./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0883.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0883.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur --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 86e7efa59a6bd11d9a5dfdc7b4f5743dfbd252f8913e1946c8d686b198d4af2f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:34:56,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:34:56,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:34:56,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:34:56,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:34:56,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:34:56,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:34:56,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:34:56,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:34:56,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:34:56,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:34:56,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:34:56,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:34:56,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:34:56,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:34:56,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:34:56,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:34:56,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:34:56,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:34:56,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:34:56,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:34:56,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:34:56,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:34:56,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:34:56,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:34:56,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:34:56,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:34:56,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:34:56,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:34:56,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:34:56,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:34:56,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:34:56,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:34:56,951 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:34:56,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:34:56,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:34:56,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:34:56,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:34:56,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:34:56,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:34:56,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:34:56,985 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:34:57,039 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:34:57,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:34:57,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:34:57,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:34:57,041 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:34:57,042 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:34:57,042 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:34:57,042 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:34:57,042 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:34:57,042 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:34:57,043 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:34:57,044 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:34:57,044 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:34:57,044 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:34:57,044 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:34:57,044 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:34:57,045 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:34:57,045 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:34:57,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:34:57,046 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:34:57,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:34:57,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:34:57,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:34:57,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:34:57,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:34:57,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:34:57,048 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:34:57,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:34:57,048 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:34:57,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:34:57,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:34:57,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:34:57,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:34:57,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:34:57,049 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:34:57,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:34:57,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:34:57,054 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:34:57,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:34:57,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:34:57,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:34:57,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7efa59a6bd11d9a5dfdc7b4f5743dfbd252f8913e1946c8d686b198d4af2f [2022-11-25 22:34:57,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:34:57,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:34:57,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:34:57,357 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:34:57,358 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:34:57,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-newlib/float_req_bl_0883.c [2022-11-25 22:35:00,433 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:35:00,662 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:35:00,666 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/sv-benchmarks/c/float-newlib/float_req_bl_0883.c [2022-11-25 22:35:00,687 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/data/db9c6132a/9e75134b1724478ba19af66d66c6963a/FLAG0740fbb23 [2022-11-25 22:35:00,702 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/data/db9c6132a/9e75134b1724478ba19af66d66c6963a [2022-11-25 22:35:00,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:35:00,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:35:00,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:35:00,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:35:00,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:35:00,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:35:00" (1/1) ... [2022-11-25 22:35:00,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32b21ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:00, skipping insertion in model container [2022-11-25 22:35:00,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:35:00" (1/1) ... [2022-11-25 22:35:00,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:35:00,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:35:01,072 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:795) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:2055) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$61(StandardFunctionHandler.java:428) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2068) 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:1676) 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:1094) 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:1653) 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:1094) 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:1496) 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:3320) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2395) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) 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) [2022-11-25 22:35:01,086 INFO L158 Benchmark]: Toolchain (without parser) took 378.97ms. Allocated memory is still 115.3MB. Free memory was 76.4MB in the beginning and 64.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 22:35:01,087 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory was 86.3MB in the beginning and 86.1MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:35:01,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.85ms. Allocated memory is still 115.3MB. Free memory was 76.0MB in the beginning and 64.2MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 22:35:01,090 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory was 86.3MB in the beginning and 86.1MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.85ms. Allocated memory is still 115.3MB. Free memory was 76.0MB in the beginning and 64.2MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. 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:795) 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0883.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur --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 86e7efa59a6bd11d9a5dfdc7b4f5743dfbd252f8913e1946c8d686b198d4af2f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:35:03,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:35:03,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:35:03,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:35:03,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:35:03,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:35:03,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:35:03,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:35:03,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:35:03,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:35:03,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:35:03,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:35:03,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:35:03,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:35:03,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:35:03,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:35:03,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:35:03,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:35:03,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:35:03,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:35:03,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:35:03,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:35:03,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:35:03,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:35:03,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:35:03,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:35:03,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:35:03,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:35:03,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:35:03,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:35:03,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:35:03,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:35:03,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:35:03,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:35:03,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:35:03,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:35:03,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:35:03,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:35:03,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:35:03,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:35:03,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:35:03,324 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-25 22:35:03,368 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:35:03,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:35:03,369 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:35:03,369 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:35:03,370 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:35:03,370 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:35:03,370 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:35:03,371 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:35:03,371 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:35:03,371 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:35:03,371 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:35:03,371 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:35:03,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:35:03,372 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:35:03,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:35:03,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:35:03,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:35:03,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:35:03,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:35:03,373 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:35:03,374 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:35:03,376 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:35:03,376 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:35:03,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:35:03,377 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:35:03,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:35:03,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:35:03,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:35:03,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:35:03,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:35:03,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:35:03,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:35:03,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:35:03,379 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:35:03,380 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:35:03,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:35:03,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:35:03,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:35:03,381 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_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7efa59a6bd11d9a5dfdc7b4f5743dfbd252f8913e1946c8d686b198d4af2f [2022-11-25 22:35:03,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:35:03,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:35:03,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:35:03,838 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:35:03,839 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:35:03,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-newlib/float_req_bl_0883.c [2022-11-25 22:35:06,974 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:35:07,231 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:35:07,232 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/sv-benchmarks/c/float-newlib/float_req_bl_0883.c [2022-11-25 22:35:07,242 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/data/939e2ce49/c78b68239ea1479da1a848d345155776/FLAG52e017b0e [2022-11-25 22:35:07,259 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/data/939e2ce49/c78b68239ea1479da1a848d345155776 [2022-11-25 22:35:07,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:35:07,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:35:07,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:35:07,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:35:07,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:35:07,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:35:07" (1/1) ... [2022-11-25 22:35:07,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d280b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:07, skipping insertion in model container [2022-11-25 22:35:07,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:35:07" (1/1) ... [2022-11-25 22:35:07,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:35:07,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:35:07,676 WARN L237 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_0f25a300-2298-4c4d-922b-62be03c91457/sv-benchmarks/c/float-newlib/float_req_bl_0883.c[14102,14115] [2022-11-25 22:35:07,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:35:07,695 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:35:07,810 WARN L237 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_0f25a300-2298-4c4d-922b-62be03c91457/sv-benchmarks/c/float-newlib/float_req_bl_0883.c[14102,14115] [2022-11-25 22:35:07,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:35:07,841 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:35:07,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:07 WrapperNode [2022-11-25 22:35:07,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:35:07,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:35:07,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:35:07,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:35:07,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:07" (1/1) ... [2022-11-25 22:35:07,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:07" (1/1) ... [2022-11-25 22:35:07,954 INFO L138 Inliner]: procedures = 26, calls = 192, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 742 [2022-11-25 22:35:07,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:35:07,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:35:07,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:35:07,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:35:07,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:07" (1/1) ... [2022-11-25 22:35:07,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:07" (1/1) ... [2022-11-25 22:35:07,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:07" (1/1) ... [2022-11-25 22:35:07,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:07" (1/1) ... [2022-11-25 22:35:08,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:07" (1/1) ... [2022-11-25 22:35:08,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:07" (1/1) ... [2022-11-25 22:35:08,079 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:07" (1/1) ... [2022-11-25 22:35:08,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:07" (1/1) ... [2022-11-25 22:35:08,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:35:08,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:35:08,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:35:08,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:35:08,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:07" (1/1) ... [2022-11-25 22:35:08,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:35:08,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:35:08,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:35:08,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:35:08,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:35:08,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 22:35:08,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:35:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-25 22:35:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 22:35:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-25 22:35:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2022-11-25 22:35:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2022-11-25 22:35:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-11-25 22:35:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:35:08,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:35:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 22:35:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:35:08,389 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:35:08,391 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:35:36,631 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:35:36,639 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:35:36,639 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-11-25 22:35:36,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:35:36 BoogieIcfgContainer [2022-11-25 22:35:36,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:35:36,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:35:36,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:35:36,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:35:36,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:35:07" (1/3) ... [2022-11-25 22:35:36,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365505d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:35:36, skipping insertion in model container [2022-11-25 22:35:36,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:07" (2/3) ... [2022-11-25 22:35:36,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365505d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:35:36, skipping insertion in model container [2022-11-25 22:35:36,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:35:36" (3/3) ... [2022-11-25 22:35:36,651 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0883.c [2022-11-25 22:35:36,671 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:35:36,671 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:35:36,746 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:35:36,753 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2f086cbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:35:36,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:35:36,761 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 181 states have (on average 1.729281767955801) internal successors, (313), 182 states have internal predecessors, (313), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 22:35:36,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 22:35:36,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:36,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:35:36,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:35:36,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:36,776 INFO L85 PathProgramCache]: Analyzing trace with hash -218926045, now seen corresponding path program 1 times [2022-11-25 22:35:36,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:35:36,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345145732] [2022-11-25 22:35:36,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:36,796 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:35:36,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:35:36,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:35:36,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 22:35:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:38,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 22:35:38,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:35:38,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:35:38,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:35:38,034 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:35:38,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345145732] [2022-11-25 22:35:38,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1345145732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:38,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:35:38,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:35:38,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779352774] [2022-11-25 22:35:38,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:38,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:35:38,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:35:38,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:35:38,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:35:38,088 INFO L87 Difference]: Start difference. First operand has 187 states, 181 states have (on average 1.729281767955801) internal successors, (313), 182 states have internal predecessors, (313), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-11-25 22:35:38,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:38,173 INFO L93 Difference]: Finished difference Result 371 states and 637 transitions. [2022-11-25 22:35:38,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:35:38,175 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-25 22:35:38,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:38,184 INFO L225 Difference]: With dead ends: 371 [2022-11-25 22:35:38,184 INFO L226 Difference]: Without dead ends: 183 [2022-11-25 22:35:38,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:35:38,191 INFO L413 NwaCegarLoop]: 246 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, 246 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 [2022-11-25 22:35:38,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:35:38,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-25 22:35:38,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2022-11-25 22:35:38,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 178 states have (on average 1.3202247191011236) internal successors, (235), 178 states have internal predecessors, (235), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 22:35:38,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 241 transitions. [2022-11-25 22:35:38,242 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 241 transitions. Word has length 13 [2022-11-25 22:35:38,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:38,242 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 241 transitions. [2022-11-25 22:35:38,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-11-25 22:35:38,243 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 241 transitions. [2022-11-25 22:35:38,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 22:35:38,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:38,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:35:38,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:35:38,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:35:38,467 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:35:38,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:38,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1136669304, now seen corresponding path program 1 times [2022-11-25 22:35:38,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:35:38,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021391034] [2022-11-25 22:35:38,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:38,469 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:35:38,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:35:38,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:35:38,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 22:35:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:39,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 22:35:39,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:35:40,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:35:40,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:35:40,030 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:35:40,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021391034] [2022-11-25 22:35:40,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2021391034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:40,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:35:40,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:35:40,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579305960] [2022-11-25 22:35:40,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:40,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:35:40,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:35:40,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:35:40,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:35:40,035 INFO L87 Difference]: Start difference. First operand 183 states and 241 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2022-11-25 22:35:43,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:35:43,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:43,937 INFO L93 Difference]: Finished difference Result 203 states and 262 transitions. [2022-11-25 22:35:43,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:35:43,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-25 22:35:43,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:43,973 INFO L225 Difference]: With dead ends: 203 [2022-11-25 22:35:43,973 INFO L226 Difference]: Without dead ends: 191 [2022-11-25 22:35:43,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:35:43,975 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 427 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:43,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 505 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 22:35:43,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-11-25 22:35:43,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 183. [2022-11-25 22:35:43,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 178 states have (on average 1.303370786516854) internal successors, (232), 178 states have internal predecessors, (232), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 22:35:43,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 238 transitions. [2022-11-25 22:35:43,996 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 238 transitions. Word has length 16 [2022-11-25 22:35:43,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:43,997 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 238 transitions. [2022-11-25 22:35:43,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2022-11-25 22:35:43,997 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 238 transitions. [2022-11-25 22:35:43,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 22:35:43,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:43,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:35:44,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:35:44,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:35:44,213 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:35:44,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:44,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1680361837, now seen corresponding path program 1 times [2022-11-25 22:35:44,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:35:44,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128321691] [2022-11-25 22:35:44,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:44,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:35:44,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:35:44,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:35:44,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 22:35:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:45,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-25 22:35:45,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:35:45,535 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:35:45,821 INFO L350 Elim1Store]: Elim1 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 34 treesize of output 18 [2022-11-25 22:35:46,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:35:46,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:35:46,411 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:35:46,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128321691] [2022-11-25 22:35:46,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128321691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:46,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:35:46,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 22:35:46,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173945918] [2022-11-25 22:35:46,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:46,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:35:46,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:35:46,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:35:46,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:35:46,414 INFO L87 Difference]: Start difference. First operand 183 