./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7 --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 63c75cb1914098e0a99942bfcf64a7e270bd0424176714d202a2c3dfb2438929 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:59:30,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:59:30,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:59:30,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:59:30,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:59:30,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:59:30,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:59:30,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:59:30,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:59:30,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:59:30,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:59:30,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:59:30,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:59:30,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:59:30,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:59:30,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:59:30,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:59:30,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:59:30,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:59:30,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:59:30,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:59:30,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:59:30,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:59:30,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:59:30,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:59:30,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:59:30,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:59:30,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:59:30,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:59:30,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:59:30,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:59:30,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:59:30,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:59:31,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:59:31,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:59:31,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:59:31,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:59:31,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:59:31,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:59:31,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:59:31,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:59:31,007 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:59:31,056 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:59:31,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:59:31,063 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:59:31,064 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:59:31,065 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:59:31,065 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:59:31,065 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:59:31,066 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:59:31,066 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:59:31,066 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:59:31,067 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:59:31,068 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:59:31,068 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:59:31,068 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:59:31,068 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:59:31,069 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:59:31,069 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:59:31,069 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:59:31,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:59:31,071 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:59:31,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:59:31,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:59:31,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:59:31,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:59:31,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:59:31,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:59:31,074 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:59:31,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:59:31,075 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:59:31,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:59:31,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:59:31,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:59:31,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:59:31,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:59:31,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:59:31,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:59:31,077 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:59:31,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:59:31,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:59:31,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:59:31,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:59:31,078 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_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63c75cb1914098e0a99942bfcf64a7e270bd0424176714d202a2c3dfb2438929 [2021-11-25 18:59:31,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:59:31,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:59:31,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:59:31,427 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:59:31,428 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:59:31,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2021-11-25 18:59:31,514 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/data/e71b37c10/bfc0912457aa4719912f31ad16c25ddd/FLAG518d45ce2 [2021-11-25 18:59:32,068 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:59:32,070 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2021-11-25 18:59:32,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/data/e71b37c10/bfc0912457aa4719912f31ad16c25ddd/FLAG518d45ce2 [2021-11-25 18:59:32,377 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/data/e71b37c10/bfc0912457aa4719912f31ad16c25ddd [2021-11-25 18:59:32,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:59:32,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:59:32,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:59:32,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:59:32,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:59:32,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:59:32" (1/1) ... [2021-11-25 18:59:32,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2b295c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:32, skipping insertion in model container [2021-11-25 18:59:32,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:59:32" (1/1) ... [2021-11-25 18:59:32,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:59:32,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:59:32,721 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_91a38a1c-f2b1-49c8-8581-d2440347c081/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c[6216,6229] [2021-11-25 18:59:32,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:59:32,735 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:59:32,794 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_91a38a1c-f2b1-49c8-8581-d2440347c081/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c[6216,6229] [2021-11-25 18:59:32,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:59:32,814 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:59:32,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:32 WrapperNode [2021-11-25 18:59:32,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:59:32,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:59:32,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:59:32,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:59:32,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:32" (1/1) ... [2021-11-25 18:59:32,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:32" (1/1) ... [2021-11-25 18:59:32,874 INFO L137 Inliner]: procedures = 19, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 225 [2021-11-25 18:59:32,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:59:32,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:59:32,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:59:32,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:59:32,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:32" (1/1) ... [2021-11-25 18:59:32,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:32" (1/1) ... [2021-11-25 18:59:32,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:32" (1/1) ... [2021-11-25 18:59:32,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:32" (1/1) ... [2021-11-25 18:59:32,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:32" (1/1) ... [2021-11-25 18:59:32,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:32" (1/1) ... [2021-11-25 18:59:32,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:32" (1/1) ... [2021-11-25 18:59:32,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:59:32,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:59:32,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:59:32,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:59:32,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:32" (1/1) ... [2021-11-25 18:59:32,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:59:32,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:59:33,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:59:33,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:59:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:59:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:59:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:59:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-25 18:59:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:59:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-11-25 18:59:33,057 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-11-25 18:59:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-25 18:59:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-11-25 18:59:33,057 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-11-25 18:59:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:59:33,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:59:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:59:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-25 18:59:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:59:33,163 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:59:33,165 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:59:33,786 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:59:33,838 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:59:33,839 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-25 18:59:33,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:59:33 BoogieIcfgContainer [2021-11-25 18:59:33,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:59:33,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:59:33,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:59:33,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:59:33,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:59:32" (1/3) ... [2021-11-25 18:59:33,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5422774d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:59:33, skipping insertion in model container [2021-11-25 18:59:33,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:32" (2/3) ... [2021-11-25 18:59:33,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5422774d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:59:33, skipping insertion in model container [2021-11-25 18:59:33,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:59:33" (3/3) ... [2021-11-25 18:59:33,857 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685b.c [2021-11-25 18:59:33,865 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:59:33,865 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:59:33,935 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:59:33,946 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 [2021-11-25 18:59:33,947 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:59:33,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 62 states have (on average 1.7096774193548387) internal successors, (106), 63 states have internal predecessors, (106), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 18:59:33,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 18:59:33,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:59:33,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:59:33,987 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:59:33,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:59:33,994 INFO L85 PathProgramCache]: Analyzing trace with hash -676477963, now seen corresponding path program 1 times [2021-11-25 18:59:34,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:59:34,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277688022] [2021-11-25 18:59:34,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:59:34,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:59:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:59:34,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:59:34,220 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:59:34,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277688022] [2021-11-25 18:59:34,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277688022] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:59:34,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:59:34,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:59:34,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574557431] [2021-11-25 18:59:34,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:59:34,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 18:59:34,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:59:34,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 18:59:34,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:59:34,262 INFO L87 Difference]: Start difference. First operand has 70 states, 62 states have (on average 1.7096774193548387) internal successors, (106), 63 states have internal predecessors, (106), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-25 18:59:34,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:59:34,322 INFO L93 Difference]: Finished difference Result 139 states and 231 transitions. [2021-11-25 18:59:34,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 18:59:34,325 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-11-25 18:59:34,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:59:34,335 INFO L225 Difference]: With dead ends: 139 [2021-11-25 18:59:34,335 INFO L226 Difference]: Without dead ends: 68 [2021-11-25 18:59:34,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:59:34,358 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:59:34,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:59:34,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-25 18:59:34,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-25 18:59:34,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 61 states have (on average 1.4262295081967213) internal successors, (87), 61 states have internal predecessors, (87), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 18:59:34,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 95 transitions. [2021-11-25 18:59:34,409 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 95 transitions. Word has length 9 [2021-11-25 18:59:34,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:59:34,410 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 95 transitions. [2021-11-25 18:59:34,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-25 18:59:34,411 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 95 transitions. [2021-11-25 18:59:34,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 18:59:34,412 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:59:34,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:59:34,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:59:34,413 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:59:34,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:59:34,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1526360802, now seen corresponding path program 1 times [2021-11-25 18:59:34,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:59:34,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612169064] [2021-11-25 18:59:34,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:59:34,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:59:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:59:34,490 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 18:59:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:59:34,577 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 18:59:34,584 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 18:59:34,587 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 18:59:34,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:59:34,594 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-25 18:59:34,597 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:59:34,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:59:34 BoogieIcfgContainer [2021-11-25 18:59:34,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:59:34,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:59:34,673 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:59:34,674 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:59:34,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:59:33" (3/4) ... [2021-11-25 18:59:34,678 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-25 18:59:34,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:59:34,682 INFO L158 Benchmark]: Toolchain (without parser) took 2294.73ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 69.5MB in the beginning and 94.7MB in the end (delta: -25.2MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2021-11-25 18:59:34,685 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 102.8MB. Free memory was 58.2MB in the beginning and 58.1MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:59:34,692 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.20ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 69.3MB in the beginning and 106.1MB in the end (delta: -36.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 18:59:34,693 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.98ms. Allocated memory is still 136.3MB. Free memory was 106.1MB in the beginning and 104.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:59:34,695 INFO L158 Benchmark]: Boogie Preprocessor took 92.30ms. Allocated memory is still 136.3MB. Free memory was 104.0MB in the beginning and 101.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:59:34,696 INFO L158 Benchmark]: RCFGBuilder took 873.50ms. Allocated memory is still 136.3MB. Free memory was 101.2MB in the beginning and 76.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-25 18:59:34,697 INFO L158 Benchmark]: TraceAbstraction took 828.55ms. Allocated memory is still 136.3MB. Free memory was 75.8MB in the beginning and 95.5MB in the end (delta: -19.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:59:34,698 INFO L158 Benchmark]: Witness Printer took 7.06ms. Allocated memory is still 136.3MB. Free memory was 95.5MB in the beginning and 94.7MB in the end (delta: 800.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:59:34,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 102.8MB. Free memory was 58.2MB in the beginning and 58.1MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.20ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 69.3MB in the beginning and 106.1MB in the end (delta: -36.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.98ms. Allocated memory is still 136.3MB. Free memory was 106.1MB in the beginning and 104.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.30ms. Allocated memory is still 136.3MB. Free memory was 104.0MB in the beginning and 101.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 873.50ms. Allocated memory is still 136.3MB. Free memory was 101.2MB in the beginning and 76.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 828.55ms. Allocated memory is still 136.3MB. Free memory was 75.8MB in the beginning and 95.5MB in the end (delta: -19.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.06ms. Allocated memory is still 136.3MB. Free memory was 95.5MB in the beginning and 94.7MB in the end (delta: 800.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 260]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 259. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L253] double x = -1.0 / 0.0; [L254] double y = -1.0 / 0.0; [L256] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, hy=0, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, hy=0, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L256] RET, EXPR __ieee754_atan2(y, x) [L256] double res = __ieee754_atan2(y, x); [L259] COND TRUE res != -3 * pi_o_4 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L260] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 84 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 84 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-25 18:59:34,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/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_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7 --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 63c75cb1914098e0a99942bfcf64a7e270bd0424176714d202a2c3dfb2438929 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:59:37,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:59:37,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:59:37,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:59:37,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:59:37,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:59:37,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:59:37,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:59:37,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:59:37,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:59:37,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:59:37,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:59:37,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:59:37,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:59:37,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:59:37,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:59:37,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:59:37,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:59:37,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:59:37,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:59:37,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:59:37,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:59:37,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:59:37,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:59:37,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:59:37,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:59:37,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:59:37,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:59:37,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:59:37,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:59:37,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:59:37,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:59:37,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:59:37,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:59:37,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:59:37,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:59:37,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:59:37,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:59:37,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:59:37,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:59:37,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:59:37,536 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-25 18:59:37,568 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:59:37,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:59:37,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:59:37,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:59:37,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:59:37,570 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:59:37,570 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:59:37,570 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:59:37,571 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:59:37,571 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:59:37,571 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:59:37,571 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:59:37,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:59:37,573 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:59:37,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:59:37,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:59:37,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:59:37,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:59:37,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:59:37,574 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 18:59:37,574 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-25 18:59:37,574 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-25 18:59:37,575 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:59:37,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:59:37,575 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:59:37,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:59:37,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:59:37,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-25 18:59:37,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:59:37,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:59:37,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:59:37,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:59:37,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:59:37,577 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-25 18:59:37,578 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-25 18:59:37,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:59:37,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:59:37,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:59:37,579 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_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63c75cb1914098e0a99942bfcf64a7e270bd0424176714d202a2c3dfb2438929 [2021-11-25 18:59:38,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:59:38,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:59:38,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:59:38,050 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:59:38,053 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:59:38,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2021-11-25 18:59:38,133 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/data/097297cd3/bbf2d8317bf64c4a82e23cf76f021c14/FLAGba39268ba [2021-11-25 18:59:38,664 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:59:38,666 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2021-11-25 18:59:38,686 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/data/097297cd3/bbf2d8317bf64c4a82e23cf76f021c14/FLAGba39268ba [2021-11-25 18:59:39,045 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/data/097297cd3/bbf2d8317bf64c4a82e23cf76f021c14 [2021-11-25 18:59:39,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:59:39,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:59:39,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:59:39,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:59:39,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:59:39,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:59:39" (1/1) ... [2021-11-25 18:59:39,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a946e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:39, skipping insertion in model container [2021-11-25 18:59:39,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:59:39" (1/1) ... [2021-11-25 18:59:39,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:59:39,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:59:39,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c[6216,6229] [2021-11-25 18:59:39,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:59:39,496 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:59:39,593 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_91a38a1c-f2b1-49c8-8581-d2440347c081/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c[6216,6229] [2021-11-25 18:59:39,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:59:39,643 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:59:39,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:39 WrapperNode [2021-11-25 18:59:39,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:59:39,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:59:39,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:59:39,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:59:39,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:39" (1/1) ... [2021-11-25 18:59:39,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:39" (1/1) ... [2021-11-25 18:59:39,733 INFO L137 Inliner]: procedures = 22, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 226 [2021-11-25 18:59:39,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:59:39,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:59:39,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:59:39,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:59:39,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:39" (1/1) ... [2021-11-25 18:59:39,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:39" (1/1) ... [2021-11-25 18:59:39,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:39" (1/1) ... [2021-11-25 18:59:39,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:39" (1/1) ... [2021-11-25 18:59:39,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:39" (1/1) ... [2021-11-25 18:59:39,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:39" (1/1) ... [2021-11-25 18:59:39,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:39" (1/1) ... [2021-11-25 18:59:39,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:59:39,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:59:39,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:59:39,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:59:39,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:39" (1/1) ... [2021-11-25 18:59:39,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:59:39,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:59:39,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:59:39,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:59:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:59:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-25 18:59:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-25 18:59:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-25 18:59:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:59:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-11-25 18:59:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-11-25 18:59:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-25 18:59:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-11-25 18:59:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-11-25 18:59:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-25 18:59:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:59:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:59:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-25 18:59:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:59:40,109 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:59:40,111 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:00:00,868 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:00:00,878 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:00:00,878 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-25 19:00:00,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:00:00 BoogieIcfgContainer [2021-11-25 19:00:00,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:00:00,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:00:00,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:00:00,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:00:00,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:59:39" (1/3) ... [2021-11-25 19:00:00,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26111225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:00:00, skipping insertion in model container [2021-11-25 19:00:00,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:39" (2/3) ... [2021-11-25 19:00:00,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26111225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:00:00, skipping insertion in model container [2021-11-25 19:00:00,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:00:00" (3/3) ... [2021-11-25 19:00:00,899 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685b.c [2021-11-25 19:00:00,909 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:00:00,910 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:00:00,964 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:00:00,971 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 [2021-11-25 19:00:00,972 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:00:00,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 84 states have (on average 1.6666666666666667) internal successors, (140), 85 states have internal predecessors, (140), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 19:00:00,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 19:00:00,997 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:00:00,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:00:00,998 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:00:01,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:00:01,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1713470270, now seen corresponding path program 1 times [2021-11-25 19:00:01,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:00:01,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732934578] [2021-11-25 19:00:01,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:00:01,030 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:00:01,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:00:01,034 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:00:01,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-25 19:00:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:00:01,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-25 19:00:01,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:00:01,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:00:01,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:00:01,892 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:00:01,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732934578] [2021-11-25 19:00:01,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732934578] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:00:01,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:00:01,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:00:01,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171715964] [2021-11-25 19:00:01,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:00:01,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 19:00:01,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:00:01,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 19:00:01,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:00:01,935 INFO L87 Difference]: Start difference. First operand has 92 states, 84 states have (on average 1.6666666666666667) internal successors, (140), 85 states have internal predecessors, (140), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:00:01,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:00:01,969 INFO L93 Difference]: Finished difference Result 182 states and 298 transitions. [2021-11-25 19:00:01,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 19:00:01,971 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 [2021-11-25 19:00:01,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:00:01,979 INFO L225 Difference]: With dead ends: 182 [2021-11-25 19:00:01,979 INFO L226 Difference]: Without dead ends: 89 [2021-11-25 19:00:01,983 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 [2021-11-25 19:00:01,987 INFO L933 BasicCegarLoop]: 131 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, 131 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 [2021-11-25 19:00:01,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:00:02,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-25 19:00:02,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-11-25 19:00:02,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 82 states have (on average 1.4634146341463414) internal successors, (120), 82 states have internal predecessors, (120), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 19:00:02,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 128 transitions. [2021-11-25 19:00:02,028 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 128 transitions. Word has length 10 [2021-11-25 19:00:02,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:00:02,028 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 128 transitions. [2021-11-25 19:00:02,028 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) [2021-11-25 19:00:02,029 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 128 transitions. [2021-11-25 19:00:02,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 19:00:02,029 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:00:02,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:00:02,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-25 19:00:02,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:00:02,232 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:00:02,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:00:02,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1701355047, now seen corresponding path program 1 times [2021-11-25 19:00:02,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:00:02,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030045026] [2021-11-25 19:00:02,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:00:02,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:00:02,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:00:02,237 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:00:02,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-25 19:00:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:00:02,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-25 19:00:02,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:00:03,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:00:03,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2021-11-25 19:00:06,193 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:00:06,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 46 [2021-11-25 19:00:06,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-11-25 19:00:09,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:00:09,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:00:09,127 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:00:09,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030045026] [2021-11-25 19:00:09,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030045026] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:00:09,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:00:09,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:00:09,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25257686] [2021-11-25 19:00:09,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:00:09,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 19:00:09,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:00:09,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 19:00:09,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:00:09,131 INFO L87 Difference]: Start difference. First operand 89 states and 128 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 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) [2021-11-25 19:00:09,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:00:09,187 INFO L93 Difference]: Finished difference Result 93 states and 131 transitions. [2021-11-25 19:00:09,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:00:09,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 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 [2021-11-25 19:00:09,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:00:09,193 INFO L225 Difference]: With dead ends: 93 [2021-11-25 19:00:09,193 INFO L226 Difference]: Without dead ends: 89 [2021-11-25 19:00:09,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:00:09,197 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:00:09,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 662 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 72 Unchecked, 0.0s Time] [2021-11-25 19:00:09,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-25 19:00:09,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-11-25 19:00:09,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 82 states have (on average 1.451219512195122) internal successors, (119), 82 states have internal predecessors, (119), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 19:00:09,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2021-11-25 19:00:09,231 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 12 [2021-11-25 19:00:09,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:00:09,231 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2021-11-25 19:00:09,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 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) [2021-11-25 19:00:09,232 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2021-11-25 19:00:09,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 19:00:09,233 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:00:09,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:00:09,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-25 19:00:09,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:00:09,446 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:00:09,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:00:09,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1174160583, now seen corresponding path program 1 times [2021-11-25 19:00:09,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:00:09,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794273996] [2021-11-25 19:00:09,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:00:09,448 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:00:09,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:00:09,449 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:00:09,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-25 19:00:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:00:09,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 19:00:09,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:00:11,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:00:11,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:00:11,783 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:00:11,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794273996] [2021-11-25 19:00:11,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1794273996] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:00:11,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:00:11,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:00:11,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195167656] [2021-11-25 19:00:11,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:00:11,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:00:11,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:00:11,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:00:11,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:00:11,786 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:00:11,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:00:11,800 INFO L93 Difference]: Finished difference Result 97 states and 133 transitions. [2021-11-25 19:00:11,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:00:11,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-25 19:00:11,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:00:11,803 INFO L225 Difference]: With dead ends: 97 [2021-11-25 19:00:11,803 INFO L226 Difference]: Without dead ends: 91 [2021-11-25 19:00:11,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:00:11,806 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 16 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:00:11,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 446 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time] [2021-11-25 19:00:11,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-11-25 19:00:11,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2021-11-25 19:00:11,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 80 states have (on average 1.4375) internal successors, (115), 80 states have internal predecessors, (115), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 19:00:11,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 123 transitions. [2021-11-25 19:00:11,820 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 123 transitions. Word has length 17 [2021-11-25 19:00:11,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:00:11,821 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 123 transitions. [2021-11-25 19:00:11,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:00:11,821 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 123 transitions. [2021-11-25 19:00:11,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 19:00:11,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:00:11,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:00:11,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-25 19:00:12,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:00:12,036 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:00:12,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:00:12,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1166643321, now seen corresponding path program 1 times [2021-11-25 19:00:12,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:00:12,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023060241] [2021-11-25 19:00:12,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:00:12,038 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:00:12,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:00:12,040 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:00:12,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-25 19:00:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:00:12,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 19:00:12,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:00:13,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:00:13,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:00:13,878 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:00:13,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023060241] [2021-11-25 19:00:13,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023060241] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:00:13,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:00:13,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:00:13,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153347083] [2021-11-25 19:00:13,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:00:13,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:00:13,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:00:13,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:00:13,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:00:13,880 INFO L87 Difference]: Start difference. First operand 87 states and 123 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:00:13,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:00:13,900 INFO L93 Difference]: Finished difference Result 159 states and 223 transitions. [2021-11-25 19:00:13,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:00:13,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-25 19:00:13,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:00:13,902 INFO L225 Difference]: With dead ends: 159 [2021-11-25 19:00:13,902 INFO L226 Difference]: Without dead ends: 85 [2021-11-25 19:00:13,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:00:13,905 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 5 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:00:13,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 423 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time] [2021-11-25 19:00:13,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-25 19:00:13,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 81. [2021-11-25 19:00:13,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 74 states have (on average 1.4054054054054055) internal successors, (104), 74 states have internal predecessors, (104), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 19:00:13,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 112 transitions. [2021-11-25 19:00:13,917 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 112 transitions. Word has length 17 [2021-11-25 19:00:13,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:00:13,917 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 112 transitions. [2021-11-25 19:00:13,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:00:13,918 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 112 transitions. [2021-11-25 19:00:13,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-25 19:00:13,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:00:13,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:00:13,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-25 19:00:14,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:00:14,135 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:00:14,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:00:14,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1721131170, now seen corresponding path program 1 times [2021-11-25 19:00:14,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:00:14,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061754805] [2021-11-25 19:00:14,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:00:14,138 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:00:14,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:00:14,139 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:00:14,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-25 19:00:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:00:14,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 19:00:14,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:00:16,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:00:16,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:00:16,268 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:00:16,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2061754805] [2021-11-25 19:00:16,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2061754805] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:00:16,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:00:16,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:00:16,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521730155] [2021-11-25 19:00:16,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:00:16,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:00:16,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:00:16,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:00:16,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:00:16,270 INFO L87 Difference]: Start difference. First operand 81 states and 112 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:00:16,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:00:16,280 INFO L93 Difference]: Finished difference Result 141 states and 191 transitions. [2021-11-25 19:00:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:00:16,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-25 19:00:16,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:00:16,282 INFO L225 Difference]: With dead ends: 141 [2021-11-25 19:00:16,282 INFO L226 Difference]: Without dead ends: 81 [2021-11-25 19:00:16,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:00:16,285 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 6 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:00:16,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 372 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 12 Unchecked, 0.0s Time] [2021-11-25 19:00:16,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-25 19:00:16,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2021-11-25 19:00:16,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 69 states have internal predecessors, (94), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 19:00:16,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 102 transitions. [2021-11-25 19:00:16,296 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 102 transitions. Word has length 18 [2021-11-25 19:00:16,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:00:16,296 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 102 transitions. [2021-11-25 19:00:16,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:00:16,297 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 102 transitions. [2021-11-25 19:00:16,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-25 19:00:16,298 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:00:16,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:00:16,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-25 19:00:16,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:00:16,515 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:00:16,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:00:16,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1698251682, now seen corresponding path program 1 times [2021-11-25 19:00:16,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:00:16,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999186276] [2021-11-25 19:00:16,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:00:16,516 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:00:16,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:00:16,517 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:00:16,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-25 19:00:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:00:17,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-25 19:00:17,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:00:19,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:00:19,696 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:00:19,696 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:00:19,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999186276] [2021-11-25 19:00:19,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999186276] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:00:19,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:00:19,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 19:00:19,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390227309] [2021-11-25 19:00:19,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:00:19,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:00:19,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:00:19,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:00:19,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:00:19,699 INFO L87 Difference]: Start difference. First operand 76 states and 102 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:00:21,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:00:22,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:00:22,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:00:22,307 INFO L93 Difference]: Finished difference Result 93 states and 123 transitions. [2021-11-25 19:00:22,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:00:22,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-25 19:00:22,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:00:22,310 INFO L225 Difference]: With dead ends: 93 [2021-11-25 19:00:22,311 INFO L226 Difference]: Without dead ends: 89 [2021-11-25 19:00:22,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:00:22,313 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 14 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:00:22,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 464 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 17 Unchecked, 2.6s Time] [2021-11-25 19:00:22,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-25 19:00:22,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 76. [2021-11-25 19:00:22,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 69 states have (on average 1.3478260869565217) internal successors, (93), 69 states have internal predecessors, (93), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 19:00:22,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 101 transitions. [2021-11-25 19:00:22,326 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 101 transitions. Word has length 18 [2021-11-25 19:00:22,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:00:22,327 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 101 transitions. [2021-11-25 19:00:22,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:00:22,327 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 101 transitions. [2021-11-25 19:00:22,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 19:00:22,329 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:00:22,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:00:22,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-25 19:00:22,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:00:22,548 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:00:22,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:00:22,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1104553500, now seen corresponding path program 1 times [2021-11-25 19:00:22,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:00:22,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875466515] [2021-11-25 19:00:22,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:00:22,549 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:00:22,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:00:22,551 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:00:22,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-25 19:00:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:00:23,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 19:00:23,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:00:26,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:00:26,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:00:26,412 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:00:26,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875466515] [2021-11-25 19:00:26,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875466515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:00:26,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:00:26,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:00:26,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686900862] [2021-11-25 19:00:26,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:00:26,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 19:00:26,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:00:26,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 19:00:26,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:00:26,416 INFO L87 Difference]: Start difference. First operand 76 states and 101 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:00:28,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:00:29,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:00:29,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:00:29,992 INFO L93 Difference]: Finished difference Result 93 states and 122 transitions. [2021-11-25 19:00:29,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:00:29,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-25 19:00:29,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:00:29,994 INFO L225 Difference]: With dead ends: 93 [2021-11-25 19:00:29,994 INFO L226 Difference]: Without dead ends: 89 [2021-11-25 19:00:29,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:00:29,996 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 14 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:00:29,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 445 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 19 Unchecked, 3.6s Time] [2021-11-25 19:00:29,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-25 19:00:30,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 76. [2021-11-25 19:00:30,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 69 states have (on average 1.3333333333333333) internal successors, (92), 69 states have internal predecessors, (92), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 19:00:30,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 100 transitions. [2021-11-25 19:00:30,008 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 100 transitions. Word has length 19 [2021-11-25 19:00:30,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:00:30,009 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 100 transitions. [2021-11-25 19:00:30,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:00:30,009 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 100 transitions. [2021-11-25 19:00:30,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 19:00:30,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:00:30,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:00:30,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-25 19:00:30,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:00:30,236 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:00:30,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:00:30,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1576098362, now seen corresponding path program 1 times [2021-11-25 19:00:30,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:00:30,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1766922297] [2021-11-25 19:00:30,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:00:30,238 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:00:30,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:00:30,239 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:00:30,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-25 19:00:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:00:30,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 19:00:30,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:00:32,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:00:32,655 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:00:32,655 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:00:32,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1766922297] [2021-11-25 19:00:32,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1766922297] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:00:32,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:00:32,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:00:32,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717997448] [2021-11-25 19:00:32,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:00:32,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:00:32,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:00:32,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:00:32,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:00:32,657 INFO L87 Difference]: Start difference. First operand 76 states and 100 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:00:32,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:00:32,663 INFO L93 Difference]: Finished difference Result 135 states and 177 transitions. [2021-11-25 19:00:32,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:00:32,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-25 19:00:32,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:00:32,665 INFO L225 Difference]: With dead ends: 135 [2021-11-25 19:00:32,665 INFO L226 Difference]: Without dead ends: 80 [2021-11-25 19:00:32,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:00:32,671 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 5 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:00:32,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 368 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 12 Unchecked, 0.0s Time] [2021-11-25 19:00:32,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-25 19:00:32,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 76. [2021-11-25 19:00:32,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 69 states have (on average 1.318840579710145) internal successors, (91), 69 states have internal predecessors, (91), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 19:00:32,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 99 transitions. [2021-11-25 19:00:32,684 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 99 transitions. Word has length 19 [2021-11-25 19:00:32,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:00:32,684 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 99 transitions. [2021-11-25 19:00:32,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:00:32,685 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 99 transitions. [2021-11-25 19:00:32,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 19:00:32,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:00:32,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:00:32,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-25 19:00:32,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:00:32,910 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:00:32,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:00:32,911 INFO L85 PathProgramCache]: Analyzing trace with hash -120072003, now seen corresponding path program 1 times [2021-11-25 19:00:32,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:00:32,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84574310] [2021-11-25 19:00:32,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:00:32,912 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:00:32,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:00:32,913 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:00:32,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-25 19:00:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:00:33,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-25 19:00:33,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:00:33,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 16 [2021-11-25 19:00:35,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-25 19:00:41,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:00:41,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:00:41,374 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:00:41,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84574310] [2021-11-25 19:00:41,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84574310] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:00:41,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:00:41,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 19:00:41,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585690056] [2021-11-25 19:00:41,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:00:41,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:00:41,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:00:41,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:00:41,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:00:41,376 INFO L87 Difference]: Start difference. First operand 76 states and 99 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:00:41,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:00:41,382 INFO L93 Difference]: Finished difference Result 80 states and 102 transitions. [2021-11-25 19:00:41,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 19:00:41,382 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-25 19:00:41,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:00:41,383 INFO L225 Difference]: With dead ends: 80 [2021-11-25 19:00:41,383 INFO L226 Difference]: Without dead ends: 76 [2021-11-25 19:00:41,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:00:41,384 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:00:41,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 569 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 36 Unchecked, 0.0s Time] [2021-11-25 19:00:41,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-11-25 19:00:41,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-11-25 19:00:41,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 69 states have internal predecessors, (90), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 19:00:41,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2021-11-25 19:00:41,393 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 20 [2021-11-25 19:00:41,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:00:41,394 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2021-11-25 19:00:41,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:00:41,394 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2021-11-25 19:00:41,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-25 19:00:41,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:00:41,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:00:41,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-25 19:00:41,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:00:41,604 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:00:41,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:00:41,604 INFO L85 PathProgramCache]: Analyzing trace with hash 571392023, now seen corresponding path program 1 times [2021-11-25 19:00:41,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:00:41,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314974890] [2021-11-25 19:00:41,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:00:41,605 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:00:41,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:00:41,606 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:00:41,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-25 19:00:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:00:42,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 19:00:42,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:00:56,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:00:56,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:00:56,828 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:00:56,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314974890] [2021-11-25 19:00:56,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314974890] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:00:56,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:00:56,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:00:56,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403335847] [2021-11-25 19:00:56,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:00:56,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:00:56,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:00:56,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:00:56,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:00:56,830 INFO L87 Difference]: Start difference. First operand 76 states and 98 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:01:10,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:13,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:15,620 WARN L534 Checker$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 [] [2021-11-25 19:01:17,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:19,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:21,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:23,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:25,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:29,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:31,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:32,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:36,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:39,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:41,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:44,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:47,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:49,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:51,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:51,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:01:51,239 INFO L93 Difference]: Finished difference Result 83 states and 105 transitions. [2021-11-25 19:01:51,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:01:51,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-25 19:01:51,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:01:51,243 INFO L225 Difference]: With dead ends: 83 [2021-11-25 19:01:51,243 INFO L226 Difference]: Without dead ends: 79 [2021-11-25 19:01:51,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:01:51,245 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 73 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:01:51,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 215 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 15 Unknown, 0 Unchecked, 46.0s Time] [2021-11-25 19:01:51,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-25 19:01:51,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2021-11-25 19:01:51,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 69 states have (on average 1.289855072463768) internal successors, (89), 69 states have internal predecessors, (89), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 19:01:51,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 97 transitions. [2021-11-25 19:01:51,254 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 97 transitions. Word has length 21 [2021-11-25 19:01:51,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:01:51,254 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 97 transitions. [2021-11-25 19:01:51,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:01:51,255 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2021-11-25 19:01:51,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-25 19:01:51,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:01:51,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:01:51,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-25 19:01:51,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:01:51,468 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:01:51,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:01:51,468 INFO L85 PathProgramCache]: Analyzing trace with hash 152585799, now seen corresponding path program 1 times [2021-11-25 19:01:51,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:01:51,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027140790] [2021-11-25 19:01:51,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:01:51,469 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:01:51,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:01:51,470 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:01:51,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-25 19:01:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:01:51,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 19:01:51,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:01:53,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:01:53,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:01:53,556 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:01:53,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027140790] [2021-11-25 19:01:53,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027140790] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:01:53,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:01:53,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:01:53,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344418954] [2021-11-25 19:01:53,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:01:53,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:01:53,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:01:53,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:01:53,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:01:53,558 INFO L87 Difference]: Start difference. First operand 76 states and 97 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 19:01:53,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:01:53,563 INFO L93 Difference]: Finished difference Result 112 states and 142 transitions. [2021-11-25 19:01:53,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:01:53,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-11-25 19:01:53,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:01:53,565 INFO L225 Difference]: With dead ends: 112 [2021-11-25 19:01:53,565 INFO L226 Difference]: Without dead ends: 74 [2021-11-25 19:01:53,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:01:53,567 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:01:53,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 261 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 6 Unchecked, 0.0s Time] [2021-11-25 19:01:53,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-25 19:01:53,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-11-25 19:01:53,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 68 states have (on average 1.2794117647058822) internal successors, (87), 68 states have internal predecessors, (87), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 19:01:53,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 93 transitions. [2021-11-25 19:01:53,575 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 93 transitions. Word has length 25 [2021-11-25 19:01:53,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:01:53,575 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 93 transitions. [2021-11-25 19:01:53,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 19:01:53,576 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 93 transitions. [2021-11-25 19:01:53,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-25 19:01:53,577 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:01:53,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:01:53,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-25 19:01:53,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:01:53,802 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:01:53,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:01:53,803 INFO L85 PathProgramCache]: Analyzing trace with hash 26104402, now seen corresponding path program 1 times [2021-11-25 19:01:53,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:01:53,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408256051] [2021-11-25 19:01:53,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:01:53,803 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:01:53,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:01:53,806 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:01:53,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-25 19:01:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:01:54,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-25 19:01:54,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:01:54,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 16 [2021-11-25 19:01:56,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-25 19:02:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:02:02,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:02:02,199 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:02:02,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408256051] [2021-11-25 19:02:02,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408256051] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:02:02,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:02:02,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:02:02,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406273376] [2021-11-25 19:02:02,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:02:02,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 19:02:02,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:02:02,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 19:02:02,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:02:02,201 INFO L87 Difference]: Start difference. First operand 74 states and 93 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:02:02,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:02:02,227 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2021-11-25 19:02:02,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:02:02,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-25 19:02:02,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:02:02,229 INFO L225 Difference]: With dead ends: 74 [2021-11-25 19:02:02,229 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 19:02:02,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:02:02,230 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:02:02,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time] [2021-11-25 19:02:02,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 19:02:02,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 19:02:02,231 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) [2021-11-25 19:02:02,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 19:02:02,232 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-11-25 19:02:02,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:02:02,232 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 19:02:02,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:02:02,232 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 19:02:02,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 19:02:02,235 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 19:02:02,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-25 19:02:02,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:02:02,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 19:02:05,715 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 31) no Hoare annotation was computed. [2021-11-25 19:02:05,716 INFO L858 garLoopResultBuilder]: For program point L26-1(lines 19 33) no Hoare annotation was computed. [2021-11-25 19:02:05,716 INFO L858 garLoopResultBuilder]: For program point fabs_doubleEXIT(lines 19 33) no Hoare annotation was computed. [2021-11-25 19:02:05,716 INFO L858 garLoopResultBuilder]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2021-11-25 19:02:05,716 INFO L861 garLoopResultBuilder]: At program point fabs_doubleENTRY(lines 19 33) the Hoare annotation is: true [2021-11-25 19:02:05,717 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-11-25 19:02:05,717 INFO L861 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: true [2021-11-25 19:02:05,717 INFO L858 garLoopResultBuilder]: For program point fabs_doubleFINAL(lines 19 33) no Hoare annotation was computed. [2021-11-25 19:02:05,717 INFO L861 garLoopResultBuilder]: At program point L97(line 97) the Hoare annotation is: true [2021-11-25 19:02:05,717 INFO L858 garLoopResultBuilder]: For program point L97-1(line 97) no Hoare annotation was computed. [2021-11-25 19:02:05,717 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 88) no Hoare annotation was computed. [2021-11-25 19:02:05,717 INFO L858 garLoopResultBuilder]: For program point L98(lines 98 114) no Hoare annotation was computed. [2021-11-25 19:02:05,718 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 115) no Hoare annotation was computed. [2021-11-25 19:02:05,718 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2021-11-25 19:02:05,718 INFO L861 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: true [2021-11-25 19:02:05,718 INFO L858 garLoopResultBuilder]: For program point L78-3(lines 76 89) no Hoare annotation was computed. [2021-11-25 19:02:05,718 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 113) no Hoare annotation was computed. [2021-11-25 19:02:05,718 INFO L858 garLoopResultBuilder]: For program point L107-2(lines 90 115) no Hoare annotation was computed. [2021-11-25 19:02:05,718 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 70 74) no Hoare annotation was computed. [2021-11-25 19:02:05,718 INFO L861 garLoopResultBuilder]: At program point L70-2(lines 70 74) the Hoare annotation is: true [2021-11-25 19:02:05,718 INFO L858 garLoopResultBuilder]: For program point L132(line 132) no Hoare annotation was computed. [2021-11-25 19:02:05,719 INFO L858 garLoopResultBuilder]: For program point L70-3(lines 70 74) no Hoare annotation was computed. [2021-11-25 19:02:05,719 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 105) no Hoare annotation was computed. [2021-11-25 19:02:05,719 INFO L858 garLoopResultBuilder]: For program point L132-2(line 132) no Hoare annotation was computed. [2021-11-25 19:02:05,719 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 133) no Hoare annotation was computed. [2021-11-25 19:02:05,719 INFO L858 garLoopResultBuilder]: For program point L91(lines 91 94) no Hoare annotation was computed. [2021-11-25 19:02:05,720 INFO L858 garLoopResultBuilder]: For program point L91-2(lines 91 94) no Hoare annotation was computed. [2021-11-25 19:02:05,720 INFO L858 garLoopResultBuilder]: For program point atan_doubleEXIT(lines 66 134) no Hoare annotation was computed. [2021-11-25 19:02:05,720 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2021-11-25 19:02:05,720 INFO L861 garLoopResultBuilder]: At program point atan_doubleENTRY(lines 66 134) the Hoare annotation is: true [2021-11-25 19:02:05,720 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 89) no Hoare annotation was computed. [2021-11-25 19:02:05,720 INFO L858 garLoopResultBuilder]: For program point atan_doubleFINAL(lines 66 134) no Hoare annotation was computed. [2021-11-25 19:02:05,720 INFO L858 garLoopResultBuilder]: For program point L192(line 192) no Hoare annotation was computed. [2021-11-25 19:02:05,720 INFO L858 garLoopResultBuilder]: For program point L217(lines 217 220) no Hoare annotation was computed. [2021-11-25 19:02:05,720 INFO L858 garLoopResultBuilder]: For program point L217-2(lines 215 220) no Hoare annotation was computed. [2021-11-25 19:02:05,720 INFO L858 garLoopResultBuilder]: For program point L201(line 201) no Hoare annotation was computed. [2021-11-25 19:02:05,721 INFO L858 garLoopResultBuilder]: For program point L259(lines 259 262) no Hoare annotation was computed. [2021-11-25 19:02:05,721 INFO L858 garLoopResultBuilder]: For program point L226-1(lines 226 230) no Hoare annotation was computed. [2021-11-25 19:02:05,721 INFO L854 garLoopResultBuilder]: At program point L226-2(lines 226 230) the Hoare annotation is: false [2021-11-25 19:02:05,721 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 19:02:05,721 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-25 19:02:05,721 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 209) no Hoare annotation was computed. [2021-11-25 19:02:05,721 INFO L858 garLoopResultBuilder]: For program point L185-1(lines 144 244) no Hoare annotation was computed. [2021-11-25 19:02:05,721 INFO L858 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-11-25 19:02:05,721 INFO L854 garLoopResultBuilder]: At program point L144(lines 144 244) the Hoare annotation is: (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)))) (and (= .cse0 ~tiny_atan2~0) (= |ULTIMATE.start___ieee754_atan2_#res#1| (fp.sub currentRoundingMode (fp.mul currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 3.0)) ~pi_o_4~0) .cse0)) (= ~pi_o_4~0 ((_ to_fp 11 53) currentRoundingMode (/ 785398163397448279.0 1000000000000000000.0))) (= currentRoundingMode roundNearestTiesToEven))) [2021-11-25 19:02:05,722 INFO L858 garLoopResultBuilder]: For program point L260(line 260) no Hoare annotation was computed. [2021-11-25 19:02:05,722 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-25 19:02:05,722 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 208) no Hoare annotation was computed. [2021-11-25 19:02:05,722 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-11-25 19:02:05,723 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 180) no Hoare annotation was computed. [2021-11-25 19:02:05,723 INFO L858 garLoopResultBuilder]: For program point L170-2(lines 144 244) no Hoare annotation was computed. [2021-11-25 19:02:05,723 INFO L854 garLoopResultBuilder]: At program point L220(line 220) the Hoare annotation is: false [2021-11-25 19:02:05,723 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 196) no Hoare annotation was computed. [2021-11-25 19:02:05,723 INFO L854 garLoopResultBuilder]: At program point L220-1(line 220) the Hoare annotation is: false [2021-11-25 19:02:05,724 INFO L858 garLoopResultBuilder]: For program point L220-2(line 220) no Hoare annotation was computed. [2021-11-25 19:02:05,724 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-25 19:02:05,724 INFO L858 garLoopResultBuilder]: For program point L212-2(line 212) no Hoare annotation was computed. [2021-11-25 19:02:05,724 INFO L858 garLoopResultBuilder]: For program point L171(lines 171 179) no Hoare annotation was computed. [2021-11-25 19:02:05,724 INFO L858 garLoopResultBuilder]: For program point L163(lines 163 165) no Hoare annotation was computed. [2021-11-25 19:02:05,725 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 243) no Hoare annotation was computed. [2021-11-25 19:02:05,725 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-11-25 19:02:05,725 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-11-25 19:02:05,725 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-11-25 19:02:05,725 INFO L858 garLoopResultBuilder]: For program point L172-2(line 172) no Hoare annotation was computed. [2021-11-25 19:02:05,726 INFO L861 garLoopResultBuilder]: At program point L263(lines 246 264) the Hoare annotation is: true [2021-11-25 19:02:05,726 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-25 19:02:05,726 INFO L858 garLoopResultBuilder]: For program point L222(line 222) no Hoare annotation was computed. [2021-11-25 19:02:05,726 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 156 161) no Hoare annotation was computed. [2021-11-25 19:02:05,727 INFO L854 garLoopResultBuilder]: At program point L156-2(lines 156 161) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) ~tiny_atan2~0) (exists ((|v_skolemized_q#valueAsBitvector_23| (_ BitVec 64)) (|v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (let ((.cse3 (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6|))) (let ((.cse0 (select .cse3 (_ bv0 32))) (.cse1 (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))) (.cse2 (select .cse3 (_ bv4 32)))) (and (= .cse0 |ULTIMATE.start___ieee754_atan2_~lx~0#1|) (= .cse0 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_23|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_23|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_23|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_23|)) .cse1) (= .cse2 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_23|)) (= |ULTIMATE.start___ieee754_atan2_~y#1| .cse1) (= |ULTIMATE.start___ieee754_atan2_~ix~1#1| (bvand (_ bv2147483647 32) .cse2)))))) (= ~pi_o_4~0 ((_ to_fp 11 53) currentRoundingMode (/ 785398163397448279.0 1000000000000000000.0))) (exists ((|v_skolemized_q#valueAsBitvector_62| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_62|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_62|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_62|)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))) (= |ULTIMATE.start___ieee754_atan2_~hx~1#1| ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_62|)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-25 19:02:05,727 INFO L858 garLoopResultBuilder]: For program point L156-3(lines 156 161) no Hoare annotation was computed. [2021-11-25 19:02:05,727 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 260) no Hoare annotation was computed. [2021-11-25 19:02:05,727 INFO L858 garLoopResultBuilder]: For program point L239(line 239) no Hoare annotation was computed. [2021-11-25 19:02:05,728 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-25 19:02:05,728 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 236) no Hoare annotation was computed. [2021-11-25 19:02:05,728 INFO L858 garLoopResultBuilder]: For program point L198(lines 198 207) no Hoare annotation was computed. [2021-11-25 19:02:05,728 INFO L858 garLoopResultBuilder]: For program point L231-1(lines 224 237) no Hoare annotation was computed. [2021-11-25 19:02:05,728 INFO L858 garLoopResultBuilder]: For program point L231-2(lines 231 236) no Hoare annotation was computed. [2021-11-25 19:02:05,729 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 19:02:05,729 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-11-25 19:02:05,729 INFO L858 garLoopResultBuilder]: For program point L215(lines 215 220) no Hoare annotation was computed. [2021-11-25 19:02:05,729 INFO L858 garLoopResultBuilder]: For program point L149-1(lines 149 154) no Hoare annotation was computed. [2021-11-25 19:02:05,729 INFO L854 garLoopResultBuilder]: At program point L149-2(lines 149 154) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) ~tiny_atan2~0) (exists ((currentRoundingMode RoundingMode)) (let ((.cse0 (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) (and (= |ULTIMATE.start___ieee754_atan2_~x#1| .cse0) (= |ULTIMATE.start___ieee754_atan2_~y#1| .cse0)))) (= ~pi_o_4~0 ((_ to_fp 11 53) currentRoundingMode (/ 785398163397448279.0 1000000000000000000.0))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-25 19:02:05,730 INFO L858 garLoopResultBuilder]: For program point L149-3(lines 149 154) no Hoare annotation was computed. [2021-11-25 19:02:05,730 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-11-25 19:02:05,730 INFO L858 garLoopResultBuilder]: For program point L166(lines 166 167) no Hoare annotation was computed. [2021-11-25 19:02:05,730 INFO L858 garLoopResultBuilder]: For program point L224(line 224) no Hoare annotation was computed. [2021-11-25 19:02:05,730 INFO L858 garLoopResultBuilder]: For program point L183(line 183) no Hoare annotation was computed. [2021-11-25 19:02:05,731 INFO L858 garLoopResultBuilder]: For program point L183-2(line 183) no Hoare annotation was computed. [2021-11-25 19:02:05,731 INFO L858 garLoopResultBuilder]: For program point L241(line 241) no Hoare annotation was computed. [2021-11-25 19:02:05,731 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-11-25 19:02:05,731 INFO L854 garLoopResultBuilder]: At program point L167(line 167) the Hoare annotation is: false [2021-11-25 19:02:05,731 INFO L858 garLoopResultBuilder]: For program point L167-1(line 167) no Hoare annotation was computed. [2021-11-25 19:02:05,736 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:02:05,738 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 19:02:05,748 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,752 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:02:05,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,758 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,758 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:02:05,762 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,762 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,762 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,763 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,763 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,763 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,774 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,774 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,774 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,775 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,775 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,775 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,775 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,776 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,776 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,777 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,777 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,777 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,777 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,777 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:02:05,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,782 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,782 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,782 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,787 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,787 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,787 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,787 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,788 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,788 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,788 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:02:05,790 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:02:05,798 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:02:05,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 07:02:05 BoogieIcfgContainer [2021-11-25 19:02:05,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 19:02:05,801 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 19:02:05,801 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 19:02:05,802 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 19:02:05,802 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:00:00" (3/4) ... [2021-11-25 19:02:05,805 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 19:02:05,814 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2021-11-25 19:02:05,814 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_double [2021-11-25 19:02:05,834 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2021-11-25 19:02:05,835 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-25 19:02:05,836 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-25 19:02:05,837 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 19:02:05,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) && pi_o_4 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/1000000000000000000)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-25 19:02:05,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 && (\exists v_skolemized_q#valueAsBitvector_23 : bv64, v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6 : bv32, currentRoundingMode : FloatRoundingMode :: ((((unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6][0bv32] == lx && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6][0bv32] == v_skolemized_q#valueAsBitvector_23[31:0]) && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_23[63:63], v_skolemized_q#valueAsBitvector_23[62:52], v_skolemized_q#valueAsBitvector_23[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6][4bv32] == v_skolemized_q#valueAsBitvector_23[63:32]) && y == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && ix == ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6][4bv32]))) && pi_o_4 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/1000000000000000000)) && (\exists v_skolemized_q#valueAsBitvector_62 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_62[63:63], v_skolemized_q#valueAsBitvector_62[62:52], v_skolemized_q#valueAsBitvector_62[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) && hx == v_skolemized_q#valueAsBitvector_62[63:32])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-25 19:02:05,866 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 && \result == ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.0)), pi_o_4), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000))) && pi_o_4 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/1000000000000000000)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-25 19:02:05,937 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 19:02:05,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 19:02:05,939 INFO L158 Benchmark]: Toolchain (without parser) took 146888.07ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 39.0MB in the beginning and 54.5MB in the end (delta: -15.5MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2021-11-25 19:02:05,939 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory was 41.5MB in the beginning and 41.5MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:02:05,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 590.44ms. Allocated memory is still 60.8MB. Free memory was 38.8MB in the beginning and 40.1MB in the end (delta: -1.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-25 19:02:05,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.59ms. Allocated memory is still 60.8MB. Free memory was 40.1MB in the beginning and 37.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:02:05,941 INFO L158 Benchmark]: Boogie Preprocessor took 102.61ms. Allocated memory is still 60.8MB. Free memory was 37.8MB in the beginning and 35.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:02:05,941 INFO L158 Benchmark]: RCFGBuilder took 21040.86ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 35.0MB in the beginning and 47.4MB in the end (delta: -12.4MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2021-11-25 19:02:05,942 INFO L158 Benchmark]: TraceAbstraction took 124913.65ms. Allocated memory is still 86.0MB. Free memory was 47.2MB in the beginning and 62.9MB in the end (delta: -15.6MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2021-11-25 19:02:05,944 INFO L158 Benchmark]: Witness Printer took 136.39ms. Allocated memory is still 86.0MB. Free memory was 62.9MB in the beginning and 54.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 19:02:05,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory was 41.5MB in the beginning and 41.5MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 590.44ms. Allocated memory is still 60.8MB. Free memory was 38.8MB in the beginning and 40.1MB in the end (delta: -1.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.59ms. Allocated memory is still 60.8MB. Free memory was 40.1MB in the beginning and 37.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.61ms. Allocated memory is still 60.8MB. Free memory was 37.8MB in the beginning and 35.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 21040.86ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 35.0MB in the beginning and 47.4MB in the end (delta: -12.4MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * TraceAbstraction took 124913.65ms. Allocated memory is still 86.0MB. Free memory was 47.2MB in the beginning and 62.9MB in the end (delta: -15.6MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * Witness Printer took 136.39ms. Allocated memory is still 86.0MB. Free memory was 62.9MB in the beginning and 54.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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: 260]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 124.8s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 60.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 15 mSolverCounterUnknown, 143 SdHoareTripleChecker+Valid, 52.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 4392 SdHoareTripleChecker+Invalid, 50.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 213 IncrementalHoareTripleChecker+Unchecked, 3256 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 76 IncrementalHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 1136 mSDtfsCounter, 76 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 211 GetRequests, 166 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 66, 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, 12 MinimizatonAttempts, 46 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 58 PreInvPairs, 62 NumberOfFragments, 166 HoareAnnotationTreeSize, 58 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 200 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 5.2s SatisfiabilityAnalysisTime, 51.7s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 209 ConstructedInterpolants, 112 QuantifiedInterpolants, 3536 SizeOfPredicates, 94 NumberOfNonLiveVariables, 1736 ConjunctsInSsa, 142 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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: 246]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 149]: Loop Invariant [2021-11-25 19:02:05,967 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,967 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,967 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,967 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,967 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:02:05,968 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,968 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,968 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,968 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,968 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) && pi_o_4 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/1000000000000000000)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 156]: Loop Invariant [2021-11-25 19:02:05,969 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,970 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,970 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,970 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,970 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,970 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,973 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,973 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,973 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:02:05,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_23,QUANTIFIED] [2021-11-25 19:02:05,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6,QUANTIFIED] [2021-11-25 19:02:05,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,978 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:02:05,978 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_62,QUANTIFIED] [2021-11-25 19:02:05,978 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 && (\exists v_skolemized_q#valueAsBitvector_23 : bv64, v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6 : bv32, currentRoundingMode : FloatRoundingMode :: ((((unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6][0bv32] == lx && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6][0bv32] == v_skolemized_q#valueAsBitvector_23[31:0]) && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_23[63:63], v_skolemized_q#valueAsBitvector_23[62:52], v_skolemized_q#valueAsBitvector_23[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6][4bv32] == v_skolemized_q#valueAsBitvector_23[63:32]) && y == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && ix == ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_6][4bv32]))) && pi_o_4 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/1000000000000000000)) && (\exists v_skolemized_q#valueAsBitvector_62 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_62[63:63], v_skolemized_q#valueAsBitvector_62[62:52], v_skolemized_q#valueAsBitvector_62[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) && hx == v_skolemized_q#valueAsBitvector_62[63:32])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 144]: Loop Invariant [2021-11-25 19:02:05,980 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:02:05,980 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 && \result == ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.0)), pi_o_4), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000))) && pi_o_4 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/1000000000000000000)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-25 19:02:06,204 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-25 19:02:06,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a38a1c-f2b1-49c8-8581-d2440347c081/bin/utaipan-eEHZpOm5b7/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