./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8 --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 a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:16:08,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:16:08,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:16:08,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:16:08,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:16:08,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:16:08,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:16:08,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:16:08,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:16:08,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:16:08,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:16:08,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:16:08,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:16:08,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:16:08,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:16:08,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:16:08,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:16:08,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:16:08,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:16:08,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:16:08,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:16:08,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:16:08,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:16:08,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:16:08,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:16:08,725 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:16:08,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:16:08,727 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:16:08,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:16:08,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:16:08,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:16:08,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:16:08,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:16:08,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:16:08,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:16:08,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:16:08,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:16:08,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:16:08,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:16:08,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:16:08,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:16:08,741 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:16:08,781 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:16:08,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:16:08,782 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:16:08,783 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:16:08,783 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:16:08,783 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:16:08,784 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:16:08,784 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:16:08,785 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:16:08,785 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:16:08,786 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:16:08,786 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:16:08,787 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:16:08,787 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:16:08,787 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:16:08,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:16:08,797 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:16:08,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:16:08,797 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:16:08,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:16:08,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:16:08,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:16:08,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:16:08,799 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:16:08,799 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:16:08,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:16:08,800 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:16:08,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:16:08,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:16:08,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:16:08,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:16:08,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:16:08,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:16:08,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:16:08,802 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:16:08,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:16:08,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:16:08,804 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:16:08,804 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:16:08,804 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 [2021-11-07 02:16:09,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:16:09,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:16:09,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:16:09,102 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:16:09,103 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:16:09,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2021-11-07 02:16:09,170 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/data/67ddb2b8b/c3062cd173594c2e90eda8806cc76e04/FLAG909bc5f87 [2021-11-07 02:16:09,643 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:16:09,644 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2021-11-07 02:16:09,650 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/data/67ddb2b8b/c3062cd173594c2e90eda8806cc76e04/FLAG909bc5f87 [2021-11-07 02:16:10,031 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/data/67ddb2b8b/c3062cd173594c2e90eda8806cc76e04 [2021-11-07 02:16:10,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:16:10,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:16:10,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:16:10,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:16:10,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:16:10,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:16:10" (1/1) ... [2021-11-07 02:16:10,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e91c98e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:10, skipping insertion in model container [2021-11-07 02:16:10,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:16:10" (1/1) ... [2021-11-07 02:16:10,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:16:10,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:16:10,264 WARN L228 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_e685661f-4062-47de-8b5f-f5412df9425b/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c[1314,1327] [2021-11-07 02:16:10,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:16:10,278 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:16:10,300 WARN L228 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_e685661f-4062-47de-8b5f-f5412df9425b/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c[1314,1327] [2021-11-07 02:16:10,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:16:10,317 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:16:10,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:10 WrapperNode [2021-11-07 02:16:10,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:16:10,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:16:10,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:16:10,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:16:10,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:10" (1/1) ... [2021-11-07 02:16:10,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:10" (1/1) ... [2021-11-07 02:16:10,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:16:10,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:16:10,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:16:10,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:16:10,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:10" (1/1) ... [2021-11-07 02:16:10,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:10" (1/1) ... [2021-11-07 02:16:10,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:10" (1/1) ... [2021-11-07 02:16:10,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:10" (1/1) ... [2021-11-07 02:16:10,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:10" (1/1) ... [2021-11-07 02:16:10,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:10" (1/1) ... [2021-11-07 02:16:10,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:10" (1/1) ... [2021-11-07 02:16:10,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:16:10,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:16:10,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:16:10,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:16:10,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:10" (1/1) ... [2021-11-07 02:16:10,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:16:10,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:16:10,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:16:10,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:16:10,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 02:16:10,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:16:10,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-07 02:16:10,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:16:10,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:16:10,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-07 02:16:10,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:16:10,790 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:16:10,790 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-07 02:16:10,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:16:10 BoogieIcfgContainer [2021-11-07 02:16:10,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:16:10,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:16:10,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:16:10,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:16:10,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:16:10" (1/3) ... [2021-11-07 02:16:10,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b46b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:16:10, skipping insertion in model container [2021-11-07 02:16:10,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:10" (2/3) ... [2021-11-07 02:16:10,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b46b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:16:10, skipping insertion in model container [2021-11-07 02:16:10,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:16:10" (3/3) ... [2021-11-07 02:16:10,801 INFO L111 eAbstractionObserver]: Analyzing ICFG interpolation.c.v+cfa-reducer.c [2021-11-07 02:16:10,806 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:16:10,806 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 02:16:10,869 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:16:10,875 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:16:10,875 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 02:16:10,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:10,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 02:16:10,892 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:16:10,893 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:16:10,894 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:16:10,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:16:10,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1392335393, now seen corresponding path program 1 times [2021-11-07 02:16:10,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:16:10,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834519721] [2021-11-07 02:16:10,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:16:10,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:16:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:16:11,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:11,121 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:16:11,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834519721] [2021-11-07 02:16:11,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834519721] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:16:11,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:16:11,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 02:16:11,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898824814] [2021-11-07 02:16:11,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:16:11,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:16:11,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:16:11,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:16:11,149 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 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 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2021-11-07 02:16:11,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:16:11,215 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2021-11-07 02:16:11,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:16:11,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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 [2021-11-07 02:16:11,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:16:11,224 INFO L225 Difference]: With dead ends: 26 [2021-11-07 02:16:11,225 INFO L226 Difference]: Without dead ends: 14 [2021-11-07 02:16:11,227 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:16:11,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-07 02:16:11,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-07 02:16:11,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:11,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-11-07 02:16:11,258 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2021-11-07 02:16:11,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:16:11,259 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-11-07 02:16:11,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2021-11-07 02:16:11,259 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-07 02:16:11,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 02:16:11,260 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:16:11,260 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:16:11,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 02:16:11,261 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:16:11,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:16:11,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1409346054, now seen corresponding path program 1 times [2021-11-07 02:16:11,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:16:11,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018281933] [2021-11-07 02:16:11,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:16:11,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:16:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:16:11,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:11,371 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:16:11,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018281933] [2021-11-07 02:16:11,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018281933] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:16:11,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:16:11,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 02:16:11,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256956221] [2021-11-07 02:16:11,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:16:11,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:16:11,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:16:11,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:16:11,376 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-11-07 02:16:11,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:16:11,428 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2021-11-07 02:16:11,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:16:11,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 [2021-11-07 02:16:11,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:16:11,430 INFO L225 Difference]: With dead ends: 32 [2021-11-07 02:16:11,430 INFO L226 Difference]: Without dead ends: 24 [2021-11-07 02:16:11,431 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:16:11,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-07 02:16:11,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 15. [2021-11-07 02:16:11,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:11,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-11-07 02:16:11,436 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2021-11-07 02:16:11,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:16:11,437 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-11-07 02:16:11,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-11-07 02:16:11,438 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-11-07 02:16:11,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 02:16:11,438 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:16:11,439 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:16:11,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 02:16:11,439 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:16:11,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:16:11,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1916271840, now seen corresponding path program 1 times [2021-11-07 02:16:11,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:16:11,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394969314] [2021-11-07 02:16:11,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:16:11,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:16:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:16:11,465 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 02:16:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:16:11,509 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 02:16:11,509 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 02:16:11,510 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:16:11,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 02:16:11,516 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-07 02:16:11,519 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:16:11,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:16:11 BoogieIcfgContainer [2021-11-07 02:16:11,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:16:11,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:16:11,550 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:16:11,551 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:16:11,551 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:16:10" (3/4) ... [2021-11-07 02:16:11,555 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 02:16:11,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:16:11,557 INFO L168 Benchmark]: Toolchain (without parser) took 1515.73 ms. Allocated memory is still 111.1 MB. Free memory was 72.6 MB in the beginning and 79.7 MB in the end (delta: -7.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:16:11,557 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 111.1 MB. Free memory is still 88.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:16:11,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.07 ms. Allocated memory is still 111.1 MB. Free memory was 72.4 MB in the beginning and 86.2 MB in the end (delta: -13.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:16:11,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.24 ms. Allocated memory is still 111.1 MB. Free memory was 86.2 MB in the beginning and 84.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:16:11,560 INFO L168 Benchmark]: Boogie Preprocessor took 29.34 ms. Allocated memory is still 111.1 MB. Free memory was 84.5 MB in the beginning and 83.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:16:11,560 INFO L168 Benchmark]: RCFGBuilder took 397.08 ms. Allocated memory is still 111.1 MB. Free memory was 83.3 MB in the beginning and 71.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:16:11,561 INFO L168 Benchmark]: TraceAbstraction took 755.73 ms. Allocated memory is still 111.1 MB. Free memory was 70.7 MB in the beginning and 79.7 MB in the end (delta: -8.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:16:11,561 INFO L168 Benchmark]: Witness Printer took 4.76 ms. Allocated memory is still 111.1 MB. Free memory is still 79.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:16:11,564 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 111.1 MB. Free memory is still 88.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 272.07 ms. Allocated memory is still 111.1 MB. Free memory was 72.4 MB in the beginning and 86.2 MB in the end (delta: -13.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.24 ms. Allocated memory is still 111.1 MB. Free memory was 86.2 MB in the beginning and 84.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.34 ms. Allocated memory is still 111.1 MB. Free memory was 84.5 MB in the beginning and 83.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 397.08 ms. Allocated memory is still 111.1 MB. Free memory was 83.3 MB in the beginning and 71.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 755.73 ms. Allocated memory is still 111.1 MB. Free memory was 70.7 MB in the beginning and 79.7 MB in the end (delta: -8.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.76 ms. Allocated memory is still 111.1 MB. Free memory is still 79.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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: 51]: 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 33, overapproximation of someBinaryDOUBLEComparisonOperation at line 38, overapproximation of to_real at line 18, overapproximation of someBinaryArithmeticFLOAToperation at line 36. Possible FailurePath: [L1] int __return_main; [L12] int __return_125; [L15] int main__i; [L16] float main__z; [L17] float main__t; [L18] float main__min[5] = { 5, 10, 12, 30, 150 }; [L19] float main__max[5] = { 10, 12, 30, 150, 300 }; [L20] main__t = __VERIFIER_nondet_float() [L21] int main____CPAchecker_TMP_0; [L22] EXPR main__min[0] VAL [__return_125=0, __return_main=0] [L22] COND TRUE main__t >= (main__min[0]) [L24] EXPR main__max[4UL] VAL [__return_125=0, __return_main=0] [L24] COND TRUE main__t <= (main__max[4UL]) [L26] main____CPAchecker_TMP_0 = 1 VAL [__return_125=0, __return_main=0] [L27] COND TRUE main____CPAchecker_TMP_0 != 0 [L29] main__i = 0 VAL [__return_125=0, __return_main=0] [L31] COND TRUE main__i < 5UL [L33] EXPR main__max[main__i] VAL [__return_125=0, __return_main=0] [L33] COND TRUE main__t <= (main__max[main__i]) [L36] EXPR main__min[main__i] [L36] EXPR main__max[main__i] [L36] EXPR main__min[main__i] [L36] main__z = (main__t - (main__min[main__i])) / ((main__max[main__i]) - (main__min[main__i])) [L37] int main____CPAchecker_TMP_1; VAL [__return_125=0, __return_main=0] [L38] COND FALSE !(main__z >= 0.0) VAL [__return_125=0, __return_main=0] [L64] main____CPAchecker_TMP_1 = 0 VAL [__return_125=0, __return_main=0] [L45] int __tmp_1; [L46] __tmp_1 = main____CPAchecker_TMP_1 [L47] int __VERIFIER_assert__cond; [L48] __VERIFIER_assert__cond = __tmp_1 VAL [__return_125=0, __return_main=0] [L49] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_125=0, __return_main=0] [L51] reach_error() VAL [__return_125=0, __return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 35 SDslu, 47 SDs, 0 SdLazy, 19 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2021-11-07 02:16:11,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8 --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 a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:16:14,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:16:14,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:16:14,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:16:14,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:16:14,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:16:14,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:16:14,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:16:14,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:16:14,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:16:14,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:16:14,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:16:14,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:16:14,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:16:14,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:16:14,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:16:14,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:16:14,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:16:14,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:16:14,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:16:14,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:16:14,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:16:14,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:16:14,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:16:14,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:16:14,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:16:14,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:16:14,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:16:14,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:16:14,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:16:14,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:16:14,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:16:14,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:16:14,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:16:14,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:16:14,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:16:14,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:16:14,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:16:14,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:16:14,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:16:14,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:16:14,485 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 02:16:14,529 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:16:14,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:16:14,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:16:14,531 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:16:14,532 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:16:14,532 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:16:14,532 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:16:14,532 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:16:14,533 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:16:14,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:16:14,536 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:16:14,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:16:14,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:16:14,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:16:14,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:16:14,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:16:14,538 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:16:14,538 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:16:14,538 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:16:14,539 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:16:14,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:16:14,539 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:16:14,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:16:14,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:16:14,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:16:14,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:16:14,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:16:14,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:16:14,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:16:14,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:16:14,542 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:16:14,542 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:16:14,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:16:14,543 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:16:14,544 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:16:14,544 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_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 [2021-11-07 02:16:14,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:16:15,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:16:15,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:16:15,025 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:16:15,026 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:16:15,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2021-11-07 02:16:15,098 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/data/d7a8c2769/8c849372a87647639e05f3811725f6cf/FLAG5e960e89a [2021-11-07 02:16:15,640 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:16:15,641 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2021-11-07 02:16:15,655 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/data/d7a8c2769/8c849372a87647639e05f3811725f6cf/FLAG5e960e89a [2021-11-07 02:16:16,018 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/data/d7a8c2769/8c849372a87647639e05f3811725f6cf [2021-11-07 02:16:16,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:16:16,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:16:16,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:16:16,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:16:16,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:16:16,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:16:16" (1/1) ... [2021-11-07 02:16:16,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191c2dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:16, skipping insertion in model container [2021-11-07 02:16:16,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:16:16" (1/1) ... [2021-11-07 02:16:16,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:16:16,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:16:16,314 WARN L228 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_e685661f-4062-47de-8b5f-f5412df9425b/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c[1314,1327] [2021-11-07 02:16:16,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:16:16,355 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:16:16,441 WARN L228 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_e685661f-4062-47de-8b5f-f5412df9425b/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c[1314,1327] [2021-11-07 02:16:16,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:16:16,477 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:16:16,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:16 WrapperNode [2021-11-07 02:16:16,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:16:16,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:16:16,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:16:16,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:16:16,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:16" (1/1) ... [2021-11-07 02:16:16,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:16" (1/1) ... [2021-11-07 02:16:16,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:16:16,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:16:16,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:16:16,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:16:16,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:16" (1/1) ... [2021-11-07 02:16:16,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:16" (1/1) ... [2021-11-07 02:16:16,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:16" (1/1) ... [2021-11-07 02:16:16,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:16" (1/1) ... [2021-11-07 02:16:16,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:16" (1/1) ... [2021-11-07 02:16:16,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:16" (1/1) ... [2021-11-07 02:16:16,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:16" (1/1) ... [2021-11-07 02:16:16,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:16:16,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:16:16,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:16:16,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:16:16,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:16" (1/1) ... [2021-11-07 02:16:16,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:16:16,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:16:16,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:16:16,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:16:16,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-07 02:16:16,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:16:16,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:16:16,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-07 02:16:16,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:16:16,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:16:16,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:16:19,498 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:16:19,498 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-07 02:16:19,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:16:19 BoogieIcfgContainer [2021-11-07 02:16:19,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:16:19,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:16:19,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:16:19,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:16:19,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:16:16" (1/3) ... [2021-11-07 02:16:19,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39692b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:16:19, skipping insertion in model container [2021-11-07 02:16:19,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:16:16" (2/3) ... [2021-11-07 02:16:19,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39692b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:16:19, skipping insertion in model container [2021-11-07 02:16:19,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:16:19" (3/3) ... [2021-11-07 02:16:19,508 INFO L111 eAbstractionObserver]: Analyzing ICFG interpolation.c.v+cfa-reducer.c [2021-11-07 02:16:19,514 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:16:19,514 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 02:16:19,562 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:16:19,568 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:16:19,569 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 02:16:19,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.5625) internal successors, (25), 17 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) [2021-11-07 02:16:19,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 02:16:19,587 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:16:19,587 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:16:19,588 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:16:19,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:16:19,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1718991182, now seen corresponding path program 1 times [2021-11-07 02:16:19,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:16:19,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765374020] [2021-11-07 02:16:19,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:16:19,611 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:16:19,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:16:19,620 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:16:19,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:16:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:16:20,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:16:20,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:16:20,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:20,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:16:20,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:20,273 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:16:20,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765374020] [2021-11-07 02:16:20,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765374020] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:16:20,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:16:20,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:16:20,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600220560] [2021-11-07 02:16:20,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:16:20,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:16:20,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:16:20,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:16:20,300 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.5625) internal successors, (25), 17 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) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2021-11-07 02:16:22,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:16:22,565 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2021-11-07 02:16:22,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:16:22,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 12 [2021-11-07 02:16:22,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:16:22,578 INFO L225 Difference]: With dead ends: 34 [2021-11-07 02:16:22,578 INFO L226 Difference]: Without dead ends: 20 [2021-11-07 02:16:22,581 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:16:22,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-07 02:16:22,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2021-11-07 02:16:22,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:22,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2021-11-07 02:16:22,614 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 12 [2021-11-07 02:16:22,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:16:22,615 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-11-07 02:16:22,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2021-11-07 02:16:22,616 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2021-11-07 02:16:22,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 02:16:22,617 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:16:22,617 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:16:22,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:16:22,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:16:22,824 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:16:22,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:16:22,825 INFO L85 PathProgramCache]: Analyzing trace with hash -859311250, now seen corresponding path program 1 times [2021-11-07 02:16:22,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:16:22,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091755014] [2021-11-07 02:16:22,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:16:22,827 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:16:22,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:16:22,828 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:16:22,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:16:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:16:23,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:16:23,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:16:23,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:23,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:16:23,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:23,412 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:16:23,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091755014] [2021-11-07 02:16:23,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1091755014] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:16:23,414 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:16:23,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 02:16:23,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162072426] [2021-11-07 02:16:23,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:16:23,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:16:23,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:16:23,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:16:23,420 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:27,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:16:27,671 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2021-11-07 02:16:27,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:16:27,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-07 02:16:27,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:16:27,673 INFO L225 Difference]: With dead ends: 22 [2021-11-07 02:16:27,673 INFO L226 Difference]: Without dead ends: 18 [2021-11-07 02:16:27,674 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:16:27,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-07 02:16:27,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-07 02:16:27,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:27,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-11-07 02:16:27,679 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 13 [2021-11-07 02:16:27,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:16:27,680 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-11-07 02:16:27,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:27,680 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-11-07 02:16:27,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 02:16:27,681 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:16:27,681 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:16:27,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-07 02:16:27,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:16:27,900 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:16:27,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:16:27,903 INFO L85 PathProgramCache]: Analyzing trace with hash -842300589, now seen corresponding path program 1 times [2021-11-07 02:16:27,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:16:27,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112858160] [2021-11-07 02:16:27,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:16:27,904 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:16:27,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:16:27,905 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:16:27,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:16:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:16:28,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 02:16:28,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:16:30,294 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 02:16:30,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 178 treesize of output 86 [2021-11-07 02:17:18,371 WARN L207 SmtUtils]: Spent 13.07 s on a formula simplification. DAG size of input: 39 DAG size of output: 30 [2021-11-07 02:18:20,354 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_1 (_ BitVec 32)) (ULTIMATE.start_main_~main__t~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_2 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1)))) (and (fp.geq ULTIMATE.start_main_~main__t~0 .cse0) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32)) .cse0) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub roundNearestTiesToEven .cse1 .cse0))) (_ +zero 11 53))) (fp.leq ULTIMATE.start_main_~main__t~0 .cse1) (= .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)))))) is different from false [2021-11-07 02:18:22,382 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_1 (_ BitVec 32)) (ULTIMATE.start_main_~main__t~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_2 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1)))) (and (fp.geq ULTIMATE.start_main_~main__t~0 .cse0) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32)) .cse0) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub roundNearestTiesToEven .cse1 .cse0))) (_ +zero 11 53))) (fp.leq ULTIMATE.start_main_~main__t~0 .cse1) (= .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)))))) is different from true [2021-11-07 02:21:11,783 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_1 (_ BitVec 32)) (ULTIMATE.start_main_~main__t~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_2 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1)))) (and (fp.geq ULTIMATE.start_main_~main__t~0 .cse0) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32)) .cse0) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub roundNearestTiesToEven .cse1 .cse0))) (_ +zero 11 53))) (= .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)))))) is different from false [2021-11-07 02:21:13,812 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_1 (_ BitVec 32)) (ULTIMATE.start_main_~main__t~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_2 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1)))) (and (fp.geq ULTIMATE.start_main_~main__t~0 .cse0) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32)) .cse0) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub roundNearestTiesToEven .cse1 .cse0))) (_ +zero 11 53))) (= .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)))))) is different from true [2021-11-07 02:21:13,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:21:13,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:21:23,108 WARN L838 $PredicateComparison]: unable to prove that (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse2 (bvmul c_ULTIMATE.start_main_~main__i~0 (_ bv4 32)))) (let ((.cse0 (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) (bvadd |c_ULTIMATE.start_main_~#main__min~0.offset| .cse2)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub c_currentRoundingMode (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|) (bvadd |c_ULTIMATE.start_main_~#main__max~0.offset| .cse2)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) .cse0))))) (_ +zero 11 53)) is different from false [2021-11-07 02:21:25,164 WARN L860 $PredicateComparison]: unable to prove that (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse2 (bvmul c_ULTIMATE.start_main_~main__i~0 (_ bv4 32)))) (let ((.cse0 (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) (bvadd |c_ULTIMATE.start_main_~#main__min~0.offset| .cse2)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub c_currentRoundingMode (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|) (bvadd |c_ULTIMATE.start_main_~#main__max~0.offset| .cse2)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) .cse0))))) (_ +zero 11 53)) is different from true [2021-11-07 02:21:35,446 WARN L838 $PredicateComparison]: unable to prove that (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse2 (bvmul c_ULTIMATE.start_main_~main__i~0 (_ bv4 32)))) (let ((.cse0 (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) (bvadd |c_ULTIMATE.start_main_~#main__min~0.offset| .cse2)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub c_currentRoundingMode (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|) (bvadd |c_ULTIMATE.start_main_~#main__max~0.offset| .cse2)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) .cse0))))) (_ +zero 11 53)) (not (fp.leq c_ULTIMATE.start_main_~main__t~0 |c_ULTIMATE.start_main_#t~mem10|))) is different from false [2021-11-07 02:21:37,500 WARN L860 $PredicateComparison]: unable to prove that (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse2 (bvmul c_ULTIMATE.start_main_~main__i~0 (_ bv4 32)))) (let ((.cse0 (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) (bvadd |c_ULTIMATE.start_main_~#main__min~0.offset| .cse2)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub c_currentRoundingMode (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|) (bvadd |c_ULTIMATE.start_main_~#main__max~0.offset| .cse2)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) .cse0))))) (_ +zero 11 53)) (not (fp.leq c_ULTIMATE.start_main_~main__t~0 |c_ULTIMATE.start_main_#t~mem10|))) is different from true [2021-11-07 02:21:46,547 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (bvmul c_ULTIMATE.start_main_~main__i~0 (_ bv4 32)))) (let ((.cse0 (let ((.cse4 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|) (bvadd |c_ULTIMATE.start_main_~#main__max~0.offset| .cse3)))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (or (not (fp.leq c_ULTIMATE.start_main_~main__t~0 .cse0)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) (bvadd |c_ULTIMATE.start_main_~#main__min~0.offset| .cse3)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse1) (fp.sub c_currentRoundingMode .cse0 .cse1)))) (_ +zero 11 53))))) is different from false [2021-11-07 02:21:48,611 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse3 (bvmul c_ULTIMATE.start_main_~main__i~0 (_ bv4 32)))) (let ((.cse0 (let ((.cse4 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|) (bvadd |c_ULTIMATE.start_main_~#main__max~0.offset| .cse3)))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (or (not (fp.leq c_ULTIMATE.start_main_~main__t~0 .cse0)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) (bvadd |c_ULTIMATE.start_main_~#main__min~0.offset| .cse3)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse1) (fp.sub c_currentRoundingMode .cse0 .cse1)))) (_ +zero 11 53))))) is different from true [2021-11-07 02:21:58,965 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|) |c_ULTIMATE.start_main_~#main__max~0.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) |c_ULTIMATE.start_main_~#main__min~0.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0)))) (_ +zero 11 53)) (not (fp.leq c_ULTIMATE.start_main_~main__t~0 .cse1)))) is different from false [2021-11-07 02:22:01,018 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|) |c_ULTIMATE.start_main_~#main__max~0.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) |c_ULTIMATE.start_main_~#main__min~0.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0)))) (_ +zero 11 53)) (not (fp.leq c_ULTIMATE.start_main_~main__t~0 .cse1)))) is different from true [2021-11-07 02:22:15,562 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|) |c_ULTIMATE.start_main_~#main__max~0.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (or (not (fp.leq c_ULTIMATE.start_main_~main__t~0 |c_ULTIMATE.start_main_#t~mem9|)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) |c_ULTIMATE.start_main_~#main__min~0.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0)))) (_ +zero 11 53)) (not (fp.leq c_ULTIMATE.start_main_~main__t~0 .cse1)))) is different from false [2021-11-07 02:22:17,619 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|) |c_ULTIMATE.start_main_~#main__max~0.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (or (not (fp.leq c_ULTIMATE.start_main_~main__t~0 |c_ULTIMATE.start_main_#t~mem9|)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) |c_ULTIMATE.start_main_~#main__min~0.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0)))) (_ +zero 11 53)) (not (fp.leq c_ULTIMATE.start_main_~main__t~0 .cse1)))) is different from true [2021-11-07 02:22:34,980 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__t~0 (_ FloatingPoint 8 24))) (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|))) (let ((.cse1 (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~#main__max~0.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) |c_ULTIMATE.start_main_~#main__min~0.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0)))) (_ +zero 11 53)) (not (fp.leq ULTIMATE.start_main_~main__t~0 .cse1)) (not (fp.leq ULTIMATE.start_main_~main__t~0 (let ((.cse3 (select .cse4 (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~#main__max~0.offset|)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (not (fp.geq ULTIMATE.start_main_~main__t~0 |c_ULTIMATE.start_main_#t~mem8|)))))) is different from true [2021-11-07 02:22:49,162 WARN L207 SmtUtils]: Spent 14.14 s on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2021-11-07 02:22:49,163 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-07 02:22:49,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 207 treesize of output 102 [2021-11-07 02:23:58,388 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_arrayElimCell_6 (_ BitVec 32))) (not (= (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32))))) (forall ((ULTIMATE.start_main_~main__t~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_5 (_ BitVec 32)) (v_arrayElimCell_4 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_5) ((_ extract 30 23) v_arrayElimCell_5) ((_ extract 22 0) v_arrayElimCell_5))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4)))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0))) (_ +zero 11 53)) (not (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32)) .cse0)) (not (= .cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32)))) (not (fp.leq ULTIMATE.start_main_~main__t~0 .cse1)) (not (fp.geq ULTIMATE.start_main_~main__t~0 .cse0)))))) is different from false [2021-11-07 02:24:00,443 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_arrayElimCell_6 (_ BitVec 32))) (not (= (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32))))) (forall ((ULTIMATE.start_main_~main__t~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_5 (_ BitVec 32)) (v_arrayElimCell_4 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_5) ((_ extract 30 23) v_arrayElimCell_5) ((_ extract 22 0) v_arrayElimCell_5))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4)))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0))) (_ +zero 11 53)) (not (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32)) .cse0)) (not (= .cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32)))) (not (fp.leq ULTIMATE.start_main_~main__t~0 .cse1)) (not (fp.geq ULTIMATE.start_main_~main__t~0 .cse0)))))) is different from true [2021-11-07 02:24:00,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:00,443 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:24:00,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112858160] [2021-11-07 02:24:00,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112858160] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:00,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:00,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 19 [2021-11-07 02:24:00,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576682589] [2021-11-07 02:24:00,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-07 02:24:00,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:24:00,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-07 02:24:00,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=74, Unknown=23, NotChecked=234, Total=380 [2021-11-07 02:24:00,448 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 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) [2021-11-07 02:24:04,782 WARN L838 $PredicateComparison]: unable to prove that (and (or (forall ((v_arrayElimCell_6 (_ BitVec 32))) (not (= (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32))))) (forall ((ULTIMATE.start_main_~main__t~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_5 (_ BitVec 32)) (v_arrayElimCell_4 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_5) ((_ extract 30 23) v_arrayElimCell_5) ((_ extract 22 0) v_arrayElimCell_5))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4)))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0))) (_ +zero 11 53)) (not (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32)) .cse0)) (not (= .cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32)))) (not (fp.leq ULTIMATE.start_main_~main__t~0 .cse1)) (not (fp.geq ULTIMATE.start_main_~main__t~0 .cse0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-07 02:24:06,845 WARN L860 $PredicateComparison]: unable to prove that (and (or (forall ((v_arrayElimCell_6 (_ BitVec 32))) (not (= (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32))))) (forall ((ULTIMATE.start_main_~main__t~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_5 (_ BitVec 32)) (v_arrayElimCell_4 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_5) ((_ extract 30 23) v_arrayElimCell_5) ((_ extract 22 0) v_arrayElimCell_5))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4)))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0))) (_ +zero 11 53)) (not (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32)) .cse0)) (not (= .cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32)))) (not (fp.leq ULTIMATE.start_main_~main__t~0 .cse1)) (not (fp.geq ULTIMATE.start_main_~main__t~0 .cse0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-07 02:24:08,885 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|)) (.cse8 (let ((.cse10 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) |c_ULTIMATE.start_main_~#main__min~0.offset|))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (and (= (let ((.cse0 (select .cse1 (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~#main__max~0.offset|)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32))) (forall ((ULTIMATE.start_main_~main__t~0 (_ FloatingPoint 8 24))) (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|))) (let ((.cse3 (let ((.cse7 (select .cse6 |c_ULTIMATE.start_main_~#main__max~0.offset|))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse2 (let ((.cse4 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) |c_ULTIMATE.start_main_~#main__min~0.offset|))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode ULTIMATE.start_main_~main__t~0 .cse2) (fp.sub c_currentRoundingMode .cse3 .cse2)))) (_ +zero 11 53)) (not (fp.leq ULTIMATE.start_main_~main__t~0 .cse3)) (not (fp.leq ULTIMATE.start_main_~main__t~0 (let ((.cse5 (select .cse6 (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~#main__max~0.offset|)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (not (fp.geq ULTIMATE.start_main_~main__t~0 |c_ULTIMATE.start_main_#t~mem8|)))))) (= .cse8 ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32))) (= |c_ULTIMATE.start_main_~#main__min~0.offset| (_ bv0 32)) (= (let ((.cse9 (select .cse1 |c_ULTIMATE.start_main_~#main__max~0.offset|))) (fp ((_ extract 31 31) .cse9) ((_ extract 30 23) .cse9) ((_ extract 22 0) .cse9))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32))) (= |c_ULTIMATE.start_main_~#main__max~0.offset| (_ bv0 32)) (= c_currentRoundingMode roundNearestTiesToEven) (= .cse8 |c_ULTIMATE.start_main_#t~mem8|))) is different from false [2021-11-07 02:24:10,945 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|)) (.cse8 (let ((.cse10 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) |c_ULTIMATE.start_main_~#main__min~0.offset|))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (and (= (let ((.cse0 (select .cse1 (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~#main__max~0.offset|)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32))) (forall ((ULTIMATE.start_main_~main__t~0 (_ FloatingPoint 8 24))) (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|))) (let ((.cse3 (let ((.cse7 (select .cse6 |c_ULTIMATE.start_main_~#main__max~0.offset|))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse2 (let ((.cse4 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) |c_ULTIMATE.start_main_~#main__min~0.offset|))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode ULTIMATE.start_main_~main__t~0 .cse2) (fp.sub c_currentRoundingMode .cse3 .cse2)))) (_ +zero 11 53)) (not (fp.leq ULTIMATE.start_main_~main__t~0 .cse3)) (not (fp.leq ULTIMATE.start_main_~main__t~0 (let ((.cse5 (select .cse6 (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~#main__max~0.offset|)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (not (fp.geq ULTIMATE.start_main_~main__t~0 |c_ULTIMATE.start_main_#t~mem8|)))))) (= .cse8 ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32))) (= |c_ULTIMATE.start_main_~#main__min~0.offset| (_ bv0 32)) (= (let ((.cse9 (select .cse1 |c_ULTIMATE.start_main_~#main__max~0.offset|))) (fp ((_ extract 31 31) .cse9) ((_ extract 30 23) .cse9) ((_ extract 22 0) .cse9))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32))) (= |c_ULTIMATE.start_main_~#main__max~0.offset| (_ bv0 32)) (= c_currentRoundingMode roundNearestTiesToEven) (= .cse8 |c_ULTIMATE.start_main_#t~mem8|))) is different from true [2021-11-07 02:24:12,987 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|))) (let ((.cse0 (let ((.cse6 (select .cse4 (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~#main__max~0.offset|)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6)))) (.cse1 (let ((.cse5 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) |c_ULTIMATE.start_main_~#main__min~0.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5)))) (.cse2 (let ((.cse3 (select .cse4 |c_ULTIMATE.start_main_~#main__max~0.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (and (= .cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32))) (= .cse0 |c_ULTIMATE.start_main_#t~mem9|) (= .cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32))) (or (not (fp.leq c_ULTIMATE.start_main_~main__t~0 |c_ULTIMATE.start_main_#t~mem9|)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse1) (fp.sub c_currentRoundingMode .cse2 .cse1))) (_ +zero 11 53)) (not (fp.leq c_ULTIMATE.start_main_~main__t~0 .cse2))) (= |c_ULTIMATE.start_main_~#main__min~0.offset| (_ bv0 32)) (fp.geq c_ULTIMATE.start_main_~main__t~0 .cse1) (= .cse2 ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32))) (= |c_ULTIMATE.start_main_~#main__max~0.offset| (_ bv0 32)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2021-11-07 02:24:15,047 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|))) (let ((.cse0 (let ((.cse6 (select .cse4 (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~#main__max~0.offset|)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6)))) (.cse1 (let ((.cse5 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) |c_ULTIMATE.start_main_~#main__min~0.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5)))) (.cse2 (let ((.cse3 (select .cse4 |c_ULTIMATE.start_main_~#main__max~0.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (and (= .cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32))) (= .cse0 |c_ULTIMATE.start_main_#t~mem9|) (= .cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32))) (or (not (fp.leq c_ULTIMATE.start_main_~main__t~0 |c_ULTIMATE.start_main_#t~mem9|)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse1) (fp.sub c_currentRoundingMode .cse2 .cse1))) (_ +zero 11 53)) (not (fp.leq c_ULTIMATE.start_main_~main__t~0 .cse2))) (= |c_ULTIMATE.start_main_~#main__min~0.offset| (_ bv0 32)) (fp.geq c_ULTIMATE.start_main_~main__t~0 .cse1) (= .cse2 ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32))) (= |c_ULTIMATE.start_main_~#main__max~0.offset| (_ bv0 32)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2021-11-07 02:24:19,127 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|))) (let ((.cse0 (let ((.cse6 (select .cse4 (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~#main__max~0.offset|)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6)))) (.cse1 (let ((.cse5 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|) |c_ULTIMATE.start_main_~#main__min~0.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5)))) (.cse2 (let ((.cse3 (select .cse4 |c_ULTIMATE.start_main_~#main__max~0.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (and (= .cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32))) (fp.leq c_ULTIMATE.start_main_~main__t~0 .cse0) (= .cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32))) (= |c_ULTIMATE.start_main_~#main__min~0.offset| (_ bv0 32)) (fp.geq c_ULTIMATE.start_main_~main__t~0 .cse1) (= .cse2 ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32))) (= |c_ULTIMATE.start_main_~#main__max~0.offset| (_ bv0 32)) (= c_currentRoundingMode roundNearestTiesToEven) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse1) (fp.sub c_currentRoundingMode .cse2 .cse1))) (_ +zero 11 53)) (not (fp.leq c_ULTIMATE.start_main_~main__t~0 .cse2)))))) is different from true [2021-11-07 02:24:21,881 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|)) (.cse7 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|))) (let ((.cse0 (let ((.cse11 (select .cse7 (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~#main__max~0.offset|)))) (fp ((_ extract 31 31) .cse11) ((_ extract 30 23) .cse11) ((_ extract 22 0) .cse11)))) (.cse8 (let ((.cse10 (select .cse4 |c_ULTIMATE.start_main_~#main__min~0.offset|))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (and (= .cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32))) (fp.leq c_ULTIMATE.start_main_~main__t~0 .cse0) (let ((.cse5 (bvmul c_ULTIMATE.start_main_~main__i~0 (_ bv4 32)))) (let ((.cse1 (let ((.cse6 (select .cse7 (bvadd |c_ULTIMATE.start_main_~#main__max~0.offset| .cse5)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))) (or (not (fp.leq c_ULTIMATE.start_main_~main__t~0 .cse1)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse2 (let ((.cse3 (select .cse4 (bvadd |c_ULTIMATE.start_main_~#main__min~0.offset| .cse5)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse2) (fp.sub c_currentRoundingMode .cse1 .cse2)))) (_ +zero 11 53))))) (= .cse8 ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32))) (= |c_ULTIMATE.start_main_~#main__min~0.offset| (_ bv0 32)) (fp.geq c_ULTIMATE.start_main_~main__t~0 .cse8) (= (let ((.cse9 (select .cse7 |c_ULTIMATE.start_main_~#main__max~0.offset|))) (fp ((_ extract 31 31) .cse9) ((_ extract 30 23) .cse9) ((_ extract 22 0) .cse9))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32))) (= |c_ULTIMATE.start_main_~#main__max~0.offset| (_ bv0 32)) (= c_currentRoundingMode roundNearestTiesToEven) (= c_ULTIMATE.start_main_~main__i~0 (_ bv0 32))))) is different from true [2021-11-07 02:24:25,701 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|)) (.cse6 (bvmul c_ULTIMATE.start_main_~main__i~0 (_ bv4 32))) (.cse8 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|))) (let ((.cse1 (let ((.cse11 (select .cse8 (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~#main__max~0.offset|)))) (fp ((_ extract 31 31) .cse11) ((_ extract 30 23) .cse11) ((_ extract 22 0) .cse11)))) (.cse0 (let ((.cse10 (select .cse8 (bvadd |c_ULTIMATE.start_main_~#main__max~0.offset| .cse6)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10)))) (.cse2 (let ((.cse9 (select .cse5 |c_ULTIMATE.start_main_~#main__min~0.offset|))) (fp ((_ extract 31 31) .cse9) ((_ extract 30 23) .cse9) ((_ extract 22 0) .cse9))))) (and (= |c_ULTIMATE.start_main_#t~mem10| .cse0) (= .cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32))) (fp.leq c_ULTIMATE.start_main_~main__t~0 .cse1) (= .cse2 ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32))) (= |c_ULTIMATE.start_main_~#main__min~0.offset| (_ bv0 32)) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse3 (let ((.cse4 (select .cse5 (bvadd |c_ULTIMATE.start_main_~#main__min~0.offset| .cse6)))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse3) (fp.sub c_currentRoundingMode .cse0 .cse3)))) (_ +zero 11 53)) (not (fp.leq c_ULTIMATE.start_main_~main__t~0 |c_ULTIMATE.start_main_#t~mem10|))) (fp.geq c_ULTIMATE.start_main_~main__t~0 .cse2) (= (let ((.cse7 (select .cse8 |c_ULTIMATE.start_main_~#main__max~0.offset|))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32))) (= |c_ULTIMATE.start_main_~#main__max~0.offset| (_ bv0 32)) (= c_currentRoundingMode roundNearestTiesToEven) (= c_ULTIMATE.start_main_~main__i~0 (_ bv0 32))))) is different from true [2021-11-07 02:24:29,254 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0.base|)) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0.base|)) (.cse6 (bvmul c_ULTIMATE.start_main_~main__i~0 (_ bv4 32)))) (let ((.cse0 (let ((.cse10 (select .cse2 (bvadd |c_ULTIMATE.start_main_~#main__max~0.offset| .cse6)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10)))) (.cse7 (let ((.cse9 (select .cse5 |c_ULTIMATE.start_main_~#main__min~0.offset|))) (fp ((_ extract 31 31) .cse9) ((_ extract 30 23) .cse9) ((_ extract 22 0) .cse9))))) (and (fp.leq c_ULTIMATE.start_main_~main__t~0 .cse0) (= (let ((.cse1 (select .cse2 (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~#main__max~0.offset|)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse3 (let ((.cse4 (select .cse5 (bvadd |c_ULTIMATE.start_main_~#main__min~0.offset| .cse6)))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~main__t~0 .cse3) (fp.sub c_currentRoundingMode .cse0 .cse3)))) (_ +zero 11 53)) (= .cse7 ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32))) (= |c_ULTIMATE.start_main_~#main__min~0.offset| (_ bv0 32)) (fp.geq c_ULTIMATE.start_main_~main__t~0 .cse7) (= (let ((.cse8 (select .cse2 |c_ULTIMATE.start_main_~#main__max~0.offset|))) (fp ((_ extract 31 31) .cse8) ((_ extract 30 23) .cse8) ((_ extract 22 0) .cse8))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32))) (= |c_ULTIMATE.start_main_~#main__max~0.offset| (_ bv0 32)) (= c_currentRoundingMode roundNearestTiesToEven) (= c_ULTIMATE.start_main_~main__i~0 (_ bv0 32))))) is different from true [2021-11-07 02:24:31,320 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~main__z~0) (_ +zero 11 53)) (exists ((v_arrayElimCell_1 (_ BitVec 32)) (ULTIMATE.start_main_~main__t~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_2 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2)))) (and (= c_ULTIMATE.start_main_~main__z~0 (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0))) (fp.geq ULTIMATE.start_main_~main__t~0 .cse0) (= .cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32))) (fp.leq ULTIMATE.start_main_~main__t~0 .cse1) (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32)) .cse0))))) is different from false [2021-11-07 02:24:43,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:43,060 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2021-11-07 02:24:43,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 02:24:43,066 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 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 13 [2021-11-07 02:24:43,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:43,067 INFO L225 Difference]: With dead ends: 31 [2021-11-07 02:24:43,068 INFO L226 Difference]: Without dead ends: 26 [2021-11-07 02:24:43,069 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 17 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 98.2s TimeCoverageRelationStatistics Valid=65, Invalid=79, Unknown=34, NotChecked=578, Total=756 [2021-11-07 02:24:43,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-07 02:24:43,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2021-11-07 02:24:43,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:43,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-11-07 02:24:43,075 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 13 [2021-11-07 02:24:43,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:43,076 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-11-07 02:24:43,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 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) [2021-11-07 02:24:43,076 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-11-07 02:24:43,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 02:24:43,077 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:43,077 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:43,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:43,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:24:43,278 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:24:43,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:43,279 INFO L85 PathProgramCache]: Analyzing trace with hash -858361424, now seen corresponding path program 1 times [2021-11-07 02:24:43,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:43,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524113707] [2021-11-07 02:24:43,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:43,280 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:43,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:43,282 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:43,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685661f-4062-47de-8b5f-f5412df9425b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:24:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:44,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 02:24:44,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:47,504 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 02:24:47,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 178 treesize of output 86 [2021-11-07 02:25:50,827 WARN L207 SmtUtils]: Spent 17.75 s on a formula simplification. DAG size of input: 39 DAG size of output: 30 [2021-11-07 02:26:33,680 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~main__t~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_8 (_ BitVec 32)) (v_arrayElimCell_7 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_8) ((_ extract 30 23) v_arrayElimCell_8) ((_ extract 22 0) v_arrayElimCell_8))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_7) ((_ extract 30 23) v_arrayElimCell_7) ((_ extract 22 0) v_arrayElimCell_7)))) (and (= .cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32))) (= (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0)) c_ULTIMATE.start_main_~main__z~0) (= .cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32))) (fp.geq ULTIMATE.start_main_~main__t~0 .cse0) (fp.leq ULTIMATE.start_main_~main__t~0 .cse1)))) (= c_currentRoundingMode roundNearestTiesToEven) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~main__z~0) (_ +zero 11 53))) is different from false [2021-11-07 02:27:46,144 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__t~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_8 (_ BitVec 32)) (v_arrayElimCell_7 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 31 31) v_arrayElimCell_7) ((_ extract 30 23) v_arrayElimCell_7) ((_ extract 22 0) v_arrayElimCell_7))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_8) ((_ extract 30 23) v_arrayElimCell_8) ((_ extract 22 0) v_arrayElimCell_8)))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub roundNearestTiesToEven .cse2 .cse0))))) (and (= .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32))) (not (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (fp.geq .cse1 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~main__t~0 .cse2) (= .cse2 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32))))))) is different from false [2021-11-07 02:27:48,177 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__t~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_8 (_ BitVec 32)) (v_arrayElimCell_7 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 31 31) v_arrayElimCell_7) ((_ extract 30 23) v_arrayElimCell_7) ((_ extract 22 0) v_arrayElimCell_7))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_8) ((_ extract 30 23) v_arrayElimCell_8) ((_ extract 22 0) v_arrayElimCell_8)))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start_main_~main__t~0 .cse0) (fp.sub roundNearestTiesToEven .cse2 .cse0))))) (and (= .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32))) (not (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (fp.geq .cse1 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~main__t~0 .cse2) (= .cse2 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32))))))) is different from true