states and 238 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:35:49,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:49,094 INFO L93 Difference]: Finished difference Result 234 states and 308 transitions. [2022-11-25 22:35:49,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:35:49,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-25 22:35:49,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:49,097 INFO L225 Difference]: With dead ends: 234 [2022-11-25 22:35:49,097 INFO L226 Difference]: Without dead ends: 62 [2022-11-25 22:35:49,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:35:49,099 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 283 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:49,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 100 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 22:35:49,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-25 22:35:49,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-25 22:35:49,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 61 states have internal predecessors, (76), 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) [2022-11-25 22:35:49,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 76 transitions. [2022-11-25 22:35:49,112 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 76 transitions. Word has length 18 [2022-11-25 22:35:49,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:49,112 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 76 transitions. [2022-11-25 22:35:49,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:35:49,112 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 76 transitions. [2022-11-25 22:35:49,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 22:35:49,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:49,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:35:49,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:35:49,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:35:49,327 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:35:49,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:49,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1276009850, now seen corresponding path program 1 times [2022-11-25 22:35:49,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:35:49,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335297660] [2022-11-25 22:35:49,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:49,328 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:35:49,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:35:49,329 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:35:49,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 22:35:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:50,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 22:35:50,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:35:51,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:35:51,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:35:51,565 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:35:51,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335297660] [2022-11-25 22:35:51,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1335297660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:51,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:35:51,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 22:35:51,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845164269] [2022-11-25 22:35:51,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:51,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 22:35:51,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:35:51,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 22:35:51,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:35:51,567 INFO L87 Difference]: Start difference. First operand 62 states and 76 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 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) [2022-11-25 22:35:54,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:54,581 INFO L93 Difference]: Finished difference Result 70 states and 83 transitions. [2022-11-25 22:35:54,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 22:35:54,586 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-25 22:35:54,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:54,587 INFO L225 Difference]: With dead ends: 70 [2022-11-25 22:35:54,587 INFO L226 Difference]: Without dead ends: 61 [2022-11-25 22:35:54,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-11-25 22:35:54,588 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 226 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:54,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 368 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 22:35:54,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-25 22:35:54,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-25 22:35:54,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 60 states have internal predecessors, (73), 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) [2022-11-25 22:35:54,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 73 transitions. [2022-11-25 22:35:54,600 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 73 transitions. Word has length 21 [2022-11-25 22:35:54,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:54,600 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 73 transitions. [2022-11-25 22:35:54,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 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) [2022-11-25 22:35:54,601 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2022-11-25 22:35:54,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 22:35:54,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:54,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:35:54,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:35:54,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:35:54,806 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:35:54,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:54,806 INFO L85 PathProgramCache]: Analyzing trace with hash 438154790, now seen corresponding path program 1 times [2022-11-25 22:35:54,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:35:54,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25433989] [2022-11-25 22:35:54,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:54,809 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:35:54,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:35:54,810 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:35:54,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 22:35:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:55,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-25 22:35:55,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:35:55,996 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:35:57,306 INFO L350 Elim1Store]: Elim1 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 60 treesize of output 32 [2022-11-25 22:35:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:35:57,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:35:57,937 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:35:57,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25433989] [2022-11-25 22:35:57,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25433989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:57,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:35:57,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 22:35:57,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667758778] [2022-11-25 22:35:57,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:57,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 22:35:57,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:35:57,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 22:35:57,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:35:57,940 INFO L87 Difference]: Start difference. First operand 61 states and 73 transitions. Second operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 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) [2022-11-25 22:36:00,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:00,936 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2022-11-25 22:36:00,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 22:36:00,937 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-25 22:36:00,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:00,938 INFO L225 Difference]: With dead ends: 69 [2022-11-25 22:36:00,938 INFO L226 Difference]: Without dead ends: 59 [2022-11-25 22:36:00,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2022-11-25 22:36:00,939 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 105 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:00,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 382 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 22:36:00,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-25 22:36:00,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-25 22:36:00,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.206896551724138) internal successors, (70), 58 states have internal predecessors, (70), 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) [2022-11-25 22:36:00,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2022-11-25 22:36:00,951 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 21 [2022-11-25 22:36:00,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:00,951 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2022-11-25 22:36:00,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 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) [2022-11-25 22:36:00,952 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2022-11-25 22:36:00,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 22:36:00,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:00,953 INFO L195 NwaCegarLoop]: 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] [2022-11-25 22:36:00,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:36:01,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:36:01,159 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:36:01,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:01,159 INFO L85 PathProgramCache]: Analyzing trace with hash 687114061, now seen corresponding path program 1 times [2022-11-25 22:36:01,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:36:01,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360611719] [2022-11-25 22:36:01,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:01,160 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:36:01,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:36:01,162 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:36:01,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-25 22:36:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:02,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 22:36:02,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:36:04,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:36:04,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:36:04,106 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:36:04,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360611719] [2022-11-25 22:36:04,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360611719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:04,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:04,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 22:36:04,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929511428] [2022-11-25 22:36:04,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:04,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 22:36:04,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:36:04,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 22:36:04,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:36:04,111 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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) [2022-11-25 22:36:07,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:07,250 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2022-11-25 22:36:07,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 22:36:07,251 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-25 22:36:07,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:07,252 INFO L225 Difference]: With dead ends: 76 [2022-11-25 22:36:07,252 INFO L226 Difference]: Without dead ends: 67 [2022-11-25 22:36:07,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2022-11-25 22:36:07,253 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 211 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:07,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 414 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 22:36:07,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-25 22:36:07,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 59. [2022-11-25 22:36:07,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 58 states have internal predecessors, (68), 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) [2022-11-25 22:36:07,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2022-11-25 22:36:07,264 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 28 [2022-11-25 22:36:07,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:07,264 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2022-11-25 22:36:07,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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) [2022-11-25 22:36:07,264 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2022-11-25 22:36:07,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-25 22:36:07,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:07,266 INFO L195 NwaCegarLoop]: 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] [2022-11-25 22:36:07,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-25 22:36:07,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:36:07,480 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:36:07,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:07,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1236711218, now seen corresponding path program 1 times [2022-11-25 22:36:07,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:36:07,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982271785] [2022-11-25 22:36:07,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:07,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:36:07,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:36:07,483 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:36:07,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-25 22:36:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:08,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 22:36:08,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:36:09,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:36:09,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:36:09,393 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:36:09,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982271785] [2022-11-25 22:36:09,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1982271785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:09,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:09,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 22:36:09,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419361326] [2022-11-25 22:36:09,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:09,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:36:09,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:36:09,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:36:09,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:36:09,399 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:10,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:10,148 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2022-11-25 22:36:10,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:36:10,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-25 22:36:10,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:10,148 INFO L225 Difference]: With dead ends: 67 [2022-11-25 22:36:10,148 INFO L226 Difference]: Without dead ends: 34 [2022-11-25 22:36:10,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:36:10,149 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 63 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:10,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 129 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:36:10,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-25 22:36:10,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-25 22:36:10,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.0) internal successors, (33), 33 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2022-11-25 22:36:10,176 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 30 [2022-11-25 22:36:10,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:10,178 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2022-11-25 22:36:10,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:10,179 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2022-11-25 22:36:10,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 22:36:10,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:10,181 INFO L195 NwaCegarLoop]: 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, 1] [2022-11-25 22:36:10,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-25 22:36:10,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:36:10,383 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:36:10,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:10,383 INFO L85 PathProgramCache]: Analyzing trace with hash 212896805, now seen corresponding path program 1 times [2022-11-25 22:36:10,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:36:10,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [271825632] [2022-11-25 22:36:10,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:10,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:36:10,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:36:10,389 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:36:10,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-25 22:36:11,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:36:11,369 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-25 22:36:11,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 139 [2022-11-25 22:36:11,374 INFO L158 Benchmark]: Toolchain (without parser) took 64105.64ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 36.3MB in the beginning and 56.3MB in the end (delta: -20.0MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-11-25 22:36:11,375 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 46.3MB in the beginning and 46.3MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:36:11,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 572.29ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 36.2MB in the beginning and 74.1MB in the end (delta: -37.9MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2022-11-25 22:36:11,375 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.20ms. Allocated memory is still 96.5MB. Free memory was 74.1MB in the beginning and 69.6MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:36:11,376 INFO L158 Benchmark]: Boogie Preprocessor took 134.62ms. Allocated memory is still 96.5MB. Free memory was 69.6MB in the beginning and 64.8MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:36:11,376 INFO L158 Benchmark]: RCFGBuilder took 28536.68ms. Allocated memory is still 96.5MB. Free memory was 64.8MB in the beginning and 60.5MB in the end (delta: 4.3MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2022-11-25 22:36:11,376 INFO L158 Benchmark]: TraceAbstraction took 34728.61ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 56.3MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2022-11-25 22:36:11,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 46.3MB in the beginning and 46.3MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 572.29ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 36.2MB in the beginning and 74.1MB in the end (delta: -37.9MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 126.20ms. Allocated memory is still 96.5MB. Free memory was 74.1MB in the beginning and 69.6MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 134.62ms. Allocated memory is still 96.5MB. Free memory was 69.6MB in the beginning and 64.8MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 28536.68ms. Allocated memory is still 96.5MB. Free memory was 64.8MB in the beginning and 60.5MB in the end (delta: 4.3MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * TraceAbstraction took 34728.61ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 56.3MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-25 22:36:11,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/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: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f25a300-2298-4c4d-922b-62be03c91457/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9) with exit command (exit)) Received EOF on stdin. No stderr output.