./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0670.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0670.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba --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 ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:17:06,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:17:06,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:17:06,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:17:06,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:17:06,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:17:06,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:17:06,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:17:06,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:17:06,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:17:06,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:17:06,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:17:06,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:17:06,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:17:06,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:17:06,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:17:06,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:17:06,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:17:06,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:17:06,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:17:06,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:17:06,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:17:06,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:17:06,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:17:06,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:17:06,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:17:06,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:17:06,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:17:06,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:17:06,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:17:06,512 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:17:06,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:17:06,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:17:06,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:17:06,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:17:06,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:17:06,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:17:06,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:17:06,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:17:06,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:17:06,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:17:06,526 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 00:17:06,571 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:17:06,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:17:06,572 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:17:06,572 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:17:06,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:17:06,573 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:17:06,574 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:17:06,574 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:17:06,574 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:17:06,575 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:17:06,576 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:17:06,576 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:17:06,576 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:17:06,577 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:17:06,577 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:17:06,577 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:17:06,577 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:17:06,577 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:17:06,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:17:06,579 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:17:06,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:17:06,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:17:06,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:17:06,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:17:06,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:17:06,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:17:06,581 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:17:06,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:17:06,581 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:17:06,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:17:06,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:17:06,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:17:06,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:17:06,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:17:06,583 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:17:06,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:17:06,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:17:06,584 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:17:06,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:17:06,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:17:06,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:17:06,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 [2022-11-22 00:17:07,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:17:07,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:17:07,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:17:07,080 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:17:07,081 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:17:07,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2022-11-22 00:17:10,469 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:17:10,702 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:17:10,703 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2022-11-22 00:17:10,714 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/data/6139e690d/f8b0e5ddb691440ea79d71c0fb33d279/FLAGc114ac0fd [2022-11-22 00:17:10,743 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/data/6139e690d/f8b0e5ddb691440ea79d71c0fb33d279 [2022-11-22 00:17:10,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:17:10,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:17:10,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:17:10,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:17:10,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:17:10,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:17:10" (1/1) ... [2022-11-22 00:17:10,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d7ede52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:10, skipping insertion in model container [2022-11-22 00:17:10,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:17:10" (1/1) ... [2022-11-22 00:17:10,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:17:10,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:17:11,201 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/sv-benchmarks/c/float-newlib/float_req_bl_0670.c[5373,5386] [2022-11-22 00:17:11,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:17:11,234 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:17:11,320 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/sv-benchmarks/c/float-newlib/float_req_bl_0670.c[5373,5386] [2022-11-22 00:17:11,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:17:11,358 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:17:11,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:11 WrapperNode [2022-11-22 00:17:11,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:17:11,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:17:11,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:17:11,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:17:11,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:11" (1/1) ... [2022-11-22 00:17:11,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:11" (1/1) ... [2022-11-22 00:17:11,447 INFO L138 Inliner]: procedures = 20, calls = 82, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 228 [2022-11-22 00:17:11,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:17:11,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:17:11,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:17:11,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:17:11,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:11" (1/1) ... [2022-11-22 00:17:11,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:11" (1/1) ... [2022-11-22 00:17:11,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:11" (1/1) ... [2022-11-22 00:17:11,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:11" (1/1) ... [2022-11-22 00:17:11,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:11" (1/1) ... [2022-11-22 00:17:11,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:11" (1/1) ... [2022-11-22 00:17:11,533 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:11" (1/1) ... [2022-11-22 00:17:11,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:11" (1/1) ... [2022-11-22 00:17:11,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:17:11,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:17:11,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:17:11,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:17:11,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:11" (1/1) ... [2022-11-22 00:17:11,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:17:11,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:17:11,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:17:11,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:17:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:17:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:17:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:17:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-22 00:17:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:17:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2022-11-22 00:17:11,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2022-11-22 00:17:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-22 00:17:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-11-22 00:17:11,658 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-11-22 00:17:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:17:11,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:17:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:17:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-22 00:17:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2022-11-22 00:17:11,660 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2022-11-22 00:17:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:17:11,850 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:17:11,865 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:17:12,463 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:17:12,589 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:17:12,589 INFO L300 CfgBuilder]: Removed 14 assume(true) statements. [2022-11-22 00:17:12,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:17:12 BoogieIcfgContainer [2022-11-22 00:17:12,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:17:12,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:17:12,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:17:12,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:17:12,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:17:10" (1/3) ... [2022-11-22 00:17:12,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a08fa41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:17:12, skipping insertion in model container [2022-11-22 00:17:12,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:11" (2/3) ... [2022-11-22 00:17:12,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a08fa41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:17:12, skipping insertion in model container [2022-11-22 00:17:12,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:17:12" (3/3) ... [2022-11-22 00:17:12,603 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670.c [2022-11-22 00:17:12,626 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:17:12,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:17:12,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:17:12,687 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4cbe5e77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:17:12,687 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:17:12,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 66 states have (on average 1.6666666666666667) internal successors, (110), 67 states have internal predecessors, (110), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-22 00:17:12,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 00:17:12,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:12,704 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:17:12,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:17:12,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:12,711 INFO L85 PathProgramCache]: Analyzing trace with hash 634393889, now seen corresponding path program 1 times [2022-11-22 00:17:12,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:17:12,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468540466] [2022-11-22 00:17:12,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:12,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:17:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:12,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 00:17:12,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:17:12,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468540466] [2022-11-22 00:17:13,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468540466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:17:13,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:17:13,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:17:13,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67399794] [2022-11-22 00:17:13,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:17:13,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 00:17:13,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:17:13,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 00:17:13,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:17:13,047 INFO L87 Difference]: Start difference. First operand has 78 states, 66 states have (on average 1.6666666666666667) internal successors, (110), 67 states have internal predecessors, (110), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:17:13,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:17:13,115 INFO L93 Difference]: Finished difference Result 149 states and 241 transitions. [2022-11-22 00:17:13,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 00:17:13,118 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2022-11-22 00:17:13,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:17:13,128 INFO L225 Difference]: With dead ends: 149 [2022-11-22 00:17:13,129 INFO L226 Difference]: Without dead ends: 75 [2022-11-22 00:17:13,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:17:13,137 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:17:13,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:17:13,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-22 00:17:13,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-22 00:17:13,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 64 states have (on average 1.421875) internal successors, (91), 64 states have internal predecessors, (91), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-22 00:17:13,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 105 transitions. [2022-11-22 00:17:13,204 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 105 transitions. Word has length 19 [2022-11-22 00:17:13,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:17:13,208 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 105 transitions. [2022-11-22 00:17:13,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:17:13,209 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 105 transitions. [2022-11-22 00:17:13,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-22 00:17:13,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:13,215 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:17:13,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:17:13,216 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:17:13,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:13,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2140627242, now seen corresponding path program 1 times [2022-11-22 00:17:13,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:17:13,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833688712] [2022-11-22 00:17:13,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:13,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:17:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:17:13,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 00:17:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:17:13,490 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 00:17:13,491 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 00:17:13,493 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 00:17:13,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:17:13,500 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 00:17:13,504 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:17:13,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:17:13 BoogieIcfgContainer [2022-11-22 00:17:13,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:17:13,548 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:17:13,548 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:17:13,549 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:17:13,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:17:12" (3/4) ... [2022-11-22 00:17:13,553 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 00:17:13,554 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:17:13,555 INFO L158 Benchmark]: Toolchain (without parser) took 2806.94ms. Allocated memory is still 161.5MB. Free memory was 124.4MB in the beginning and 47.4MB in the end (delta: 77.0MB). Peak memory consumption was 74.0MB. Max. memory is 16.1GB. [2022-11-22 00:17:13,555 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:17:13,556 INFO L158 Benchmark]: CACSL2BoogieTranslator took 609.90ms. Allocated memory is still 161.5MB. Free memory was 124.0MB in the beginning and 122.4MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:17:13,557 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.94ms. Allocated memory is still 161.5MB. Free memory was 122.4MB in the beginning and 120.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:17:13,557 INFO L158 Benchmark]: Boogie Preprocessor took 99.66ms. Allocated memory is still 161.5MB. Free memory was 120.3MB in the beginning and 117.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:17:13,558 INFO L158 Benchmark]: RCFGBuilder took 1041.55ms. Allocated memory is still 161.5MB. Free memory was 117.5MB in the beginning and 86.8MB in the end (delta: 30.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-22 00:17:13,559 INFO L158 Benchmark]: TraceAbstraction took 951.97ms. Allocated memory is still 161.5MB. Free memory was 86.5MB in the beginning and 47.8MB in the end (delta: 38.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-22 00:17:13,559 INFO L158 Benchmark]: Witness Printer took 5.56ms. Allocated memory is still 161.5MB. Free memory was 47.8MB in the beginning and 47.4MB in the end (delta: 450.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:17:13,563 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 609.90ms. Allocated memory is still 161.5MB. Free memory was 124.0MB in the beginning and 122.4MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.94ms. Allocated memory is still 161.5MB. Free memory was 122.4MB in the beginning and 120.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.66ms. Allocated memory is still 161.5MB. Free memory was 120.3MB in the beginning and 117.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1041.55ms. Allocated memory is still 161.5MB. Free memory was 117.5MB in the beginning and 86.8MB in the end (delta: 30.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 951.97ms. Allocated memory is still 161.5MB. Free memory was 86.5MB in the beginning and 47.8MB in the end (delta: 38.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 5.56ms. Allocated memory is still 161.5MB. Free memory was 47.8MB in the beginning and 47.4MB in the end (delta: 450.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 236]: 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 15, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 138, overapproximation of someBinaryArithmeticFLOAToperation at line 140. Possible FailurePath: [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L52-L54] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L120-L121] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L226] float x = __VERIFIER_nondet_float(); [L227] float y = __VERIFIER_nondet_float(); [L229] CALL, EXPR isnan_float(x) VAL [\old(x)=1000000000000000000000000000011, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L15] return x != x; [L229] RET, EXPR isnan_float(x) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, isnan_float(x)=1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000011, zero_atan2=0] [L229] isnan_float(x) || isnan_float(y) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, isnan_float(x)=1, isnan_float(x) || isnan_float(y)=1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000011, zero_atan2=0] [L229] COND TRUE isnan_float(x) || isnan_float(y) [L232] CALL, EXPR __ieee754_atan2f(y, x) [L124] float z; [L125] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=1000000000000000000000000000011, \old(y)=1000000000000000000000000000010, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000011, y=1000000000000000000000000000010, zero_atan2=0] [L128] ieee_float_shape_type gf_u; [L129] gf_u.value = (x) [L130] EXPR gf_u.word [L130] (hx) = gf_u.word [L132] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000011, \old(y)=1000000000000000000000000000010, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-1, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000011, y=1000000000000000000000000000010, zero_atan2=0] [L134] ieee_float_shape_type gf_u; [L135] gf_u.value = (y) [L136] EXPR gf_u.word [L136] (hy) = gf_u.word [L138] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000011, \old(y)=1000000000000000000000000000010, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-1, hy=-2139095042, ix=2139095041, iy=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000011, y=1000000000000000000000000000010, zero_atan2=0] [L139] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L140] return x + y; VAL [\old(x)=1000000000000000000000000000011, \old(y)=1000000000000000000000000000010, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-1, hy=-2139095042, ix=2139095041, iy=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000011, y=1000000000000000000000000000010, zero_atan2=0] [L232] RET, EXPR __ieee754_atan2f(y, x) [L232] float res = __ieee754_atan2f(y, x); [L235] CALL, EXPR isnan_float(res) VAL [\old(x)=1000000000000000000000000000012, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L15] return x != x; [L235] RET, EXPR isnan_float(res) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, isnan_float(res)=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000012, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000011, y=1000000000000000000000000000010, zero_atan2=0] [L235] COND TRUE !isnan_float(res) [L236] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000012, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000011, y=1000000000000000000000000000010, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 97 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 00:17:13,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0670.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba --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 ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:17:16,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:17:16,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:17:16,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:17:16,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:17:16,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:17:16,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:17:16,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:17:16,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:17:16,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:17:16,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:17:16,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:17:16,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:17:16,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:17:16,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:17:16,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:17:16,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:17:16,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:17:16,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:17:16,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:17:16,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:17:16,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:17:16,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:17:16,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:17:16,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:17:16,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:17:16,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:17:16,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:17:16,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:17:16,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:17:16,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:17:16,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:17:16,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:17:16,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:17:16,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:17:16,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:17:16,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:17:16,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:17:16,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:17:16,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:17:16,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:17:16,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-22 00:17:16,567 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:17:16,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:17:16,568 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:17:16,568 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:17:16,569 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:17:16,569 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:17:16,570 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:17:16,570 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:17:16,570 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:17:16,571 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:17:16,571 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:17:16,571 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:17:16,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:17:16,573 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:17:16,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:17:16,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:17:16,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:17:16,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:17:16,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:17:16,575 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 00:17:16,575 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 00:17:16,575 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 00:17:16,576 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:17:16,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:17:16,576 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:17:16,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:17:16,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:17:16,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 00:17:16,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:17:16,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:17:16,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:17:16,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:17:16,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:17:16,578 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 00:17:16,579 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 00:17:16,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:17:16,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:17:16,580 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 00:17:16,580 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_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 [2022-11-22 00:17:16,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:17:17,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:17:17,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:17:17,018 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:17:17,019 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:17:17,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2022-11-22 00:17:20,411 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:17:20,695 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:17:20,696 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2022-11-22 00:17:20,705 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/data/6e1ca98fa/66e93024bda4422f8842ed57f20745c4/FLAGa3609a419 [2022-11-22 00:17:20,723 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/data/6e1ca98fa/66e93024bda4422f8842ed57f20745c4 [2022-11-22 00:17:20,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:17:20,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:17:20,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:17:20,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:17:20,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:17:20,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:17:20" (1/1) ... [2022-11-22 00:17:20,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a015904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:20, skipping insertion in model container [2022-11-22 00:17:20,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:17:20" (1/1) ... [2022-11-22 00:17:20,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:17:20,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:17:21,130 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/sv-benchmarks/c/float-newlib/float_req_bl_0670.c[5373,5386] [2022-11-22 00:17:21,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:17:21,179 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:17:21,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/sv-benchmarks/c/float-newlib/float_req_bl_0670.c[5373,5386] [2022-11-22 00:17:21,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:17:21,317 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:17:21,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:21 WrapperNode [2022-11-22 00:17:21,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:17:21,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:17:21,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:17:21,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:17:21,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:21" (1/1) ... [2022-11-22 00:17:21,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:21" (1/1) ... [2022-11-22 00:17:21,419 INFO L138 Inliner]: procedures = 23, calls = 82, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 226 [2022-11-22 00:17:21,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:17:21,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:17:21,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:17:21,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:17:21,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:21" (1/1) ... [2022-11-22 00:17:21,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:21" (1/1) ... [2022-11-22 00:17:21,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:21" (1/1) ... [2022-11-22 00:17:21,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:21" (1/1) ... [2022-11-22 00:17:21,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:21" (1/1) ... [2022-11-22 00:17:21,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:21" (1/1) ... [2022-11-22 00:17:21,505 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:21" (1/1) ... [2022-11-22 00:17:21,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:21" (1/1) ... [2022-11-22 00:17:21,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:17:21,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:17:21,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:17:21,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:17:21,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:21" (1/1) ... [2022-11-22 00:17:21,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:17:21,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:17:21,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:17:21,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:17:21,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:17:21,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-11-22 00:17:21,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 00:17:21,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:17:21,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-22 00:17:21,655 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2022-11-22 00:17:21,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2022-11-22 00:17:21,655 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-11-22 00:17:21,656 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-11-22 00:17:21,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 00:17:21,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:17:21,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:17:21,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-22 00:17:21,657 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2022-11-22 00:17:21,657 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2022-11-22 00:17:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-22 00:17:21,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:17:21,794 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:17:21,797 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:17:36,571 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:17:36,579 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:17:36,580 INFO L300 CfgBuilder]: Removed 14 assume(true) statements. [2022-11-22 00:17:36,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:17:36 BoogieIcfgContainer [2022-11-22 00:17:36,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:17:36,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:17:36,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:17:36,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:17:36,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:17:20" (1/3) ... [2022-11-22 00:17:36,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437e8bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:17:36, skipping insertion in model container [2022-11-22 00:17:36,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:21" (2/3) ... [2022-11-22 00:17:36,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437e8bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:17:36, skipping insertion in model container [2022-11-22 00:17:36,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:17:36" (3/3) ... [2022-11-22 00:17:36,593 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670.c [2022-11-22 00:17:36,617 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:17:36,617 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:17:36,678 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:17:36,686 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@368fe191, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:17:36,687 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:17:36,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 83 states have (on average 1.6385542168674698) internal successors, (136), 84 states have internal predecessors, (136), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-22 00:17:36,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-22 00:17:36,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:36,704 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:17:36,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:17:36,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:36,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1563192078, now seen corresponding path program 1 times [2022-11-22 00:17:36,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 00:17:36,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214014570] [2022-11-22 00:17:36,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:36,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 00:17:36,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 00:17:36,734 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 00:17:36,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 00:17:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:37,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-22 00:17:37,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:17:37,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:17:37,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:17:37,985 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 00:17:37,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214014570] [2022-11-22 00:17:37,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214014570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:17:37,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:17:37,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:17:37,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696844809] [2022-11-22 00:17:37,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:17:37,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 00:17:37,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 00:17:38,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 00:17:38,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:17:38,034 INFO L87 Difference]: Start difference. First operand has 95 states, 83 states have (on average 1.6385542168674698) internal successors, (136), 84 states have internal predecessors, (136), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:17:38,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:17:38,090 INFO L93 Difference]: Finished difference Result 182 states and 292 transitions. [2022-11-22 00:17:38,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 00:17:38,093 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2022-11-22 00:17:38,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:17:38,107 INFO L225 Difference]: With dead ends: 182 [2022-11-22 00:17:38,107 INFO L226 Difference]: Without dead ends: 91 [2022-11-22 00:17:38,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:17:38,116 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:17:38,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:17:38,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-22 00:17:38,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-11-22 00:17:38,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.45) internal successors, (116), 80 states have internal predecessors, (116), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-22 00:17:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions. [2022-11-22 00:17:38,168 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 21 [2022-11-22 00:17:38,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:17:38,169 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 130 transitions. [2022-11-22 00:17:38,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:17:38,170 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2022-11-22 00:17:38,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-22 00:17:38,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:38,172 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:17:38,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 00:17:38,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 00:17:38,398 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:17:38,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:38,399 INFO L85 PathProgramCache]: Analyzing trace with hash -51219973, now seen corresponding path program 1 times [2022-11-22 00:17:38,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 00:17:38,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739809499] [2022-11-22 00:17:38,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:38,401 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 00:17:38,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 00:17:38,402 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 00:17:38,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-22 00:17:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:39,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-22 00:17:39,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:17:44,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:17:44,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:17:57,416 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:17:57,416 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 00:17:57,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739809499] [2022-11-22 00:17:57,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739809499] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:17:57,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1810423577] [2022-11-22 00:17:57,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:57,418 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 00:17:57,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 00:17:57,425 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 00:17:57,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-22 00:18:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:02,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-22 00:18:02,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:18:06,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 00:18:06,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:18:06,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1810423577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:06,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 00:18:06,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12, 11] total 24 [2022-11-22 00:18:06,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571071608] [2022-11-22 00:18:06,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:06,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 00:18:06,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 00:18:06,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 00:18:06,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2022-11-22 00:18:06,509 INFO L87 Difference]: Start difference. First operand 91 states and 130 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:18:13,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:13,871 INFO L93 Difference]: Finished difference Result 149 states and 216 transitions. [2022-11-22 00:18:13,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 00:18:13,873 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-11-22 00:18:13,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:13,875 INFO L225 Difference]: With dead ends: 149 [2022-11-22 00:18:13,875 INFO L226 Difference]: Without dead ends: 144 [2022-11-22 00:18:13,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=108, Invalid=648, Unknown=0, NotChecked=0, Total=756 [2022-11-22 00:18:13,878 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 73 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:13,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 937 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-22 00:18:13,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-11-22 00:18:13,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 99. [2022-11-22 00:18:13,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 88 states have internal predecessors, (124), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-22 00:18:13,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2022-11-22 00:18:13,896 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 23 [2022-11-22 00:18:13,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:13,897 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2022-11-22 00:18:13,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:18:13,898 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2022-11-22 00:18:13,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 00:18:13,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:13,900 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:18:13,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-22 00:18:14,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-22 00:18:14,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 00:18:14,304 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:18:14,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:14,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1747476300, now seen corresponding path program 1 times [2022-11-22 00:18:14,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 00:18:14,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144549306] [2022-11-22 00:18:14,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:14,306 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 00:18:14,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 00:18:14,307 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 00:18:14,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-22 00:18:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:15,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-22 00:18:15,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:18:17,365 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:18:17,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:18:17,366 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 00:18:17,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144549306] [2022-11-22 00:18:17,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144549306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:17,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:17,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 00:18:17,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492205503] [2022-11-22 00:18:17,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:17,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 00:18:17,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 00:18:17,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 00:18:17,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-22 00:18:17,369 INFO L87 Difference]: Start difference. First operand 99 states and 138 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:18:21,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 00:18:21,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:21,139 INFO L93 Difference]: Finished difference Result 175 states and 249 transitions. [2022-11-22 00:18:21,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 00:18:21,140 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2022-11-22 00:18:21,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:21,142 INFO L225 Difference]: With dead ends: 175 [2022-11-22 00:18:21,142 INFO L226 Difference]: Without dead ends: 91 [2022-11-22 00:18:21,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-22 00:18:21,144 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 23 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:21,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 945 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-22 00:18:21,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-22 00:18:21,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-11-22 00:18:21,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.4375) internal successors, (115), 80 states have internal predecessors, (115), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-22 00:18:21,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2022-11-22 00:18:21,156 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 26 [2022-11-22 00:18:21,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:21,157 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2022-11-22 00:18:21,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:18:21,157 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2022-11-22 00:18:21,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-22 00:18:21,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:21,159 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:18:21,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-22 00:18:21,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 00:18:21,367 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:18:21,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:21,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1251196350, now seen corresponding path program 1 times [2022-11-22 00:18:21,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 00:18:21,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22001627] [2022-11-22 00:18:21,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:21,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 00:18:21,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 00:18:21,371 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 00:18:21,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-22 00:18:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:22,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-22 00:18:22,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:18:26,272 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:18:26,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:18:37,767 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 00:18:37,767 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 00:18:37,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22001627] [2022-11-22 00:18:37,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22001627] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:18:37,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [491171405] [2022-11-22 00:18:37,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:37,768 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 00:18:37,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 00:18:37,771 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 00:18:37,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-22 00:18:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:42,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-22 00:18:42,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:18:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 00:18:47,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:18:47,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [491171405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:47,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 00:18:47,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 10] total 24 [2022-11-22 00:18:47,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222716487] [2022-11-22 00:18:47,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:47,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 00:18:47,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 00:18:47,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 00:18:47,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2022-11-22 00:18:47,973 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 00:18:56,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:56,460 INFO L93 Difference]: Finished difference Result 96 states and 134 transitions. [2022-11-22 00:18:56,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 00:18:56,461 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2022-11-22 00:18:56,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:56,462 INFO L225 Difference]: With dead ends: 96 [2022-11-22 00:18:56,462 INFO L226 Difference]: Without dead ends: 91 [2022-11-22 00:18:56,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=111, Invalid=701, Unknown=0, NotChecked=0, Total=812 [2022-11-22 00:18:56,464 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 72 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:56,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1059 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-22 00:18:56,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-22 00:18:56,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-11-22 00:18:56,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.4125) internal successors, (113), 80 states have internal predecessors, (113), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-22 00:18:56,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 127 transitions. [2022-11-22 00:18:56,475 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 127 transitions. Word has length 28 [2022-11-22 00:18:56,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:56,476 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 127 transitions. [2022-11-22 00:18:56,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 00:18:56,476 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 127 transitions. [2022-11-22 00:18:56,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-22 00:18:56,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:56,478 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:18:56,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-22 00:18:56,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-22 00:18:56,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 00:18:56,891 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:18:56,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:56,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1064048397, now seen corresponding path program 1 times [2022-11-22 00:18:56,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 00:18:56,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964427342] [2022-11-22 00:18:56,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:56,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 00:18:56,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 00:18:56,894 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 00:18:56,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-22 00:18:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:58,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-22 00:18:58,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:18:59,446 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:18:59,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:18:59,447 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 00:18:59,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964427342] [2022-11-22 00:18:59,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964427342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:59,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:59,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 00:18:59,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656350192] [2022-11-22 00:18:59,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:59,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 00:18:59,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 00:18:59,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 00:18:59,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:18:59,450 INFO L87 Difference]: Start difference. First operand 91 states and 127 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 00:19:00,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:19:00,769 INFO L93 Difference]: Finished difference Result 94 states and 129 transitions. [2022-11-22 00:19:00,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 00:19:00,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-11-22 00:19:00,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:19:00,770 INFO L225 Difference]: With dead ends: 94 [2022-11-22 00:19:00,770 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 00:19:00,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-22 00:19:00,772 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 5 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:19:00,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 69 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 00:19:00,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 00:19:00,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 00:19:00,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:19:00,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 00:19:00,774 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2022-11-22 00:19:00,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:19:00,775 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 00:19:00,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 00:19:00,775 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 00:19:00,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 00:19:00,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 00:19:00,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-22 00:19:00,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 00:19:00,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 00:19:02,205 INFO L899 garLoopResultBuilder]: For program point isnan_floatFINAL(line 15) no Hoare annotation was computed. [2022-11-22 00:19:02,205 INFO L902 garLoopResultBuilder]: At program point isnan_floatENTRY(line 15) the Hoare annotation is: true [2022-11-22 00:19:02,205 INFO L899 garLoopResultBuilder]: For program point isnan_floatEXIT(line 15) no Hoare annotation was computed. [2022-11-22 00:19:02,206 INFO L899 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 17 30) no Hoare annotation was computed. [2022-11-22 00:19:02,207 INFO L899 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 17 30) no Hoare annotation was computed. [2022-11-22 00:19:02,207 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 28) no Hoare annotation was computed. [2022-11-22 00:19:02,207 INFO L902 garLoopResultBuilder]: At program point L24-1(lines 17 30) the Hoare annotation is: true [2022-11-22 00:19:02,207 INFO L902 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 17 30) the Hoare annotation is: true [2022-11-22 00:19:02,208 INFO L899 garLoopResultBuilder]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2022-11-22 00:19:02,208 INFO L899 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2022-11-22 00:19:02,208 INFO L902 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: true [2022-11-22 00:19:02,208 INFO L899 garLoopResultBuilder]: For program point L201-1(lines 201 205) no Hoare annotation was computed. [2022-11-22 00:19:02,209 INFO L895 garLoopResultBuilder]: At program point L201-2(lines 201 205) the Hoare annotation is: false [2022-11-22 00:19:02,209 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 00:19:02,209 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-11-22 00:19:02,209 INFO L895 garLoopResultBuilder]: At program point L235(line 235) the Hoare annotation is: (let ((.cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_#res#1| |ULTIMATE.start___ieee754_atan2f_#res#1|))) (.cse1 (not (fp.eq |ULTIMATE.start_main_~res~0#1| |ULTIMATE.start_main_~res~0#1|)))) (or (and .cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|)) .cse1) (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) .cse0 .cse1))) [2022-11-22 00:19:02,209 INFO L899 garLoopResultBuilder]: For program point L235-1(lines 235 238) no Hoare annotation was computed. [2022-11-22 00:19:02,210 INFO L899 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2022-11-22 00:19:02,210 INFO L899 garLoopResultBuilder]: For program point L236(line 236) no Hoare annotation was computed. [2022-11-22 00:19:02,210 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 140) no Hoare annotation was computed. [2022-11-22 00:19:02,210 INFO L895 garLoopResultBuilder]: At program point L123(lines 123 218) the Hoare annotation is: (let ((.cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_#res#1| |ULTIMATE.start___ieee754_atan2f_#res#1|)))) (or (and .cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|))) (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) .cse0))) [2022-11-22 00:19:02,211 INFO L899 garLoopResultBuilder]: For program point L206(lines 206 210) no Hoare annotation was computed. [2022-11-22 00:19:02,211 INFO L899 garLoopResultBuilder]: For program point L173(lines 173 182) no Hoare annotation was computed. [2022-11-22 00:19:02,211 INFO L895 garLoopResultBuilder]: At program point L206-1(lines 199 211) the Hoare annotation is: false [2022-11-22 00:19:02,211 INFO L899 garLoopResultBuilder]: For program point L206-2(lines 206 210) no Hoare annotation was computed. [2022-11-22 00:19:02,211 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 00:19:02,212 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 195) no Hoare annotation was computed. [2022-11-22 00:19:02,212 INFO L899 garLoopResultBuilder]: For program point L174(line 174) no Hoare annotation was computed. [2022-11-22 00:19:02,212 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 142) no Hoare annotation was computed. [2022-11-22 00:19:02,212 INFO L902 garLoopResultBuilder]: At program point L241(lines 220 242) the Hoare annotation is: true [2022-11-22 00:19:02,213 INFO L895 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: false [2022-11-22 00:19:02,213 INFO L899 garLoopResultBuilder]: For program point L142-1(line 142) no Hoare annotation was computed. [2022-11-22 00:19:02,213 INFO L899 garLoopResultBuilder]: For program point L192(lines 192 195) no Hoare annotation was computed. [2022-11-22 00:19:02,213 INFO L899 garLoopResultBuilder]: For program point L192-2(lines 190 195) no Hoare annotation was computed. [2022-11-22 00:19:02,213 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-11-22 00:19:02,214 INFO L899 garLoopResultBuilder]: For program point L160(lines 160 184) no Hoare annotation was computed. [2022-11-22 00:19:02,214 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 123 218) no Hoare annotation was computed. [2022-11-22 00:19:02,214 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2022-11-22 00:19:02,214 INFO L895 garLoopResultBuilder]: At program point L127-2(lines 127 131) the Hoare annotation is: (or (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|)) (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) (not (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|)))) [2022-11-22 00:19:02,214 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-22 00:19:02,215 INFO L899 garLoopResultBuilder]: For program point L127-3(lines 127 131) no Hoare annotation was computed. [2022-11-22 00:19:02,215 INFO L899 garLoopResultBuilder]: For program point L161(lines 161 183) no Hoare annotation was computed. [2022-11-22 00:19:02,215 INFO L899 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2022-11-22 00:19:02,215 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 155) no Hoare annotation was computed. [2022-11-22 00:19:02,215 INFO L899 garLoopResultBuilder]: For program point L145-2(lines 123 218) no Hoare annotation was computed. [2022-11-22 00:19:02,216 INFO L895 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: false [2022-11-22 00:19:02,216 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 171) no Hoare annotation was computed. [2022-11-22 00:19:02,216 INFO L895 garLoopResultBuilder]: At program point L195-1(line 195) the Hoare annotation is: false [2022-11-22 00:19:02,216 INFO L899 garLoopResultBuilder]: For program point L195-2(line 195) no Hoare annotation was computed. [2022-11-22 00:19:02,216 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 154) no Hoare annotation was computed. [2022-11-22 00:19:02,217 INFO L902 garLoopResultBuilder]: At program point L229(line 229) the Hoare annotation is: true [2022-11-22 00:19:02,217 INFO L899 garLoopResultBuilder]: For program point L229-1(line 229) no Hoare annotation was computed. [2022-11-22 00:19:02,217 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 217) no Hoare annotation was computed. [2022-11-22 00:19:02,217 INFO L899 garLoopResultBuilder]: For program point L229-2(line 229) no Hoare annotation was computed. [2022-11-22 00:19:02,217 INFO L899 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2022-11-22 00:19:02,218 INFO L895 garLoopResultBuilder]: At program point L229-4(line 229) the Hoare annotation is: (let ((.cse1 (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse0 (not .cse1))) (and (or (and |ULTIMATE.start_main_#t~short40#1| .cse0) (and (not |ULTIMATE.start_main_#t~short40#1|) .cse1)) (or (and (= |ULTIMATE.start_main_#t~ret38#1| (_ bv0 32)) .cse1) (and .cse0 (= |ULTIMATE.start_main_#t~ret38#1| (_ bv1 32))))))) [2022-11-22 00:19:02,218 INFO L899 garLoopResultBuilder]: For program point L229-5(line 229) no Hoare annotation was computed. [2022-11-22 00:19:02,218 INFO L899 garLoopResultBuilder]: For program point L229-6(lines 229 239) no Hoare annotation was computed. [2022-11-22 00:19:02,218 INFO L899 garLoopResultBuilder]: For program point L229-8(lines 229 239) no Hoare annotation was computed. [2022-11-22 00:19:02,219 INFO L899 garLoopResultBuilder]: For program point L213(line 213) no Hoare annotation was computed. [2022-11-22 00:19:02,219 INFO L899 garLoopResultBuilder]: For program point L180(line 180) no Hoare annotation was computed. [2022-11-22 00:19:02,219 INFO L899 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2022-11-22 00:19:02,219 INFO L899 garLoopResultBuilder]: For program point L147-2(line 147) no Hoare annotation was computed. [2022-11-22 00:19:02,219 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-11-22 00:19:02,220 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-22 00:19:02,220 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 236) no Hoare annotation was computed. [2022-11-22 00:19:02,220 INFO L899 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2022-11-22 00:19:02,220 INFO L899 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2022-11-22 00:19:02,220 INFO L899 garLoopResultBuilder]: For program point L215(line 215) no Hoare annotation was computed. [2022-11-22 00:19:02,221 INFO L899 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2022-11-22 00:19:02,221 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 133 137) no Hoare annotation was computed. [2022-11-22 00:19:02,221 INFO L895 garLoopResultBuilder]: At program point L133-2(lines 133 137) the Hoare annotation is: (or (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) (exists ((|ULTIMATE.start___ieee754_atan2f_~hx~1#1| (_ BitVec 32))) (and (= |ULTIMATE.start___ieee754_atan2f_~ix~2#1| (bvand (_ bv2147483647 32) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)) (not (let ((.cse0 (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)))) (fp.eq .cse0 .cse0))))) (not (let ((.cse1 (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)))) (fp.eq .cse1 .cse1))) (not (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|))) [2022-11-22 00:19:02,222 INFO L899 garLoopResultBuilder]: For program point L133-3(lines 133 137) no Hoare annotation was computed. [2022-11-22 00:19:02,222 INFO L899 garLoopResultBuilder]: For program point L150(line 150) no Hoare annotation was computed. [2022-11-22 00:19:02,222 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-11-22 00:19:02,222 INFO L902 garLoopResultBuilder]: At program point atan_floatENTRY(lines 56 118) the Hoare annotation is: true [2022-11-22 00:19:02,222 INFO L899 garLoopResultBuilder]: For program point atan_floatFINAL(lines 56 118) no Hoare annotation was computed. [2022-11-22 00:19:02,223 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2022-11-22 00:19:02,223 INFO L902 garLoopResultBuilder]: At program point L60-2(lines 60 64) the Hoare annotation is: true [2022-11-22 00:19:02,223 INFO L899 garLoopResultBuilder]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2022-11-22 00:19:02,223 INFO L902 garLoopResultBuilder]: At program point L81(line 81) the Hoare annotation is: true [2022-11-22 00:19:02,223 INFO L899 garLoopResultBuilder]: For program point L81-1(line 81) no Hoare annotation was computed. [2022-11-22 00:19:02,224 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 72) no Hoare annotation was computed. [2022-11-22 00:19:02,224 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 98) no Hoare annotation was computed. [2022-11-22 00:19:02,224 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 99) no Hoare annotation was computed. [2022-11-22 00:19:02,224 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 73) no Hoare annotation was computed. [2022-11-22 00:19:02,224 INFO L899 garLoopResultBuilder]: For program point L91(lines 91 97) no Hoare annotation was computed. [2022-11-22 00:19:02,225 INFO L899 garLoopResultBuilder]: For program point L91-2(lines 74 99) no Hoare annotation was computed. [2022-11-22 00:19:02,225 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 89) no Hoare annotation was computed. [2022-11-22 00:19:02,225 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 117) no Hoare annotation was computed. [2022-11-22 00:19:02,225 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 78) no Hoare annotation was computed. [2022-11-22 00:19:02,225 INFO L899 garLoopResultBuilder]: For program point L75-2(lines 75 78) no Hoare annotation was computed. [2022-11-22 00:19:02,226 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 68) no Hoare annotation was computed. [2022-11-22 00:19:02,226 INFO L899 garLoopResultBuilder]: For program point atan_floatEXIT(lines 56 118) no Hoare annotation was computed. [2022-11-22 00:19:02,226 INFO L899 garLoopResultBuilder]: For program point L76(lines 76 77) no Hoare annotation was computed. [2022-11-22 00:19:02,230 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-22 00:19:02,232 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:19:02,246 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,247 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,247 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,247 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,248 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,248 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,248 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,249 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,250 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,250 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,250 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,250 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,251 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,251 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:19:02 BoogieIcfgContainer [2022-11-22 00:19:02,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:19:02,253 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:19:02,253 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:19:02,254 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:19:02,254 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:17:36" (3/4) ... [2022-11-22 00:19:02,258 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 00:19:02,266 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2022-11-22 00:19:02,266 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2022-11-22 00:19:02,267 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2022-11-22 00:19:02,275 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-22 00:19:02,275 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-22 00:19:02,276 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 00:19:02,277 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 00:19:02,327 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!~fp.eq~FLOAT(x, x) && (\exists ULTIMATE.start___ieee754_atan2f_~hx~1#1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_atan2f_~hx~1#1) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0]), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0])))) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && !~fp.eq~FLOAT(x, x)) || !~fp.eq~FLOAT(y, y) [2022-11-22 00:19:02,328 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~fp.eq~FLOAT(\result, \result) && !~fp.eq~FLOAT(y, y)) || (!~fp.eq~FLOAT(x, x) && !~fp.eq~FLOAT(\result, \result)) [2022-11-22 00:19:02,390 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:19:02,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:19:02,392 INFO L158 Benchmark]: Toolchain (without parser) took 101663.08ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 36.7MB in the beginning and 69.1MB in the end (delta: -32.3MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-11-22 00:19:02,392 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 67.1MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 49.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:19:02,392 INFO L158 Benchmark]: CACSL2BoogieTranslator took 588.78ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 36.6MB in the beginning and 70.4MB in the end (delta: -33.9MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-11-22 00:19:02,393 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.60ms. Allocated memory is still 96.5MB. Free memory was 70.4MB in the beginning and 68.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:19:02,393 INFO L158 Benchmark]: Boogie Preprocessor took 91.04ms. Allocated memory is still 96.5MB. Free memory was 68.1MB in the beginning and 65.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:19:02,394 INFO L158 Benchmark]: RCFGBuilder took 15067.41ms. Allocated memory is still 96.5MB. Free memory was 65.1MB in the beginning and 60.7MB in the end (delta: 4.4MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2022-11-22 00:19:02,394 INFO L158 Benchmark]: TraceAbstraction took 85668.07ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 51.2MB in the end (delta: 8.8MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2022-11-22 00:19:02,395 INFO L158 Benchmark]: Witness Printer took 137.72ms. Allocated memory is still 96.5MB. Free memory was 51.2MB in the beginning and 69.1MB in the end (delta: -17.9MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2022-11-22 00:19:02,398 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 67.1MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 49.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 588.78ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 36.6MB in the beginning and 70.4MB in the end (delta: -33.9MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.60ms. Allocated memory is still 96.5MB. Free memory was 70.4MB in the beginning and 68.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.04ms. Allocated memory is still 96.5MB. Free memory was 68.1MB in the beginning and 65.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 15067.41ms. Allocated memory is still 96.5MB. Free memory was 65.1MB in the beginning and 60.7MB in the end (delta: 4.4MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * TraceAbstraction took 85668.07ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 51.2MB in the end (delta: 8.8MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Witness Printer took 137.72ms. Allocated memory is still 96.5MB. Free memory was 51.2MB in the beginning and 69.1MB in the end (delta: -17.9MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 236]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 85.6s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182 SdHoareTripleChecker+Valid, 14.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 173 mSDsluCounter, 3145 SdHoareTripleChecker+Invalid, 13.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2635 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 392 IncrementalHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 510 mSDtfsCounter, 392 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 239 GetRequests, 161 SyntacticMatches, 4 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 6 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 37.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=2, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 45 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 55 PreInvPairs, 64 NumberOfFragments, 157 HoareAnnotationTreeSize, 55 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 14.8s SatisfiabilityAnalysisTime, 46.1s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 222 ConstructedInterpolants, 35 QuantifiedInterpolants, 1541 SizeOfPredicates, 67 NumberOfNonLiveVariables, 906 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 38/51 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(y, y) || (!~fp.eq~FLOAT(x, x) && !~fp.eq~FLOAT(x, x)) - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: (!~fp.eq~FLOAT(\result, \result) && !~fp.eq~FLOAT(y, y)) || (!~fp.eq~FLOAT(x, x) && !~fp.eq~FLOAT(\result, \result)) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant [2022-11-22 00:19:02,447 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,447 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,447 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,447 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,448 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,448 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,448 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,449 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,449 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,449 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,449 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,449 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,450 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-11-22 00:19:02,450 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] Derived loop invariant: (((!~fp.eq~FLOAT(x, x) && (\exists ULTIMATE.start___ieee754_atan2f_~hx~1#1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_atan2f_~hx~1#1) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0]), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0])))) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && !~fp.eq~FLOAT(x, x)) || !~fp.eq~FLOAT(y, y) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-22 00:19:02,657 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-22 00:19:02,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf579572-b727-4131-93b1-0646eb0eb666/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE