./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/bary_diverge.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/bary_diverge.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh --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 b9d207296596aa3375527680ff88bb2bc1830663ee47f0fb08df7239383517f9 --- 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-2329fc7 [2022-12-14 06:17:50,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:17:50,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:17:50,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:17:50,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:17:50,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:17:50,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:17:50,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:17:50,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:17:50,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:17:50,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:17:50,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:17:50,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:17:50,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:17:50,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:17:50,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:17:50,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:17:50,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:17:50,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:17:50,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:17:50,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:17:50,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:17:50,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:17:50,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:17:50,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:17:50,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:17:50,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:17:50,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:17:50,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:17:50,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:17:50,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:17:50,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:17:50,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:17:50,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:17:50,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:17:50,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:17:50,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:17:50,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:17:50,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:17:50,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:17:50,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:17:50,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:17:50,939 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:17:50,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:17:50,940 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:17:50,940 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:17:50,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:17:50,941 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:17:50,941 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:17:50,941 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:17:50,942 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:17:50,942 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:17:50,942 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:17:50,942 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:17:50,942 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:17:50,942 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:17:50,943 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:17:50,943 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:17:50,943 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:17:50,943 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:17:50,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:17:50,944 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:17:50,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:17:50,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:17:50,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:17:50,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:17:50,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:17:50,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:17:50,945 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:17:50,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:17:50,946 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:17:50,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:17:50,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:17:50,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:17:50,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:17:50,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:17:50,947 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:17:50,947 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:17:50,947 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:17:50,947 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:17:50,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:17:50,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:17:50,948 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:17:50,948 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_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9d207296596aa3375527680ff88bb2bc1830663ee47f0fb08df7239383517f9 [2022-12-14 06:17:51,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:17:51,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:17:51,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:17:51,158 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:17:51,158 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:17:51,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/float-benchs/bary_diverge.c [2022-12-14 06:17:53,692 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:17:53,829 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:17:53,829 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/sv-benchmarks/c/float-benchs/bary_diverge.c [2022-12-14 06:17:53,834 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/data/0b5a3047d/0acbe5b2cfac40ed961c812c984297c3/FLAG861678c33 [2022-12-14 06:17:54,259 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/data/0b5a3047d/0acbe5b2cfac40ed961c812c984297c3 [2022-12-14 06:17:54,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:17:54,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:17:54,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:17:54,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:17:54,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:17:54,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:17:54" (1/1) ... [2022-12-14 06:17:54,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3015fc29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:54, skipping insertion in model container [2022-12-14 06:17:54,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:17:54" (1/1) ... [2022-12-14 06:17:54,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:17:54,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:17:54,375 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_b75cae7b-7652-4196-a05c-5a30d2e52d72/sv-benchmarks/c/float-benchs/bary_diverge.c[632,645] [2022-12-14 06:17:54,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:17:54,394 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:17:54,402 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_b75cae7b-7652-4196-a05c-5a30d2e52d72/sv-benchmarks/c/float-benchs/bary_diverge.c[632,645] [2022-12-14 06:17:54,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:17:54,415 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:17:54,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:54 WrapperNode [2022-12-14 06:17:54,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:17:54,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:17:54,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:17:54,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:17:54,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:54" (1/1) ... [2022-12-14 06:17:54,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:54" (1/1) ... [2022-12-14 06:17:54,438 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 69 [2022-12-14 06:17:54,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:17:54,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:17:54,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:17:54,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:17:54,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:54" (1/1) ... [2022-12-14 06:17:54,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:54" (1/1) ... [2022-12-14 06:17:54,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:54" (1/1) ... [2022-12-14 06:17:54,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:54" (1/1) ... [2022-12-14 06:17:54,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:54" (1/1) ... [2022-12-14 06:17:54,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:54" (1/1) ... [2022-12-14 06:17:54,451 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:54" (1/1) ... [2022-12-14 06:17:54,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:54" (1/1) ... [2022-12-14 06:17:54,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:17:54,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:17:54,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:17:54,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:17:54,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:54" (1/1) ... [2022-12-14 06:17:54,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:17:54,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:17:54,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:17:54,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:17:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:17:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2022-12-14 06:17:54,498 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2022-12-14 06:17:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:17:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:17:54,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:17:54,565 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:17:54,566 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:17:54,647 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:17:54,696 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:17:54,696 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:17:54,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:17:54 BoogieIcfgContainer [2022-12-14 06:17:54,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:17:54,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:17:54,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:17:54,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:17:54,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:17:54" (1/3) ... [2022-12-14 06:17:54,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5a24a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:17:54, skipping insertion in model container [2022-12-14 06:17:54,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:54" (2/3) ... [2022-12-14 06:17:54,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5a24a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:17:54, skipping insertion in model container [2022-12-14 06:17:54,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:17:54" (3/3) ... [2022-12-14 06:17:54,704 INFO L112 eAbstractionObserver]: Analyzing ICFG bary_diverge.c [2022-12-14 06:17:54,718 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:17:54,718 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:17:54,751 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:17:54,756 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;@21a75020, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:17:54,756 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:17:54,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 06:17:54,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 06:17:54,764 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:17:54,764 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:17:54,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:17:54,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:17:54,769 INFO L85 PathProgramCache]: Analyzing trace with hash -539254918, now seen corresponding path program 1 times [2022-12-14 06:17:54,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:17:54,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144662925] [2022-12-14 06:17:54,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:17:54,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:17:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:17:54,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:17:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:17:54,894 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 06:17:54,895 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:17:54,896 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 06:17:54,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:17:54,900 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 06:17:54,903 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:17:54,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:17:54 BoogieIcfgContainer [2022-12-14 06:17:54,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:17:54,919 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:17:54,919 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:17:54,919 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:17:54,920 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:17:54" (3/4) ... [2022-12-14 06:17:54,922 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 06:17:54,922 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:17:54,923 INFO L158 Benchmark]: Toolchain (without parser) took 660.69ms. Allocated memory is still 125.8MB. Free memory was 91.2MB in the beginning and 48.1MB in the end (delta: 43.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-12-14 06:17:54,923 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 125.8MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:17:54,930 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.93ms. Allocated memory is still 125.8MB. Free memory was 91.2MB in the beginning and 80.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 06:17:54,930 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.91ms. Allocated memory is still 125.8MB. Free memory was 80.3MB in the beginning and 79.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:17:54,931 INFO L158 Benchmark]: Boogie Preprocessor took 13.89ms. Allocated memory is still 125.8MB. Free memory was 79.1MB in the beginning and 77.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:17:54,931 INFO L158 Benchmark]: RCFGBuilder took 244.68ms. Allocated memory is still 125.8MB. Free memory was 77.8MB in the beginning and 64.4MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 06:17:54,933 INFO L158 Benchmark]: TraceAbstraction took 219.34ms. Allocated memory is still 125.8MB. Free memory was 63.6MB in the beginning and 48.1MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 06:17:54,934 INFO L158 Benchmark]: Witness Printer took 3.22ms. Allocated memory is still 125.8MB. Free memory was 48.1MB in the beginning and 48.1MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:17:54,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 125.8MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 152.93ms. Allocated memory is still 125.8MB. Free memory was 91.2MB in the beginning and 80.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.91ms. Allocated memory is still 125.8MB. Free memory was 80.3MB in the beginning and 79.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.89ms. Allocated memory is still 125.8MB. Free memory was 79.1MB in the beginning and 77.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 244.68ms. Allocated memory is still 125.8MB. Free memory was 77.8MB in the beginning and 64.4MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 219.34ms. Allocated memory is still 125.8MB. Free memory was 63.6MB in the beginning and 48.1MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 3.22ms. Allocated memory is still 125.8MB. Free memory was 48.1MB in the beginning and 48.1MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 36, overapproximation of someBinaryArithmeticFLOAToperation at line 47. Possible FailurePath: [L19] BOOLEAN INIT; [L20] float C1, I; [L34] static float X,Y,Z; [L55] int i; [L57] INIT = TRUE VAL [C1=0, I=0, INIT=1, X=0, Y=0, Z=0] [L58] CALL, EXPR RANDOM_INPUT() VAL [C1=0, I=0, INIT=1, X=0, Y=0, Z=0] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -1.f && x <= 1.f) [L12] COND FALSE !(!cond) [L26] RET assume_abort_if_not(x >= -1.f && x <= 1.f) [L27] return x; [L58] RET, EXPR RANDOM_INPUT() VAL [C1=0, I=0, INIT=1, RANDOM_INPUT()=53, X=0, Y=0, Z=0] [L58] C1 = RANDOM_INPUT() [L59] CALL, EXPR RANDOM_INPUT() VAL [C1=53, I=0, INIT=1, X=0, Y=0, Z=0] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -1.f && x <= 1.f) [L12] COND FALSE !(!cond) [L26] RET assume_abort_if_not(x >= -1.f && x <= 1.f) [L27] return x; [L59] RET, EXPR RANDOM_INPUT() VAL [C1=53, I=0, INIT=1, RANDOM_INPUT()=0, X=0, Y=0, Z=0] [L59] I = RANDOM_INPUT() [L61] i = 0 VAL [C1=53, i=0, I=0, INIT=1, X=0, Y=0, Z=0] [L61] COND TRUE i < 3600000 [L62] CALL bary() [L36] COND TRUE C1 > 0.f [L37] Z = Y [L38] Y = X [L41] COND TRUE INIT == TRUE [L42] X = I [L43] Y = I [L44] Z = I [L50] CALL __VERIFIER_assert(X >= -5.f && X <= 5.f) [L14] COND TRUE !(cond) VAL [\old(cond)=0, C1=53, cond=0, I=0, INIT=1, X=0, Y=0, Z=0] [L14] reach_error() VAL [\old(cond)=0, C1=53, cond=0, I=0, INIT=1, X=0, Y=0, Z=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 06:17:54,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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 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_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/bary_diverge.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh --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 b9d207296596aa3375527680ff88bb2bc1830663ee47f0fb08df7239383517f9 --- 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-2329fc7 [2022-12-14 06:17:56,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:17:56,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:17:56,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:17:56,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:17:56,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:17:56,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:17:56,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:17:56,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:17:56,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:17:56,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:17:56,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:17:56,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:17:56,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:17:56,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:17:56,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:17:56,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:17:56,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:17:56,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:17:56,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:17:56,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:17:56,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:17:56,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:17:56,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:17:56,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:17:56,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:17:56,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:17:56,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:17:56,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:17:56,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:17:56,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:17:56,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:17:56,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:17:56,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:17:56,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:17:56,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:17:56,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:17:56,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:17:56,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:17:56,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:17:56,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:17:56,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 06:17:56,770 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:17:56,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:17:56,771 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:17:56,771 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:17:56,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:17:56,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:17:56,772 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:17:56,772 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:17:56,772 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:17:56,772 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:17:56,772 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:17:56,772 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:17:56,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:17:56,773 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:17:56,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:17:56,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:17:56,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:17:56,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:17:56,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:17:56,774 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:17:56,775 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 06:17:56,775 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 06:17:56,775 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:17:56,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:17:56,775 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:17:56,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:17:56,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:17:56,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 06:17:56,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:17:56,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:17:56,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:17:56,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:17:56,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:17:56,777 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 06:17:56,777 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 06:17:56,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:17:56,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:17:56,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 