./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1130a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1130a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI --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 2b4beb2d56fd26727d06ab5e32646878129bf03feaf41ed8f7c7126586310d6a --- 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-5e519f3 [2022-11-03 03:52:02,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:52:02,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:52:02,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:52:02,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:52:02,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:52:02,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:52:02,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:52:02,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:52:02,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:52:02,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:52:02,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:52:02,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:52:02,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:52:02,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:52:02,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:52:02,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:52:02,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:52:02,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:52:02,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:52:02,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:52:02,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:52:02,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:52:02,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:52:02,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:52:02,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:52:02,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:52:02,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:52:02,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:52:02,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:52:02,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:52:02,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:52:02,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:52:02,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:52:02,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:52:02,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:52:02,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:52:02,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:52:02,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:52:02,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:52:02,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:52:02,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:52:02,709 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:52:02,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:52:02,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:52:02,710 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:52:02,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:52:02,711 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:52:02,712 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:52:02,712 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:52:02,712 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:52:02,712 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:52:02,713 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:52:02,714 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:52:02,714 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:52:02,714 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:52:02,715 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:52:02,715 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:52:02,715 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:52:02,716 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:52:02,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:52:02,717 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:52:02,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:52:02,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:52:02,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:52:02,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:52:02,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:52:02,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:52:02,719 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:52:02,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:52:02,719 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:52:02,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:52:02,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:52:02,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:52:02,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:52:02,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:52:02,721 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:52:02,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:52:02,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:52:02,722 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:52:02,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:52:02,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:52:02,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:52:02,723 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_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b4beb2d56fd26727d06ab5e32646878129bf03feaf41ed8f7c7126586310d6a [2022-11-03 03:52:03,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:52:03,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:52:03,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:52:03,057 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:52:03,058 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:52:03,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/float-newlib/float_req_bl_1130a.c [2022-11-03 03:52:03,144 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/data/2a06ce308/73ca777d4a1c40cb9e0d03f01b65fb61/FLAG47dafad95 [2022-11-03 03:52:03,598 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:52:03,599 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/sv-benchmarks/c/float-newlib/float_req_bl_1130a.c [2022-11-03 03:52:03,605 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/data/2a06ce308/73ca777d4a1c40cb9e0d03f01b65fb61/FLAG47dafad95 [2022-11-03 03:52:03,985 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/data/2a06ce308/73ca777d4a1c40cb9e0d03f01b65fb61 [2022-11-03 03:52:03,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:52:03,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:52:03,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:52:03,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:52:03,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:52:03,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:52:03" (1/1) ... [2022-11-03 03:52:03,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cd428e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:03, skipping insertion in model container [2022-11-03 03:52:03,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:52:03" (1/1) ... [2022-11-03 03:52:04,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:52:04,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:52:04,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/sv-benchmarks/c/float-newlib/float_req_bl_1130a.c[2907,2920] [2022-11-03 03:52:04,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:52:04,279 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:52:04,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/sv-benchmarks/c/float-newlib/float_req_bl_1130a.c[2907,2920] [2022-11-03 03:52:04,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:52:04,324 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:52:04,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:04 WrapperNode [2022-11-03 03:52:04,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:52:04,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:52:04,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:52:04,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:52:04,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:04" (1/1) ... [2022-11-03 03:52:04,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:04" (1/1) ... [2022-11-03 03:52:04,372 INFO L138 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 187 [2022-11-03 03:52:04,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:52:04,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:52:04,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:52:04,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:52:04,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:04" (1/1) ... [2022-11-03 03:52:04,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:04" (1/1) ... [2022-11-03 03:52:04,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:04" (1/1) ... [2022-11-03 03:52:04,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:04" (1/1) ... [2022-11-03 03:52:04,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:04" (1/1) ... [2022-11-03 03:52:04,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:04" (1/1) ... [2022-11-03 03:52:04,403 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:04" (1/1) ... [2022-11-03 03:52:04,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:04" (1/1) ... [2022-11-03 03:52:04,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:52:04,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:52:04,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:52:04,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:52:04,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:04" (1/1) ... [2022-11-03 03:52:04,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:52:04,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:52:04,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:52:04,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:52:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:52:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:52:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:52:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:52:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-03 03:52:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-03 03:52:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:52:04,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:52:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:52:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-03 03:52:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:52:04,637 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:52:04,639 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:52:04,929 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:52:05,008 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:52:05,015 INFO L300 CfgBuilder]: Removed 14 assume(true) statements. [2022-11-03 03:52:05,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:52:05 BoogieIcfgContainer [2022-11-03 03:52:05,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:52:05,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:52:05,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:52:05,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:52:05,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:52:03" (1/3) ... [2022-11-03 03:52:05,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500c2abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:52:05, skipping insertion in model container [2022-11-03 03:52:05,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:04" (2/3) ... [2022-11-03 03:52:05,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500c2abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:52:05, skipping insertion in model container [2022-11-03 03:52:05,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:52:05" (3/3) ... [2022-11-03 03:52:05,034 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130a.c [2022-11-03 03:52:05,060 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:52:05,061 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:52:05,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:52:05,133 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;@5293ed8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:52:05,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:52:05,137 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 38 states have (on average 1.736842105263158) internal successors, (66), 39 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:05,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 03:52:05,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:05,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:05,145 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:05,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:05,150 INFO L85 PathProgramCache]: Analyzing trace with hash -371795694, now seen corresponding path program 1 times [2022-11-03 03:52:05,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:52:05,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513025202] [2022-11-03 03:52:05,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:05,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:52:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:05,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:05,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:52:05,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513025202] [2022-11-03 03:52:05,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513025202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:05,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:05,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:52:05,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754265408] [2022-11-03 03:52:05,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:05,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:52:05,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:52:05,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:52:05,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:52:05,371 INFO L87 Difference]: Start difference. First operand has 40 states, 38 states have (on average 1.736842105263158) internal successors, (66), 39 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:05,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:05,451 INFO L93 Difference]: Finished difference Result 78 states and 129 transitions. [2022-11-03 03:52:05,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:52:05,454 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-03 03:52:05,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:05,462 INFO L225 Difference]: With dead ends: 78 [2022-11-03 03:52:05,473 INFO L226 Difference]: Without dead ends: 37 [2022-11-03 03:52:05,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:52:05,480 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:05,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:52:05,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-03 03:52:05,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-03 03:52:05,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 36 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:05,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2022-11-03 03:52:05,515 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 50 transitions. Word has length 10 [2022-11-03 03:52:05,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:05,516 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 50 transitions. [2022-11-03 03:52:05,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:05,517 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2022-11-03 03:52:05,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 03:52:05,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:05,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:05,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:52:05,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:05,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:05,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1308950481, now seen corresponding path program 1 times [2022-11-03 03:52:05,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:52:05,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104123350] [2022-11-03 03:52:05,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:05,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:52:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:52:05,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 03:52:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:52:05,665 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 03:52:05,665 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 03:52:05,667 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:52:05,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:52:05,673 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 03:52:05,676 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:52:05,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:52:05 BoogieIcfgContainer [2022-11-03 03:52:05,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:52:05,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:52:05,699 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:52:05,699 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:52:05,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:52:05" (3/4) ... [2022-11-03 03:52:05,703 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 03:52:05,703 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:52:05,704 INFO L158 Benchmark]: Toolchain (without parser) took 1714.61ms. Allocated memory is still 111.1MB. Free memory was 75.5MB in the beginning and 69.8MB in the end (delta: 5.7MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2022-11-03 03:52:05,704 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory was 92.2MB in the beginning and 92.1MB in the end (delta: 70.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:52:05,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.36ms. Allocated memory is still 111.1MB. Free memory was 75.3MB in the beginning and 85.1MB in the end (delta: -9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 03:52:05,706 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.49ms. Allocated memory is still 111.1MB. Free memory was 85.1MB in the beginning and 83.0MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 03:52:05,706 INFO L158 Benchmark]: Boogie Preprocessor took 34.48ms. Allocated memory is still 111.1MB. Free memory was 82.6MB in the beginning and 80.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:52:05,707 INFO L158 Benchmark]: RCFGBuilder took 610.92ms. Allocated memory is still 111.1MB. Free memory was 80.9MB in the beginning and 59.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-03 03:52:05,707 INFO L158 Benchmark]: TraceAbstraction took 677.90ms. Allocated memory is still 111.1MB. Free memory was 59.2MB in the beginning and 70.4MB in the end (delta: -11.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:52:05,708 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 111.1MB. Free memory was 70.4MB in the beginning and 69.8MB in the end (delta: 516.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:52:05,711 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory was 92.2MB in the beginning and 92.1MB in the end (delta: 70.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.36ms. Allocated memory is still 111.1MB. Free memory was 75.3MB in the beginning and 85.1MB in the end (delta: -9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.49ms. Allocated memory is still 111.1MB. Free memory was 85.1MB in the beginning and 83.0MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.48ms. Allocated memory is still 111.1MB. Free memory was 82.6MB in the beginning and 80.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 610.92ms. Allocated memory is still 111.1MB. Free memory was 80.9MB in the beginning and 59.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 677.90ms. Allocated memory is still 111.1MB. Free memory was 59.2MB in the beginning and 70.4MB in the end (delta: -11.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 111.1MB. Free memory was 70.4MB in the beginning and 69.8MB in the end (delta: 516.2kB). 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: 137]: 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 136, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of bitwiseXOr at line 33, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L128] float x = 0.0f; [L129] float y = __VERIFIER_nondet_float(); [L131] COND TRUE (y < 0.0f || y > 0.0f) [L133] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=0, \old(y)=8589934601, one_fmod=1, x=0, y=8589934601, Zero_fmod={4:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [\old(x)=0, \old(y)=8589934601, hx=2139095040, hy=0, one_fmod=1, sx=2139095040, x=0, y=8589934601, Zero_fmod={4:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [\old(x)=0, \old(y)=8589934601, hx=2139095040, hy=0, one_fmod=1, sx=2139095040, x=0, y=8589934601, Zero_fmod={4:0}] [L133] RET, EXPR fmod_float(x, y) [L133] float res = fmod_float(x, y); [L136] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_fmod=1, res=8589934602, res == 0.0f && __signbit_float(res) == 0=0, x=0, y=8589934601, Zero_fmod={4:0}] [L136] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L137] reach_error() VAL [one_fmod=1, res=8589934602, x=0, y=8589934601, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 44 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2022-11-03 03:52:05,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/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_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1130a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI --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 2b4beb2d56fd26727d06ab5e32646878129bf03feaf41ed8f7c7126586310d6a --- 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-5e519f3 [2022-11-03 03:52:08,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:52:08,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:52:08,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:52:08,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:52:08,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:52:08,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:52:08,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:52:08,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:52:08,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:52:08,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:52:08,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:52:08,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:52:08,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:52:08,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:52:08,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:52:08,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:52:08,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:52:08,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:52:08,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:52:08,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:52:08,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:52:08,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:52:08,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:52:08,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:52:08,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:52:08,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:52:08,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:52:08,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:52:08,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:52:08,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:52:08,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:52:08,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:52:08,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:52:08,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:52:08,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:52:08,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:52:08,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:52:08,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:52:08,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:52:08,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:52:08,095 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-03 03:52:08,133 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:52:08,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:52:08,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:52:08,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:52:08,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:52:08,135 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:52:08,135 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:52:08,135 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:52:08,135 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:52:08,136 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:52:08,136 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:52:08,136 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:52:08,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:52:08,137 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:52:08,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:52:08,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:52:08,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:52:08,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:52:08,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:52:08,143 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 03:52:08,143 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 03:52:08,143 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 03:52:08,143 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:52:08,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:52:08,144 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:52:08,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:52:08,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:52:08,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 03:52:08,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:52:08,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:52:08,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:52:08,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:52:08,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:52:08,147 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 03:52:08,147 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 03:52:08,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:52:08,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:52:08,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 03:52:08,149 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_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b4beb2d56fd26727d06ab5e32646878129bf03feaf41ed8f7c7126586310d6a [2022-11-03 03:52:08,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:52:08,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:52:08,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:52:08,557 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:52:08,558 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:52:08,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/float-newlib/float_req_bl_1130a.c [2022-11-03 03:52:08,642 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/data/b4237d944/d20ce696576c4ea38f631eeeb5b41349/FLAGe07e8cda0 [2022-11-03 03:52:09,188 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:52:09,188 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/sv-benchmarks/c/float-newlib/float_req_bl_1130a.c [2022-11-03 03:52:09,203 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/data/b4237d944/d20ce696576c4ea38f631eeeb5b41349/FLAGe07e8cda0 [2022-11-03 03:52:09,558 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/data/b4237d944/d20ce696576c4ea38f631eeeb5b41349 [2022-11-03 03:52:09,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:52:09,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:52:09,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:52:09,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:52:09,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:52:09,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:52:09" (1/1) ... [2022-11-03 03:52:09,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@100ff7ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:09, skipping insertion in model container [2022-11-03 03:52:09,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:52:09" (1/1) ... [2022-11-03 03:52:09,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:52:09,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:52:09,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/sv-benchmarks/c/float-newlib/float_req_bl_1130a.c[2907,2920] [2022-11-03 03:52:09,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:52:09,923 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:52:09,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/sv-benchmarks/c/float-newlib/float_req_bl_1130a.c[2907,2920] [2022-11-03 03:52:09,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:52:10,010 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:52:10,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:10 WrapperNode [2022-11-03 03:52:10,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:52:10,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:52:10,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:52:10,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:52:10,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:10" (1/1) ... [2022-11-03 03:52:10,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:10" (1/1) ... [2022-11-03 03:52:10,083 INFO L138 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 187 [2022-11-03 03:52:10,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:52:10,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:52:10,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:52:10,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:52:10,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:10" (1/1) ... [2022-11-03 03:52:10,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:10" (1/1) ... [2022-11-03 03:52:10,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:10" (1/1) ... [2022-11-03 03:52:10,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:10" (1/1) ... [2022-11-03 03:52:10,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:10" (1/1) ... [2022-11-03 03:52:10,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:10" (1/1) ... [2022-11-03 03:52:10,147 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:10" (1/1) ... [2022-11-03 03:52:10,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:10" (1/1) ... [2022-11-03 03:52:10,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:52:10,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:52:10,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:52:10,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:52:10,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:10" (1/1) ... [2022-11-03 03:52:10,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:52:10,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:52:10,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:52:10,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:52:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:52:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-11-03 03:52:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 03:52:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:52:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-03 03:52:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-03 03:52:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:52:10,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:52:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-03 03:52:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-03 03:52:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:52:10,400 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:52:10,405 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:52:12,025 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:52:12,030 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:52:12,031 INFO L300 CfgBuilder]: Removed 14 assume(true) statements. [2022-11-03 03:52:12,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:52:12 BoogieIcfgContainer [2022-11-03 03:52:12,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:52:12,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:52:12,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:52:12,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:52:12,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:52:09" (1/3) ... [2022-11-03 03:52:12,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8abadb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:52:12, skipping insertion in model container [2022-11-03 03:52:12,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:10" (2/3) ... [2022-11-03 03:52:12,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8abadb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:52:12, skipping insertion in model container [2022-11-03 03:52:12,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:52:12" (3/3) ... [2022-11-03 03:52:12,041 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130a.c [2022-11-03 03:52:12,059 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:52:12,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:52:12,107 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:52:12,113 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;@5c4595e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:52:12,113 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:52:12,118 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:12,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 03:52:12,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:12,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:12,125 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:12,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:12,133 INFO L85 PathProgramCache]: Analyzing trace with hash 461941989, now seen corresponding path program 1 times [2022-11-03 03:52:12,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:52:12,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79069599] [2022-11-03 03:52:12,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:12,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:52:12,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:52:12,150 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:52:12,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 03:52:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:12,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 03:52:12,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:12,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:12,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:52:12,516 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:52:12,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79069599] [2022-11-03 03:52:12,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79069599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:12,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:12,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:52:12,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8358251] [2022-11-03 03:52:12,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:12,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:52:12,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:52:12,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:52:12,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:52:12,552 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:12,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:12,572 INFO L93 Difference]: Finished difference Result 93 states and 156 transitions. [2022-11-03 03:52:12,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:52:12,574 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-03 03:52:12,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:12,582 INFO L225 Difference]: With dead ends: 93 [2022-11-03 03:52:12,583 INFO L226 Difference]: Without dead ends: 44 [2022-11-03 03:52:12,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:52:12,589 INFO L413 NwaCegarLoop]: 65 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, 65 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:12,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:52:12,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-03 03:52:12,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-03 03:52:12,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 43 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:12,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2022-11-03 03:52:12,623 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 11 [2022-11-03 03:52:12,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:12,624 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2022-11-03 03:52:12,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:12,624 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2022-11-03 03:52:12,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 03:52:12,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:12,625 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:12,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:12,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:52:12,846 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:12,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:12,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1049045826, now seen corresponding path program 1 times [2022-11-03 03:52:12,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:52:12,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313263084] [2022-11-03 03:52:12,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:12,848 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:52:12,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:52:12,850 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:52:12,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 03:52:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:13,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 03:52:13,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:13,392 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 03:52:13,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-11-03 03:52:13,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:13,887 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:52:13,887 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:52:13,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313263084] [2022-11-03 03:52:13,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313263084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:13,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:13,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:52:13,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437277338] [2022-11-03 03:52:13,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:13,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:52:13,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:52:13,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:52:13,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:52:13,892 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:14,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:14,369 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2022-11-03 03:52:14,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:52:14,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-03 03:52:14,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:14,370 INFO L225 Difference]: With dead ends: 53 [2022-11-03 03:52:14,370 INFO L226 Difference]: Without dead ends: 44 [2022-11-03 03:52:14,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:52:14,372 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 5 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:14,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 212 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 28 Unchecked, 0.3s Time] [2022-11-03 03:52:14,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-03 03:52:14,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-03 03:52:14,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.372093023255814) internal successors, (59), 43 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:14,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2022-11-03 03:52:14,393 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 59 transitions. Word has length 13 [2022-11-03 03:52:14,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:14,394 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 59 transitions. [2022-11-03 03:52:14,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:14,395 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2022-11-03 03:52:14,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 03:52:14,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:14,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:14,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:14,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:52:14,610 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:14,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:14,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1911951893, now seen corresponding path program 1 times [2022-11-03 03:52:14,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:52:14,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513815054] [2022-11-03 03:52:14,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:14,612 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:52:14,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:52:14,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:52:14,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 03:52:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:14,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:52:14,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:14,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:14,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:52:14,845 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:52:14,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513815054] [2022-11-03 03:52:14,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513815054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:14,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:14,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:52:14,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959206033] [2022-11-03 03:52:14,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:14,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:52:14,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:52:14,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:52:14,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:52:14,847 INFO L87 Difference]: Start difference. First operand 44 states and 59 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:15,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:15,702 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2022-11-03 03:52:15,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:52:15,702 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-03 03:52:15,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:15,703 INFO L225 Difference]: With dead ends: 65 [2022-11-03 03:52:15,703 INFO L226 Difference]: Without dead ends: 62 [2022-11-03 03:52:15,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:52:15,705 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 140 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:15,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 169 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 03:52:15,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-03 03:52:15,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 46. [2022-11-03 03:52:15,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 45 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:15,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2022-11-03 03:52:15,722 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 14 [2022-11-03 03:52:15,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:15,723 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2022-11-03 03:52:15,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:15,725 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2022-11-03 03:52:15,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 03:52:15,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:15,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:15,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:15,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:52:15,938 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:15,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:15,939 INFO L85 PathProgramCache]: Analyzing trace with hash 791016935, now seen corresponding path program 1 times [2022-11-03 03:52:15,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:52:15,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223059218] [2022-11-03 03:52:15,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:15,940 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:52:15,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:52:15,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:52:15,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 03:52:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:16,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 03:52:16,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:16,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:16,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:52:16,390 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:52:16,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223059218] [2022-11-03 03:52:16,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223059218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:16,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:16,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:52:16,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987823635] [2022-11-03 03:52:16,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:16,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:52:16,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:52:16,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:52:16,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:52:16,393 INFO L87 Difference]: Start difference. First operand 46 states and 61 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:16,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:16,744 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2022-11-03 03:52:16,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:52:16,745 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 03:52:16,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:16,746 INFO L225 Difference]: With dead ends: 55 [2022-11-03 03:52:16,746 INFO L226 Difference]: Without dead ends: 46 [2022-11-03 03:52:16,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-03 03:52:16,749 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 9 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:16,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 198 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 29 Unchecked, 0.2s Time] [2022-11-03 03:52:16,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-03 03:52:16,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-03 03:52:16,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:16,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2022-11-03 03:52:16,756 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 15 [2022-11-03 03:52:16,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:16,756 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2022-11-03 03:52:16,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:16,757 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2022-11-03 03:52:16,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 03:52:16,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:16,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:16,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:16,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:52:16,971 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:16,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:16,972 INFO L85 PathProgramCache]: Analyzing trace with hash -645654976, now seen corresponding path program 1 times [2022-11-03 03:52:16,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:52:16,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109872911] [2022-11-03 03:52:16,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:16,973 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:52:16,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:52:16,974 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:52:16,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 03:52:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:17,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 03:52:17,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:17,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:17,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:52:17,427 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:52:17,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109872911] [2022-11-03 03:52:17,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109872911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:17,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:17,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 03:52:17,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270542856] [2022-11-03 03:52:17,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:17,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 03:52:17,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:52:17,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 03:52:17,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-03 03:52:17,429 INFO L87 Difference]: Start difference. First operand 46 states and 60 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:18,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:18,255 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2022-11-03 03:52:18,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 03:52:18,255 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-03 03:52:18,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:18,256 INFO L225 Difference]: With dead ends: 62 [2022-11-03 03:52:18,256 INFO L226 Difference]: Without dead ends: 53 [2022-11-03 03:52:18,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2022-11-03 03:52:18,257 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 141 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:18,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 366 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 03:52:18,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-03 03:52:18,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2022-11-03 03:52:18,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 43 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:18,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2022-11-03 03:52:18,263 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 18 [2022-11-03 03:52:18,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:18,263 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2022-11-03 03:52:18,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:18,263 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2022-11-03 03:52:18,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:52:18,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:18,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:18,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:18,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:52:18,467 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:18,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:18,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1896589553, now seen corresponding path program 1 times [2022-11-03 03:52:18,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:52:18,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119839970] [2022-11-03 03:52:18,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:18,468 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:52:18,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:52:18,469 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:52:18,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 03:52:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:18,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 03:52:18,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:18,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:18,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:52:18,717 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:52:18,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119839970] [2022-11-03 03:52:18,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119839970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:18,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:18,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:52:18,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364297316] [2022-11-03 03:52:18,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:18,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:52:18,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:52:18,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:52:18,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:52:18,726 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:19,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:19,192 INFO L93 Difference]: Finished difference Result 101 states and 131 transitions. [2022-11-03 03:52:19,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:52:19,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 03:52:19,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:19,194 INFO L225 Difference]: With dead ends: 101 [2022-11-03 03:52:19,194 INFO L226 Difference]: Without dead ends: 71 [2022-11-03 03:52:19,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:52:19,195 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 132 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:19,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 103 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 03:52:19,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-03 03:52:19,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 52. [2022-11-03 03:52:19,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 51 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:19,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 68 transitions. [2022-11-03 03:52:19,202 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 68 transitions. Word has length 24 [2022-11-03 03:52:19,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:19,202 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 68 transitions. [2022-11-03 03:52:19,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:19,203 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 68 transitions. [2022-11-03 03:52:19,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 03:52:19,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:19,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:19,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:19,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:52:19,418 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:19,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:19,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1844332961, now seen corresponding path program 1 times [2022-11-03 03:52:19,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:52:19,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625232888] [2022-11-03 03:52:19,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:19,419 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:52:19,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:52:19,420 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:52:19,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 03:52:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:19,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 03:52:19,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:19,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:19,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:52:19,944 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:52:19,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625232888] [2022-11-03 03:52:19,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625232888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:19,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:19,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:52:19,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768659164] [2022-11-03 03:52:19,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:19,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:52:19,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:52:19,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:52:19,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:52:19,947 INFO L87 Difference]: Start difference. First operand 52 states and 68 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:20,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:20,445 INFO L93 Difference]: Finished difference Result 96 states and 125 transitions. [2022-11-03 03:52:20,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:52:20,446 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-03 03:52:20,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:20,446 INFO L225 Difference]: With dead ends: 96 [2022-11-03 03:52:20,447 INFO L226 Difference]: Without dead ends: 61 [2022-11-03 03:52:20,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-03 03:52:20,450 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 20 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:20,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 248 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 16 Unchecked, 0.3s Time] [2022-11-03 03:52:20,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-03 03:52:20,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52. [2022-11-03 03:52:20,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 51 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:20,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2022-11-03 03:52:20,456 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 25 [2022-11-03 03:52:20,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:20,456 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2022-11-03 03:52:20,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:20,456 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2022-11-03 03:52:20,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 03:52:20,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:20,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:20,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:20,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:52:20,658 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:20,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:20,658 INFO L85 PathProgramCache]: Analyzing trace with hash 101160342, now seen corresponding path program 1 times [2022-11-03 03:52:20,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:52:20,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381252201] [2022-11-03 03:52:20,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:20,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:52:20,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:52:20,660 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:52:20,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 03:52:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:20,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:52:20,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:21,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:21,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:52:21,113 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:52:21,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381252201] [2022-11-03 03:52:21,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381252201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:21,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:21,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:52:21,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845933475] [2022-11-03 03:52:21,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:21,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:52:21,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:52:21,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:52:21,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:52:21,115 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:21,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:21,119 INFO L93 Difference]: Finished difference Result 88 states and 117 transitions. [2022-11-03 03:52:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:52:21,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-03 03:52:21,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:21,120 INFO L225 Difference]: With dead ends: 88 [2022-11-03 03:52:21,120 INFO L226 Difference]: Without dead ends: 53 [2022-11-03 03:52:21,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:52:21,121 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 2 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:21,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 132 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2022-11-03 03:52:21,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-03 03:52:21,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-03 03:52:21,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 52 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:21,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2022-11-03 03:52:21,131 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 26 [2022-11-03 03:52:21,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:21,131 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2022-11-03 03:52:21,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:21,131 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2022-11-03 03:52:21,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-03 03:52:21,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:21,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:21,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:21,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:52:21,346 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:21,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:21,347 INFO L85 PathProgramCache]: Analyzing trace with hash 305949144, now seen corresponding path program 1 times [2022-11-03 03:52:21,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:52:21,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667960801] [2022-11-03 03:52:21,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:21,347 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:52:21,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:52:21,348 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:52:21,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 03:52:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:21,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 03:52:21,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:22,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 03:52:22,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:52:22,094 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:52:22,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667960801] [2022-11-03 03:52:22,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1667960801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:22,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:22,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:52:22,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648098970] [2022-11-03 03:52:22,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:22,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:52:22,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:52:22,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:52:22,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:52:22,096 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:22,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:22,269 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2022-11-03 03:52:22,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:52:22,269 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-03 03:52:22,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:22,270 INFO L225 Difference]: With dead ends: 53 [2022-11-03 03:52:22,270 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 03:52:22,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:52:22,271 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:22,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 36 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-03 03:52:22,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 03:52:22,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 03:52:22,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:22,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 03:52:22,273 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2022-11-03 03:52:22,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:22,273 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 03:52:22,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:22,273 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 03:52:22,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 03:52:22,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:52:22,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:22,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:52:22,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 03:52:23,155 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2022-11-03 03:52:23,155 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2022-11-03 03:52:23,155 INFO L895 garLoopResultBuilder]: At program point L27-1(lines 19 107) the Hoare annotation is: (and (= |ULTIMATE.start_fmod_float_~x#1| (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (_ +zero 8 24)) (= .cse0 |ULTIMATE.start_fmod_float_~hx~0#1|)))) (or (fp.lt |ULTIMATE.start_fmod_float_~y#1| (_ +zero 8 24)) (fp.gt |ULTIMATE.start_fmod_float_~y#1| (_ +zero 8 24)))) [2022-11-03 03:52:23,155 INFO L899 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2022-11-03 03:52:23,155 INFO L895 garLoopResultBuilder]: At program point L118(lines 109 119) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_float_~x#1| (_ +zero 8 24)) (= |ULTIMATE.start___signbit_float_#res#1| (_ bv0 32)) (= (_ +zero 8 24) |ULTIMATE.start_fmod_float_#res#1|) (= |ULTIMATE.start_fmod_float_~x#1| (_ +zero 8 24)) (= |ULTIMATE.start_main_~res~0#1| (_ +zero 8 24)) |ULTIMATE.start_main_#t~short16#1| (= (_ +zero 8 24) |ULTIMATE.start_main_~x~0#1|) (= (fp ((_ extract 31 31) |ULTIMATE.start___signbit_float_~w~0#1|) ((_ extract 30 23) |ULTIMATE.start___signbit_float_~w~0#1|) ((_ extract 22 0) |ULTIMATE.start___signbit_float_~w~0#1|)) (_ +zero 8 24))) [2022-11-03 03:52:23,155 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2022-11-03 03:52:23,156 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2022-11-03 03:52:23,156 INFO L895 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2022-11-03 03:52:23,156 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-03 03:52:23,156 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-03 03:52:23,156 INFO L899 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2022-11-03 03:52:23,156 INFO L899 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2022-11-03 03:52:23,156 INFO L899 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2022-11-03 03:52:23,156 INFO L899 garLoopResultBuilder]: For program point L136-2(lines 136 139) no Hoare annotation was computed. [2022-11-03 03:52:23,156 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2022-11-03 03:52:23,156 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 112 116) no Hoare annotation was computed. [2022-11-03 03:52:23,156 INFO L895 garLoopResultBuilder]: At program point L112-2(lines 112 116) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_float_~x#1| (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_fmod_float_#res#1|) (= |ULTIMATE.start_fmod_float_~x#1| (_ +zero 8 24)) (= |ULTIMATE.start_main_~res~0#1| (_ +zero 8 24)) |ULTIMATE.start_main_#t~short16#1| (= (_ +zero 8 24) |ULTIMATE.start_main_~x~0#1|)) [2022-11-03 03:52:23,156 INFO L899 garLoopResultBuilder]: For program point L112-3(lines 112 116) no Hoare annotation was computed. [2022-11-03 03:52:23,157 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-11-03 03:52:23,157 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2022-11-03 03:52:23,157 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2022-11-03 03:52:23,157 INFO L899 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2022-11-03 03:52:23,157 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= |ULTIMATE.start_fmod_float_~x#1| (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_main_~x~0#1|) (or (fp.lt |ULTIMATE.start_fmod_float_~y#1| (_ +zero 8 24)) (fp.gt |ULTIMATE.start_fmod_float_~y#1| (_ +zero 8 24)))) [2022-11-03 03:52:23,157 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2022-11-03 03:52:23,157 INFO L899 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2022-11-03 03:52:23,157 INFO L895 garLoopResultBuilder]: At program point L106(lines 19 107) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_fmod_float_#res#1|) (= |ULTIMATE.start_fmod_float_~x#1| (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_main_~x~0#1|)) [2022-11-03 03:52:23,157 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2022-11-03 03:52:23,157 INFO L899 garLoopResultBuilder]: For program point L131(lines 131 140) no Hoare annotation was computed. [2022-11-03 03:52:23,157 INFO L899 garLoopResultBuilder]: For program point L131-2(lines 131 140) no Hoare annotation was computed. [2022-11-03 03:52:23,157 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-03 03:52:23,158 INFO L899 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2022-11-03 03:52:23,158 INFO L895 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2022-11-03 03:52:23,158 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2022-11-03 03:52:23,158 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2022-11-03 03:52:23,158 INFO L895 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: (and (= |ULTIMATE.start_fmod_float_~x#1| (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_fmod_float_~hx~0#1_39| (_ BitVec 32)) (|v_ULTIMATE.start_fmod_float_~hy~0#1_24| (_ BitVec 32))) (let ((.cse0 (bvand (_ bv2147483647 32) |v_ULTIMATE.start_fmod_float_~hy~0#1_24|))) (and (= (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|)) (_ +zero 8 24)) (not (bvslt (bvxor (bvand |v_ULTIMATE.start_fmod_float_~hx~0#1_39| (_ bv2147483648 32)) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|) .cse0)) (= |ULTIMATE.start_fmod_float_~i~0#1| (bvshl .cse0 (_ bv8 32)))))) (= (fp ((_ extract 31 31) |ULTIMATE.start_fmod_float_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start_fmod_float_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start_fmod_float_~hx~0#1|)) (_ +zero 8 24))) [2022-11-03 03:52:23,158 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2022-11-03 03:52:23,158 INFO L895 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2022-11-03 03:52:23,158 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 03:52:23,158 INFO L899 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2022-11-03 03:52:23,159 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2022-11-03 03:52:23,159 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2022-11-03 03:52:23,159 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2022-11-03 03:52:23,159 INFO L899 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2022-11-03 03:52:23,159 INFO L895 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2022-11-03 03:52:23,159 INFO L899 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2022-11-03 03:52:23,159 INFO L902 garLoopResultBuilder]: At program point L142(lines 121 143) the Hoare annotation is: true [2022-11-03 03:52:23,159 INFO L899 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2022-11-03 03:52:23,159 INFO L895 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: (and (= |ULTIMATE.start_fmod_float_~x#1| (_ +zero 8 24)) (exists ((|v_ULTIMATE.start_fmod_float_~hy~0#1_22| (_ BitVec 32))) (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start_fmod_float_~hy~0#1_22|) |ULTIMATE.start_fmod_float_~hy~0#1|)) (= (_ +zero 8 24) |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_fmod_float_~hx~0#1_38| (_ BitVec 32))) (and (not (bvslt (bvxor (bvand |v_ULTIMATE.start_fmod_float_~hx~0#1_38| (_ bv2147483648 32)) |v_ULTIMATE.start_fmod_float_~hx~0#1_38|) |ULTIMATE.start_fmod_float_~hy~0#1|)) (= (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_~hx~0#1_38|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_~hx~0#1_38|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_~hx~0#1_38|)) (_ +zero 8 24)))) (= (fp ((_ extract 31 31) |ULTIMATE.start_fmod_float_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start_fmod_float_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start_fmod_float_~hx~0#1|)) (_ +zero 8 24))) [2022-11-03 03:52:23,168 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:23,171 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:52:23,190 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,191 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,191 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,191 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,191 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,191 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2022-11-03 03:52:23,192 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2022-11-03 03:52:23,198 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,199 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,199 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,199 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,199 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,199 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2022-11-03 03:52:23,200 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2022-11-03 03:52:23,209 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] [2022-11-03 03:52:23,210 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] [2022-11-03 03:52:23,211 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] [2022-11-03 03:52:23,211 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] [2022-11-03 03:52:23,211 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] [2022-11-03 03:52:23,212 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] [2022-11-03 03:52:23,212 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] [2022-11-03 03:52:23,212 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] [2022-11-03 03:52:23,217 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] [2022-11-03 03:52:23,217 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,218 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,218 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,218 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,222 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,223 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] [2022-11-03 03:52:23,225 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,225 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,225 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,226 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,226 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:52:23 BoogieIcfgContainer [2022-11-03 03:52:23,236 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:52:23,237 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:52:23,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:52:23,237 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:52:23,238 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:52:12" (3/4) ... [2022-11-03 03:52:23,241 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 03:52:23,251 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-03 03:52:23,253 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-03 03:52:23,253 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 03:52:23,253 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:52:23,292 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 03:52:23,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:52:23,293 INFO L158 Benchmark]: Toolchain (without parser) took 13729.31ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 56.3MB in the beginning and 53.9MB in the end (delta: 2.4MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2022-11-03 03:52:23,293 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 73.4MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:52:23,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.37ms. Allocated memory is still 73.4MB. Free memory was 56.1MB in the beginning and 53.6MB in the end (delta: 2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 03:52:23,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.71ms. Allocated memory is still 73.4MB. Free memory was 53.5MB in the beginning and 51.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:52:23,295 INFO L158 Benchmark]: Boogie Preprocessor took 68.19ms. Allocated memory is still 73.4MB. Free memory was 51.4MB in the beginning and 49.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:52:23,295 INFO L158 Benchmark]: RCFGBuilder took 1879.99ms. Allocated memory is still 73.4MB. Free memory was 49.1MB in the beginning and 53.1MB in the end (delta: -3.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2022-11-03 03:52:23,296 INFO L158 Benchmark]: TraceAbstraction took 11201.49ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 52.5MB in the beginning and 56.4MB in the end (delta: -3.9MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2022-11-03 03:52:23,296 INFO L158 Benchmark]: Witness Printer took 55.27ms. Allocated memory is still 92.3MB. Free memory was 56.4MB in the beginning and 53.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:52:23,301 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 73.4MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.37ms. Allocated memory is still 73.4MB. Free memory was 56.1MB in the beginning and 53.6MB in the end (delta: 2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.71ms. Allocated memory is still 73.4MB. Free memory was 53.5MB in the beginning and 51.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.19ms. Allocated memory is still 73.4MB. Free memory was 51.4MB in the beginning and 49.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1879.99ms. Allocated memory is still 73.4MB. Free memory was 49.1MB in the beginning and 53.1MB in the end (delta: -3.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * TraceAbstraction took 11201.49ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 52.5MB in the beginning and 56.4MB in the end (delta: -3.9MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. * Witness Printer took 55.27ms. Allocated memory is still 92.3MB. Free memory was 56.4MB in the beginning and 53.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 137]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 460 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 460 mSDsluCounter, 1529 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 111 IncrementalHoareTripleChecker+Unchecked, 1071 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 181 IncrementalHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 458 mSDtfsCounter, 181 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 125 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=8, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 53 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 21 NumberOfFragments, 204 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 149 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 165 ConstructedInterpolants, 28 QuantifiedInterpolants, 1075 SizeOfPredicates, 56 NumberOfNonLiveVariables, 687 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant [2022-11-03 03:52:23,319 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,319 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,319 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,320 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,320 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,320 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2022-11-03 03:52:23,320 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2022-11-03 03:52:23,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-11-03 03:52:23,322 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2022-11-03 03:52:23,322 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == x) && (\exists v_ULTIMATE.start_fmod_float_~hx~0#1_39 : bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_24 : bv32 :: (~fp~LONGDOUBLE(v_ULTIMATE.start_fmod_float_~hx~0#1_39[31:31], v_ULTIMATE.start_fmod_float_~hx~0#1_39[30:23], v_ULTIMATE.start_fmod_float_~hx~0#1_39[22:0]) == ~Pluszero~LONGDOUBLE() && !~bvslt32(~bvxor32(~bvand32(v_ULTIMATE.start_fmod_float_~hx~0#1_39, 2147483648bv32), v_ULTIMATE.start_fmod_float_~hx~0#1_39), ~bvand32(2147483647bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_24))) && i == ~bvshl32(~bvand32(2147483647bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_24), 8bv32))) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (x == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == x) && (~fp.lt~FLOAT(y, ~Pluszero~LONGDOUBLE()) || ~fp.gt~FLOAT(y, ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 19]: Loop Invariant [2022-11-03 03:52:23,323 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] [2022-11-03 03:52:23,323 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] [2022-11-03 03:52:23,324 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] [2022-11-03 03:52:23,324 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] [2022-11-03 03:52:23,324 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] [2022-11-03 03:52:23,324 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] [2022-11-03 03:52:23,325 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] [2022-11-03 03:52:23,325 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6,QUANTIFIED] Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == x) && (\exists v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6][0bv32][22:0]) == ~Pluszero~LONGDOUBLE() && unknown-#memory_int-unknown[v_ULTIMATE.start_fmod_float_~#gf_u~0#1.base_6][0bv32] == hx)) && (~fp.lt~FLOAT(y, ~Pluszero~LONGDOUBLE()) || ~fp.gt~FLOAT(y, ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant [2022-11-03 03:52:23,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] [2022-11-03 03:52:23,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,327 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] [2022-11-03 03:52:23,327 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,327 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,327 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-11-03 03:52:23,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] Derived loop invariant: (((x == ~Pluszero~LONGDOUBLE() && (\exists v_ULTIMATE.start_fmod_float_~hy~0#1_22 : bv32 :: ~bvand32(2147483647bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_22) == hy)) && ~Pluszero~LONGDOUBLE() == x) && (\exists v_ULTIMATE.start_fmod_float_~hx~0#1_38 : bv32 :: !~bvslt32(~bvxor32(~bvand32(v_ULTIMATE.start_fmod_float_~hx~0#1_38, 2147483648bv32), v_ULTIMATE.start_fmod_float_~hx~0#1_38), hy) && ~fp~LONGDOUBLE(v_ULTIMATE.start_fmod_float_~hx~0#1_38[31:31], v_ULTIMATE.start_fmod_float_~hx~0#1_38[30:23], v_ULTIMATE.start_fmod_float_~hx~0#1_38[22:0]) == ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((x == ~Pluszero~LONGDOUBLE() && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == \result) && x == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: ((((x == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == \result) && x == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (~Pluszero~LONGDOUBLE() == \result && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x RESULT: Ultimate proved your program to be correct! [2022-11-03 03:52:23,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b16104-7653-4c5a-bb2f-72ebf2d81d5f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE