31,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:27:31,767 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:27:31,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:31,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1583009682, now seen corresponding path program 1 times [2021-11-25 20:27:31,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:27:31,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475933413] [2021-11-25 20:27:31,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:31,768 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:27:31,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:27:31,769 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:27:31,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-25 20:27:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:32,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-25 20:27:32,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:27:32,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:27:33,081 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-25 20:27:33,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 30 [2021-11-25 20:27:34,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2021-11-25 20:27:36,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:27:36,817 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:27:36,817 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:27:36,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475933413] [2021-11-25 20:27:36,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475933413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:36,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:36,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-25 20:27:36,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396893815] [2021-11-25 20:27:36,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:36,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:27:36,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:27:36,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:27:36,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-25 20:27:36,820 INFO L87 Difference]: Start difference. First operand 193 states and 249 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:37,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:37,216 INFO L93 Difference]: Finished difference Result 209 states and 263 transitions. [2021-11-25 20:27:37,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:27:37,216 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-11-25 20:27:37,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:37,218 INFO L225 Difference]: With dead ends: 209 [2021-11-25 20:27:37,218 INFO L226 Difference]: Without dead ends: 196 [2021-11-25 20:27:37,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:27:37,219 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 62 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 241 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:37,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 1824 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 241 Unchecked, 0.0s Time] [2021-11-25 20:27:37,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-25 20:27:37,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 188. [2021-11-25 20:27:37,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 180 states have (on average 1.2833333333333334) internal successors, (231), 180 states have internal predecessors, (231), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:27:37,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 241 transitions. [2021-11-25 20:27:37,229 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 241 transitions. Word has length 32 [2021-11-25 20:27:37,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:37,230 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 241 transitions. [2021-11-25 20:27:37,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:37,230 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 241 transitions. [2021-11-25 20:27:37,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 20:27:37,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:37,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:37,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-25 20:27:37,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:27:37,455 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:27:37,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:37,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2094018898, now seen corresponding path program 1 times [2021-11-25 20:27:37,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:27:37,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197210887] [2021-11-25 20:27:37,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:37,456 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:27:37,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:27:37,457 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:27:37,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-25 20:27:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:38,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 20:27:38,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:27:39,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:27:39,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:27:39,317 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:27:39,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197210887] [2021-11-25 20:27:39,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197210887] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:39,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:39,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:27:39,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77845024] [2021-11-25 20:27:39,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:39,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:27:39,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:27:39,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:27:39,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:27:39,319 INFO L87 Difference]: Start difference. First operand 188 states and 241 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:39,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:39,323 INFO L93 Difference]: Finished difference Result 196 states and 248 transitions. [2021-11-25 20:27:39,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:27:39,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-11-25 20:27:39,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:39,323 INFO L225 Difference]: With dead ends: 196 [2021-11-25 20:27:39,323 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 20:27:39,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:27:39,325 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:39,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2021-11-25 20:27:39,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 20:27:39,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 20:27:39,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:27:39,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 20:27:39,327 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-11-25 20:27:39,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:39,327 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 20:27:39,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:27:39,328 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 20:27:39,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 20:27:39,330 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 20:27:39,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-25 20:27:39,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:27:39,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 20:27:40,104 INFO L858 garLoopResultBuilder]: For program point L259-2(lines 259 263) no Hoare annotation was computed. [2021-11-25 20:27:40,104 INFO L858 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 252 265) no Hoare annotation was computed. [2021-11-25 20:27:40,104 INFO L858 garLoopResultBuilder]: For program point L254-1(lines 254 258) no Hoare annotation was computed. [2021-11-25 20:27:40,105 INFO L854 garLoopResultBuilder]: At program point L254-2(lines 254 258) the Hoare annotation is: (= fabs_float_~x |fabs_float_#in~x|) [2021-11-25 20:27:40,105 INFO L858 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 252 265) no Hoare annotation was computed. [2021-11-25 20:27:40,105 INFO L861 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 252 265) the Hoare annotation is: true [2021-11-25 20:27:40,105 INFO L858 garLoopResultBuilder]: For program point L259(lines 259 263) no Hoare annotation was computed. [2021-11-25 20:27:40,105 INFO L858 garLoopResultBuilder]: For program point L259-1(lines 252 265) no Hoare annotation was computed. [2021-11-25 20:27:40,105 INFO L858 garLoopResultBuilder]: For program point L184(lines 184 188) no Hoare annotation was computed. [2021-11-25 20:27:40,105 INFO L858 garLoopResultBuilder]: For program point copysign_floatEXIT(lines 177 195) no Hoare annotation was computed. [2021-11-25 20:27:40,105 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 177 195) no Hoare annotation was computed. [2021-11-25 20:27:40,105 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 193) no Hoare annotation was computed. [2021-11-25 20:27:40,105 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 177 195) no Hoare annotation was computed. [2021-11-25 20:27:40,106 INFO L858 garLoopResultBuilder]: For program point L189-2(lines 189 193) no Hoare annotation was computed. [2021-11-25 20:27:40,106 INFO L861 garLoopResultBuilder]: At program point copysign_floatENTRY(lines 177 195) the Hoare annotation is: true [2021-11-25 20:27:40,106 INFO L858 garLoopResultBuilder]: For program point L179-1(lines 179 183) no Hoare annotation was computed. [2021-11-25 20:27:40,106 INFO L861 garLoopResultBuilder]: At program point L179-2(lines 179 183) the Hoare annotation is: true [2021-11-25 20:27:40,106 INFO L858 garLoopResultBuilder]: For program point copysign_floatFINAL(lines 177 195) no Hoare annotation was computed. [2021-11-25 20:27:40,106 INFO L854 garLoopResultBuilder]: At program point L597(lines 589 598) the Hoare annotation is: (= |ULTIMATE.start_isinf_float_#res#1| (_ bv1 32)) [2021-11-25 20:27:40,107 INFO L858 garLoopResultBuilder]: For program point L531(lines 531 533) no Hoare annotation was computed. [2021-11-25 20:27:40,107 INFO L858 garLoopResultBuilder]: For program point L531-2(lines 522 534) no Hoare annotation was computed. [2021-11-25 20:27:40,107 INFO L858 garLoopResultBuilder]: For program point L532(lines 532 533) no Hoare annotation was computed. [2021-11-25 20:27:40,107 INFO L858 garLoopResultBuilder]: For program point L433-1(lines 433 437) no Hoare annotation was computed. [2021-11-25 20:27:40,107 INFO L858 garLoopResultBuilder]: For program point L367(lines 367 368) no Hoare annotation was computed. [2021-11-25 20:27:40,107 INFO L854 garLoopResultBuilder]: At program point L433-2(lines 433 437) the Hoare annotation is: false [2021-11-25 20:27:40,108 INFO L858 garLoopResultBuilder]: For program point L170-1(lines 170 174) no Hoare annotation was computed. [2021-11-25 20:27:40,108 INFO L854 garLoopResultBuilder]: At program point L170-2(lines 170 174) the Hoare annotation is: false [2021-11-25 20:27:40,108 INFO L858 garLoopResultBuilder]: For program point L170-3(lines 170 174) no Hoare annotation was computed. [2021-11-25 20:27:40,108 INFO L858 garLoopResultBuilder]: For program point L501(lines 501 502) no Hoare annotation was computed. [2021-11-25 20:27:40,108 INFO L858 garLoopResultBuilder]: For program point L402(lines 402 410) no Hoare annotation was computed. [2021-11-25 20:27:40,108 INFO L858 garLoopResultBuilder]: For program point L402-1(lines 402 410) no Hoare annotation was computed. [2021-11-25 20:27:40,109 INFO L858 garLoopResultBuilder]: For program point L303-1(lines 303 307) no Hoare annotation was computed. [2021-11-25 20:27:40,109 INFO L854 garLoopResultBuilder]: At program point L303-2(lines 303 307) the Hoare annotation is: (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_fabs_float_~#sf_u~6.base_7| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (let ((.cse0 (select (select |#memory_int| |v_fabs_float_~#sf_u~6.base_7|) (_ bv0 32)))) (and (= (bvand (_ bv2147483647 32) v_arrayElimCell_1) .cse0) (fp.lt (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) ((_ to_fp 8 24) currentRoundingMode (_ bv1 32))) (= |ULTIMATE.start___ieee754_powf_~x#1| (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1))) (= |ULTIMATE.start___ieee754_powf_~y#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))))) [2021-11-25 20:27:40,109 INFO L858 garLoopResultBuilder]: For program point L238(lines 238 243) no Hoare annotation was computed. [2021-11-25 20:27:40,109 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 205 209) no Hoare annotation was computed. [2021-11-25 20:27:40,109 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 140) no Hoare annotation was computed. [2021-11-25 20:27:40,110 INFO L854 garLoopResultBuilder]: At program point L205-2(lines 205 209) the Hoare annotation is: false [2021-11-25 20:27:40,110 INFO L858 garLoopResultBuilder]: For program point L205-3(lines 205 209) no Hoare annotation was computed. [2021-11-25 20:27:40,110 INFO L858 garLoopResultBuilder]: For program point L139-2(lines 139 140) no Hoare annotation was computed. [2021-11-25 20:27:40,110 INFO L858 garLoopResultBuilder]: For program point L503(lines 503 507) no Hoare annotation was computed. [2021-11-25 20:27:40,110 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 297 586) no Hoare annotation was computed. [2021-11-25 20:27:40,111 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 343) no Hoare annotation was computed. [2021-11-25 20:27:40,111 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 242) no Hoare annotation was computed. [2021-11-25 20:27:40,111 INFO L858 garLoopResultBuilder]: For program point L438(lines 438 442) no Hoare annotation was computed. [2021-11-25 20:27:40,111 INFO L858 garLoopResultBuilder]: For program point L438-1(lines 398 499) no Hoare annotation was computed. [2021-11-25 20:27:40,111 INFO L858 garLoopResultBuilder]: For program point L405-1(lines 405 409) no Hoare annotation was computed. [2021-11-25 20:27:40,111 INFO L854 garLoopResultBuilder]: At program point L405-2(lines 405 409) the Hoare annotation is: false [2021-11-25 20:27:40,111 INFO L854 garLoopResultBuilder]: At program point L240(line 240) the Hoare annotation is: false [2021-11-25 20:27:40,112 INFO L858 garLoopResultBuilder]: For program point L240-1(line 240) no Hoare annotation was computed. [2021-11-25 20:27:40,112 INFO L858 garLoopResultBuilder]: For program point L538(lines 538 550) no Hoare annotation was computed. [2021-11-25 20:27:40,112 INFO L858 garLoopResultBuilder]: For program point L571-1(lines 571 575) no Hoare annotation was computed. [2021-11-25 20:27:40,112 INFO L854 garLoopResultBuilder]: At program point L571-2(lines 571 575) the Hoare annotation is: false [2021-11-25 20:27:40,112 INFO L858 garLoopResultBuilder]: For program point L538-2(lines 538 550) no Hoare annotation was computed. [2021-11-25 20:27:40,113 INFO L858 garLoopResultBuilder]: For program point L571-3(lines 571 575) no Hoare annotation was computed. [2021-11-25 20:27:40,113 INFO L858 garLoopResultBuilder]: For program point L472-1(lines 472 476) no Hoare annotation was computed. [2021-11-25 20:27:40,113 INFO L854 garLoopResultBuilder]: At program point L472-2(lines 472 476) the Hoare annotation is: false [2021-11-25 20:27:40,113 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 374) no Hoare annotation was computed. [2021-11-25 20:27:40,113 INFO L858 garLoopResultBuilder]: For program point L340(lines 340 343) no Hoare annotation was computed. [2021-11-25 20:27:40,113 INFO L854 garLoopResultBuilder]: At program point L175(lines 111 176) the Hoare annotation is: false [2021-11-25 20:27:40,113 INFO L858 garLoopResultBuilder]: For program point L341(line 341) no Hoare annotation was computed. [2021-11-25 20:27:40,114 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 312) no Hoare annotation was computed. [2021-11-25 20:27:40,114 INFO L858 garLoopResultBuilder]: For program point L308-1(lines 297 586) no Hoare annotation was computed. [2021-11-25 20:27:40,114 INFO L858 garLoopResultBuilder]: For program point L341-2(line 341) no Hoare annotation was computed. [2021-11-25 20:27:40,114 INFO L858 garLoopResultBuilder]: For program point L308-2(lines 308 312) no Hoare annotation was computed. [2021-11-25 20:27:40,114 INFO L854 garLoopResultBuilder]: At program point L242(line 242) the Hoare annotation is: false [2021-11-25 20:27:40,114 INFO L858 garLoopResultBuilder]: For program point L242-1(line 242) no Hoare annotation was computed. [2021-11-25 20:27:40,115 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 499) no Hoare annotation was computed. [2021-11-25 20:27:40,115 INFO L858 garLoopResultBuilder]: For program point L375-2(lines 375 499) no Hoare annotation was computed. [2021-11-25 20:27:40,115 INFO L858 garLoopResultBuilder]: For program point L508(lines 508 512) no Hoare annotation was computed. [2021-11-25 20:27:40,115 INFO L858 garLoopResultBuilder]: For program point L541-1(lines 541 545) no Hoare annotation was computed. [2021-11-25 20:27:40,115 INFO L858 garLoopResultBuilder]: For program point L508-1(lines 297 586) no Hoare annotation was computed. [2021-11-25 20:27:40,115 INFO L854 garLoopResultBuilder]: At program point L541-2(lines 541 545) the Hoare annotation is: false [2021-11-25 20:27:40,115 INFO L858 garLoopResultBuilder]: For program point L508-2(lines 508 512) no Hoare annotation was computed. [2021-11-25 20:27:40,115 INFO L858 garLoopResultBuilder]: For program point L541-3(lines 541 545) no Hoare annotation was computed. [2021-11-25 20:27:40,115 INFO L858 garLoopResultBuilder]: For program point L343(line 343) no Hoare annotation was computed. [2021-11-25 20:27:40,116 INFO L858 garLoopResultBuilder]: For program point L343-2(line 343) no Hoare annotation was computed. [2021-11-25 20:27:40,116 INFO L858 garLoopResultBuilder]: For program point L443(lines 443 447) no Hoare annotation was computed. [2021-11-25 20:27:40,116 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 398 499) no Hoare annotation was computed. [2021-11-25 20:27:40,116 INFO L858 garLoopResultBuilder]: For program point L377(lines 377 378) no Hoare annotation was computed. [2021-11-25 20:27:40,116 INFO L858 garLoopResultBuilder]: For program point L443-2(lines 443 447) no Hoare annotation was computed. [2021-11-25 20:27:40,116 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 213) no Hoare annotation was computed. [2021-11-25 20:27:40,116 INFO L858 garLoopResultBuilder]: For program point L245-1(lines 245 249) no Hoare annotation was computed. [2021-11-25 20:27:40,116 INFO L854 garLoopResultBuilder]: At program point L245-2(lines 245 249) the Hoare annotation is: false [2021-11-25 20:27:40,116 INFO L858 garLoopResultBuilder]: For program point L245-3(lines 245 249) no Hoare annotation was computed. [2021-11-25 20:27:40,117 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 481) no Hoare annotation was computed. [2021-11-25 20:27:40,117 INFO L858 garLoopResultBuilder]: For program point L477-1(lines 398 499) no Hoare annotation was computed. [2021-11-25 20:27:40,117 INFO L858 garLoopResultBuilder]: For program point L477-2(lines 477 481) no Hoare annotation was computed. [2021-11-25 20:27:40,117 INFO L858 garLoopResultBuilder]: For program point L378(line 378) no Hoare annotation was computed. [2021-11-25 20:27:40,117 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 350) no Hoare annotation was computed. [2021-11-25 20:27:40,117 INFO L858 garLoopResultBuilder]: For program point L378-2(line 378) no Hoare annotation was computed. [2021-11-25 20:27:40,117 INFO L854 garLoopResultBuilder]: At program point L147-2(lines 147 156) the Hoare annotation is: false [2021-11-25 20:27:40,118 INFO L858 garLoopResultBuilder]: For program point L147-3(lines 111 176) no Hoare annotation was computed. [2021-11-25 20:27:40,118 INFO L858 garLoopResultBuilder]: For program point L577(lines 577 584) no Hoare annotation was computed. [2021-11-25 20:27:40,118 INFO L858 garLoopResultBuilder]: For program point L379(lines 379 380) no Hoare annotation was computed. [2021-11-25 20:27:40,118 INFO L858 garLoopResultBuilder]: For program point L346(lines 346 349) no Hoare annotation was computed. [2021-11-25 20:27:40,118 INFO L858 garLoopResultBuilder]: For program point L214(lines 214 215) no Hoare annotation was computed. [2021-11-25 20:27:40,119 INFO L854 garLoopResultBuilder]: At program point L611(line 611) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_main_~y~0#1|)) [2021-11-25 20:27:40,119 INFO L858 garLoopResultBuilder]: For program point L611-1(lines 611 620) no Hoare annotation was computed. [2021-11-25 20:27:40,119 INFO L858 garLoopResultBuilder]: For program point L611-3(lines 611 620) no Hoare annotation was computed. [2021-11-25 20:27:40,119 INFO L858 garLoopResultBuilder]: For program point L380(line 380) no Hoare annotation was computed. [2021-11-25 20:27:40,119 INFO L858 garLoopResultBuilder]: For program point L380-2(line 380) no Hoare annotation was computed. [2021-11-25 20:27:40,119 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 153) no Hoare annotation was computed. [2021-11-25 20:27:40,120 INFO L858 garLoopResultBuilder]: For program point L116-1(lines 116 120) no Hoare annotation was computed. [2021-11-25 20:27:40,120 INFO L858 garLoopResultBuilder]: For program point L149-2(lines 149 153) no Hoare annotation was computed. [2021-11-25 20:27:40,120 INFO L854 garLoopResultBuilder]: At program point L116-2(lines 116 120) the Hoare annotation is: false [2021-11-25 20:27:40,120 INFO L858 garLoopResultBuilder]: For program point L116-3(lines 116 120) no Hoare annotation was computed. [2021-11-25 20:27:40,120 INFO L858 garLoopResultBuilder]: For program point L216(lines 216 226) no Hoare annotation was computed. [2021-11-25 20:27:40,120 INFO L858 garLoopResultBuilder]: For program point L216-2(lines 216 226) no Hoare annotation was computed. [2021-11-25 20:27:40,120 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 548) no Hoare annotation was computed. [2021-11-25 20:27:40,121 INFO L858 garLoopResultBuilder]: For program point L580-1(lines 580 584) no Hoare annotation was computed. [2021-11-25 20:27:40,121 INFO L854 garLoopResultBuilder]: At program point L580-2(lines 580 584) the Hoare annotation is: false [2021-11-25 20:27:40,121 INFO L858 garLoopResultBuilder]: For program point L547-2(lines 547 548) no Hoare annotation was computed. [2021-11-25 20:27:40,121 INFO L858 garLoopResultBuilder]: For program point L580-3(lines 577 584) no Hoare annotation was computed. [2021-11-25 20:27:40,121 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 423) no Hoare annotation was computed. [2021-11-25 20:27:40,121 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 317) no Hoare annotation was computed. [2021-11-25 20:27:40,122 INFO L854 garLoopResultBuilder]: At program point L250(lines 201 251) the Hoare annotation is: false [2021-11-25 20:27:40,122 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 20:27:40,122 INFO L858 garLoopResultBuilder]: For program point L218-1(lines 218 222) no Hoare annotation was computed. [2021-11-25 20:27:40,122 INFO L854 garLoopResultBuilder]: At program point L218-2(lines 218 222) the Hoare annotation is: false [2021-11-25 20:27:40,122 INFO L858 garLoopResultBuilder]: For program point L218-3(lines 218 222) no Hoare annotation was computed. [2021-11-25 20:27:40,122 INFO L858 garLoopResultBuilder]: For program point L516-1(lines 516 520) no Hoare annotation was computed. [2021-11-25 20:27:40,122 INFO L854 garLoopResultBuilder]: At program point L516-2(lines 516 520) the Hoare annotation is: false [2021-11-25 20:27:40,122 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-11-25 20:27:40,123 INFO L858 garLoopResultBuilder]: For program point L516-3(lines 516 520) no Hoare annotation was computed. [2021-11-25 20:27:40,123 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 352) no Hoare annotation was computed. [2021-11-25 20:27:40,123 INFO L858 garLoopResultBuilder]: For program point L616(lines 616 619) no Hoare annotation was computed. [2021-11-25 20:27:40,123 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 324) no Hoare annotation was computed. [2021-11-25 20:27:40,123 INFO L858 garLoopResultBuilder]: For program point L617(line 617) no Hoare annotation was computed. [2021-11-25 20:27:40,123 INFO L858 garLoopResultBuilder]: For program point L353(lines 353 356) no Hoare annotation was computed. [2021-11-25 20:27:40,123 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 323) no Hoare annotation was computed. [2021-11-25 20:27:40,123 INFO L854 garLoopResultBuilder]: At program point L353-2(lines 353 356) the Hoare annotation is: false [2021-11-25 20:27:40,123 INFO L854 garLoopResultBuilder]: At program point L585(lines 297 586) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_powf_#res#1| (fp.neg (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))))) [2021-11-25 20:27:40,123 INFO L858 garLoopResultBuilder]: For program point L552-1(lines 552 556) no Hoare annotation was computed. [2021-11-25 20:27:40,123 INFO L854 garLoopResultBuilder]: At program point L552-2(lines 552 556) the Hoare annotation is: false [2021-11-25 20:27:40,124 INFO L858 garLoopResultBuilder]: For program point L354(lines 354 355) no Hoare annotation was computed. [2021-11-25 20:27:40,124 INFO L858 garLoopResultBuilder]: For program point L387-1(lines 387 391) no Hoare annotation was computed. [2021-11-25 20:27:40,124 INFO L854 garLoopResultBuilder]: At program point L387-2(lines 387 391) the Hoare annotation is: false [2021-11-25 20:27:40,124 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 124) no Hoare annotation was computed. [2021-11-25 20:27:40,124 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 20:27:40,124 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 488 492) no Hoare annotation was computed. [2021-11-25 20:27:40,124 INFO L854 garLoopResultBuilder]: At program point L488-2(lines 488 492) the Hoare annotation is: false [2021-11-25 20:27:40,124 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 225) no Hoare annotation was computed. [2021-11-25 20:27:40,124 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 167) no Hoare annotation was computed. [2021-11-25 20:27:40,124 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 534) no Hoare annotation was computed. [2021-11-25 20:27:40,124 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 127) no Hoare annotation was computed. [2021-11-25 20:27:40,125 INFO L861 garLoopResultBuilder]: At program point L622(lines 600 623) the Hoare annotation is: true [2021-11-25 20:27:40,125 INFO L858 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2021-11-25 20:27:40,125 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 428) no Hoare annotation was computed. [2021-11-25 20:27:40,125 INFO L858 garLoopResultBuilder]: For program point L424-1(lines 398 499) no Hoare annotation was computed. [2021-11-25 20:27:40,125 INFO L858 garLoopResultBuilder]: For program point L358(line 358) no Hoare annotation was computed. [2021-11-25 20:27:40,125 INFO L858 garLoopResultBuilder]: For program point L424-2(lines 424 428) no Hoare annotation was computed. [2021-11-25 20:27:40,125 INFO L858 garLoopResultBuilder]: For program point L160(lines 160 166) no Hoare annotation was computed. [2021-11-25 20:27:40,125 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-25 20:27:40,125 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 561) no Hoare annotation was computed. [2021-11-25 20:27:40,125 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 297 586) no Hoare annotation was computed. [2021-11-25 20:27:40,125 INFO L858 garLoopResultBuilder]: For program point L557-2(lines 557 561) no Hoare annotation was computed. [2021-11-25 20:27:40,125 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 458 462) no Hoare annotation was computed. [2021-11-25 20:27:40,125 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 396) no Hoare annotation was computed. [2021-11-25 20:27:40,125 INFO L854 garLoopResultBuilder]: At program point L458-2(lines 458 462) the Hoare annotation is: false [2021-11-25 20:27:40,126 INFO L858 garLoopResultBuilder]: For program point L392-1(lines 375 398) no Hoare annotation was computed. [2021-11-25 20:27:40,126 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 335) no Hoare annotation was computed. [2021-11-25 20:27:40,126 INFO L858 garLoopResultBuilder]: For program point L392-2(lines 392 396) no Hoare annotation was computed. [2021-11-25 20:27:40,126 INFO L858 garLoopResultBuilder]: For program point L326-1(lines 297 586) no Hoare annotation was computed. [2021-11-25 20:27:40,126 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 129) no Hoare annotation was computed. [2021-11-25 20:27:40,126 INFO L858 garLoopResultBuilder]: For program point L591-1(lines 591 595) no Hoare annotation was computed. [2021-11-25 20:27:40,126 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 527) no Hoare annotation was computed. [2021-11-25 20:27:40,126 INFO L854 garLoopResultBuilder]: At program point L591-2(lines 591 595) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.neg (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) |ULTIMATE.start_isinf_float_~x#1|)) [2021-11-25 20:27:40,126 INFO L858 garLoopResultBuilder]: For program point L591-3(lines 591 595) no Hoare annotation was computed. [2021-11-25 20:27:40,126 INFO L858 garLoopResultBuilder]: For program point L360(lines 360 371) no Hoare annotation was computed. [2021-11-25 20:27:40,126 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 334) no Hoare annotation was computed. [2021-11-25 20:27:40,126 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 229) no Hoare annotation was computed. [2021-11-25 20:27:40,126 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 165) no Hoare annotation was computed. [2021-11-25 20:27:40,126 INFO L858 garLoopResultBuilder]: For program point L526(lines 526 527) no Hoare annotation was computed. [2021-11-25 20:27:40,127 INFO L858 garLoopResultBuilder]: For program point L493(lines 493 497) no Hoare annotation was computed. [2021-11-25 20:27:40,127 INFO L858 garLoopResultBuilder]: For program point L493-1(lines 398 499) no Hoare annotation was computed. [2021-11-25 20:27:40,127 INFO L858 garLoopResultBuilder]: For program point L493-2(lines 493 497) no Hoare annotation was computed. [2021-11-25 20:27:40,127 INFO L854 garLoopResultBuilder]: At program point L229(line 229) the Hoare annotation is: false [2021-11-25 20:27:40,127 INFO L858 garLoopResultBuilder]: For program point L229-1(line 229) no Hoare annotation was computed. [2021-11-25 20:27:40,127 INFO L858 garLoopResultBuilder]: For program point L362(lines 362 363) no Hoare annotation was computed. [2021-11-25 20:27:40,127 INFO L858 garLoopResultBuilder]: For program point L329(lines 329 334) no Hoare annotation was computed. [2021-11-25 20:27:40,127 INFO L858 garLoopResultBuilder]: For program point L362-2(lines 360 371) no Hoare annotation was computed. [2021-11-25 20:27:40,127 INFO L858 garLoopResultBuilder]: For program point L230(lines 230 237) no Hoare annotation was computed. [2021-11-25 20:27:40,127 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-25 20:27:40,127 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 617) no Hoare annotation was computed. [2021-11-25 20:27:40,127 INFO L858 garLoopResultBuilder]: For program point L231-1(lines 231 235) no Hoare annotation was computed. [2021-11-25 20:27:40,127 INFO L854 garLoopResultBuilder]: At program point L231-2(lines 231 235) the Hoare annotation is: false [2021-11-25 20:27:40,127 INFO L858 garLoopResultBuilder]: For program point L132(lines 132 136) no Hoare annotation was computed. [2021-11-25 20:27:40,128 INFO L858 garLoopResultBuilder]: For program point L231-3(lines 231 235) no Hoare annotation was computed. [2021-11-25 20:27:40,128 INFO L858 garLoopResultBuilder]: For program point L132-2(lines 132 136) no Hoare annotation was computed. [2021-11-25 20:27:40,128 INFO L858 garLoopResultBuilder]: For program point L529(lines 529 533) no Hoare annotation was computed. [2021-11-25 20:27:40,128 INFO L858 garLoopResultBuilder]: For program point L463(lines 463 467) no Hoare annotation was computed. [2021-11-25 20:27:40,128 INFO L858 garLoopResultBuilder]: For program point L463-1(lines 398 499) no Hoare annotation was computed. [2021-11-25 20:27:40,128 INFO L858 garLoopResultBuilder]: For program point L463-2(lines 463 467) no Hoare annotation was computed. [2021-11-25 20:27:40,128 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 369) no Hoare annotation was computed. [2021-11-25 20:27:40,128 INFO L858 garLoopResultBuilder]: For program point L133-2(lines 133 134) no Hoare annotation was computed. [2021-11-25 20:27:40,128 INFO L854 garLoopResultBuilder]: At program point L133-3(lines 133 134) the Hoare annotation is: false [2021-11-25 20:27:40,128 INFO L858 garLoopResultBuilder]: For program point L133-4(lines 133 134) no Hoare annotation was computed. [2021-11-25 20:27:40,128 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 368) no Hoare annotation was computed. [2021-11-25 20:27:40,128 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 333) no Hoare annotation was computed. [2021-11-25 20:27:40,131 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:40,133 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 20:27:40,145 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,146 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,147 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,147 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,149 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,149 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,149 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,150 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,153 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,153 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,159 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,159 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,159 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,160 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,160 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,160 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,160 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,160 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,161 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,163 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,163 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:27:40 BoogieIcfgContainer [2021-11-25 20:27:40,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 20:27:40,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 20:27:40,168 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 20:27:40,168 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 20:27:40,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:26:22" (3/4) ... [2021-11-25 20:27:40,171 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 20:27:40,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2021-11-25 20:27:40,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_float [2021-11-25 20:27:40,205 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-25 20:27:40,206 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-25 20:27:40,206 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 20:27:40,206 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 20:27:40,237 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2021-11-25 20:27:40,238 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_arrayElimCell_1 : bv32, v_fabs_float_~#sf_u~6.base_7 : bv32, currentRoundingMode : FloatRoundingMode :: ((~bvand32(2147483647bv32, v_arrayElimCell_1) == unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32] && ~fp.lt~FLOAT(~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32][31:31], unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32][30:23], unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32][22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 1bv32))) && x == ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0])) && y == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) [2021-11-25 20:27:40,300 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 20:27:40,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 20:27:40,301 INFO L158 Benchmark]: Toolchain (without parser) took 101202.48ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 38.4MB in the beginning and 34.4MB in the end (delta: 4.0MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2021-11-25 20:27:40,301 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory was 41.5MB in the beginning and 41.5MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 20:27:40,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 630.71ms. Allocated memory is still 60.8MB. Free memory was 38.2MB in the beginning and 30.0MB in the end (delta: 8.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-25 20:27:40,302 INFO L158 Benchmark]: Boogie Procedure Inliner took 128.38ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 29.9MB in the beginning and 54.5MB in the end (delta: -24.6MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2021-11-25 20:27:40,303 INFO L158 Benchmark]: Boogie Preprocessor took 141.79ms. Allocated memory is still 73.4MB. Free memory was 54.5MB in the beginning and 50.0MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-25 20:27:40,303 INFO L158 Benchmark]: RCFGBuilder took 22481.04ms. Allocated memory is still 73.4MB. Free memory was 50.0MB in the beginning and 45.9MB in the end (delta: 4.1MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2021-11-25 20:27:40,303 INFO L158 Benchmark]: TraceAbstraction took 77680.71ms. Allocated memory is still 73.4MB. Free memory was 45.5MB in the beginning and 48.5MB in the end (delta: -3.0MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2021-11-25 20:27:40,304 INFO L158 Benchmark]: Witness Printer took 132.83ms. Allocated memory is still 73.4MB. Free memory was 48.5MB in the beginning and 34.4MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-25 20:27:40,306 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory was 41.5MB in the beginning and 41.5MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 630.71ms. Allocated memory is still 60.8MB. Free memory was 38.2MB in the beginning and 30.0MB in the end (delta: 8.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 128.38ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 29.9MB in the beginning and 54.5MB in the end (delta: -24.6MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 141.79ms. Allocated memory is still 73.4MB. Free memory was 54.5MB in the beginning and 50.0MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 22481.04ms. Allocated memory is still 73.4MB. Free memory was 50.0MB in the beginning and 45.9MB in the end (delta: 4.1MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * TraceAbstraction took 77680.71ms. Allocated memory is still 73.4MB. Free memory was 45.5MB in the beginning and 48.5MB in the end (delta: -3.0MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * Witness Printer took 132.83ms. Allocated memory is still 73.4MB. Free memory was 48.5MB in the beginning and 34.4MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 617]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 77.6s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 36.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 348 SdHoareTripleChecker+Valid, 35.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 347 mSDsluCounter, 17301 SdHoareTripleChecker+Invalid, 33.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1286 IncrementalHoareTripleChecker+Unchecked, 14336 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 2965 mSDtfsCounter, 67 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=0, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 73 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 65 PreInvPairs, 71 NumberOfFragments, 119 HoareAnnotationTreeSize, 65 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 35 FomulaSimplificationsInter, 150 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 11.3s SatisfiabilityAnalysisTime, 24.8s InterpolantComputationTime, 379 NumberOfCodeBlocks, 379 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 366 ConstructedInterpolants, 165 QuantifiedInterpolants, 4301 SizeOfPredicates, 104 NumberOfNonLiveVariables, 2282 ConjunctsInSsa, 189 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 488]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 472]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 254]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant [2021-11-25 20:27:40,318 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,318 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,319 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,319 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.neg~FLOAT(~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 458]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 580]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: \result == 1bv32 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 591]: Loop Invariant [2021-11-25 20:27:40,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.neg~FLOAT(~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) == x) - InvariantResult [Line: 433]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 303]: Loop Invariant [2021-11-25 20:27:40,322 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,323 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,323 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,323 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,323 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,323 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,323 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,324 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,324 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,324 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,324 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,325 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,325 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,325 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,325 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,325 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-11-25 20:27:40,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-25 20:27:40,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 20:27:40,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists v_arrayElimCell_1 : bv32, v_fabs_float_~#sf_u~6.base_7 : bv32, currentRoundingMode : FloatRoundingMode :: ((~bvand32(2147483647bv32, v_arrayElimCell_1) == unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32] && ~fp.lt~FLOAT(~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32][31:31], unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32][30:23], unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32][22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 1bv32))) && x == ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0])) && y == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 405]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 387]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-25 20:27:40,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d04ee3-d4f9-40b2-ba05-267a71765cd5/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE