./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0930.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0930.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG --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 8d734d3869a39929ea479cab14eb5865c36aeb805da0fe481c4349ce6c2b3759 ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0930.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG --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 8d734d3869a39929ea479cab14eb5865c36aeb805da0fe481c4349ce6c2b3759 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:41:52,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:41:52,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:41:52,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:41:52,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:41:52,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:41:52,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:41:52,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:41:52,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:41:52,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:41:52,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:41:52,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:41:52,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:41:52,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:41:52,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:41:52,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:41:52,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:41:52,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:41:52,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:41:52,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:41:52,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:41:52,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:41:52,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:41:52,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:41:52,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:41:52,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:41:52,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:41:52,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:41:52,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:41:52,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:41:52,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:41:52,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:41:52,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:41:52,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:41:52,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:41:52,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:41:52,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:41:52,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:41:52,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:41:52,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:41:52,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:41:52,426 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:41:52,456 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:41:52,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:41:52,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:41:52,458 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:41:52,458 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:41:52,458 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:41:52,459 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:41:52,459 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:41:52,460 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:41:52,460 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:41:52,460 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:41:52,461 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:41:52,461 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:41:52,461 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:41:52,462 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:41:52,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:41:52,463 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:41:52,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:41:52,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:41:52,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:41:52,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:41:52,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:41:52,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:41:52,465 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:41:52,465 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:41:52,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:41:52,466 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:41:52,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:41:52,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:41:52,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:41:52,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:41:52,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:41:52,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:41:52,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:41:52,469 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:41:52,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:41:52,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:41:52,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:41:52,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:41:52,471 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_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d734d3869a39929ea479cab14eb5865c36aeb805da0fe481c4349ce6c2b3759 [2021-10-29 05:41:52,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:41:52,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:41:52,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:41:52,753 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:41:52,754 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:41:52,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0930.c [2021-10-29 05:41:52,818 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/data/1066d175d/8d0af25a81c4478b8e86371fd1940ea5/FLAG92b917d0d [2021-10-29 05:41:53,414 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:41:53,421 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/sv-benchmarks/c/float-newlib/double_req_bl_0930.c [2021-10-29 05:41:53,436 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/data/1066d175d/8d0af25a81c4478b8e86371fd1940ea5/FLAG92b917d0d [2021-10-29 05:41:53,772 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/data/1066d175d/8d0af25a81c4478b8e86371fd1940ea5 [2021-10-29 05:41:53,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:41:53,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:41:53,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:41:53,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:41:53,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:41:53,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:41:53" (1/1) ... [2021-10-29 05:41:53,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58096e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:41:53, skipping insertion in model container [2021-10-29 05:41:53,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:41:53" (1/1) ... [2021-10-29 05:41:53,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:41:53,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:41:54,064 WARN L228 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_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/sv-benchmarks/c/float-newlib/double_req_bl_0930.c[3808,3821] [2021-10-29 05:41:54,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:41:54,076 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:41:54,110 WARN L228 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_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/sv-benchmarks/c/float-newlib/double_req_bl_0930.c[3808,3821] [2021-10-29 05:41:54,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:41:54,125 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:41:54,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:41:54 WrapperNode [2021-10-29 05:41:54,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:41:54,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:41:54,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:41:54,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:41:54,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:41:54" (1/1) ... [2021-10-29 05:41:54,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:41:54" (1/1) ... [2021-10-29 05:41:54,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:41:54,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:41:54,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:41:54,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:41:54,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:41:54" (1/1) ... [2021-10-29 05:41:54,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:41:54" (1/1) ... [2021-10-29 05:41:54,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:41:54" (1/1) ... [2021-10-29 05:41:54,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:41:54" (1/1) ... [2021-10-29 05:41:54,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:41:54" (1/1) ... [2021-10-29 05:41:54,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:41:54" (1/1) ... [2021-10-29 05:41:54,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:41:54" (1/1) ... [2021-10-29 05:41:54,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:41:54,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:41:54,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:41:54,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:41:54,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:41:54" (1/1) ... [2021-10-29 05:41:54,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:41:54,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:41:54,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:41:54,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:41:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:41:54,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:41:54,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-29 05:41:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:41:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-29 05:41:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:41:54,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:41:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 05:41:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:41:54,871 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:41:54,871 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-29 05:41:54,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:41:54 BoogieIcfgContainer [2021-10-29 05:41:54,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:41:54,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:41:54,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:41:54,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:41:54,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:41:53" (1/3) ... [2021-10-29 05:41:54,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea2a94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:41:54, skipping insertion in model container [2021-10-29 05:41:54,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:41:54" (2/3) ... [2021-10-29 05:41:54,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea2a94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:41:54, skipping insertion in model container [2021-10-29 05:41:54,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:41:54" (3/3) ... [2021-10-29 05:41:54,882 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0930.c [2021-10-29 05:41:54,887 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:41:54,902 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:41:54,970 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:41:54,978 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 [2021-10-29 05:41:54,979 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:41:54,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 22 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:41:55,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 05:41:55,011 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:41:55,012 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:41:55,012 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:41:55,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:41:55,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1397259804, now seen corresponding path program 1 times [2021-10-29 05:41:55,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:41:55,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387142604] [2021-10-29 05:41:55,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:41:55,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:41:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:41:55,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:41:55,245 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:41:55,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387142604] [2021-10-29 05:41:55,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387142604] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:41:55,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:41:55,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:41:55,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550587162] [2021-10-29 05:41:55,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:41:55,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:41:55,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:41:55,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:41:55,279 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 22 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2021-10-29 05:41:55,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:41:55,297 INFO L93 Difference]: Finished difference Result 45 states and 71 transitions. [2021-10-29 05:41:55,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:41:55,299 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 [2021-10-29 05:41:55,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:41:55,308 INFO L225 Difference]: With dead ends: 45 [2021-10-29 05:41:55,308 INFO L226 Difference]: Without dead ends: 21 [2021-10-29 05:41:55,311 INFO L786 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 [2021-10-29 05:41:55,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-29 05:41:55,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-10-29 05:41:55,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 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) [2021-10-29 05:41:55,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-10-29 05:41:55,347 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 9 [2021-10-29 05:41:55,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:41:55,348 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-10-29 05:41:55,348 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) [2021-10-29 05:41:55,348 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-10-29 05:41:55,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:41:55,349 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:41:55,349 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:41:55,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:41:55,350 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:41:55,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:41:55,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1483401345, now seen corresponding path program 1 times [2021-10-29 05:41:55,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:41:55,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015151262] [2021-10-29 05:41:55,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:41:55,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:41:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:41:55,393 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:41:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:41:55,455 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:41:55,455 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:41:55,457 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:41:55,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:41:55,462 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 05:41:55,465 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:41:55,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:41:55 BoogieIcfgContainer [2021-10-29 05:41:55,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:41:55,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:41:55,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:41:55,498 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:41:55,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:41:54" (3/4) ... [2021-10-29 05:41:55,502 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:41:55,502 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:41:55,504 INFO L168 Benchmark]: Toolchain (without parser) took 1724.71 ms. Allocated memory was 115.3 MB in the beginning and 146.8 MB in the end (delta: 31.5 MB). Free memory was 86.2 MB in the beginning and 103.4 MB in the end (delta: -17.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:41:55,504 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 115.3 MB. Free memory is still 70.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:41:55,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.55 ms. Allocated memory is still 115.3 MB. Free memory was 86.0 MB in the beginning and 88.1 MB in the end (delta: -2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:41:55,506 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.18 ms. Allocated memory is still 115.3 MB. Free memory was 88.1 MB in the beginning and 86.0 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:41:55,507 INFO L168 Benchmark]: Boogie Preprocessor took 66.39 ms. Allocated memory is still 115.3 MB. Free memory was 86.0 MB in the beginning and 84.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:41:55,507 INFO L168 Benchmark]: RCFGBuilder took 607.04 ms. Allocated memory is still 115.3 MB. Free memory was 84.4 MB in the beginning and 66.0 MB in the end (delta: 18.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:41:55,508 INFO L168 Benchmark]: TraceAbstraction took 622.25 ms. Allocated memory was 115.3 MB in the beginning and 146.8 MB in the end (delta: 31.5 MB). Free memory was 65.5 MB in the beginning and 104.1 MB in the end (delta: -38.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:41:55,508 INFO L168 Benchmark]: Witness Printer took 4.16 ms. Allocated memory is still 146.8 MB. Free memory was 104.1 MB in the beginning and 103.4 MB in the end (delta: 660.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:41:55,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 115.3 MB. Free memory is still 70.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 339.55 ms. Allocated memory is still 115.3 MB. Free memory was 86.0 MB in the beginning and 88.1 MB in the end (delta: -2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.18 ms. Allocated memory is still 115.3 MB. Free memory was 88.1 MB in the beginning and 86.0 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.39 ms. Allocated memory is still 115.3 MB. Free memory was 86.0 MB in the beginning and 84.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 607.04 ms. Allocated memory is still 115.3 MB. Free memory was 84.4 MB in the beginning and 66.0 MB in the end (delta: 18.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 622.25 ms. Allocated memory was 115.3 MB in the beginning and 146.8 MB in the end (delta: 31.5 MB). Free memory was 65.5 MB in the beginning and 104.1 MB in the end (delta: -38.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.16 ms. Allocated memory is still 146.8 MB. Free memory was 104.1 MB in the beginning and 103.4 MB in the end (delta: 660.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * 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: 152]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 151, overapproximation of bitwiseOr at line 61, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L146] double x = 1.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L148] double res = __ieee754_log(x); [L151] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L151] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L152] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, 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=23occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 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 [2021-10-29 05:41:55,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:41:57,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:41:57,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:41:58,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:41:58,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:41:58,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:41:58,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:41:58,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:41:58,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:41:58,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:41:58,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:41:58,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:41:58,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:41:58,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:41:58,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:41:58,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:41:58,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:41:58,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:41:58,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:41:58,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:41:58,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:41:58,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:41:58,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:41:58,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:41:58,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:41:58,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:41:58,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:41:58,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:41:58,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:41:58,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:41:58,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:41:58,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:41:58,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:41:58,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:41:58,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:41:58,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:41:58,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:41:58,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:41:58,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:41:58,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:41:58,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:41:58,130 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:41:58,172 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:41:58,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:41:58,174 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:41:58,174 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:41:58,174 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:41:58,175 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:41:58,175 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:41:58,175 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:41:58,176 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:41:58,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:41:58,178 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:41:58,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:41:58,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:41:58,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:41:58,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:41:58,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:41:58,180 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:41:58,180 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:41:58,180 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:41:58,180 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:41:58,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:41:58,181 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:41:58,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:41:58,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:41:58,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:41:58,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:41:58,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:41:58,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:41:58,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:41:58,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:41:58,183 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:41:58,183 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:41:58,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:41:58,184 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:41:58,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:41:58,185 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_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d734d3869a39929ea479cab14eb5865c36aeb805da0fe481c4349ce6c2b3759 [2021-10-29 05:41:58,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:41:58,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:41:58,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:41:58,651 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:41:58,652 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:41:58,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0930.c [2021-10-29 05:41:58,742 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/data/ba8ff3460/f26f140cf29743bea7f89107d8a448df/FLAGd9806d5ab [2021-10-29 05:41:59,467 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:41:59,468 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/sv-benchmarks/c/float-newlib/double_req_bl_0930.c [2021-10-29 05:41:59,480 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/data/ba8ff3460/f26f140cf29743bea7f89107d8a448df/FLAGd9806d5ab [2021-10-29 05:41:59,757 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/data/ba8ff3460/f26f140cf29743bea7f89107d8a448df [2021-10-29 05:41:59,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:41:59,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:41:59,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:41:59,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:41:59,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:41:59,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:41:59" (1/1) ... [2021-10-29 05:41:59,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ca5aa08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:41:59, skipping insertion in model container [2021-10-29 05:41:59,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:41:59" (1/1) ... [2021-10-29 05:41:59,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:41:59,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:42:00,006 WARN L228 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_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/sv-benchmarks/c/float-newlib/double_req_bl_0930.c[3808,3821] [2021-10-29 05:42:00,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:42:00,028 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:42:00,107 WARN L228 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_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/sv-benchmarks/c/float-newlib/double_req_bl_0930.c[3808,3821] [2021-10-29 05:42:00,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:42:00,145 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:42:00,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:42:00 WrapperNode [2021-10-29 05:42:00,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:42:00,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:42:00,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:42:00,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:42:00,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:42:00" (1/1) ... [2021-10-29 05:42:00,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:42:00" (1/1) ... [2021-10-29 05:42:00,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:42:00,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:42:00,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:42:00,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:42:00,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:42:00" (1/1) ... [2021-10-29 05:42:00,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:42:00" (1/1) ... [2021-10-29 05:42:00,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:42:00" (1/1) ... [2021-10-29 05:42:00,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:42:00" (1/1) ... [2021-10-29 05:42:00,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:42:00" (1/1) ... [2021-10-29 05:42:00,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:42:00" (1/1) ... [2021-10-29 05:42:00,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:42:00" (1/1) ... [2021-10-29 05:42:00,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:42:00,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:42:00,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:42:00,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:42:00,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:42:00" (1/1) ... [2021-10-29 05:42:00,354 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:42:00,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:42:00,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:42:00,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:42:00,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-29 05:42:00,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-29 05:42:00,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:42:00,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:42:00,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 05:42:00,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:42:00,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:42:00,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 05:42:00,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:42:25,256 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:42:25,256 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-29 05:42:25,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:42:25 BoogieIcfgContainer [2021-10-29 05:42:25,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:42:25,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:42:25,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:42:25,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:42:25,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:41:59" (1/3) ... [2021-10-29 05:42:25,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723a48c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:42:25, skipping insertion in model container [2021-10-29 05:42:25,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:42:00" (2/3) ... [2021-10-29 05:42:25,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723a48c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:42:25, skipping insertion in model container [2021-10-29 05:42:25,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:42:25" (3/3) ... [2021-10-29 05:42:25,269 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0930.c [2021-10-29 05:42:25,276 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:42:25,276 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:42:25,328 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:42:25,335 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 [2021-10-29 05:42:25,335 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:42:25,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 32 states have internal predecessors, (53), 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) [2021-10-29 05:42:25,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:42:25,354 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:42:25,355 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:42:25,356 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:42:25,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:42:25,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1030213693, now seen corresponding path program 1 times [2021-10-29 05:42:25,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:42:25,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737702013] [2021-10-29 05:42:25,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:42:25,374 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:42:25,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:42:25,376 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:42:25,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:42:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:42:26,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:42:26,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:42:26,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:42:26,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:42:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:42:26,650 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:42:26,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737702013] [2021-10-29 05:42:26,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737702013] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:42:26,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:42:26,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:42:26,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095579192] [2021-10-29 05:42:26,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:42:26,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:42:26,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:42:26,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:42:26,675 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 32 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:42:26,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:42:26,690 INFO L93 Difference]: Finished difference Result 64 states and 104 transitions. [2021-10-29 05:42:26,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:42:26,692 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 [2021-10-29 05:42:26,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:42:26,701 INFO L225 Difference]: With dead ends: 64 [2021-10-29 05:42:26,701 INFO L226 Difference]: Without dead ends: 30 [2021-10-29 05:42:26,704 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:42:26,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-29 05:42:26,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-29 05:42:26,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 29 states have internal predecessors, (41), 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) [2021-10-29 05:42:26,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2021-10-29 05:42:26,749 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 41 transitions. Word has length 10 [2021-10-29 05:42:26,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:42:26,749 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 41 transitions. [2021-10-29 05:42:26,749 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) [2021-10-29 05:42:26,750 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2021-10-29 05:42:26,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 05:42:26,750 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:42:26,750 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:42:26,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:42:26,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:42:26,951 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:42:26,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:42:26,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1305093504, now seen corresponding path program 1 times [2021-10-29 05:42:26,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:42:26,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951430402] [2021-10-29 05:42:26,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:42:26,954 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:42:26,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:42:26,956 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:42:26,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:42:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:42:27,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:42:27,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:42:28,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:42:28,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:42:29,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:42:29,333 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:42:29,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [951430402] [2021-10-29 05:42:29,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [951430402] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:42:29,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:42:29,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:42:29,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759541368] [2021-10-29 05:42:29,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:42:29,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:42:29,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:42:29,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:42:29,339 INFO L87 Difference]: Start difference. First operand 30 states and 41 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:42:33,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:42:33,477 INFO L93 Difference]: Finished difference Result 50 states and 69 transitions. [2021-10-29 05:42:33,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:42:33,965 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-29 05:42:33,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:42:33,966 INFO L225 Difference]: With dead ends: 50 [2021-10-29 05:42:33,966 INFO L226 Difference]: Without dead ends: 26 [2021-10-29 05:42:33,967 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:42:33,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-29 05:42:33,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-29 05:42:33,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:42:33,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-10-29 05:42:33,973 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 11 [2021-10-29 05:42:33,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:42:33,973 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-10-29 05:42:33,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:42:33,974 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-10-29 05:42:33,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 05:42:33,975 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:42:33,975 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:42:34,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-29 05:42:34,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:42:34,191 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:42:34,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:42:34,191 INFO L85 PathProgramCache]: Analyzing trace with hash 464469069, now seen corresponding path program 1 times [2021-10-29 05:42:34,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:42:34,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620680659] [2021-10-29 05:42:34,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:42:34,193 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:42:34,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:42:34,194 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:42:34,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:42:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:42:34,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:42:34,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:42:35,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:42:35,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:42:36,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:42:36,328 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:42:36,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620680659] [2021-10-29 05:42:36,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620680659] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:42:36,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:42:36,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:42:36,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611704731] [2021-10-29 05:42:36,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 05:42:36,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:42:36,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 05:42:36,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:42:36,332 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-10-29 05:43:05,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:43:05,730 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2021-10-29 05:43:05,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:43:05,731 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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 [2021-10-29 05:43:05,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:43:05,732 INFO L225 Difference]: With dead ends: 47 [2021-10-29 05:43:05,732 INFO L226 Difference]: Without dead ends: 44 [2021-10-29 05:43:05,733 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:43:05,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-29 05:43:05,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2021-10-29 05:43:05,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:43:05,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2021-10-29 05:43:05,738 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 17 [2021-10-29 05:43:05,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:43:05,738 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2021-10-29 05:43:05,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-10-29 05:43:05,739 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2021-10-29 05:43:05,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 05:43:05,739 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:43:05,740 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:43:05,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:43:05,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:43:05,942 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:43:05,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:43:05,943 INFO L85 PathProgramCache]: Analyzing trace with hash 466316111, now seen corresponding path program 1 times [2021-10-29 05:43:05,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:43:05,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677345328] [2021-10-29 05:43:05,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:43:05,946 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:43:05,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:43:05,948 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:43:05,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 05:43:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:43:06,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 05:43:06,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:43:09,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:09,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:43:12,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:12,079 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:43:12,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677345328] [2021-10-29 05:43:12,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677345328] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:43:12,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:43:12,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-29 05:43:12,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255700114] [2021-10-29 05:43:12,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-29 05:43:12,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:43:12,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-29 05:43:12,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-10-29 05:43:12,084 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 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) [2021-10-29 05:44:03,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:44:03,112 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2021-10-29 05:44:03,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:44:03,175 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 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 [2021-10-29 05:44:03,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:44:03,176 INFO L225 Difference]: With dead ends: 46 [2021-10-29 05:44:03,176 INFO L226 Difference]: Without dead ends: 37 [2021-10-29 05:44:03,176 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-10-29 05:44:03,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-29 05:44:03,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 28. [2021-10-29 05:44:03,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:44:03,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2021-10-29 05:44:03,181 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 17 [2021-10-29 05:44:03,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:44:03,182 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-10-29 05:44:03,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 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) [2021-10-29 05:44:03,183 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-10-29 05:44:03,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 05:44:03,184 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:44:03,184 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:44:03,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:44:03,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:44:03,386 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:44:03,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:44:03,387 INFO L85 PathProgramCache]: Analyzing trace with hash 671337773, now seen corresponding path program 1 times [2021-10-29 05:44:03,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:44:03,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944873643] [2021-10-29 05:44:03,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:44:03,388 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:44:03,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:44:03,389 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:44:03,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 05:44:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:44:04,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-29 05:44:04,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:44:05,408 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 33 treesize of output 33 [2021-10-29 05:44:09,526 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:44:09,527 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 207 treesize of output 181 [2021-10-29 05:44:09,821 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 79 treesize of output 63 [2021-10-29 05:44:11,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:44:11,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:44:42,827 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:44:42,828 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 197 treesize of output 176 [2021-10-29 05:44:43,161 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:44:43,162 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 176 treesize of output 174 [2021-10-29 05:44:43,898 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 15 treesize of output 11 [2021-10-29 05:44:56,703 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-29 05:44:56,706 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:44:56,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944873643] [2021-10-29 05:44:56,707 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-10-29 05:44:56,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1264301922] [2021-10-29 05:44:56,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:44:56,708 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:44:56,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:44:56,710 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:44:56,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-29 05:44:56,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-29 05:44:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:44:59,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-29 05:44:59,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@3a2fb88 [2021-10-29 05:44:59,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269968159] [2021-10-29 05:44:59,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:44:59,586 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:44:59,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:44:59,587 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:44:59,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-29 05:45:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:45:00,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 05:45:00,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@3a2fb88 [2021-10-29 05:45:00,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:45:00,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-29 05:45:00,326 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-29 05:45:00,327 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-29 05:45:00,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:45:00,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-10-29 05:45:00,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:45:00,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-29 05:45:00,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bd9bd50-0c26-4025-b98d-d67e4d0d33a8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:45:00,939 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-10-29 05:45:00,940 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:45:00,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:45:00 BoogieIcfgContainer [2021-10-29 05:45:00,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:45:00,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:45:00,954 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:45:00,954 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:45:00,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:42:25" (3/4) ... [2021-10-29 05:45:00,958 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:45:00,958 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:45:00,959 INFO L168 Benchmark]: Toolchain (without parser) took 181185.85 ms. Allocated memory is still 75.5 MB. Free memory was 56.3 MB in the beginning and 45.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:45:00,959 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 75.5 MB. Free memory is still 55.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:45:00,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.74 ms. Allocated memory is still 75.5 MB. Free memory was 56.2 MB in the beginning and 43.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:45:00,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.67 ms. Allocated memory is still 75.5 MB. Free memory was 43.0 MB in the beginning and 40.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:45:00,961 INFO L168 Benchmark]: Boogie Preprocessor took 100.43 ms. Allocated memory is still 75.5 MB. Free memory was 40.9 MB in the beginning and 39.1 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:45:00,961 INFO L168 Benchmark]: RCFGBuilder took 24914.50 ms. Allocated memory is still 75.5 MB. Free memory was 39.0 MB in the beginning and 45.7 MB in the end (delta: -6.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:45:00,962 INFO L168 Benchmark]: TraceAbstraction took 155692.06 ms. Allocated memory is still 75.5 MB. Free memory was 45.4 MB in the beginning and 46.1 MB in the end (delta: -673.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:45:00,962 INFO L168 Benchmark]: Witness Printer took 4.33 ms. Allocated memory is still 75.5 MB. Free memory was 46.1 MB in the beginning and 45.9 MB in the end (delta: 180.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:45:00,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 75.5 MB. Free memory is still 55.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 368.74 ms. Allocated memory is still 75.5 MB. Free memory was 56.2 MB in the beginning and 43.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.67 ms. Allocated memory is still 75.5 MB. Free memory was 43.0 MB in the beginning and 40.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 100.43 ms. Allocated memory is still 75.5 MB. Free memory was 40.9 MB in the beginning and 39.1 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 24914.50 ms. Allocated memory is still 75.5 MB. Free memory was 39.0 MB in the beginning and 45.7 MB in the end (delta: -6.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 155692.06 ms. Allocated memory is still 75.5 MB. Free memory was 45.4 MB in the beginning and 46.1 MB in the end (delta: -673.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.33 ms. Allocated memory is still 75.5 MB. Free memory was 46.1 MB in the beginning and 45.9 MB in the end (delta: 180.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * 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: 152]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L146] double x = 1.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 [L60] COND FALSE !(hx < 0x00100000) [L73] COND FALSE !(hx >= 0x7ff00000) [L75] k += (hx >> 20) - 1023 [L76] hx &= 0x000fffff [L77] i = (hx + 0x95f64) & 0x100000 [L79] ieee_double_shape_type sh_u; [L80] sh_u.value = (x) [L81] sh_u.parts.msw = (hx | (i ^ 0x3ff00000)) [L82] EXPR sh_u.value [L82] (x) = sh_u.value [L84] k += (i >> 20) [L85] f = x - 1.0 [L86] COND TRUE (0x000fffff & (2 + hx)) < 3 [L87] COND FALSE !(f == zero) [L95] R = f * f * (0.5 - 0.33333333333333333 * f) [L96] COND TRUE k == 0 [L97] return f - R; [L148] double res = __ieee754_log(x); [L151] EXPR res == 0.0 && __signbit_double(res) == 0 [L151] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L152] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 155.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 85.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 126 SDtfs, 69 SDslu, 329 SDs, 0 SdLazy, 94 SolverSat, 10 SolverUnsat, 36 SolverUnknown, 0 SolverNotchecked, 81.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 4 MinimizatonAttempts, 25 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 61.2s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 118 ConstructedInterpolants, 22 QuantifiedInterpolants, 917 SizeOfPredicates, 28 NumberOfNonLiveVariables, 322 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 Received shutdown request...