./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur --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 59d0560b101a1a446649456c356a26c615f3850e7b7d16baa2e50b6bf6dee850 --- 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-38b53e6 [2022-11-25 23:22:40,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:22:40,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:22:40,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:22:40,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:22:40,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:22:40,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:22:40,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:22:40,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:22:40,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:22:40,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:22:40,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:22:40,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:22:40,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:22:40,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:22:40,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:22:40,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:22:40,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:22:40,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:22:40,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:22:40,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:22:40,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:22:40,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:22:40,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:22:40,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:22:40,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:22:40,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:22:40,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:22:40,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:22:40,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:22:40,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:22:40,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:22:40,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:22:40,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:22:40,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:22:40,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:22:40,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:22:40,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:22:40,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:22:40,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:22:40,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:22:40,499 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 23:22:40,541 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:22:40,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:22:40,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:22:40,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:22:40,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:22:40,544 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:22:40,544 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:22:40,545 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:22:40,545 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:22:40,545 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:22:40,546 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:22:40,547 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:22:40,547 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:22:40,547 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:22:40,548 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:22:40,548 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:22:40,548 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:22:40,548 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:22:40,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:22:40,550 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:22:40,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:22:40,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:22:40,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:22:40,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:22:40,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:22:40,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:22:40,552 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:22:40,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:22:40,553 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:22:40,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:22:40,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:22:40,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:22:40,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:22:40,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:22:40,554 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:22:40,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:22:40,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:22:40,555 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:22:40,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:22:40,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:22:40,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:22:40,557 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_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d0560b101a1a446649456c356a26c615f3850e7b7d16baa2e50b6bf6dee850 [2022-11-25 23:22:40,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:22:40,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:22:40,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:22:40,853 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:22:40,853 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:22:40,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2022-11-25 23:22:43,862 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:22:44,063 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:22:44,063 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2022-11-25 23:22:44,071 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/data/6d5666cf6/73a3e832ee0e4e01a7a75ad7cda835d2/FLAG1edf7c93c [2022-11-25 23:22:44,087 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/data/6d5666cf6/73a3e832ee0e4e01a7a75ad7cda835d2 [2022-11-25 23:22:44,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:22:44,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:22:44,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:22:44,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:22:44,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:22:44,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:22:44" (1/1) ... [2022-11-25 23:22:44,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6253a089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:44, skipping insertion in model container [2022-11-25 23:22:44,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:22:44" (1/1) ... [2022-11-25 23:22:44,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:22:44,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:22:44,391 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c[6891,6904] [2022-11-25 23:22:44,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:22:44,411 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:22:44,462 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c[6891,6904] [2022-11-25 23:22:44,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:22:44,496 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:22:44,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:44 WrapperNode [2022-11-25 23:22:44,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:22:44,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:22:44,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:22:44,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:22:44,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:44" (1/1) ... [2022-11-25 23:22:44,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:44" (1/1) ... [2022-11-25 23:22:44,584 INFO L138 Inliner]: procedures = 21, calls = 98, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 269 [2022-11-25 23:22:44,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:22:44,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:22:44,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:22:44,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:22:44,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:44" (1/1) ... [2022-11-25 23:22:44,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:44" (1/1) ... [2022-11-25 23:22:44,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:44" (1/1) ... [2022-11-25 23:22:44,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:44" (1/1) ... [2022-11-25 23:22:44,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:44" (1/1) ... [2022-11-25 23:22:44,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:44" (1/1) ... [2022-11-25 23:22:44,645 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:44" (1/1) ... [2022-11-25 23:22:44,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:44" (1/1) ... [2022-11-25 23:22:44,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:22:44,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:22:44,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:22:44,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:22:44,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:44" (1/1) ... [2022-11-25 23:22:44,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:22:44,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:22:44,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:22:44,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:22:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:22:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:22:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:22:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-25 23:22:44,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:22:44,776 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-11-25 23:22:44,776 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-11-25 23:22:44,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-25 23:22:44,776 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-11-25 23:22:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-11-25 23:22:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:22:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:22:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:22:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-25 23:22:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:22:44,925 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:22:44,927 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:22:45,557 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:22:45,659 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:22:45,660 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2022-11-25 23:22:45,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:22:45 BoogieIcfgContainer [2022-11-25 23:22:45,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:22:45,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:22:45,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:22:45,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:22:45,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:22:44" (1/3) ... [2022-11-25 23:22:45,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2001c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:22:45, skipping insertion in model container [2022-11-25 23:22:45,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:44" (2/3) ... [2022-11-25 23:22:45,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2001c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:22:45, skipping insertion in model container [2022-11-25 23:22:45,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:22:45" (3/3) ... [2022-11-25 23:22:45,672 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684b.c [2022-11-25 23:22:45,692 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:22:45,692 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:22:45,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:22:45,760 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;@7d315d07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:22:45,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:22:45,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 71 states have (on average 1.704225352112676) internal successors, (121), 72 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) [2022-11-25 23:22:45,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:22:45,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:45,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:22:45,773 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:22:45,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:45,779 INFO L85 PathProgramCache]: Analyzing trace with hash 2131221630, now seen corresponding path program 1 times [2022-11-25 23:22:45,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:45,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604830448] [2022-11-25 23:22:45,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:45,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:46,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:46,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:46,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604830448] [2022-11-25 23:22:46,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604830448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:46,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:46,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:22:46,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241011035] [2022-11-25 23:22:46,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:46,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:22:46,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:46,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:22:46,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:22:46,090 INFO L87 Difference]: Start difference. First operand has 79 states, 71 states have (on average 1.704225352112676) internal successors, (121), 72 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) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2022-11-25 23:22:46,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:46,194 INFO L93 Difference]: Finished difference Result 157 states and 261 transitions. [2022-11-25 23:22:46,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:22:46,201 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 [2022-11-25 23:22:46,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:46,215 INFO L225 Difference]: With dead ends: 157 [2022-11-25 23:22:46,215 INFO L226 Difference]: Without dead ends: 76 [2022-11-25 23:22:46,220 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 [2022-11-25 23:22:46,227 INFO L413 NwaCegarLoop]: 95 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, 95 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:46,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:22:46,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-25 23:22:46,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-11-25 23:22:46,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 69 states have (on average 1.391304347826087) internal successors, (96), 69 states have internal predecessors, (96), 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) [2022-11-25 23:22:46,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 104 transitions. [2022-11-25 23:22:46,289 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 104 transitions. Word has length 13 [2022-11-25 23:22:46,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:46,289 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 104 transitions. [2022-11-25 23:22:46,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2022-11-25 23:22:46,290 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 104 transitions. [2022-11-25 23:22:46,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 23:22:46,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:46,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:22:46,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:22:46,291 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:22:46,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:46,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1276287829, now seen corresponding path program 1 times [2022-11-25 23:22:46,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:46,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93073472] [2022-11-25 23:22:46,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:46,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:46,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:46,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:46,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93073472] [2022-11-25 23:22:46,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93073472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:46,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:46,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:22:46,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848075104] [2022-11-25 23:22:46,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:46,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:22:46,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:46,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:22:46,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:22:46,538 INFO L87 Difference]: Start difference. First operand 76 states and 104 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:46,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:46,605 INFO L93 Difference]: Finished difference Result 144 states and 199 transitions. [2022-11-25 23:22:46,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:22:46,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-25 23:22:46,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:46,606 INFO L225 Difference]: With dead ends: 144 [2022-11-25 23:22:46,607 INFO L226 Difference]: Without dead ends: 76 [2022-11-25 23:22:46,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:22:46,609 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:46,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:22:46,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-25 23:22:46,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-11-25 23:22:46,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 69 states have internal predecessors, (95), 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) [2022-11-25 23:22:46,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 103 transitions. [2022-11-25 23:22:46,618 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 103 transitions. Word has length 16 [2022-11-25 23:22:46,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:46,618 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 103 transitions. [2022-11-25 23:22:46,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:46,619 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 103 transitions. [2022-11-25 23:22:46,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 23:22:46,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:46,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:22:46,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:22:46,620 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:22:46,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:46,621 INFO L85 PathProgramCache]: Analyzing trace with hash -487561092, now seen corresponding path program 1 times [2022-11-25 23:22:46,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:46,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160221766] [2022-11-25 23:22:46,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:46,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:22:47,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:22:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:22:47,475 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:22:47,476 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:22:47,477 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 23:22:47,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:22:47,483 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 23:22:47,486 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:22:47,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:22:47 BoogieIcfgContainer [2022-11-25 23:22:47,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:22:47,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:22:47,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:22:47,569 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:22:47,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:22:45" (3/4) ... [2022-11-25 23:22:47,574 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:22:47,574 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:22:47,575 INFO L158 Benchmark]: Toolchain (without parser) took 3483.85ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 85.7MB in the beginning and 96.2MB in the end (delta: -10.6MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2022-11-25 23:22:47,576 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:22:47,577 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.95ms. Allocated memory is still 127.9MB. Free memory was 85.4MB in the beginning and 70.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 23:22:47,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.45ms. Allocated memory is still 127.9MB. Free memory was 70.7MB in the beginning and 67.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:22:47,588 INFO L158 Benchmark]: Boogie Preprocessor took 65.11ms. Allocated memory is still 127.9MB. Free memory was 67.3MB in the beginning and 64.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:22:47,589 INFO L158 Benchmark]: RCFGBuilder took 1009.51ms. Allocated memory is still 127.9MB. Free memory was 64.0MB in the beginning and 73.7MB in the end (delta: -9.7MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2022-11-25 23:22:47,590 INFO L158 Benchmark]: TraceAbstraction took 1902.27ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 73.1MB in the beginning and 97.3MB in the end (delta: -24.2MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2022-11-25 23:22:47,590 INFO L158 Benchmark]: Witness Printer took 5.48ms. Allocated memory is still 163.6MB. Free memory was 97.3MB in the beginning and 96.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:22:47,595 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.95ms. Allocated memory is still 127.9MB. Free memory was 85.4MB in the beginning and 70.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.45ms. Allocated memory is still 127.9MB. Free memory was 70.7MB in the beginning and 67.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.11ms. Allocated memory is still 127.9MB. Free memory was 67.3MB in the beginning and 64.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1009.51ms. Allocated memory is still 127.9MB. Free memory was 64.0MB in the beginning and 73.7MB in the end (delta: -9.7MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1902.27ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 73.1MB in the beginning and 97.3MB in the end (delta: -24.2MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. * Witness Printer took 5.48ms. Allocated memory is still 163.6MB. Free memory was 97.3MB in the beginning and 96.2MB in the end (delta: 1.0MB). 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: 288]: 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 someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 287. 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; [L278] double x = __VERIFIER_nondet_double(); [L279] double y = -1.0 / 0.0; [L282] CALL, EXPR isfinite_double(x) [L262] __int32_t hx; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, zero_atan2=0] [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L282] RET, EXPR isfinite_double(x) [L282] isfinite_double(x) && isinf_double(y) [L282] CALL, EXPR isinf_double(y) [L248] __int32_t hx, lx; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L282] RET, EXPR isinf_double(y) [L282] isfinite_double(x) && isinf_double(y) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isfinite_double(x)=-1, isfinite_double(x) && isinf_double(y)=1, isinf_double(y)=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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L282] COND TRUE isfinite_double(x) && isinf_double(y) [L284] 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)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, 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)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-3, ix=2146435073, lx=4609434220761186304, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, 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)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-3, hy=0, ix=2146435073, iy=0, lx=4609434220761186304, ly=0, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-3, hy=0, ix=2146435073, iy=0, lx=4609434220761186304, ly=0, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L284] RET, EXPR __ieee754_atan2(y, x) [L284] double res = __ieee754_atan2(y, x); [L287] 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L288] 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 276 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 89 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 187 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:22:47,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/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_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur --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 59d0560b101a1a446649456c356a26c615f3850e7b7d16baa2e50b6bf6dee850 --- 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-38b53e6 [2022-11-25 23:22:50,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:22:50,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:22:50,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:22:50,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:22:50,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:22:50,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:22:50,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:22:50,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:22:50,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:22:50,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:22:50,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:22:50,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:22:50,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:22:50,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:22:50,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:22:50,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:22:50,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:22:50,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:22:50,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:22:50,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:22:50,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:22:50,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:22:50,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:22:50,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:22:50,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:22:50,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:22:50,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:22:50,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:22:50,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:22:50,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:22:50,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:22:50,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:22:50,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:22:50,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:22:50,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:22:50,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:22:50,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:22:50,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:22:50,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:22:50,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:22:50,200 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-25 23:22:50,242 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:22:50,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:22:50,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:22:50,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:22:50,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:22:50,245 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:22:50,246 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:22:50,246 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:22:50,246 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:22:50,246 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:22:50,248 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:22:50,248 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:22:50,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:22:50,249 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:22:50,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:22:50,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:22:50,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:22:50,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:22:50,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:22:50,250 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:22:50,251 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:22:50,251 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:22:50,251 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:22:50,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:22:50,252 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:22:50,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:22:50,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:22:50,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:22:50,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:22:50,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:22:50,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:22:50,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:22:50,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:22:50,254 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:22:50,254 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:22:50,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:22:50,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:22:50,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:22:50,255 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_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d0560b101a1a446649456c356a26c615f3850e7b7d16baa2e50b6bf6dee850 [2022-11-25 23:22:50,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:22:50,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:22:50,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:22:50,672 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:22:50,674 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:22:50,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2022-11-25 23:22:53,678 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:22:53,944 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:22:53,944 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2022-11-25 23:22:53,952 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/data/001124b0f/bb4e8cd0deef493e9b982db2190e9515/FLAG01b6db97b [2022-11-25 23:22:53,975 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/data/001124b0f/bb4e8cd0deef493e9b982db2190e9515 [2022-11-25 23:22:53,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:22:53,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:22:53,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:22:53,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:22:53,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:22:53,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:22:53" (1/1) ... [2022-11-25 23:22:53,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@320e00ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:53, skipping insertion in model container [2022-11-25 23:22:53,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:22:53" (1/1) ... [2022-11-25 23:22:54,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:22:54,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:22:54,356 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c[6891,6904] [2022-11-25 23:22:54,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:22:54,388 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:22:54,460 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c[6891,6904] [2022-11-25 23:22:54,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:22:54,486 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:22:54,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:54 WrapperNode [2022-11-25 23:22:54,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:22:54,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:22:54,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:22:54,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:22:54,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:54" (1/1) ... [2022-11-25 23:22:54,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:54" (1/1) ... [2022-11-25 23:22:54,568 INFO L138 Inliner]: procedures = 24, calls = 98, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 268 [2022-11-25 23:22:54,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:22:54,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:22:54,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:22:54,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:22:54,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:54" (1/1) ... [2022-11-25 23:22:54,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:54" (1/1) ... [2022-11-25 23:22:54,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:54" (1/1) ... [2022-11-25 23:22:54,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:54" (1/1) ... [2022-11-25 23:22:54,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:54" (1/1) ... [2022-11-25 23:22:54,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:54" (1/1) ... [2022-11-25 23:22:54,611 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:54" (1/1) ... [2022-11-25 23:22:54,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:54" (1/1) ... [2022-11-25 23:22:54,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:22:54,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:22:54,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:22:54,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:22:54,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:54" (1/1) ... [2022-11-25 23:22:54,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:22:54,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:22:54,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:22:54,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:22:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:22:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-25 23:22:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-25 23:22:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:22:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:22:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-11-25 23:22:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-11-25 23:22:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-11-25 23:22:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-11-25 23:22:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-11-25 23:22:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 23:22:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:22:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:22:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 23:22:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:22:54,831 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:22:54,834 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:23:21,052 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:23:21,062 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:23:21,062 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2022-11-25 23:23:21,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:23:21 BoogieIcfgContainer [2022-11-25 23:23:21,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:23:21,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:23:21,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:23:21,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:23:21,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:22:53" (1/3) ... [2022-11-25 23:23:21,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108f8906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:23:21, skipping insertion in model container [2022-11-25 23:23:21,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:54" (2/3) ... [2022-11-25 23:23:21,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108f8906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:23:21, skipping insertion in model container [2022-11-25 23:23:21,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:23:21" (3/3) ... [2022-11-25 23:23:21,076 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684b.c [2022-11-25 23:23:21,096 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:23:21,097 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:23:21,163 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:23:21,169 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;@7cccf572, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:23:21,170 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:23:21,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 89 states have (on average 1.6629213483146068) internal successors, (148), 90 states have internal predecessors, (148), 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) [2022-11-25 23:23:21,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 23:23:21,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:21,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:21,180 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:23:21,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:21,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1890267110, now seen corresponding path program 1 times [2022-11-25 23:23:21,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:23:21,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934150689] [2022-11-25 23:23:21,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:21,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:23:21,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:23:21,199 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:23:21,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 23:23:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:21,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 23:23:21,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:23:21,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:21,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:23:21,642 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:23:21,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934150689] [2022-11-25 23:23:21,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934150689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:21,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:21,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:23:21,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155960856] [2022-11-25 23:23:21,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:21,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:23:21,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:23:21,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:23:21,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:23:21,683 INFO L87 Difference]: Start difference. First operand has 97 states, 89 states have (on average 1.6629213483146068) internal successors, (148), 90 states have internal predecessors, (148), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:21,721 INFO L93 Difference]: Finished difference Result 192 states and 314 transitions. [2022-11-25 23:23:21,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:23:21,724 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-25 23:23:21,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:21,735 INFO L225 Difference]: With dead ends: 192 [2022-11-25 23:23:21,736 INFO L226 Difference]: Without dead ends: 93 [2022-11-25 23:23:21,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:23:21,745 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:21,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:23:21,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-25 23:23:21,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-11-25 23:23:21,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 86 states have (on average 1.4186046511627908) internal successors, (122), 86 states have internal predecessors, (122), 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) [2022-11-25 23:23:21,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 130 transitions. [2022-11-25 23:23:21,819 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 130 transitions. Word has length 15 [2022-11-25 23:23:21,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:21,820 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 130 transitions. [2022-11-25 23:23:21,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:21,821 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 130 transitions. [2022-11-25 23:23:21,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 23:23:21,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:21,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:21,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-25 23:23:22,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:23:22,039 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:23:22,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:22,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1206213533, now seen corresponding path program 1 times [2022-11-25 23:23:22,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:23:22,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119918100] [2022-11-25 23:23:22,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:22,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:23:22,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:23:22,064 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:23:22,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 23:23:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:22,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:23:22,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:23:22,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:22,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:23:22,635 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:23:22,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119918100] [2022-11-25 23:23:22,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2119918100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:22,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:22,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:23:22,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459204023] [2022-11-25 23:23:22,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:22,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:23:22,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:23:22,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:23:22,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:23:22,640 INFO L87 Difference]: Start difference. First operand 93 states and 130 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2022-11-25 23:23:22,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:22,876 INFO L93 Difference]: Finished difference Result 175 states and 248 transitions. [2022-11-25 23:23:22,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:23:22,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 [2022-11-25 23:23:22,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:22,879 INFO L225 Difference]: With dead ends: 175 [2022-11-25 23:23:22,879 INFO L226 Difference]: Without dead ends: 93 [2022-11-25 23:23:22,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:23:22,882 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:22,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 254 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:23:22,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-25 23:23:22,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-11-25 23:23:22,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 86 states have (on average 1.4069767441860466) internal successors, (121), 86 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) [2022-11-25 23:23:22,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 129 transitions. [2022-11-25 23:23:22,892 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 129 transitions. Word has length 18 [2022-11-25 23:23:22,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:22,892 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 129 transitions. [2022-11-25 23:23:22,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2022-11-25 23:23:22,893 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 129 transitions. [2022-11-25 23:23:22,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 23:23:22,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:22,894 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] [2022-11-25 23:23:22,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:23:23,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:23:23,115 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:23:23,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:23,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1202351854, now seen corresponding path program 1 times [2022-11-25 23:23:23,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:23:23,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409634628] [2022-11-25 23:23:23,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:23,117 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:23:23,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:23:23,119 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:23:23,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 23:23:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:23,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-25 23:23:23,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:23:28,518 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:23:30,845 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:23:35,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:35,503 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:23:35,503 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:23:35,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409634628] [2022-11-25 23:23:35,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1409634628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:35,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:35,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 23:23:35,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495613531] [2022-11-25 23:23:35,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:35,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:23:35,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:23:35,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:23:35,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:23:35,509 INFO L87 Difference]: Start difference. First operand 93 states and 129 transitions. Second operand has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:39,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:23:49,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:23:51,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:23:59,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:24:01,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:24:04,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:24:06,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:24:06,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:06,887 INFO L93 Difference]: Finished difference Result 130 states and 177 transitions. [2022-11-25 23:24:06,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 23:24:06,889 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-25 23:24:06,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:06,890 INFO L225 Difference]: With dead ends: 130 [2022-11-25 23:24:06,892 INFO L226 Difference]: Without dead ends: 60 [2022-11-25 23:24:06,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2022-11-25 23:24:06,895 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 146 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 10 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:06,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 490 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 114 Invalid, 7 Unknown, 0 Unchecked, 23.7s Time] [2022-11-25 23:24:06,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-25 23:24:06,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-25 23:24:06,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 55 states have (on average 1.2181818181818183) internal successors, (67), 55 states have internal predecessors, (67), 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) [2022-11-25 23:24:06,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2022-11-25 23:24:06,919 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 22 [2022-11-25 23:24:06,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:06,920 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2022-11-25 23:24:06,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:06,921 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2022-11-25 23:24:06,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 23:24:06,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:06,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:06,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:24:07,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:24:07,144 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:24:07,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:07,144 INFO L85 PathProgramCache]: Analyzing trace with hash 628413096, now seen corresponding path program 1 times [2022-11-25 23:24:07,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:24:07,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661621797] [2022-11-25 23:24:07,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:07,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:24:07,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:24:07,147 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:24:07,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 23:24:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:07,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-25 23:24:07,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:24:16,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:16,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:24:16,209 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:24:16,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661621797] [2022-11-25 23:24:16,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661621797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:16,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:16,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:24:16,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467707265] [2022-11-25 23:24:16,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:16,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:24:16,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:24:16,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:24:16,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:24:16,211 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:28,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:31,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:33,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:36,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:38,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:42,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:45,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:48,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:51,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:51,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:51,363 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2022-11-25 23:24:51,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:24:51,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-25 23:24:51,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:51,612 INFO L225 Difference]: With dead ends: 67 [2022-11-25 23:24:51,612 INFO L226 Difference]: Without dead ends: 59 [2022-11-25 23:24:51,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:24:51,614 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 79 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 8 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:51,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 236 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 87 Invalid, 9 Unknown, 0 Unchecked, 30.3s Time] [2022-11-25 23:24:51,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-25 23:24:51,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 56. [2022-11-25 23:24:51,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 51 states have (on average 1.196078431372549) internal successors, (61), 51 states have internal predecessors, (61), 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) [2022-11-25 23:24:51,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2022-11-25 23:24:51,627 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 25 [2022-11-25 23:24:51,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:51,628 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2022-11-25 23:24:51,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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) [2022-11-25 23:24:51,628 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2022-11-25 23:24:51,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-25 23:24:51,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:51,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:51,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-11-25 23:24:51,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:24:51,843 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:24:51,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:51,843 INFO L85 PathProgramCache]: Analyzing trace with hash 819116375, now seen corresponding path program 1 times [2022-11-25 23:24:51,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:24:51,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038023653] [2022-11-25 23:24:51,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:51,844 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:24:51,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:24:51,845 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:24:51,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 23:24:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:52,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 23:24:52,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:24:54,169 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:25:23,617 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:25:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:26,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:25:26,193 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:25:26,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038023653] [2022-11-25 23:25:26,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038023653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:26,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:26,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 23:25:26,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576691163] [2022-11-25 23:25:26,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:26,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 23:25:26,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:25:26,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 23:25:26,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:25:26,197 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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) [2022-11-25 23:25:32,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:25:35,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:25:42,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:25:45,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:48,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:52,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:54,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:25:57,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:25:59,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:26:02,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:04,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:26:07,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:09,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:26:09,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:09,703 INFO L93 Difference]: Finished difference Result 68 states and 76 transitions. [2022-11-25 23:26:09,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 23:26:09,946 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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 35 [2022-11-25 23:26:09,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:09,948 INFO L225 Difference]: With dead ends: 68 [2022-11-25 23:26:09,948 INFO L226 Difference]: Without dead ends: 61 [2022-11-25 23:26:09,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:26:09,949 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 60 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 7 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:09,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 223 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 113 Invalid, 12 Unknown, 0 Unchecked, 41.6s Time] [2022-11-25 23:26:09,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-25 23:26:09,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2022-11-25 23:26:09,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 51 states have internal predecessors, (60), 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) [2022-11-25 23:26:09,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2022-11-25 23:26:09,961 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 35 [2022-11-25 23:26:09,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:09,962 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2022-11-25 23:26:09,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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) [2022-11-25 23:26:09,962 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2022-11-25 23:26:09,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-25 23:26:09,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:09,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:09,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-25 23:26:10,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:26:10,186 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:26:10,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:10,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1620739502, now seen corresponding path program 1 times [2022-11-25 23:26:10,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:26:10,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017688777] [2022-11-25 23:26:10,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:10,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:26:10,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:26:10,188 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:26:10,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-25 23:26:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:10,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 23:26:10,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:26:14,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:14,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:26:14,337 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:26:14,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017688777] [2022-11-25 23:26:14,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017688777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:14,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:14,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 23:26:14,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583828527] [2022-11-25 23:26:14,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:14,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:26:14,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:26:14,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:26:14,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:14,340 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 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) [2022-11-25 23:26:23,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:26:26,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:29,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:26:31,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:26:35,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:26:39,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:26:42,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:26:45,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:26:45,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:45,545 INFO L93 Difference]: Finished difference Result 66 states and 73 transitions. [2022-11-25 23:26:45,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 23:26:45,796 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 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 35 [2022-11-25 23:26:45,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:45,797 INFO L225 Difference]: With dead ends: 66 [2022-11-25 23:26:45,797 INFO L226 Difference]: Without dead ends: 59 [2022-11-25 23:26:45,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:26:45,799 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 82 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 8 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:45,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 206 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 95 Invalid, 8 Unknown, 0 Unchecked, 29.1s Time] [2022-11-25 23:26:45,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-25 23:26:45,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 56. [2022-11-25 23:26:45,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 51 states have (on average 1.1568627450980393) internal successors, (59), 51 states have internal predecessors, (59), 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) [2022-11-25 23:26:45,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2022-11-25 23:26:45,811 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 35 [2022-11-25 23:26:45,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:45,812 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2022-11-25 23:26:45,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 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) [2022-11-25 23:26:45,812 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2022-11-25 23:26:45,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-25 23:26:45,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:45,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:45,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-25 23:26:46,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:26:46,022 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:26:46,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:46,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1044551605, now seen corresponding path program 1 times [2022-11-25 23:26:46,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:26:46,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013543931] [2022-11-25 23:26:46,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:46,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:26:46,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:26:46,026 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:26:46,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-25 23:26:46,397 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Exception during sending of exit command (exit): Broken pipe [2022-11-25 23:26:46,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 139 [2022-11-25 23:26:46,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:26:46,598 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-25 23:26:46,602 INFO L158 Benchmark]: Toolchain (without parser) took 232619.94ms. Allocated memory is still 75.5MB. Free memory was 53.4MB in the beginning and 41.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-11-25 23:26:46,602 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 60.8MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:26:46,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.90ms. Allocated memory is still 75.5MB. Free memory was 53.2MB in the beginning and 37.4MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 23:26:46,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.95ms. Allocated memory is still 75.5MB. Free memory was 37.2MB in the beginning and 54.5MB in the end (delta: -17.2MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-11-25 23:26:46,603 INFO L158 Benchmark]: Boogie Preprocessor took 48.95ms. Allocated memory is still 75.5MB. Free memory was 54.5MB in the beginning and 51.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:26:46,603 INFO L158 Benchmark]: RCFGBuilder took 26445.53ms. Allocated memory is still 75.5MB. Free memory was 51.0MB in the beginning and 36.9MB in the end (delta: 14.1MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2022-11-25 23:26:46,603 INFO L158 Benchmark]: TraceAbstraction took 205533.93ms. Allocated memory is still 75.5MB. Free memory was 36.1MB in the beginning and 41.7MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:26:46,605 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 60.8MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 501.90ms. Allocated memory is still 75.5MB. Free memory was 53.2MB in the beginning and 37.4MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.95ms. Allocated memory is still 75.5MB. Free memory was 37.2MB in the beginning and 54.5MB in the end (delta: -17.2MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.95ms. Allocated memory is still 75.5MB. Free memory was 54.5MB in the beginning and 51.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 26445.53ms. Allocated memory is still 75.5MB. Free memory was 51.0MB in the beginning and 36.9MB in the end (delta: 14.1MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * TraceAbstraction took 205533.93ms. Allocated memory is still 75.5MB. Free memory was 36.1MB in the beginning and 41.7MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-25 23:26:46,822 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-25 23:26:46,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/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: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d3b3b0-5d8a-475a-923d-6178dfb093de/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8) with exit command (exit)) Received EOF on stdin. No stderr output.