06:17:56,778 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_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9d207296596aa3375527680ff88bb2bc1830663ee47f0fb08df7239383517f9 [2022-12-14 06:17:57,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:17:57,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:17:57,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:17:57,022 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:17:57,022 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:17:57,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/float-benchs/bary_diverge.c [2022-12-14 06:17:59,676 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:17:59,811 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:17:59,811 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/sv-benchmarks/c/float-benchs/bary_diverge.c [2022-12-14 06:17:59,816 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/data/3269902bb/93dfba4898d143d1be0a884d14de3e06/FLAG4f33b16d9 [2022-12-14 06:17:59,828 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/data/3269902bb/93dfba4898d143d1be0a884d14de3e06 [2022-12-14 06:17:59,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:17:59,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:17:59,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:17:59,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:17:59,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:17:59,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:17:59" (1/1) ... [2022-12-14 06:17:59,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78bae6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:59, skipping insertion in model container [2022-12-14 06:17:59,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:17:59" (1/1) ... [2022-12-14 06:17:59,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:17:59,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:17:59,975 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_b75cae7b-7652-4196-a05c-5a30d2e52d72/sv-benchmarks/c/float-benchs/bary_diverge.c[632,645] [2022-12-14 06:17:59,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:17:59,999 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:18:00,008 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_b75cae7b-7652-4196-a05c-5a30d2e52d72/sv-benchmarks/c/float-benchs/bary_diverge.c[632,645] [2022-12-14 06:18:00,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:18:00,023 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:18:00,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:00 WrapperNode [2022-12-14 06:18:00,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:18:00,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:18:00,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:18:00,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:18:00,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:00" (1/1) ... [2022-12-14 06:18:00,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:00" (1/1) ... [2022-12-14 06:18:00,050 INFO L138 Inliner]: procedures = 18, calls = 16, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 70 [2022-12-14 06:18:00,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:18:00,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:18:00,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:18:00,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:18:00,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:00" (1/1) ... [2022-12-14 06:18:00,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:00" (1/1) ... [2022-12-14 06:18:00,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:00" (1/1) ... [2022-12-14 06:18:00,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:00" (1/1) ... [2022-12-14 06:18:00,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:00" (1/1) ... [2022-12-14 06:18:00,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:00" (1/1) ... [2022-12-14 06:18:00,067 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:00" (1/1) ... [2022-12-14 06:18:00,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:00" (1/1) ... [2022-12-14 06:18:00,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:18:00,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:18:00,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:18:00,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:18:00,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:00" (1/1) ... [2022-12-14 06:18:00,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:18:00,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:18:00,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:18:00,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:18:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:18:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2022-12-14 06:18:00,132 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2022-12-14 06:18:00,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 06:18:00,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:18:00,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:18:00,219 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:18:00,221 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:18:02,376 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:18:02,380 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:18:02,380 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:18:02,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:18:02 BoogieIcfgContainer [2022-12-14 06:18:02,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:18:02,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:18:02,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:18:02,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:18:02,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:17:59" (1/3) ... [2022-12-14 06:18:02,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d242d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:18:02, skipping insertion in model container [2022-12-14 06:18:02,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:00" (2/3) ... [2022-12-14 06:18:02,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d242d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:18:02, skipping insertion in model container [2022-12-14 06:18:02,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:18:02" (3/3) ... [2022-12-14 06:18:02,387 INFO L112 eAbstractionObserver]: Analyzing ICFG bary_diverge.c [2022-12-14 06:18:02,400 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:18:02,400 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:18:02,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:18:02,437 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;@5e171b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:18:02,437 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:18:02,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 06:18:02,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:18:02,447 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:18:02,447 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:18:02,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:18:02,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:18:02,451 INFO L85 PathProgramCache]: Analyzing trace with hash 372835822, now seen corresponding path program 1 times [2022-12-14 06:18:02,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:18:02,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960461007] [2022-12-14 06:18:02,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:18:02,461 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 [2022-12-14 06:18:02,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:18:02,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:18:02,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:18:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:18:02,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 06:18:02,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:18:02,575 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 06:18:02,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:18:02,576 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:18:02,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960461007] [2022-12-14 06:18:02,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960461007] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:18:02,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:18:02,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:18:02,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721568076] [2022-12-14 06:18:02,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:18:02,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:18:02,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:18:02,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:18:02,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:18:02,604 INFO L87 Difference]: Start difference. First operand has 32 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 06:18:02,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:18:02,626 INFO L93 Difference]: Finished difference Result 61 states and 83 transitions. [2022-12-14 06:18:02,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:18:02,632 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2022-12-14 06:18:02,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:18:02,638 INFO L225 Difference]: With dead ends: 61 [2022-12-14 06:18:02,638 INFO L226 Difference]: Without dead ends: 28 [2022-12-14 06:18:02,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:18:02,643 INFO L413 NwaCegarLoop]: 38 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, 38 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 [2022-12-14 06:18:02,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:18:02,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-14 06:18:02,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-12-14 06:18:02,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 06:18:02,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2022-12-14 06:18:02,670 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 22 [2022-12-14 06:18:02,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:18:02,670 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2022-12-14 06:18:02,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 06:18:02,670 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-12-14 06:18:02,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:18:02,671 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:18:02,671 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:18:02,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:18:02,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:18:02,873 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:18:02,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:18:02,876 INFO L85 PathProgramCache]: Analyzing trace with hash -920244306, now seen corresponding path program 1 times [2022-12-14 06:18:02,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:18:02,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74138170] [2022-12-14 06:18:02,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:18:02,879 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 [2022-12-14 06:18:02,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:18:02,882 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:18:02,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:18:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:18:02,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 06:18:02,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:18:03,470 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:18:03,470 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:18:03,471 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:18:03,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74138170] [2022-12-14 06:18:03,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74138170] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:18:03,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:18:03,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 06:18:03,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030755183] [2022-12-14 06:18:03,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:18:03,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:18:03,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:18:03,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:18:03,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:18:03,474 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 06:18:06,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 06:18:06,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:18:06,729 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2022-12-14 06:18:06,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 06:18:06,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-12-14 06:18:06,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:18:06,731 INFO L225 Difference]: With dead ends: 54 [2022-12-14 06:18:06,732 INFO L226 Difference]: Without dead ends: 52 [2022-12-14 06:18:06,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-12-14 06:18:06,733 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 58 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:18:06,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 190 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 136 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 06:18:06,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-14 06:18:06,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45. [2022-12-14 06:18:06,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 35 states have internal predecessors, (39), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 06:18:06,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2022-12-14 06:18:06,740 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 22 [2022-12-14 06:18:06,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:18:06,741 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2022-12-14 06:18:06,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 06:18:06,741 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2022-12-14 06:18:06,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:18:06,742 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:18:06,742 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:18:06,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 06:18:06,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:18:06,944 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:18:06,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:18:06,946 INFO L85 PathProgramCache]: Analyzing trace with hash -920184724, now seen corresponding path program 1 times [2022-12-14 06:18:06,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:18:06,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630779968] [2022-12-14 06:18:06,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:18:06,948 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 [2022-12-14 06:18:06,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:18:06,949 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:18:06,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:18:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:18:07,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 06:18:07,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:18:07,249 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 06:18:07,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:18:07,250 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:18:07,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1630779968] [2022-12-14 06:18:07,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1630779968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:18:07,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:18:07,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:18:07,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672666174] [2022-12-14 06:18:07,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:18:07,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:18:07,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:18:07,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:18:07,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:18:07,256 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 06:18:09,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 06:18:09,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:18:09,354 INFO L93 Difference]: Finished difference Result 85 states and 98 transitions. [2022-12-14 06:18:09,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:18:09,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-12-14 06:18:09,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:18:09,379 INFO L225 Difference]: With dead ends: 85 [2022-12-14 06:18:09,379 INFO L226 Difference]: Without dead ends: 63 [2022-12-14 06:18:09,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:18:09,380 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 10 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:18:09,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 57 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 06:18:09,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-12-14 06:18:09,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2022-12-14 06:18:09,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 46 states have (on average 1.108695652173913) internal successors, (51), 48 states have internal predecessors, (51), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-14 06:18:09,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2022-12-14 06:18:09,388 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 22 [2022-12-14 06:18:09,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:18:09,388 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2022-12-14 06:18:09,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 06:18:09,389 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2022-12-14 06:18:09,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 06:18:09,389 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:18:09,389 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:18:09,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 06:18:09,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:18:09,591 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:18:09,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:18:09,593 INFO L85 PathProgramCache]: Analyzing trace with hash -961441789, now seen corresponding path program 1 times [2022-12-14 06:18:09,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:18:09,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308567097] [2022-12-14 06:18:09,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:18:09,595 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 [2022-12-14 06:18:09,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:18:09,598 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:18:09,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:18:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:18:09,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 06:18:09,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:18:10,048 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-14 06:18:10,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:18:10,048 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:18:10,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308567097] [2022-12-14 06:18:10,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308567097] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:18:10,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:18:10,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 06:18:10,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759355741] [2022-12-14 06:18:10,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:18:10,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:18:10,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:18:10,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:18:10,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:18:10,051 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 06:18:12,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 06:18:13,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:18:13,185 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2022-12-14 06:18:13,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 06:18:13,186 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2022-12-14 06:18:13,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:18:13,187 INFO L225 Difference]: With dead ends: 83 [2022-12-14 06:18:13,187 INFO L226 Difference]: Without dead ends: 81 [2022-12-14 06:18:13,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-12-14 06:18:13,188 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 55 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:18:13,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 217 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 145 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 06:18:13,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-12-14 06:18:13,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 55. [2022-12-14 06:18:13,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 43 states have internal predecessors, (46), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 06:18:13,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2022-12-14 06:18:13,195 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 52 [2022-12-14 06:18:13,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:18:13,195 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2022-12-14 06:18:13,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 06:18:13,195 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2022-12-14 06:18:13,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 06:18:13,196 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:18:13,196 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:18:13,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 06:18:13,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:18:13,398 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:18:13,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:18:13,400 INFO L85 PathProgramCache]: Analyzing trace with hash -961382207, now seen corresponding path program 1 times [2022-12-14 06:18:13,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:18:13,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656989116] [2022-12-14 06:18:13,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:18:13,402 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 [2022-12-14 06:18:13,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:18:13,405 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:18:13,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:18:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:18:13,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 06:18:13,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:18:54,135 WARN L233 SmtUtils]: Spent 7.45s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:19:23,671 WARN L837 $PredicateComparison]: unable to prove that (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (let ((.cse4 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 50000001.0 100000000.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 30000001.0 100000000.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 20000001.0 100000000.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 5.0)) (.cse5 (fp.neg .cse4))) (or (exists ((~Z~0 (_ FloatingPoint 8 24))) (and (not (fp.leq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 ~Z~0) (fp.mul roundNearestTiesToEven .cse1 ~Z~0)) (fp.mul roundNearestTiesToEven .cse2 ~Z~0)) .cse3)) (fp.leq ~Z~0 .cse4) (fp.geq ~Z~0 .cse5))) (exists ((~Z~0 (_ FloatingPoint 8 24))) (and (fp.leq ~Z~0 .cse4) (not (fp.geq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 ~Z~0) (fp.mul roundNearestTiesToEven .cse1 ~Z~0)) (fp.mul roundNearestTiesToEven .cse2 ~Z~0)) (fp.neg .cse3))) (fp.geq ~Z~0 .cse5))))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) is different from false [2022-12-14 06:19:48,532 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 50000001.0 100000000.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 30000001.0 100000000.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 20000001.0 100000000.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 5.0)) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (exists ((~Z~0 (_ FloatingPoint 8 24))) (and (not (fp.leq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 ~Z~0) (fp.mul roundNearestTiesToEven .cse1 ~Z~0)) (fp.mul roundNearestTiesToEven .cse2 ~Z~0)) .cse3)) (fp.leq ~Z~0 .cse4))) (exists ((~Z~0 (_ FloatingPoint 8 24))) (and (fp.leq ~Z~0 .cse4) (not (fp.geq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 ~Z~0) (fp.mul roundNearestTiesToEven .cse1 ~Z~0)) (fp.mul roundNearestTiesToEven .cse2 ~Z~0)) (fp.neg .cse3))) (fp.geq ~Z~0 (fp.neg .cse4)))))) is different from false [2022-12-14 06:19:50,546 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 50000001.0 100000000.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 30000001.0 100000000.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 20000001.0 100000000.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 5.0)) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (exists ((~Z~0 (_ FloatingPoint 8 24))) (and (not (fp.leq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 ~Z~0) (fp.mul roundNearestTiesToEven .cse1 ~Z~0)) (fp.mul roundNearestTiesToEven .cse2 ~Z~0)) .cse3)) (fp.leq ~Z~0 .cse4))) (exists ((~Z~0 (_ FloatingPoint 8 24))) (and (fp.leq ~Z~0 .cse4) (not (fp.geq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 ~Z~0) (fp.mul roundNearestTiesToEven .cse1 ~Z~0)) (fp.mul roundNearestTiesToEven .cse2 ~Z~0)) (fp.neg .cse3))) (fp.geq ~Z~0 (fp.neg .cse4)))))) is different from true [2022-12-14 06:19:50,548 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 1 not checked. [2022-12-14 06:19:50,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:20:04,358 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~Y~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Z~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from false [2022-12-14 06:20:06,386 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~Y~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Z~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from true [2022-12-14 06:20:16,619 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from false [2022-12-14 06:20:18,649 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from true [2022-12-14 06:22:15,004 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~I~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~I~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~I~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from false [2022-12-14 06:22:41,887 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from true [2022-12-14 06:23:07,490 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse0 (fp.neg .cse1)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0))) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0))) (.cse4 ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0))) (.cse5 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (forall ((|v_ULTIMATE.start_main_#t~ret6#1_9| (_ FloatingPoint 8 24))) (or (not (fp.geq |v_ULTIMATE.start_main_#t~ret6#1_9| .cse0)) (not (fp.leq |v_ULTIMATE.start_main_#t~ret6#1_9| .cse1)) (fp.leq (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 |v_ULTIMATE.start_main_#t~ret6#1_9|) (fp.mul c_currentRoundingMode .cse3 |v_ULTIMATE.start_main_#t~ret6#1_9|)) (fp.mul c_currentRoundingMode .cse4 |v_ULTIMATE.start_main_#t~ret6#1_9|)) .cse5))) (forall ((|v_ULTIMATE.start_main_#t~ret6#1_9| (_ FloatingPoint 8 24))) (or (not (fp.geq |v_ULTIMATE.start_main_#t~ret6#1_9| .cse0)) (not (fp.leq |v_ULTIMATE.start_main_#t~ret6#1_9| .cse1)) (fp.geq (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 |v_ULTIMATE.start_main_#t~ret6#1_9|) (fp.mul c_currentRoundingMode .cse3 |v_ULTIMATE.start_main_#t~ret6#1_9|)) (fp.mul c_currentRoundingMode .cse4 |v_ULTIMATE.start_main_#t~ret6#1_9|)) (fp.neg .cse5))))))) is different from false [2022-12-14 06:23:09,540 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse0 (fp.neg .cse1)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0))) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0))) (.cse4 ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0))) (.cse5 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (forall ((|v_ULTIMATE.start_main_#t~ret6#1_9| (_ FloatingPoint 8 24))) (or (not (fp.geq |v_ULTIMATE.start_main_#t~ret6#1_9| .cse0)) (not (fp.leq |v_ULTIMATE.start_main_#t~ret6#1_9| .cse1)) (fp.leq (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 |v_ULTIMATE.start_main_#t~ret6#1_9|) (fp.mul c_currentRoundingMode .cse3 |v_ULTIMATE.start_main_#t~ret6#1_9|)) (fp.mul c_currentRoundingMode .cse4 |v_ULTIMATE.start_main_#t~ret6#1_9|)) .cse5))) (forall ((|v_ULTIMATE.start_main_#t~ret6#1_9| (_ FloatingPoint 8 24))) (or (not (fp.geq |v_ULTIMATE.start_main_#t~ret6#1_9| .cse0)) (not (fp.leq |v_ULTIMATE.start_main_#t~ret6#1_9| .cse1)) (fp.geq (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 |v_ULTIMATE.start_main_#t~ret6#1_9|) (fp.mul c_currentRoundingMode .cse3 |v_ULTIMATE.start_main_#t~ret6#1_9|)) (fp.mul c_currentRoundingMode .cse4 |v_ULTIMATE.start_main_#t~ret6#1_9|)) (fp.neg .cse5))))))) is different from true [2022-12-14 06:23:09,542 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:23:09,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656989116] [2022-12-14 06:23:09,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656989116] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:23:09,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1886949090] [2022-12-14 06:23:09,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:23:09,542 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 06:23:09,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 06:23:09,544 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 06:23:09,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-14 06:23:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:23:10,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 06:23:10,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:23:52,443 WARN L837 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (let ((.cse4 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 50000001.0 100000000.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 30000001.0 100000000.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 20000001.0 100000000.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 5.0)) (.cse5 (fp.neg .cse4))) (or (exists ((~Z~0 (_ FloatingPoint 8 24))) (and (not (fp.leq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 ~Z~0) (fp.mul roundNearestTiesToEven .cse1 ~Z~0)) (fp.mul roundNearestTiesToEven .cse2 ~Z~0)) .cse3)) (fp.leq ~Z~0 .cse4) (fp.geq ~Z~0 .cse5))) (exists ((~Z~0 (_ FloatingPoint 8 24))) (and (not (fp.geq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 ~Z~0) (fp.mul roundNearestTiesToEven .cse1 ~Z~0)) (fp.mul roundNearestTiesToEven .cse2 ~Z~0)) (fp.neg .cse3))) (fp.geq ~Z~0 .cse5)))))))) is different from false [2022-12-14 06:24:13,798 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 50000001.0 100000000.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 30000001.0 100000000.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 20000001.0 100000000.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 5.0)) (.cse5 (fp.neg .cse4))) (or (exists ((~Z~0 (_ FloatingPoint 8 24))) (and (not (fp.leq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 ~Z~0) (fp.mul roundNearestTiesToEven .cse1 ~Z~0)) (fp.mul roundNearestTiesToEven .cse2 ~Z~0)) .cse3)) (fp.leq ~Z~0 .cse4) (fp.geq ~Z~0 .cse5))) (exists ((~Z~0 (_ FloatingPoint 8 24))) (and (not (fp.geq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 ~Z~0) (fp.mul roundNearestTiesToEven .cse1 ~Z~0)) (fp.mul roundNearestTiesToEven .cse2 ~Z~0)) (fp.neg .cse3))) (fp.geq ~Z~0 .cse5)))))) is different from false [2022-12-14 06:24:15,813 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 50000001.0 100000000.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 30000001.0 100000000.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 20000001.0 100000000.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 5.0)) (.cse5 (fp.neg .cse4))) (or (exists ((~Z~0 (_ FloatingPoint 8 24))) (and (not (fp.leq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 ~Z~0) (fp.mul roundNearestTiesToEven .cse1 ~Z~0)) (fp.mul roundNearestTiesToEven .cse2 ~Z~0)) .cse3)) (fp.leq ~Z~0 .cse4) (fp.geq ~Z~0 .cse5))) (exists ((~Z~0 (_ FloatingPoint 8 24))) (and (not (fp.geq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 ~Z~0) (fp.mul roundNearestTiesToEven .cse1 ~Z~0)) (fp.mul roundNearestTiesToEven .cse2 ~Z~0)) (fp.neg .cse3))) (fp.geq ~Z~0 .cse5)))))) is different from true [2022-12-14 06:24:15,814 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 1 not checked. [2022-12-14 06:24:15,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:26:16,332 WARN L837 $PredicateComparison]: unable to prove that (or (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) is different from false [2022-12-14 06:26:18,365 WARN L859 $PredicateComparison]: unable to prove that (or (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) is different from true [2022-12-14 06:26:35,763 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (let ((.cse1 (fp.neg .cse2))) (or (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0)))) (and (fp.geq .cse0 .cse1) (fp.leq .cse0 .cse2))) (not (fp.leq c_~X~0 .cse2)) (not (fp.geq c_~X~0 .cse1))))) is different from false [2022-12-14 06:26:37,794 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (let ((.cse1 (fp.neg .cse2))) (or (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0)))) (and (fp.geq .cse0 .cse1) (fp.leq .cse0 .cse2))) (not (fp.leq c_~X~0 .cse2)) (not (fp.geq c_~X~0 .cse1))))) is different from true [2022-12-14 06:26:53,861 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (let ((.cse1 (fp.neg .cse2))) (or (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~I~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~I~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~I~0)))) (and (fp.geq .cse0 .cse1) (fp.leq .cse0 .cse2))) (not (fp.geq c_~I~0 .cse1)) (not (fp.leq c_~I~0 .cse2))))) is different from false [2022-12-14 06:26:55,890 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (let ((.cse1 (fp.neg .cse2))) (or (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~I~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~I~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~I~0)))) (and (fp.geq .cse0 .cse1) (fp.leq .cse0 .cse2))) (not (fp.geq c_~I~0 .cse1)) (not (fp.leq c_~I~0 .cse2))))) is different from true [2022-12-14 06:27:37,715 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (let ((.cse0 (fp.neg .cse2))) (or (not (fp.geq |c_ULTIMATE.start_main_#t~ret6#1| .cse0)) (let ((.cse1 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|)))) (and (fp.leq .cse1 .cse2) (fp.geq .cse1 .cse0))) (not (fp.leq |c_ULTIMATE.start_main_#t~ret6#1| .cse2))))) is different from true [2022-12-14 06:28:11,961 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0))) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0))) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode 5.0)) (.cse5 (fp.neg .cse4))) (and (forall ((|v_ULTIMATE.start_main_#t~ret6#1_12| (_ FloatingPoint 8 24))) (or (fp.geq (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 |v_ULTIMATE.start_main_#t~ret6#1_12|) (fp.mul c_currentRoundingMode .cse1 |v_ULTIMATE.start_main_#t~ret6#1_12|)) (fp.mul c_currentRoundingMode .cse2 |v_ULTIMATE.start_main_#t~ret6#1_12|)) (fp.neg .cse3)) (not (fp.leq |v_ULTIMATE.start_main_#t~ret6#1_12| .cse4)) (not (fp.geq |v_ULTIMATE.start_main_#t~ret6#1_12| .cse5)))) (forall ((|v_ULTIMATE.start_main_#t~ret6#1_12| (_ FloatingPoint 8 24))) (or (fp.leq (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 |v_ULTIMATE.start_main_#t~ret6#1_12|) (fp.mul c_currentRoundingMode .cse1 |v_ULTIMATE.start_main_#t~ret6#1_12|)) (fp.mul c_currentRoundingMode .cse2 |v_ULTIMATE.start_main_#t~ret6#1_12|)) .cse3) (not (fp.leq |v_ULTIMATE.start_main_#t~ret6#1_12| .cse4)) (not (fp.geq |v_ULTIMATE.start_main_#t~ret6#1_12| .cse5))))))) is different from false [2022-12-14 06:28:14,012 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0))) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0))) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode 5.0)) (.cse5 (fp.neg .cse4))) (and (forall ((|v_ULTIMATE.start_main_#t~ret6#1_12| (_ FloatingPoint 8 24))) (or (fp.geq (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 |v_ULTIMATE.start_main_#t~ret6#1_12|) (fp.mul c_currentRoundingMode .cse1 |v_ULTIMATE.start_main_#t~ret6#1_12|)) (fp.mul c_currentRoundingMode .cse2 |v_ULTIMATE.start_main_#t~ret6#1_12|)) (fp.neg .cse3)) (not (fp.leq |v_ULTIMATE.start_main_#t~ret6#1_12| .cse4)) (not (fp.geq |v_ULTIMATE.start_main_#t~ret6#1_12| .cse5)))) (forall ((|v_ULTIMATE.start_main_#t~ret6#1_12| (_ FloatingPoint 8 24))) (or (fp.leq (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 |v_ULTIMATE.start_main_#t~ret6#1_12|) (fp.mul c_currentRoundingMode .cse1 |v_ULTIMATE.start_main_#t~ret6#1_12|)) (fp.mul c_currentRoundingMode .cse2 |v_ULTIMATE.start_main_#t~ret6#1_12|)) .cse3) (not (fp.leq |v_ULTIMATE.start_main_#t~ret6#1_12| .cse4)) (not (fp.geq |v_ULTIMATE.start_main_#t~ret6#1_12| .cse5))))))) is different from true [2022-12-14 06:28:14,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1886949090] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:28:14,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754155046] [2022-12-14 06:28:14,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:28:14,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:28:14,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:28:14,014 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:28:14,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75cae7b-7652-4196-a05c-5a30d2e52d72/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 06:28:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:28:32,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 06:28:32,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:29:32,076 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 16 trivial. 1 not checked. [2022-12-14 06:29:32,076 INFO L328 TraceCheckSpWp]: Computing backward predicates...