./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0663a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0663a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a1b9ef3c37243ea1f2055947b64f65c02591cc70d7ea8c31a5f3a0bcc617aaa7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:37:57,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:37:57,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:37:57,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:37:57,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:37:57,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:37:57,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:37:57,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:37:57,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:37:57,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:37:57,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:37:57,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:37:57,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:37:57,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:37:57,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:37:57,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:37:57,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:37:57,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:37:57,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:37:57,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:37:57,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:37:57,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:37:57,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:37:57,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:37:57,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:37:57,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:37:57,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:37:57,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:37:57,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:37:57,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:37:57,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:37:57,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:37:57,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:37:57,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:37:57,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:37:57,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:37:57,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:37:57,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:37:57,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:37:57,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:37:57,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:37:57,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:37:57,576 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:37:57,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:37:57,577 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:37:57,577 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:37:57,578 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:37:57,579 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:37:57,579 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:37:57,579 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:37:57,579 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:37:57,580 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:37:57,581 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:37:57,581 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:37:57,581 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:37:57,581 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:37:57,582 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:37:57,582 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:37:57,582 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:37:57,582 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:37:57,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:37:57,583 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:37:57,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:37:57,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:37:57,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:37:57,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:37:57,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:37:57,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:37:57,586 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:37:57,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:37:57,586 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:37:57,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:37:57,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:37:57,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:37:57,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:37:57,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:37:57,588 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:37:57,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:37:57,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:37:57,589 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:37:57,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:37:57,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:37:57,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:37:57,589 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_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1b9ef3c37243ea1f2055947b64f65c02591cc70d7ea8c31a5f3a0bcc617aaa7 [2022-11-03 02:37:57,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:37:57,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:37:57,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:37:57,983 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:37:57,985 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:37:57,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2022-11-03 02:37:58,064 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/data/f5604f512/fbca63942eb745cfbfb739223569b6d3/FLAG79070a5fb [2022-11-03 02:37:58,682 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:37:58,683 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2022-11-03 02:37:58,691 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/data/f5604f512/fbca63942eb745cfbfb739223569b6d3/FLAG79070a5fb [2022-11-03 02:37:59,009 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/data/f5604f512/fbca63942eb745cfbfb739223569b6d3 [2022-11-03 02:37:59,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:37:59,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:37:59,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:37:59,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:37:59,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:37:59,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:37:59" (1/1) ... [2022-11-03 02:37:59,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44a1a7e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:59, skipping insertion in model container [2022-11-03 02:37:59,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:37:59" (1/1) ... [2022-11-03 02:37:59,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:37:59,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:37:59,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c[6220,6233] [2022-11-03 02:37:59,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:37:59,448 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:37:59,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c[6220,6233] [2022-11-03 02:37:59,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:37:59,570 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:37:59,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:59 WrapperNode [2022-11-03 02:37:59,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:37:59,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:37:59,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:37:59,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:37:59,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:59" (1/1) ... [2022-11-03 02:37:59,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:59" (1/1) ... [2022-11-03 02:37:59,657 INFO L138 Inliner]: procedures = 19, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 227 [2022-11-03 02:37:59,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:37:59,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:37:59,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:37:59,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:37:59,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:59" (1/1) ... [2022-11-03 02:37:59,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:59" (1/1) ... [2022-11-03 02:37:59,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:59" (1/1) ... [2022-11-03 02:37:59,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:59" (1/1) ... [2022-11-03 02:37:59,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:59" (1/1) ... [2022-11-03 02:37:59,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:59" (1/1) ... [2022-11-03 02:37:59,740 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:59" (1/1) ... [2022-11-03 02:37:59,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:59" (1/1) ... [2022-11-03 02:37:59,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:37:59,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:37:59,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:37:59,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:37:59,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:59" (1/1) ... [2022-11-03 02:37:59,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:37:59,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:59,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:37:59,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:37:59,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:37:59,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:37:59,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:37:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-03 02:37:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:37:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-11-03 02:37:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-11-03 02:37:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-03 02:37:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-11-03 02:37:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-11-03 02:37:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:37:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:37:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:37:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-03 02:37:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:38:00,039 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:38:00,041 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:38:00,639 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:38:00,778 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:38:00,778 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-03 02:38:00,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:38:00 BoogieIcfgContainer [2022-11-03 02:38:00,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:38:00,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:38:00,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:38:00,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:38:00,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:37:59" (1/3) ... [2022-11-03 02:38:00,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7342cbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:38:00, skipping insertion in model container [2022-11-03 02:38:00,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:37:59" (2/3) ... [2022-11-03 02:38:00,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7342cbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:38:00, skipping insertion in model container [2022-11-03 02:38:00,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:38:00" (3/3) ... [2022-11-03 02:38:00,804 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663a.c [2022-11-03 02:38:00,842 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:38:00,842 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:38:00,928 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:38:00,938 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;@1e8559a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:38:00,939 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:38:00,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 64 states have (on average 1.703125) internal successors, (109), 65 states have internal predecessors, (109), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:38:00,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:38:00,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:38:00,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:38:00,954 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:38:00,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:38:00,960 INFO L85 PathProgramCache]: Analyzing trace with hash -335795953, now seen corresponding path program 1 times [2022-11-03 02:38:00,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:38:00,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557460709] [2022-11-03 02:38:00,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:38:00,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:38:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:38:01,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:38:01,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:38:01,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557460709] [2022-11-03 02:38:01,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557460709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:38:01,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:38:01,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:38:01,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052845714] [2022-11-03 02:38:01,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:38:01,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:38:01,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:38:01,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:38:01,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:38:01,359 INFO L87 Difference]: Start difference. First operand has 72 states, 64 states have (on average 1.703125) internal successors, (109), 65 states have internal predecessors, (109), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:38:01,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:38:01,446 INFO L93 Difference]: Finished difference Result 142 states and 235 transitions. [2022-11-03 02:38:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:38:01,449 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-03 02:38:01,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:38:01,460 INFO L225 Difference]: With dead ends: 142 [2022-11-03 02:38:01,460 INFO L226 Difference]: Without dead ends: 69 [2022-11-03 02:38:01,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:38:01,479 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:38:01,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:38:01,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-03 02:38:01,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-03 02:38:01,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 62 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:38:01,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 96 transitions. [2022-11-03 02:38:01,534 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 96 transitions. Word has length 10 [2022-11-03 02:38:01,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:38:01,535 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 96 transitions. [2022-11-03 02:38:01,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:38:01,536 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 96 transitions. [2022-11-03 02:38:01,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:38:01,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:38:01,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:38:01,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:38:01,539 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:38:01,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:38:01,542 INFO L85 PathProgramCache]: Analyzing trace with hash -548463592, now seen corresponding path program 1 times [2022-11-03 02:38:01,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:38:01,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409373458] [2022-11-03 02:38:01,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:38:01,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:38:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:38:01,750 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:38:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:38:01,855 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:38:01,856 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:38:01,857 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:38:01,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:38:01,863 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 02:38:01,866 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:38:01,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:38:01 BoogieIcfgContainer [2022-11-03 02:38:01,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:38:01,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:38:01,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:38:01,897 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:38:01,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:38:00" (3/4) ... [2022-11-03 02:38:01,901 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 02:38:01,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:38:01,902 INFO L158 Benchmark]: Toolchain (without parser) took 2887.96ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 75.8MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 02:38:01,902 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:38:01,903 INFO L158 Benchmark]: CACSL2BoogieTranslator took 555.83ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 88.9MB in the end (delta: -8.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 02:38:01,903 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.42ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 85.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:38:01,904 INFO L158 Benchmark]: Boogie Preprocessor took 85.45ms. Allocated memory is still 117.4MB. Free memory was 85.9MB in the beginning and 82.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:38:01,904 INFO L158 Benchmark]: RCFGBuilder took 1034.14ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 86.1MB in the end (delta: -3.5MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2022-11-03 02:38:01,905 INFO L158 Benchmark]: TraceAbstraction took 1112.32ms. Allocated memory is still 117.4MB. Free memory was 85.5MB in the beginning and 75.8MB in the end (delta: 9.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-11-03 02:38:01,905 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 117.4MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:38:01,908 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 555.83ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 88.9MB in the end (delta: -8.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.42ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 85.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.45ms. Allocated memory is still 117.4MB. Free memory was 85.9MB in the beginning and 82.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1034.14ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 86.1MB in the end (delta: -3.5MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1112.32ms. Allocated memory is still 117.4MB. Free memory was 85.5MB in the beginning and 75.8MB in the end (delta: 9.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 117.4MB. Free memory is still 75.8MB. 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: 262]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 261. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L253] double x = -0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE y > 0.0 [L258] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2, ix=1, lx=10, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2, hy=11, ix=1, iy=0, lx=10, ly=-1, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2, hy=11, ix=1, iy=0, lx=10, ly=-1, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L258] RET, EXPR __ieee754_atan2(y, x) [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L262] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 87 mSDtfsCounter, 13 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=72occurred 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, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-03 02:38:01,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0663a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a1b9ef3c37243ea1f2055947b64f65c02591cc70d7ea8c31a5f3a0bcc617aaa7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:38:04,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:38:04,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:38:04,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:38:04,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:38:04,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:38:04,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:38:04,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:38:04,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:38:04,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:38:04,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:38:04,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:38:04,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:38:04,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:38:04,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:38:04,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:38:04,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:38:04,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:38:04,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:38:04,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:38:04,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:38:04,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:38:04,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:38:04,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:38:04,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:38:04,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:38:04,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:38:04,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:38:04,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:38:04,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:38:04,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:38:04,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:38:04,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:38:04,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:38:04,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:38:04,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:38:04,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:38:04,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:38:04,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:38:04,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:38:04,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:38:04,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-03 02:38:04,528 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:38:04,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:38:04,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:38:04,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:38:04,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:38:04,532 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:38:04,532 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:38:04,532 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:38:04,532 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:38:04,533 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:38:04,534 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:38:04,534 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:38:04,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:38:04,536 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:38:04,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:38:04,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:38:04,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:38:04,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:38:04,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:38:04,538 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 02:38:04,538 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 02:38:04,538 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 02:38:04,538 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:38:04,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:38:04,539 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:38:04,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:38:04,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:38:04,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 02:38:04,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:38:04,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:38:04,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:38:04,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:38:04,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:38:04,542 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 02:38:04,542 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 02:38:04,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:38:04,543 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:38:04,543 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 02:38:04,543 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_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1b9ef3c37243ea1f2055947b64f65c02591cc70d7ea8c31a5f3a0bcc617aaa7 [2022-11-03 02:38:04,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:38:04,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:38:04,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:38:04,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:38:04,967 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:38:04,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2022-11-03 02:38:05,041 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/data/ca42b884f/ec4167a132e24a14a359c13c145f126e/FLAG2b102d764 [2022-11-03 02:38:05,580 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:38:05,581 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2022-11-03 02:38:05,598 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/data/ca42b884f/ec4167a132e24a14a359c13c145f126e/FLAG2b102d764 [2022-11-03 02:38:05,931 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/data/ca42b884f/ec4167a132e24a14a359c13c145f126e [2022-11-03 02:38:05,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:38:05,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:38:05,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:38:05,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:38:05,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:38:05,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:38:05" (1/1) ... [2022-11-03 02:38:05,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a329c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:05, skipping insertion in model container [2022-11-03 02:38:05,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:38:05" (1/1) ... [2022-11-03 02:38:05,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:38:06,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:38:06,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c[6220,6233] [2022-11-03 02:38:06,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:38:06,344 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:38:06,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c[6220,6233] [2022-11-03 02:38:06,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:38:06,446 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:38:06,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:06 WrapperNode [2022-11-03 02:38:06,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:38:06,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:38:06,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:38:06,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:38:06,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:06" (1/1) ... [2022-11-03 02:38:06,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:06" (1/1) ... [2022-11-03 02:38:06,494 INFO L138 Inliner]: procedures = 22, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 228 [2022-11-03 02:38:06,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:38:06,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:38:06,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:38:06,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:38:06,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:06" (1/1) ... [2022-11-03 02:38:06,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:06" (1/1) ... [2022-11-03 02:38:06,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:06" (1/1) ... [2022-11-03 02:38:06,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:06" (1/1) ... [2022-11-03 02:38:06,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:06" (1/1) ... [2022-11-03 02:38:06,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:06" (1/1) ... [2022-11-03 02:38:06,540 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:06" (1/1) ... [2022-11-03 02:38:06,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:06" (1/1) ... [2022-11-03 02:38:06,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:38:06,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:38:06,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:38:06,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:38:06,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:06" (1/1) ... [2022-11-03 02:38:06,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:38:06,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:38:06,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:38:06,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:38:06,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:38:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-03 02:38:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-03 02:38:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 02:38:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:38:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-11-03 02:38:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-11-03 02:38:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-11-03 02:38:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-11-03 02:38:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-11-03 02:38:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-03 02:38:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:38:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:38:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-03 02:38:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:38:06,797 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:38:06,799 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:38:27,354 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:38:27,361 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:38:27,361 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-03 02:38:27,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:38:27 BoogieIcfgContainer [2022-11-03 02:38:27,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:38:27,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:38:27,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:38:27,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:38:27,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:38:05" (1/3) ... [2022-11-03 02:38:27,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3296f443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:38:27, skipping insertion in model container [2022-11-03 02:38:27,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:06" (2/3) ... [2022-11-03 02:38:27,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3296f443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:38:27, skipping insertion in model container [2022-11-03 02:38:27,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:38:27" (3/3) ... [2022-11-03 02:38:27,374 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663a.c [2022-11-03 02:38:27,396 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:38:27,396 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:38:27,447 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:38:27,453 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;@5f19773e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:38:27,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:38:27,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 86 states have (on average 1.6627906976744187) internal successors, (143), 87 states have internal predecessors, (143), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:38:27,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:38:27,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:38:27,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:38:27,467 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:38:27,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:38:27,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2113749773, now seen corresponding path program 1 times [2022-11-03 02:38:27,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:38:27,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469120869] [2022-11-03 02:38:27,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:38:27,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:38:27,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:38:27,492 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:38:27,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 02:38:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:38:27,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 02:38:27,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:38:28,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:38:28,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:38:28,010 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:38:28,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469120869] [2022-11-03 02:38:28,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [469120869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:38:28,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:38:28,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:38:28,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857581177] [2022-11-03 02:38:28,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:38:28,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:38:28,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:38:28,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:38:28,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:38:28,050 INFO L87 Difference]: Start difference. First operand has 94 states, 86 states have (on average 1.6627906976744187) internal successors, (143), 87 states have internal predecessors, (143), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:38:28,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:38:28,086 INFO L93 Difference]: Finished difference Result 185 states and 302 transitions. [2022-11-03 02:38:28,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:38:28,090 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-03 02:38:28,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:38:28,100 INFO L225 Difference]: With dead ends: 185 [2022-11-03 02:38:28,100 INFO L226 Difference]: Without dead ends: 90 [2022-11-03 02:38:28,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:38:28,110 INFO L413 NwaCegarLoop]: 134 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, 134 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:38:28,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:38:28,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-03 02:38:28,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-11-03 02:38:28,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.4578313253012047) internal successors, (121), 83 states have internal predecessors, (121), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:38:28,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2022-11-03 02:38:28,156 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 11 [2022-11-03 02:38:28,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:38:28,157 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2022-11-03 02:38:28,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:38:28,157 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2022-11-03 02:38:28,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 02:38:28,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:38:28,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:38:28,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-03 02:38:28,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:38:28,362 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:38:28,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:38:28,363 INFO L85 PathProgramCache]: Analyzing trace with hash -177099114, now seen corresponding path program 1 times [2022-11-03 02:38:28,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:38:28,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727149079] [2022-11-03 02:38:28,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:38:28,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:38:28,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:38:28,368 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:38:28,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 02:38:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:38:28,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 02:38:28,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:38:29,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 16 [2022-11-03 02:38:30,846 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2022-11-03 02:38:36,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:38:36,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:38:36,421 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:38:36,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727149079] [2022-11-03 02:38:36,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727149079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:38:36,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:38:36,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:38:36,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026129886] [2022-11-03 02:38:36,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:38:36,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:38:36,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:38:36,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:38:36,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=41, Unknown=2, NotChecked=0, Total=56 [2022-11-03 02:38:36,432 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:38:39,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:38:39,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:38:39,892 INFO L93 Difference]: Finished difference Result 94 states and 132 transitions. [2022-11-03 02:38:40,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:38:40,100 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-03 02:38:40,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:38:40,101 INFO L225 Difference]: With dead ends: 94 [2022-11-03 02:38:40,102 INFO L226 Difference]: Without dead ends: 90 [2022-11-03 02:38:40,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=23, Invalid=65, Unknown=2, NotChecked=0, Total=90 [2022-11-03 02:38:40,104 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 5 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:38:40,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 786 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 71 Unchecked, 2.8s Time] [2022-11-03 02:38:40,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-03 02:38:40,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-11-03 02:38:40,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.4457831325301205) internal successors, (120), 83 states have internal predecessors, (120), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:38:40,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 128 transitions. [2022-11-03 02:38:40,118 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 128 transitions. Word has length 13 [2022-11-03 02:38:40,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:38:40,118 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 128 transitions. [2022-11-03 02:38:40,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:38:40,119 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 128 transitions. [2022-11-03 02:38:40,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:38:40,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:38:40,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:38:40,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:38:40,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:38:40,334 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:38:40,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:38:40,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1590624253, now seen corresponding path program 1 times [2022-11-03 02:38:40,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:38:40,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398517751] [2022-11-03 02:38:40,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:38:40,336 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:38:40,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:38:40,337 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:38:40,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 02:38:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:38:40,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:38:40,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:38:45,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:38:45,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:38:45,023 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:38:45,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398517751] [2022-11-03 02:38:45,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398517751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:38:45,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:38:45,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:38:45,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423247062] [2022-11-03 02:38:45,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:38:45,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:38:45,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:38:45,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:38:45,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:38:45,026 INFO L87 Difference]: Start difference. First operand 90 states and 128 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:38:50,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:38:54,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:38:57,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:38:59,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:01,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:03,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:06,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:10,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:12,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:14,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:17,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:20,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:22,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:24,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:27,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:30,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:32,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:36,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:36,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:36,320 INFO L93 Difference]: Finished difference Result 98 states and 136 transitions. [2022-11-03 02:39:36,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:39:36,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-03 02:39:36,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:36,324 INFO L225 Difference]: With dead ends: 98 [2022-11-03 02:39:36,324 INFO L226 Difference]: Without dead ends: 93 [2022-11-03 02:39:36,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:39:36,326 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 107 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:39:36,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 367 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 13 Unknown, 0 Unchecked, 48.3s Time] [2022-11-03 02:39:36,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-03 02:39:36,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2022-11-03 02:39:36,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.4337349397590362) internal successors, (119), 83 states have internal predecessors, (119), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:39:36,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2022-11-03 02:39:36,344 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 18 [2022-11-03 02:39:36,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:36,344 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2022-11-03 02:39:36,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:36,345 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2022-11-03 02:39:36,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:39:36,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:36,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:39:36,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-11-03 02:39:36,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:39:36,562 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:39:36,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:36,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1588777211, now seen corresponding path program 1 times [2022-11-03 02:39:36,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:39:36,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513645879] [2022-11-03 02:39:36,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:36,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:39:36,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:39:36,565 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:39:36,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 02:39:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:39:36,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 02:39:36,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:39:41,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:39:41,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:39:41,161 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:39:41,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513645879] [2022-11-03 02:39:41,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513645879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:39:41,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:39:41,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:39:41,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998025695] [2022-11-03 02:39:41,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:39:41,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:39:41,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:39:41,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:39:41,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=6, Unknown=1, NotChecked=0, Total=12 [2022-11-03 02:39:41,164 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:43,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:43,359 INFO L93 Difference]: Finished difference Result 98 states and 133 transitions. [2022-11-03 02:39:43,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:39:43,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-03 02:39:43,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:43,363 INFO L225 Difference]: With dead ends: 98 [2022-11-03 02:39:43,365 INFO L226 Difference]: Without dead ends: 92 [2022-11-03 02:39:43,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=9, Invalid=10, Unknown=1, NotChecked=0, Total=20 [2022-11-03 02:39:43,371 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 63 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:39:43,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 283 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 11 Unchecked, 0.0s Time] [2022-11-03 02:39:43,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-03 02:39:43,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2022-11-03 02:39:43,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 81 states have internal predecessors, (116), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:39:43,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 124 transitions. [2022-11-03 02:39:43,396 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 124 transitions. Word has length 18 [2022-11-03 02:39:43,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:43,396 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 124 transitions. [2022-11-03 02:39:43,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:43,397 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 124 transitions. [2022-11-03 02:39:43,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:39:43,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:43,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:39:43,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:39:43,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:39:43,618 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:39:43,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:43,619 INFO L85 PathProgramCache]: Analyzing trace with hash -809284995, now seen corresponding path program 1 times [2022-11-03 02:39:43,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:39:43,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368069559] [2022-11-03 02:39:43,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:43,620 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:39:43,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:39:43,621 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:39:43,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 02:39:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:39:43,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 02:39:43,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:39:45,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:39:45,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:39:45,747 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:39:45,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368069559] [2022-11-03 02:39:45,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368069559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:39:45,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:39:45,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:39:45,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234983473] [2022-11-03 02:39:45,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:39:45,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:39:45,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:39:45,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:39:45,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:39:45,749 INFO L87 Difference]: Start difference. First operand 88 states and 124 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:49,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:49,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:49,743 INFO L93 Difference]: Finished difference Result 177 states and 252 transitions. [2022-11-03 02:39:49,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:39:49,943 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-03 02:39:49,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:49,944 INFO L225 Difference]: With dead ends: 177 [2022-11-03 02:39:49,944 INFO L226 Difference]: Without dead ends: 104 [2022-11-03 02:39:49,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:39:49,946 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 23 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:39:49,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 668 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 1 Unknown, 29 Unchecked, 3.5s Time] [2022-11-03 02:39:49,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-03 02:39:49,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 88. [2022-11-03 02:39:49,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4197530864197532) internal successors, (115), 81 states have internal predecessors, (115), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:39:49,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 123 transitions. [2022-11-03 02:39:49,957 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 123 transitions. Word has length 18 [2022-11-03 02:39:49,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:49,957 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 123 transitions. [2022-11-03 02:39:49,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:49,957 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 123 transitions. [2022-11-03 02:39:49,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:39:49,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:49,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:39:49,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:39:50,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:39:50,180 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:39:50,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:50,181 INFO L85 PathProgramCache]: Analyzing trace with hash -752026693, now seen corresponding path program 1 times [2022-11-03 02:39:50,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:39:50,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641636818] [2022-11-03 02:39:50,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:50,181 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:39:50,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:39:50,183 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:39:50,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 02:39:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:39:50,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 02:39:50,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:39:53,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:39:53,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:39:53,281 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:39:53,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641636818] [2022-11-03 02:39:53,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641636818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:39:53,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:39:53,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:39:53,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241560763] [2022-11-03 02:39:53,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:39:53,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:39:53,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:39:53,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:39:53,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:39:53,285 INFO L87 Difference]: Start difference. First operand 88 states and 123 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:57,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:39:57,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:57,259 INFO L93 Difference]: Finished difference Result 108 states and 149 transitions. [2022-11-03 02:39:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:39:57,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-03 02:39:57,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:57,451 INFO L225 Difference]: With dead ends: 108 [2022-11-03 02:39:57,451 INFO L226 Difference]: Without dead ends: 104 [2022-11-03 02:39:57,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:39:57,452 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 22 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:39:57,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 659 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 1 Unknown, 28 Unchecked, 3.5s Time] [2022-11-03 02:39:57,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-03 02:39:57,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 88. [2022-11-03 02:39:57,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 81 states have internal predecessors, (114), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:39:57,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 122 transitions. [2022-11-03 02:39:57,467 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 122 transitions. Word has length 18 [2022-11-03 02:39:57,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:57,468 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 122 transitions. [2022-11-03 02:39:57,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:57,468 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 122 transitions. [2022-11-03 02:39:57,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 02:39:57,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:57,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:39:57,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:39:57,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:39:57,682 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:39:57,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:57,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1689344753, now seen corresponding path program 1 times [2022-11-03 02:39:57,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:39:57,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342470813] [2022-11-03 02:39:57,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:57,683 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:39:57,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:39:57,685 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:39:57,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 02:39:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:39:57,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-03 02:39:57,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:39:59,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:39:59,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:39:59,556 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:39:59,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342470813] [2022-11-03 02:39:59,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342470813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:39:59,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:39:59,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:39:59,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515322729] [2022-11-03 02:39:59,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:39:59,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:39:59,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:39:59,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:39:59,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:39:59,558 INFO L87 Difference]: Start difference. First operand 88 states and 122 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:40:02,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:02,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:02,657 INFO L93 Difference]: Finished difference Result 147 states and 199 transitions. [2022-11-03 02:40:02,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:40:02,848 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-03 02:40:02,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:02,849 INFO L225 Difference]: With dead ends: 147 [2022-11-03 02:40:02,849 INFO L226 Difference]: Without dead ends: 81 [2022-11-03 02:40:02,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:40:02,850 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 19 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:02,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 448 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 12 Unchecked, 2.7s Time] [2022-11-03 02:40:02,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-03 02:40:02,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 77. [2022-11-03 02:40:02,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 70 states have internal predecessors, (93), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:40:02,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 101 transitions. [2022-11-03 02:40:02,870 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 101 transitions. Word has length 19 [2022-11-03 02:40:02,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:02,870 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 101 transitions. [2022-11-03 02:40:02,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:40:02,871 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2022-11-03 02:40:02,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 02:40:02,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:02,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:40:02,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-03 02:40:03,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:40:03,077 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:40:03,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:03,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1840764148, now seen corresponding path program 1 times [2022-11-03 02:40:03,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:40:03,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425149464] [2022-11-03 02:40:03,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:03,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:40:03,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:40:03,079 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:40:03,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 02:40:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:03,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 02:40:03,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:40:06,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:40:06,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:40:06,698 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:40:06,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425149464] [2022-11-03 02:40:06,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425149464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:06,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:06,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:40:06,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024587865] [2022-11-03 02:40:06,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:06,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:40:06,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:40:06,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:40:06,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=12, Unknown=1, NotChecked=0, Total=20 [2022-11-03 02:40:06,700 INFO L87 Difference]: Start difference. First operand 77 states and 101 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:40:09,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:09,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:09,621 INFO L93 Difference]: Finished difference Result 138 states and 180 transitions. [2022-11-03 02:40:09,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:40:09,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-03 02:40:09,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:09,798 INFO L225 Difference]: With dead ends: 138 [2022-11-03 02:40:09,798 INFO L226 Difference]: Without dead ends: 75 [2022-11-03 02:40:09,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2022-11-03 02:40:09,799 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 7 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:09,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 336 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 18 Unchecked, 2.7s Time] [2022-11-03 02:40:09,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-03 02:40:09,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2022-11-03 02:40:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 64 states have (on average 1.3125) internal successors, (84), 64 states have internal predecessors, (84), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:40:09,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 92 transitions. [2022-11-03 02:40:09,809 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 92 transitions. Word has length 19 [2022-11-03 02:40:09,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:09,809 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 92 transitions. [2022-11-03 02:40:09,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:40:09,809 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 92 transitions. [2022-11-03 02:40:09,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 02:40:09,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:09,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:40:09,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 02:40:10,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:40:10,011 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:40:10,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:10,011 INFO L85 PathProgramCache]: Analyzing trace with hash 590719438, now seen corresponding path program 1 times [2022-11-03 02:40:10,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:40:10,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339620861] [2022-11-03 02:40:10,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:10,012 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:40:10,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:40:10,013 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:40:10,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 02:40:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:10,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 02:40:10,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:40:14,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:40:14,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:40:14,384 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:40:14,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339620861] [2022-11-03 02:40:14,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [339620861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:14,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:14,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:40:14,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492409550] [2022-11-03 02:40:14,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:14,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:40:14,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:40:14,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:40:14,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:40:14,388 INFO L87 Difference]: Start difference. First operand 71 states and 92 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:40:16,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:16,555 INFO L93 Difference]: Finished difference Result 80 states and 99 transitions. [2022-11-03 02:40:16,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:40:16,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-03 02:40:16,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:16,557 INFO L225 Difference]: With dead ends: 80 [2022-11-03 02:40:16,557 INFO L226 Difference]: Without dead ends: 75 [2022-11-03 02:40:16,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:40:16,558 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 28 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:16,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 227 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 6 Unchecked, 0.0s Time] [2022-11-03 02:40:16,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-03 02:40:16,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2022-11-03 02:40:16,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 64 states have (on average 1.296875) internal successors, (83), 64 states have internal predecessors, (83), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:40:16,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 91 transitions. [2022-11-03 02:40:16,567 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 91 transitions. Word has length 20 [2022-11-03 02:40:16,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:16,568 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 91 transitions. [2022-11-03 02:40:16,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:40:16,568 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 91 transitions. [2022-11-03 02:40:16,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 02:40:16,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:16,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:40:16,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 02:40:16,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:40:16,782 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:40:16,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:16,783 INFO L85 PathProgramCache]: Analyzing trace with hash 592566480, now seen corresponding path program 1 times [2022-11-03 02:40:16,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:40:16,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052963047] [2022-11-03 02:40:16,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:16,791 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:40:16,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:40:16,792 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:40:16,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 02:40:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:17,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:40:17,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:40:21,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:40:21,932 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:40:21,932 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:40:21,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052963047] [2022-11-03 02:40:21,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052963047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:21,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:21,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:40:21,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482199578] [2022-11-03 02:40:21,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:21,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:40:21,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:40:21,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:40:21,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:40:21,934 INFO L87 Difference]: Start difference. First operand 71 states and 91 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:40:24,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:29,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:31,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:33,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:36,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:40,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:42,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:44,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:46,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:49,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:51,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:53,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:56,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:59,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:02,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:05,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:05,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:05,324 INFO L93 Difference]: Finished difference Result 78 states and 98 transitions. [2022-11-03 02:41:05,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:41:05,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-03 02:41:05,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:05,326 INFO L225 Difference]: With dead ends: 78 [2022-11-03 02:41:05,326 INFO L226 Difference]: Without dead ends: 72 [2022-11-03 02:41:05,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:41:05,327 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 67 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:05,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 267 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 13 Unknown, 0 Unchecked, 40.1s Time] [2022-11-03 02:41:05,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-03 02:41:05,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2022-11-03 02:41:05,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 62 states have (on average 1.2903225806451613) internal successors, (80), 62 states have internal predecessors, (80), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:41:05,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2022-11-03 02:41:05,336 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 20 [2022-11-03 02:41:05,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:05,336 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2022-11-03 02:41:05,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:41:05,336 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2022-11-03 02:41:05,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:41:05,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:05,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:41:05,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 02:41:05,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:41:05,538 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:41:05,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:05,538 INFO L85 PathProgramCache]: Analyzing trace with hash 802050970, now seen corresponding path program 1 times [2022-11-03 02:41:05,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:41:05,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96311176] [2022-11-03 02:41:05,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:05,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:41:05,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:41:05,540 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:41:05,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-03 02:41:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:05,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 02:41:05,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:41:08,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:41:08,204 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:41:08,204 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:41:08,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96311176] [2022-11-03 02:41:08,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [96311176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:08,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:08,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:41:08,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13076196] [2022-11-03 02:41:08,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:08,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:41:08,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:41:08,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:41:08,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:41:08,206 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:41:11,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:12,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:12,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:12,224 INFO L93 Difference]: Finished difference Result 73 states and 91 transitions. [2022-11-03 02:41:12,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:41:12,225 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-03 02:41:12,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:12,226 INFO L225 Difference]: With dead ends: 73 [2022-11-03 02:41:12,226 INFO L226 Difference]: Without dead ends: 69 [2022-11-03 02:41:12,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:41:12,227 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 9 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:12,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 450 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 1 Unknown, 13 Unchecked, 3.5s Time] [2022-11-03 02:41:12,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-03 02:41:12,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-03 02:41:12,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 62 states have (on average 1.2741935483870968) internal successors, (79), 62 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:41:12,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 87 transitions. [2022-11-03 02:41:12,236 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 87 transitions. Word has length 21 [2022-11-03 02:41:12,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:12,237 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 87 transitions. [2022-11-03 02:41:12,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:41:12,237 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2022-11-03 02:41:12,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-03 02:41:12,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:12,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:41:12,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-03 02:41:12,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:41:12,463 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:41:12,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:12,463 INFO L85 PathProgramCache]: Analyzing trace with hash 2015754869, now seen corresponding path program 1 times [2022-11-03 02:41:12,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:41:12,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148966941] [2022-11-03 02:41:12,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:12,464 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:41:12,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:41:12,464 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:41:12,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 02:41:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:13,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 02:41:13,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:41:15,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:41:15,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:41:15,107 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:41:15,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148966941] [2022-11-03 02:41:15,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148966941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:15,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:15,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:41:15,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719230471] [2022-11-03 02:41:15,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:15,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:41:15,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:41:15,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:41:15,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:41:15,110 INFO L87 Difference]: Start difference. First operand 69 states and 87 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:41:15,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:15,625 INFO L93 Difference]: Finished difference Result 105 states and 132 transitions. [2022-11-03 02:41:15,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:41:15,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-03 02:41:15,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:15,627 INFO L225 Difference]: With dead ends: 105 [2022-11-03 02:41:15,627 INFO L226 Difference]: Without dead ends: 49 [2022-11-03 02:41:15,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:41:15,628 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 5 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:15,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 267 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time] [2022-11-03 02:41:15,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-03 02:41:15,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-03 02:41:15,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.25) internal successors, (55), 44 states have internal predecessors, (55), 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) [2022-11-03 02:41:15,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2022-11-03 02:41:15,635 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 23 [2022-11-03 02:41:15,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:15,635 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2022-11-03 02:41:15,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:41:15,636 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2022-11-03 02:41:15,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 02:41:15,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:15,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:41:15,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-11-03 02:41:15,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:41:15,851 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:41:15,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:15,851 INFO L85 PathProgramCache]: Analyzing trace with hash 497810342, now seen corresponding path program 1 times [2022-11-03 02:41:15,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:41:15,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049462082] [2022-11-03 02:41:15,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:15,852 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:41:15,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:41:15,853 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:41:15,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-03 02:41:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:16,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 02:41:16,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:41:17,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:41:17,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:41:17,379 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:41:17,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049462082] [2022-11-03 02:41:17,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1049462082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:17,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:17,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:41:17,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642334819] [2022-11-03 02:41:17,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:17,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:41:17,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:41:17,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:41:17,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:41:17,382 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:41:17,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:17,851 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2022-11-03 02:41:17,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:41:17,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-03 02:41:17,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:17,853 INFO L225 Difference]: With dead ends: 49 [2022-11-03 02:41:17,853 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:41:17,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:41:17,855 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:17,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 20 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 2 Unchecked, 0.0s Time] [2022-11-03 02:41:17,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:41:17,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:41:17,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:41:17,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:41:17,857 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2022-11-03 02:41:17,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:17,857 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:41:17,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:41:17,857 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:41:17,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:41:17,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:41:17,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-03 02:41:18,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:41:18,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 02:41:32,577 WARN L234 SmtUtils]: Spent 13.21s on a formula simplification. DAG size of input: 117 DAG size of output: 17 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-03 02:41:32,648 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 31) no Hoare annotation was computed. [2022-11-03 02:41:32,648 INFO L902 garLoopResultBuilder]: At program point L26-1(lines 19 33) the Hoare annotation is: true [2022-11-03 02:41:32,649 INFO L899 garLoopResultBuilder]: For program point fabs_doubleEXIT(lines 19 33) no Hoare annotation was computed. [2022-11-03 02:41:32,649 INFO L899 garLoopResultBuilder]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2022-11-03 02:41:32,649 INFO L902 garLoopResultBuilder]: At program point fabs_doubleENTRY(lines 19 33) the Hoare annotation is: true [2022-11-03 02:41:32,649 INFO L899 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2022-11-03 02:41:32,649 INFO L902 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: true [2022-11-03 02:41:32,649 INFO L899 garLoopResultBuilder]: For program point fabs_doubleFINAL(lines 19 33) no Hoare annotation was computed. [2022-11-03 02:41:32,649 INFO L902 garLoopResultBuilder]: At program point L97(line 97) the Hoare annotation is: true [2022-11-03 02:41:32,649 INFO L899 garLoopResultBuilder]: For program point L97-1(line 97) no Hoare annotation was computed. [2022-11-03 02:41:32,649 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 88) no Hoare annotation was computed. [2022-11-03 02:41:32,649 INFO L899 garLoopResultBuilder]: For program point L98(lines 98 114) no Hoare annotation was computed. [2022-11-03 02:41:32,650 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 115) no Hoare annotation was computed. [2022-11-03 02:41:32,650 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2022-11-03 02:41:32,650 INFO L902 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: true [2022-11-03 02:41:32,650 INFO L899 garLoopResultBuilder]: For program point L78-3(lines 76 89) no Hoare annotation was computed. [2022-11-03 02:41:32,650 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 113) no Hoare annotation was computed. [2022-11-03 02:41:32,650 INFO L899 garLoopResultBuilder]: For program point L107-2(lines 90 115) no Hoare annotation was computed. [2022-11-03 02:41:32,650 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 70 74) no Hoare annotation was computed. [2022-11-03 02:41:32,650 INFO L902 garLoopResultBuilder]: At program point L70-2(lines 70 74) the Hoare annotation is: true [2022-11-03 02:41:32,651 INFO L899 garLoopResultBuilder]: For program point L132(line 132) no Hoare annotation was computed. [2022-11-03 02:41:32,651 INFO L899 garLoopResultBuilder]: For program point L70-3(lines 70 74) no Hoare annotation was computed. [2022-11-03 02:41:32,651 INFO L899 garLoopResultBuilder]: For program point L99(lines 99 105) no Hoare annotation was computed. [2022-11-03 02:41:32,651 INFO L899 garLoopResultBuilder]: For program point L132-2(line 132) no Hoare annotation was computed. [2022-11-03 02:41:32,651 INFO L899 garLoopResultBuilder]: For program point L128(lines 128 133) no Hoare annotation was computed. [2022-11-03 02:41:32,651 INFO L899 garLoopResultBuilder]: For program point L91(lines 91 94) no Hoare annotation was computed. [2022-11-03 02:41:32,651 INFO L899 garLoopResultBuilder]: For program point L91-2(lines 91 94) no Hoare annotation was computed. [2022-11-03 02:41:32,652 INFO L899 garLoopResultBuilder]: For program point atan_doubleEXIT(lines 66 134) no Hoare annotation was computed. [2022-11-03 02:41:32,652 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2022-11-03 02:41:32,652 INFO L902 garLoopResultBuilder]: At program point atan_doubleENTRY(lines 66 134) the Hoare annotation is: true [2022-11-03 02:41:32,652 INFO L899 garLoopResultBuilder]: For program point L76(lines 76 89) no Hoare annotation was computed. [2022-11-03 02:41:32,652 INFO L899 garLoopResultBuilder]: For program point atan_doubleFINAL(lines 66 134) no Hoare annotation was computed. [2022-11-03 02:41:32,652 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 220) no Hoare annotation was computed. [2022-11-03 02:41:32,652 INFO L899 garLoopResultBuilder]: For program point L217-2(lines 215 220) no Hoare annotation was computed. [2022-11-03 02:41:32,652 INFO L899 garLoopResultBuilder]: For program point L201(line 201) no Hoare annotation was computed. [2022-11-03 02:41:32,653 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-03 02:41:32,653 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 209) no Hoare annotation was computed. [2022-11-03 02:41:32,653 INFO L899 garLoopResultBuilder]: For program point L185-1(lines 144 244) no Hoare annotation was computed. [2022-11-03 02:41:32,653 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 208) no Hoare annotation was computed. [2022-11-03 02:41:32,653 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-11-03 02:41:32,653 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 180) no Hoare annotation was computed. [2022-11-03 02:41:32,654 INFO L899 garLoopResultBuilder]: For program point L170-2(lines 144 244) no Hoare annotation was computed. [2022-11-03 02:41:32,654 INFO L895 garLoopResultBuilder]: At program point L220(line 220) the Hoare annotation is: false [2022-11-03 02:41:32,654 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 196) no Hoare annotation was computed. [2022-11-03 02:41:32,654 INFO L895 garLoopResultBuilder]: At program point L220-1(line 220) the Hoare annotation is: false [2022-11-03 02:41:32,654 INFO L899 garLoopResultBuilder]: For program point L220-2(line 220) no Hoare annotation was computed. [2022-11-03 02:41:32,654 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 179) no Hoare annotation was computed. [2022-11-03 02:41:32,655 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 243) no Hoare annotation was computed. [2022-11-03 02:41:32,655 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-11-03 02:41:32,655 INFO L899 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2022-11-03 02:41:32,655 INFO L899 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2022-11-03 02:41:32,655 INFO L899 garLoopResultBuilder]: For program point L172-2(line 172) no Hoare annotation was computed. [2022-11-03 02:41:32,655 INFO L899 garLoopResultBuilder]: For program point L222(line 222) no Hoare annotation was computed. [2022-11-03 02:41:32,656 INFO L899 garLoopResultBuilder]: For program point L156-1(lines 156 161) no Hoare annotation was computed. [2022-11-03 02:41:32,656 INFO L895 garLoopResultBuilder]: At program point L156-2(lines 156 161) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) ~tiny_atan2~0) (exists ((|v_skolemized_q#valueAsBitvector_62| (_ BitVec 64))) (and (= |ULTIMATE.start___ieee754_atan2_~ix~1#1| (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_62|))) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_62|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_62|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_62|)) .cse0) (= ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_62|) |ULTIMATE.start___ieee754_atan2_~lx~0#1|))) (= ~pi_o_2~0 ((_ to_fp 11 53) currentRoundingMode (/ 785398163397448279.0 500000000000000000.0))) (fp.gt |ULTIMATE.start___ieee754_atan2_~y#1| (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (exists ((|v_skolemized_q#valueAsBitvector_23| (_ BitVec 64)) (|v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6|) (_ bv4 32)))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_23|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_23|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_23|)) .cse0) (= .cse1 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_23|)) (= |ULTIMATE.start___ieee754_atan2_~ix~1#1| (bvand (_ bv2147483647 32) .cse1))))) (exists ((|v_skolemized_q#valueAsBitvector_68| (_ BitVec 64))) (and (= |ULTIMATE.start___ieee754_atan2_~hx~1#1| ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_68|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_68|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_68|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_68|)) .cse0))))) [2022-11-03 02:41:32,657 INFO L899 garLoopResultBuilder]: For program point L156-3(lines 156 161) no Hoare annotation was computed. [2022-11-03 02:41:32,657 INFO L899 garLoopResultBuilder]: For program point L239(line 239) no Hoare annotation was computed. [2022-11-03 02:41:32,657 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-11-03 02:41:32,657 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 02:41:32,657 INFO L899 garLoopResultBuilder]: For program point L256(lines 256 265) no Hoare annotation was computed. [2022-11-03 02:41:32,657 INFO L899 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2022-11-03 02:41:32,657 INFO L899 garLoopResultBuilder]: For program point L256-2(lines 256 265) no Hoare annotation was computed. [2022-11-03 02:41:32,658 INFO L899 garLoopResultBuilder]: For program point L224(line 224) no Hoare annotation was computed. [2022-11-03 02:41:32,658 INFO L899 garLoopResultBuilder]: For program point L241(line 241) no Hoare annotation was computed. [2022-11-03 02:41:32,658 INFO L899 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2022-11-03 02:41:32,658 INFO L899 garLoopResultBuilder]: For program point L192(line 192) no Hoare annotation was computed. [2022-11-03 02:41:32,658 INFO L899 garLoopResultBuilder]: For program point L226-1(lines 226 230) no Hoare annotation was computed. [2022-11-03 02:41:32,658 INFO L895 garLoopResultBuilder]: At program point L226-2(lines 226 230) the Hoare annotation is: false [2022-11-03 02:41:32,659 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-03 02:41:32,659 INFO L899 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2022-11-03 02:41:32,659 INFO L895 garLoopResultBuilder]: At program point L144(lines 144 244) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) ~tiny_atan2~0) (= ~pi_o_2~0 ((_ to_fp 11 53) currentRoundingMode (/ 785398163397448279.0 500000000000000000.0))) (= |ULTIMATE.start___ieee754_atan2_#res#1| (fp.add roundNearestTiesToEven ~pi_o_2~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)))) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-03 02:41:32,659 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-11-03 02:41:32,659 INFO L899 garLoopResultBuilder]: For program point L261(lines 261 264) no Hoare annotation was computed. [2022-11-03 02:41:32,660 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-11-03 02:41:32,660 INFO L899 garLoopResultBuilder]: For program point L212-2(line 212) no Hoare annotation was computed. [2022-11-03 02:41:32,660 INFO L899 garLoopResultBuilder]: For program point L262(line 262) no Hoare annotation was computed. [2022-11-03 02:41:32,660 INFO L899 garLoopResultBuilder]: For program point L163(lines 163 165) no Hoare annotation was computed. [2022-11-03 02:41:32,660 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-03 02:41:32,660 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 262) no Hoare annotation was computed. [2022-11-03 02:41:32,661 INFO L899 garLoopResultBuilder]: For program point L231(lines 231 236) no Hoare annotation was computed. [2022-11-03 02:41:32,661 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 207) no Hoare annotation was computed. [2022-11-03 02:41:32,661 INFO L895 garLoopResultBuilder]: At program point L231-1(lines 224 237) the Hoare annotation is: false [2022-11-03 02:41:32,661 INFO L899 garLoopResultBuilder]: For program point L231-2(lines 231 236) no Hoare annotation was computed. [2022-11-03 02:41:32,661 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 220) no Hoare annotation was computed. [2022-11-03 02:41:32,661 INFO L899 garLoopResultBuilder]: For program point L149-1(lines 149 154) no Hoare annotation was computed. [2022-11-03 02:41:32,662 INFO L895 garLoopResultBuilder]: At program point L149-2(lines 149 154) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) ~tiny_atan2~0) (= ~pi_o_2~0 ((_ to_fp 11 53) currentRoundingMode (/ 785398163397448279.0 500000000000000000.0))) (= .cse0 |ULTIMATE.start_main_~x~0#1|) (fp.gt |ULTIMATE.start___ieee754_atan2_~y#1| (_ +zero 11 53)) (= |ULTIMATE.start___ieee754_atan2_~x#1| .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2022-11-03 02:41:32,662 INFO L899 garLoopResultBuilder]: For program point L149-3(lines 149 154) no Hoare annotation was computed. [2022-11-03 02:41:32,662 INFO L899 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2022-11-03 02:41:32,662 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 167) no Hoare annotation was computed. [2022-11-03 02:41:32,662 INFO L899 garLoopResultBuilder]: For program point L183(line 183) no Hoare annotation was computed. [2022-11-03 02:41:32,663 INFO L899 garLoopResultBuilder]: For program point L183-2(line 183) no Hoare annotation was computed. [2022-11-03 02:41:32,663 INFO L902 garLoopResultBuilder]: At program point L266(lines 246 267) the Hoare annotation is: true [2022-11-03 02:41:32,663 INFO L895 garLoopResultBuilder]: At program point L167(line 167) the Hoare annotation is: false [2022-11-03 02:41:32,663 INFO L899 garLoopResultBuilder]: For program point L167-1(line 167) no Hoare annotation was computed. [2022-11-03 02:41:32,667 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:41:32,669 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:41:32,677 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,684 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,695 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,695 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,696 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,696 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,696 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,696 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,696 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,697 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,697 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,697 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2022-11-03 02:41:32,697 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,697 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2022-11-03 02:41:32,698 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] [2022-11-03 02:41:32,698 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] [2022-11-03 02:41:32,698 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] [2022-11-03 02:41:32,698 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] [2022-11-03 02:41:32,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,702 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2022-11-03 02:41:32,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2022-11-03 02:41:32,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] [2022-11-03 02:41:32,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] [2022-11-03 02:41:32,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] [2022-11-03 02:41:32,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] [2022-11-03 02:41:32,709 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,709 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,709 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,710 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,714 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,714 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:41:32 BoogieIcfgContainer [2022-11-03 02:41:32,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:41:32,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:41:32,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:41:32,716 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:41:32,716 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:38:27" (3/4) ... [2022-11-03 02:41:32,720 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:41:32,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2022-11-03 02:41:32,731 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_double [2022-11-03 02:41:32,746 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-11-03 02:41:32,747 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-03 02:41:32,748 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-03 02:41:32,748 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:41:32,773 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 && (\exists v_skolemized_q#valueAsBitvector_62 : bv64 :: (ix == ~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_62[63:32]) && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_62[63:63], v_skolemized_q#valueAsBitvector_62[62:52], v_skolemized_q#valueAsBitvector_62[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && v_skolemized_q#valueAsBitvector_62[31:0] == lx)) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/500000000000000000)) && ~fp.gt~DOUBLE(y, ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_skolemized_q#valueAsBitvector_23 : bv64, v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6 : bv32 :: (~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_23[63:63], v_skolemized_q#valueAsBitvector_23[62:52], v_skolemized_q#valueAsBitvector_23[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6][4bv32] == v_skolemized_q#valueAsBitvector_23[63:32]) && ix == ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6][4bv32]))) && (\exists v_skolemized_q#valueAsBitvector_68 : bv64 :: hx == v_skolemized_q#valueAsBitvector_68[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_68[63:63], v_skolemized_q#valueAsBitvector_68[62:52], v_skolemized_q#valueAsBitvector_68[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) [2022-11-03 02:41:32,774 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/500000000000000000)) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, pi_o_2, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-11-03 02:41:32,818 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:41:32,818 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:41:32,818 INFO L158 Benchmark]: Toolchain (without parser) took 206882.67ms. Allocated memory is still 75.5MB. Free memory was 50.6MB in the beginning and 30.7MB in the end (delta: 19.9MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-11-03 02:41:32,819 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory is still 33.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:41:32,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.50ms. Allocated memory is still 75.5MB. Free memory was 50.4MB in the beginning and 54.0MB in the end (delta: -3.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 02:41:32,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.78ms. Allocated memory is still 75.5MB. Free memory was 54.0MB in the beginning and 51.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:41:32,820 INFO L158 Benchmark]: Boogie Preprocessor took 52.41ms. Allocated memory is still 75.5MB. Free memory was 51.5MB in the beginning and 48.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:41:32,820 INFO L158 Benchmark]: RCFGBuilder took 20815.90ms. Allocated memory is still 75.5MB. Free memory was 48.5MB in the beginning and 53.7MB in the end (delta: -5.3MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2022-11-03 02:41:32,820 INFO L158 Benchmark]: TraceAbstraction took 185348.63ms. Allocated memory is still 75.5MB. Free memory was 53.4MB in the beginning and 36.3MB in the end (delta: 17.0MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2022-11-03 02:41:32,821 INFO L158 Benchmark]: Witness Printer took 102.35ms. Allocated memory is still 75.5MB. Free memory was 36.3MB in the beginning and 30.7MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 02:41:32,822 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory is still 33.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 506.50ms. Allocated memory is still 75.5MB. Free memory was 50.4MB in the beginning and 54.0MB in the end (delta: -3.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.78ms. Allocated memory is still 75.5MB. Free memory was 54.0MB in the beginning and 51.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.41ms. Allocated memory is still 75.5MB. Free memory was 51.5MB in the beginning and 48.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 20815.90ms. Allocated memory is still 75.5MB. Free memory was 48.5MB in the beginning and 53.7MB in the end (delta: -5.3MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * TraceAbstraction took 185348.63ms. Allocated memory is still 75.5MB. Free memory was 53.4MB in the beginning and 36.3MB in the end (delta: 17.0MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * Witness Printer took 102.35ms. Allocated memory is still 75.5MB. Free memory was 36.3MB in the beginning and 30.7MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 262]: 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 3 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 185.2s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 122.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 14.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 mSolverCounterUnknown, 378 SdHoareTripleChecker+Valid, 107.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 360 mSDsluCounter, 4912 SdHoareTripleChecker+Invalid, 102.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 197 IncrementalHoareTripleChecker+Unchecked, 3712 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 250 IncrementalHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 1200 mSDtfsCounter, 250 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 254 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 36.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=0, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 54 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 70 PreInvPairs, 75 NumberOfFragments, 144 HoareAnnotationTreeSize, 70 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 2281 FormulaSimplificationTreeSizeReductionInter, 14.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 4.2s SatisfiabilityAnalysisTime, 39.8s InterpolantComputationTime, 244 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 231 ConstructedInterpolants, 84 QuantifiedInterpolants, 2298 SizeOfPredicates, 80 NumberOfNonLiveVariables, 1866 ConjunctsInSsa, 131 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 149]: Loop Invariant [2022-11-03 02:41:32,833 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,834 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/500000000000000000)) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && ~fp.gt~DOUBLE(y, ~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 246]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 224]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 156]: Loop Invariant [2022-11-03 02:41:32,835 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,835 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,835 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,835 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,836 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,836 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,836 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,836 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,836 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,836 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2022-11-03 02:41:32,837 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,837 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2022-11-03 02:41:32,837 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] [2022-11-03 02:41:32,837 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] [2022-11-03 02:41:32,837 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] [2022-11-03 02:41:32,837 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] [2022-11-03 02:41:32,838 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,838 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,838 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,839 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,839 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2022-11-03 02:41:32,839 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,839 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,839 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,839 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2022-11-03 02:41:32,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2022-11-03 02:41:32,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2022-11-03 02:41:32,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] [2022-11-03 02:41:32,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] [2022-11-03 02:41:32,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] [2022-11-03 02:41:32,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_68,QUANTIFIED] Derived loop invariant: (((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 && (\exists v_skolemized_q#valueAsBitvector_62 : bv64 :: (ix == ~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_62[63:32]) && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_62[63:63], v_skolemized_q#valueAsBitvector_62[62:52], v_skolemized_q#valueAsBitvector_62[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && v_skolemized_q#valueAsBitvector_62[31:0] == lx)) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/500000000000000000)) && ~fp.gt~DOUBLE(y, ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_skolemized_q#valueAsBitvector_23 : bv64, v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6 : bv32 :: (~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_23[63:63], v_skolemized_q#valueAsBitvector_23[62:52], v_skolemized_q#valueAsBitvector_23[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6][4bv32] == v_skolemized_q#valueAsBitvector_23[63:32]) && ix == ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6][4bv32]))) && (\exists v_skolemized_q#valueAsBitvector_68 : bv64 :: hx == v_skolemized_q#valueAsBitvector_68[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_68[63:63], v_skolemized_q#valueAsBitvector_68[62:52], v_skolemized_q#valueAsBitvector_68[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 144]: Loop Invariant [2022-11-03 02:41:32,842 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,842 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,842 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,842 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,842 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 02:41:32,843 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/500000000000000000)) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, pi_o_2, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-03 02:41:33,068 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-03 02:41:33,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac89dc8-53a7-455a-8ece-8fe1154a25e3/bin/utaipan-7li7fVZpFI/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