./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl --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 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:34:02,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:34:02,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:34:02,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:34:02,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:34:02,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:34:02,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:34:02,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:34:02,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:34:02,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:34:02,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:34:02,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:34:02,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:34:02,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:34:02,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:34:02,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:34:02,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:34:02,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:34:02,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:34:02,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:34:02,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:34:02,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:34:02,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:34:02,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:34:02,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:34:02,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:34:02,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:34:02,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:34:02,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:34:02,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:34:02,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:34:02,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:34:02,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:34:02,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:34:02,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:34:02,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:34:02,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:34:02,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:34:02,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:34:02,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:34:02,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:34:02,479 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:34:02,533 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:34:02,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:34:02,534 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:34:02,535 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:34:02,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:34:02,536 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:34:02,536 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:34:02,536 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:34:02,537 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:34:02,537 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:34:02,538 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:34:02,538 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:34:02,539 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:34:02,539 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:34:02,539 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:34:02,539 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:34:02,540 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:34:02,540 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:34:02,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:34:02,541 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:34:02,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:34:02,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:34:02,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:34:02,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:34:02,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:34:02,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:34:02,544 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:34:02,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:34:02,545 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:34:02,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:34:02,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:34:02,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:34:02,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:34:02,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:34:02,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:34:02,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:34:02,547 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:34:02,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:34:02,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:34:02,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:34:02,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:34:02,548 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 [2021-11-23 17:34:02,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:34:02,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:34:02,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:34:02,839 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:34:02,840 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:34:02,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-11-23 17:34:02,904 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/data/86b8cf7e6/bf0ed93c0ba34e8891f6db90888d50ba/FLAGd88a604b5 [2021-11-23 17:34:03,359 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:34:03,360 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-11-23 17:34:03,371 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/data/86b8cf7e6/bf0ed93c0ba34e8891f6db90888d50ba/FLAGd88a604b5 [2021-11-23 17:34:03,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/data/86b8cf7e6/bf0ed93c0ba34e8891f6db90888d50ba [2021-11-23 17:34:03,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:34:03,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:34:03,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:34:03,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:34:03,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:34:03,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:34:03" (1/1) ... [2021-11-23 17:34:03,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@774997f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:03, skipping insertion in model container [2021-11-23 17:34:03,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:34:03" (1/1) ... [2021-11-23 17:34:03,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:34:03,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:34:04,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-11-23 17:34:04,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:34:04,052 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:34:04,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-11-23 17:34:04,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:34:04,121 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:34:04,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:04 WrapperNode [2021-11-23 17:34:04,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:34:04,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:34:04,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:34:04,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:34:04,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:04" (1/1) ... [2021-11-23 17:34:04,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:04" (1/1) ... [2021-11-23 17:34:04,197 INFO L137 Inliner]: procedures = 19, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 145 [2021-11-23 17:34:04,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:34:04,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:34:04,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:34:04,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:34:04,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:04" (1/1) ... [2021-11-23 17:34:04,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:04" (1/1) ... [2021-11-23 17:34:04,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:04" (1/1) ... [2021-11-23 17:34:04,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:04" (1/1) ... [2021-11-23 17:34:04,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:04" (1/1) ... [2021-11-23 17:34:04,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:04" (1/1) ... [2021-11-23 17:34:04,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:04" (1/1) ... [2021-11-23 17:34:04,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:34:04,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:34:04,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:34:04,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:34:04,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:04" (1/1) ... [2021-11-23 17:34:04,283 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:34:04,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:34:04,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:34:04,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:34:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:34:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:34:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:34:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 17:34:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:34:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 17:34:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:34:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:34:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:34:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:34:04,434 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:34:04,436 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:34:04,681 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:34:04,698 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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) [2021-11-23 17:34:04,703 INFO L158 Benchmark]: Toolchain (without parser) took 966.99ms. Allocated memory is still 94.4MB. Free memory was 72.4MB in the beginning and 51.2MB in the end (delta: 21.2MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2021-11-23 17:34:04,704 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 77.6MB. Free memory was 55.7MB in the beginning and 55.7MB in the end (delta: 35.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:34:04,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.86ms. Allocated memory is still 94.4MB. Free memory was 72.2MB in the beginning and 67.5MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:34:04,706 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.42ms. Allocated memory is still 94.4MB. Free memory was 67.5MB in the beginning and 65.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:34:04,707 INFO L158 Benchmark]: Boogie Preprocessor took 74.81ms. Allocated memory is still 94.4MB. Free memory was 65.5MB in the beginning and 63.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:34:04,708 INFO L158 Benchmark]: RCFGBuilder took 427.20ms. Allocated memory is still 94.4MB. Free memory was 63.9MB in the beginning and 51.2MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:34:04,712 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 77.6MB. Free memory was 55.7MB in the beginning and 55.7MB in the end (delta: 35.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.86ms. Allocated memory is still 94.4MB. Free memory was 72.2MB in the beginning and 67.5MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.42ms. Allocated memory is still 94.4MB. Free memory was 67.5MB in the beginning and 65.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.81ms. Allocated memory is still 94.4MB. Free memory was 65.5MB in the beginning and 63.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 427.20ms. Allocated memory is still 94.4MB. Free memory was 63.9MB in the beginning and 51.2MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:34:04,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl --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 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:34:07,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:34:07,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:34:07,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:34:07,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:34:07,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:34:07,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:34:07,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:34:07,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:34:07,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:34:07,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:34:07,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:34:07,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:34:07,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:34:07,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:34:07,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:34:07,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:34:07,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:34:07,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:34:07,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:34:07,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:34:07,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:34:07,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:34:07,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:34:07,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:34:07,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:34:07,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:34:07,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:34:07,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:34:07,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:34:07,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:34:07,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:34:07,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:34:07,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:34:07,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:34:07,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:34:07,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:34:07,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:34:07,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:34:07,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:34:07,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:34:07,167 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:34:07,209 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:34:07,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:34:07,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:34:07,211 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:34:07,212 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:34:07,212 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:34:07,213 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:34:07,213 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:34:07,213 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:34:07,213 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:34:07,215 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:34:07,215 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:34:07,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:34:07,217 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:34:07,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:34:07,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:34:07,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:34:07,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:34:07,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:34:07,218 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:34:07,218 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:34:07,219 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:34:07,219 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:34:07,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:34:07,219 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:34:07,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:34:07,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:34:07,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:34:07,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:34:07,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:34:07,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:34:07,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:34:07,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:34:07,222 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:34:07,222 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:34:07,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:34:07,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:34:07,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:34:07,223 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_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e9506709080674bf2939bd14266694370597fe695fd6b2ee930207a676e93e8 [2021-11-23 17:34:07,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:34:07,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:34:07,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:34:07,645 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:34:07,646 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:34:07,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-11-23 17:34:07,716 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/data/d6f48a63d/82c0e1231296457d99b3672b58c6d17e/FLAGbada96133 [2021-11-23 17:34:08,172 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:34:08,173 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-11-23 17:34:08,180 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/data/d6f48a63d/82c0e1231296457d99b3672b58c6d17e/FLAGbada96133 [2021-11-23 17:34:08,557 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/data/d6f48a63d/82c0e1231296457d99b3672b58c6d17e [2021-11-23 17:34:08,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:34:08,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:34:08,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:34:08,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:34:08,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:34:08,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:34:08" (1/1) ... [2021-11-23 17:34:08,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3940bb56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:08, skipping insertion in model container [2021-11-23 17:34:08,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:34:08" (1/1) ... [2021-11-23 17:34:08,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:34:08,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:34:08,789 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-11-23 17:34:08,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:34:08,808 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:34:08,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-11-23 17:34:08,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:34:08,907 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:34:08,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:08 WrapperNode [2021-11-23 17:34:08,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:34:08,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:34:08,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:34:08,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:34:08,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:08" (1/1) ... [2021-11-23 17:34:08,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:08" (1/1) ... [2021-11-23 17:34:08,968 INFO L137 Inliner]: procedures = 22, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 145 [2021-11-23 17:34:08,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:34:08,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:34:08,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:34:08,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:34:08,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:08" (1/1) ... [2021-11-23 17:34:08,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:08" (1/1) ... [2021-11-23 17:34:09,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:08" (1/1) ... [2021-11-23 17:34:09,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:08" (1/1) ... [2021-11-23 17:34:09,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:08" (1/1) ... [2021-11-23 17:34:09,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:08" (1/1) ... [2021-11-23 17:34:09,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:08" (1/1) ... [2021-11-23 17:34:09,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:34:09,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:34:09,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:34:09,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:34:09,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:08" (1/1) ... [2021-11-23 17:34:09,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:34:09,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:34:09,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:34:09,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:34:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:34:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-23 17:34:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-23 17:34:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:34:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:34:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:34:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:34:09,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:34:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:34:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:34:09,248 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:34:09,250 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:34:31,749 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:34:31,785 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:34:31,785 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-23 17:34:31,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:34:31 BoogieIcfgContainer [2021-11-23 17:34:31,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:34:31,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:34:31,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:34:31,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:34:31,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:34:08" (1/3) ... [2021-11-23 17:34:31,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd1ba6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:34:31, skipping insertion in model container [2021-11-23 17:34:31,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:08" (2/3) ... [2021-11-23 17:34:31,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd1ba6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:34:31, skipping insertion in model container [2021-11-23 17:34:31,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:34:31" (3/3) ... [2021-11-23 17:34:31,797 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b.c [2021-11-23 17:34:31,803 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:34:31,803 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:34:31,862 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:34:31,871 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 17:34:31,871 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:34:31,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:34:31,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 17:34:31,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:34:31,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:34:31,918 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:34:31,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:34:31,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2021-11-23 17:34:31,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:34:31,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123714111] [2021-11-23 17:34:31,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:34:31,945 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:34:31,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:34:31,948 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:34:31,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:34:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:34:33,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 17:34:33,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:34:33,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:34:33,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:34:33,317 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:34:33,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123714111] [2021-11-23 17:34:33,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123714111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:34:33,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:34:33,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:34:33,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621631295] [2021-11-23 17:34:33,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:34:33,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 17:34:33,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:34:33,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 17:34:33,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 17:34:33,374 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:34:33,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:34:33,399 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2021-11-23 17:34:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 17:34:33,401 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 17:34:33,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:34:33,411 INFO L225 Difference]: With dead ends: 56 [2021-11-23 17:34:33,411 INFO L226 Difference]: Without dead ends: 26 [2021-11-23 17:34:33,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 17:34:33,421 INFO L933 BasicCegarLoop]: 39 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, 39 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 [2021-11-23 17:34:33,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 17:34:33,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-23 17:34:33,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-23 17:34:33,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:34:33,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2021-11-23 17:34:33,477 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2021-11-23 17:34:33,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:34:33,477 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-11-23 17:34:33,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:34:33,478 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-11-23 17:34:33,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 17:34:33,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:34:33,480 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:34:33,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:34:33,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:34:33,704 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:34:33,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:34:33,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2021-11-23 17:34:33,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:34:33,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827064123] [2021-11-23 17:34:33,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:34:33,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:34:33,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:34:33,708 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:34:33,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 17:34:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:34:34,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 17:34:34,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:34:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:34:35,618 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:34:35,618 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:34:35,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [827064123] [2021-11-23 17:34:35,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [827064123] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:34:35,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:34:35,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 17:34:35,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860631533] [2021-11-23 17:34:35,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:34:35,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 17:34:35,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:34:35,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 17:34:35,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:34:35,622 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:34:35,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:34:35,637 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-11-23 17:34:35,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 17:34:35,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-23 17:34:35,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:34:35,639 INFO L225 Difference]: With dead ends: 31 [2021-11-23 17:34:35,639 INFO L226 Difference]: Without dead ends: 26 [2021-11-23 17:34:35,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:34:35,643 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:34:35,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2021-11-23 17:34:35,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-23 17:34:35,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-23 17:34:35,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:34:35,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2021-11-23 17:34:35,652 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 35 transitions. Word has length 11 [2021-11-23 17:34:35,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:34:35,652 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 35 transitions. [2021-11-23 17:34:35,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:34:35,652 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2021-11-23 17:34:35,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 17:34:35,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:34:35,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:34:35,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-23 17:34:35,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:34:35,854 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:34:35,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:34:35,854 INFO L85 PathProgramCache]: Analyzing trace with hash -594923761, now seen corresponding path program 1 times [2021-11-23 17:34:35,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:34:35,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529321477] [2021-11-23 17:34:35,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:34:35,856 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:34:35,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:34:35,857 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:34:35,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 17:34:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:34:36,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 17:34:36,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:34:36,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:34:36,696 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:34:36,696 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:34:36,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529321477] [2021-11-23 17:34:36,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529321477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:34:36,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:34:36,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 17:34:36,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565881198] [2021-11-23 17:34:36,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:34:36,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 17:34:36,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:34:36,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 17:34:36,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:34:36,699 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:34:36,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:34:36,706 INFO L93 Difference]: Finished difference Result 42 states and 58 transitions. [2021-11-23 17:34:36,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 17:34:36,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-23 17:34:36,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:34:36,707 INFO L225 Difference]: With dead ends: 42 [2021-11-23 17:34:36,707 INFO L226 Difference]: Without dead ends: 26 [2021-11-23 17:34:36,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:34:36,709 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:34:36,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2021-11-23 17:34:36,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-23 17:34:36,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-23 17:34:36,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:34:36,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2021-11-23 17:34:36,717 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 11 [2021-11-23 17:34:36,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:34:36,717 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2021-11-23 17:34:36,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:34:36,717 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2021-11-23 17:34:36,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 17:34:36,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:34:36,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:34:36,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 17:34:36,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:34:36,927 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:34:36,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:34:36,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1813045648, now seen corresponding path program 1 times [2021-11-23 17:34:36,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:34:36,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457096663] [2021-11-23 17:34:36,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:34:36,929 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:34:36,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:34:36,930 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:34:36,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 17:34:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:34:37,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 17:34:37,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:34:39,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:34:39,560 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:34:39,560 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:34:39,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457096663] [2021-11-23 17:34:39,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457096663] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:34:39,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:34:39,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 17:34:39,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295868890] [2021-11-23 17:34:39,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:34:39,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 17:34:39,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:34:39,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 17:34:39,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-23 17:34:39,563 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:34:46,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:34:49,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:34:51,240 WARN L534 Checker$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 [] [2021-11-23 17:34:53,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:34:55,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:34:58,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:35:00,050 WARN L534 Checker$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 [] [2021-11-23 17:35:02,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:35:04,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:35:06,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:35:08,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:35:10,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:35:12,715 WARN L534 Checker$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 [] [2021-11-23 17:35:14,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:35:17,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:35:19,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:35:21,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:35:23,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:35:25,454 WARN L534 Checker$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 [] [2021-11-23 17:35:27,461 WARN L534 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 [] [2021-11-23 17:35:27,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:35:27,462 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2021-11-23 17:35:27,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 17:35:27,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-23 17:35:27,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:35:27,517 INFO L225 Difference]: With dead ends: 36 [2021-11-23 17:35:27,517 INFO L226 Difference]: Without dead ends: 31 [2021-11-23 17:35:27,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-23 17:35:27,519 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 26 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:35:27,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 92 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 20 Unknown, 0 Unchecked, 47.0s Time] [2021-11-23 17:35:27,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-23 17:35:27,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2021-11-23 17:35:27,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:35:27,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-11-23 17:35:27,526 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 12 [2021-11-23 17:35:27,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:35:27,526 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-11-23 17:35:27,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:35:27,527 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-11-23 17:35:27,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 17:35:27,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:35:27,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:35:27,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-23 17:35:27,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:35:27,739 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:35:27,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:35:27,740 INFO L85 PathProgramCache]: Analyzing trace with hash -74218210, now seen corresponding path program 1 times [2021-11-23 17:35:27,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:35:27,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1768349637] [2021-11-23 17:35:27,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:35:27,740 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:35:27,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:35:27,741 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:35:27,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 17:35:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:35:28,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 17:35:28,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:35:29,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:35:29,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:35:29,254 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:35:29,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1768349637] [2021-11-23 17:35:29,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1768349637] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:35:29,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:35:29,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 17:35:29,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102131315] [2021-11-23 17:35:29,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:35:29,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 17:35:29,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:35:29,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 17:35:29,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:35:29,256 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2021-11-23 17:35:29,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:35:29,258 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2021-11-23 17:35:29,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 17:35:29,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 [2021-11-23 17:35:29,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:35:29,259 INFO L225 Difference]: With dead ends: 26 [2021-11-23 17:35:29,259 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 17:35:29,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:35:29,260 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:35:29,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2021-11-23 17:35:29,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 17:35:29,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 17:35:29,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:35:29,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 17:35:29,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-11-23 17:35:29,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:35:29,262 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 17:35:29,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2021-11-23 17:35:29,263 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 17:35:29,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 17:35:29,265 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 17:35:29,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-23 17:35:29,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:35:29,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 17:35:30,231 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 72) no Hoare annotation was computed. [2021-11-23 17:35:30,231 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2021-11-23 17:35:30,231 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2021-11-23 17:35:30,232 INFO L854 garLoopResultBuilder]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_~x#1|) (= (_ +zero 11 53) ~zero~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 17:35:30,232 INFO L858 garLoopResultBuilder]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2021-11-23 17:35:30,232 INFO L854 garLoopResultBuilder]: At program point L139(line 139) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res#1|) (= |ULTIMATE.start___ieee754_log_#res#1| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_~x#1|) (= (_ +zero 11 53) ~zero~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 17:35:30,232 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 17:35:30,232 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 17:35:30,232 INFO L858 garLoopResultBuilder]: For program point L61(lines 61 62) no Hoare annotation was computed. [2021-11-23 17:35:30,233 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 17:35:30,233 INFO L858 garLoopResultBuilder]: For program point L152(lines 152 155) no Hoare annotation was computed. [2021-11-23 17:35:30,233 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-11-23 17:35:30,233 INFO L858 garLoopResultBuilder]: For program point L86(lines 86 102) no Hoare annotation was computed. [2021-11-23 17:35:30,233 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 119) no Hoare annotation was computed. [2021-11-23 17:35:30,233 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2021-11-23 17:35:30,234 INFO L854 garLoopResultBuilder]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2021-11-23 17:35:30,234 INFO L858 garLoopResultBuilder]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2021-11-23 17:35:30,234 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 17:35:30,234 INFO L861 garLoopResultBuilder]: At program point L157(lines 141 158) the Hoare annotation is: true [2021-11-23 17:35:30,234 INFO L854 garLoopResultBuilder]: At program point L124(lines 47 126) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_log_#res#1| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_~x#1|) (= (_ +zero 11 53) ~zero~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 17:35:30,234 INFO L858 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-11-23 17:35:30,235 INFO L858 garLoopResultBuilder]: For program point L87(lines 87 94) no Hoare annotation was computed. [2021-11-23 17:35:30,235 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2021-11-23 17:35:30,235 INFO L854 garLoopResultBuilder]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2021-11-23 17:35:30,235 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2021-11-23 17:35:30,235 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 64) no Hoare annotation was computed. [2021-11-23 17:35:30,235 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 124) no Hoare annotation was computed. [2021-11-23 17:35:30,236 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 93) no Hoare annotation was computed. [2021-11-23 17:35:30,236 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 125) no Hoare annotation was computed. [2021-11-23 17:35:30,240 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-23 17:35:30,242 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 17:35:30,253 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,258 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,260 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,261 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,261 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,261 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,261 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,262 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,262 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,263 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,263 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,264 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,264 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,264 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,264 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,265 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,266 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,266 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,266 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,266 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,267 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,267 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,267 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,268 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,268 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,268 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,269 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,269 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,269 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,270 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:35:30 BoogieIcfgContainer [2021-11-23 17:35:30,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 17:35:30,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 17:35:30,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 17:35:30,279 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 17:35:30,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:34:31" (3/4) ... [2021-11-23 17:35:30,283 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 17:35:30,296 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-11-23 17:35:30,297 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-23 17:35:30,297 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 17:35:30,298 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 17:35:30,324 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) && ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-23 17:35:30,325 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1bv32 == \result && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE())) && ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-23 17:35:30,350 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/witness.graphml [2021-11-23 17:35:30,351 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 17:35:30,351 INFO L158 Benchmark]: Toolchain (without parser) took 81790.42ms. Allocated memory was 65.0MB in the beginning and 88.1MB in the end (delta: 23.1MB). Free memory was 44.1MB in the beginning and 64.0MB in the end (delta: -19.8MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2021-11-23 17:35:30,352 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 65.0MB. Free memory was 46.2MB in the beginning and 46.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:35:30,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.71ms. Allocated memory is still 65.0MB. Free memory was 44.0MB in the beginning and 45.6MB in the end (delta: -1.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:35:30,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.37ms. Allocated memory is still 65.0MB. Free memory was 45.6MB in the beginning and 43.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:35:30,353 INFO L158 Benchmark]: Boogie Preprocessor took 86.79ms. Allocated memory is still 65.0MB. Free memory was 43.4MB in the beginning and 41.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:35:30,354 INFO L158 Benchmark]: RCFGBuilder took 22724.10ms. Allocated memory was 65.0MB in the beginning and 88.1MB in the end (delta: 23.1MB). Free memory was 41.7MB in the beginning and 69.4MB in the end (delta: -27.7MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2021-11-23 17:35:30,354 INFO L158 Benchmark]: TraceAbstraction took 58488.50ms. Allocated memory is still 88.1MB. Free memory was 69.0MB in the beginning and 68.8MB in the end (delta: 236.1kB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2021-11-23 17:35:30,355 INFO L158 Benchmark]: Witness Printer took 72.28ms. Allocated memory is still 88.1MB. Free memory was 68.8MB in the beginning and 64.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:35:30,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 65.0MB. Free memory was 46.2MB in the beginning and 46.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.71ms. Allocated memory is still 65.0MB. Free memory was 44.0MB in the beginning and 45.6MB in the end (delta: -1.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.37ms. Allocated memory is still 65.0MB. Free memory was 45.6MB in the beginning and 43.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.79ms. Allocated memory is still 65.0MB. Free memory was 43.4MB in the beginning and 41.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 22724.10ms. Allocated memory was 65.0MB in the beginning and 88.1MB in the end (delta: 23.1MB). Free memory was 41.7MB in the beginning and 69.4MB in the end (delta: -27.7MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * TraceAbstraction took 58488.50ms. Allocated memory is still 88.1MB. Free memory was 69.0MB in the beginning and 68.8MB in the end (delta: 236.1kB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. * Witness Printer took 72.28ms. Allocated memory is still 88.1MB. Free memory was 68.8MB in the beginning and 64.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 153]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 48.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 20 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 47.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 291 SdHoareTripleChecker+Invalid, 45.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 41 IncrementalHoareTripleChecker+Unchecked, 164 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 127 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 96 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 15 QuantifiedInterpolants, 441 SizeOfPredicates, 29 NumberOfNonLiveVariables, 280 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant [2021-11-23 17:35:30,369 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,370 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 139]: Loop Invariant [2021-11-23 17:35:30,370 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,371 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,371 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,371 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,371 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,371 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,372 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,372 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,372 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,373 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,373 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,373 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,373 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,373 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((1bv32 == \result && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE())) && ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 47]: Loop Invariant [2021-11-23 17:35:30,374 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,374 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,375 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,375 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,375 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,375 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,375 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,376 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,376 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,377 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,377 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,377 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,377 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 17:35:30,377 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) && ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-23 17:35:30,594 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-23 17:35:30,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5c686b-ce98-4282-9808-e3c79f3bde7d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE