./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0220b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0220b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF --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 9b72ffef78e797287b5bc98eb96d44304e95eeea6df503cfbba3a5fc6983ef3a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:30:40,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:30:40,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:30:40,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:30:40,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:30:40,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:30:40,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:30:40,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:30:40,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:30:40,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:30:40,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:30:40,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:30:40,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:30:40,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:30:40,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:30:40,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:30:40,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:30:40,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:30:40,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:30:40,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:30:40,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:30:40,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:30:40,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:30:40,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:30:40,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:30:40,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:30:40,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:30:40,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:30:40,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:30:40,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:30:40,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:30:40,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:30:40,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:30:40,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:30:40,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:30:40,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:30:40,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:30:40,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:30:40,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:30:40,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:30:40,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:30:40,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 01:30:40,653 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:30:40,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:30:40,656 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:30:40,656 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:30:40,656 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:30:40,657 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:30:40,657 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:30:40,657 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:30:40,665 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:30:40,665 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:30:40,666 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:30:40,667 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:30:40,667 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:30:40,667 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:30:40,668 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:30:40,668 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:30:40,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:30:40,670 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:30:40,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:30:40,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:30:40,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:30:40,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:30:40,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:30:40,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:30:40,672 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:30:40,673 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:30:40,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:30:40,673 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:30:40,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:30:40,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:30:40,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:30:40,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:30:40,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:30:40,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:30:40,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:30:40,676 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:30:40,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:30:40,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:30:40,677 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:30:40,678 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:30:40,678 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_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b72ffef78e797287b5bc98eb96d44304e95eeea6df503cfbba3a5fc6983ef3a [2021-11-13 01:30:41,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:30:41,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:30:41,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:30:41,090 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:30:41,091 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:30:41,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/double_req_bl_0220b.c [2021-11-13 01:30:41,170 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/data/97c178c43/9a8f9f1d094f447284556f8e6d65ff6e/FLAGf89226779 [2021-11-13 01:30:41,719 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:30:41,720 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/sv-benchmarks/c/float-newlib/double_req_bl_0220b.c [2021-11-13 01:30:41,752 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/data/97c178c43/9a8f9f1d094f447284556f8e6d65ff6e/FLAGf89226779 [2021-11-13 01:30:42,049 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/data/97c178c43/9a8f9f1d094f447284556f8e6d65ff6e [2021-11-13 01:30:42,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:30:42,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:30:42,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:30:42,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:30:42,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:30:42,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:42" (1/1) ... [2021-11-13 01:30:42,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42080c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:42, skipping insertion in model container [2021-11-13 01:30:42,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:42" (1/1) ... [2021-11-13 01:30:42,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:30:42,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:30:42,526 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_0d1c4be8-ae86-4249-a4f6-611a523f5c20/sv-benchmarks/c/float-newlib/double_req_bl_0220b.c[16494,16507] [2021-11-13 01:30:42,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:30:42,551 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:30:42,697 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_0d1c4be8-ae86-4249-a4f6-611a523f5c20/sv-benchmarks/c/float-newlib/double_req_bl_0220b.c[16494,16507] [2021-11-13 01:30:42,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:30:42,740 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:30:42,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:42 WrapperNode [2021-11-13 01:30:42,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:30:42,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:30:42,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:30:42,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:30:42,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:42" (1/1) ... [2021-11-13 01:30:42,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:42" (1/1) ... [2021-11-13 01:30:42,909 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:30:42,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:30:42,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:30:42,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:30:42,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:42" (1/1) ... [2021-11-13 01:30:42,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:42" (1/1) ... [2021-11-13 01:30:42,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:42" (1/1) ... [2021-11-13 01:30:42,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:42" (1/1) ... [2021-11-13 01:30:43,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:42" (1/1) ... [2021-11-13 01:30:43,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:42" (1/1) ... [2021-11-13 01:30:43,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:42" (1/1) ... [2021-11-13 01:30:43,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:30:43,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:30:43,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:30:43,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:30:43,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:42" (1/1) ... [2021-11-13 01:30:43,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:30:43,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:30:43,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:30:43,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:30:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_double [2021-11-13 01:30:43,216 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_double [2021-11-13 01:30:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2021-11-13 01:30:43,216 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2021-11-13 01:30:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 01:30:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cos [2021-11-13 01:30:43,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cos [2021-11-13 01:30:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:30:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-13 01:30:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 01:30:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-13 01:30:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:30:43,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:30:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 01:30:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-13 01:30:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sin [2021-11-13 01:30:43,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sin [2021-11-13 01:30:43,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:30:45,090 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:30:45,091 INFO L299 CfgBuilder]: Removed 65 assume(true) statements. [2021-11-13 01:30:45,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:30:45 BoogieIcfgContainer [2021-11-13 01:30:45,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:30:45,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:30:45,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:30:45,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:30:45,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:30:42" (1/3) ... [2021-11-13 01:30:45,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef5abd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:30:45, skipping insertion in model container [2021-11-13 01:30:45,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:42" (2/3) ... [2021-11-13 01:30:45,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef5abd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:30:45, skipping insertion in model container [2021-11-13 01:30:45,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:30:45" (3/3) ... [2021-11-13 01:30:45,105 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0220b.c [2021-11-13 01:30:45,115 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:30:45,115 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:30:45,176 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:30:45,184 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 01:30:45,184 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:30:45,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 160 states have (on average 1.69375) internal successors, (271), 161 states have internal predecessors, (271), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-13 01:30:45,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 01:30:45,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:30:45,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:30:45,218 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:30:45,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:30:45,224 INFO L85 PathProgramCache]: Analyzing trace with hash -450420283, now seen corresponding path program 1 times [2021-11-13 01:30:45,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:30:45,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795643824] [2021-11-13 01:30:45,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:30:45,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:30:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:30:45,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:30:45,648 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:30:45,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795643824] [2021-11-13 01:30:45,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795643824] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:30:45,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:30:45,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:30:45,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408832557] [2021-11-13 01:30:45,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:30:45,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:30:45,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:30:45,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:30:45,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:30:45,705 INFO L87 Difference]: Start difference. First operand has 178 states, 160 states have (on average 1.69375) internal successors, (271), 161 states have internal predecessors, (271), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:30:45,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:30:45,949 INFO L93 Difference]: Finished difference Result 355 states and 601 transitions. [2021-11-13 01:30:45,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:30:45,952 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-13 01:30:45,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:30:45,968 INFO L225 Difference]: With dead ends: 355 [2021-11-13 01:30:45,968 INFO L226 Difference]: Without dead ends: 176 [2021-11-13 01:30:45,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:30:45,985 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 118.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.74ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 142.49ms IncrementalHoareTripleChecker+Time [2021-11-13 01:30:45,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 194 Invalid, 53 Unknown, 0 Unchecked, 5.74ms Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 142.49ms Time] [2021-11-13 01:30:46,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-11-13 01:30:46,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2021-11-13 01:30:46,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 159 states have (on average 1.389937106918239) internal successors, (221), 159 states have internal predecessors, (221), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-13 01:30:46,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 245 transitions. [2021-11-13 01:30:46,079 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 245 transitions. Word has length 9 [2021-11-13 01:30:46,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:30:46,079 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 245 transitions. [2021-11-13 01:30:46,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:30:46,080 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 245 transitions. [2021-11-13 01:30:46,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 01:30:46,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:30:46,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:30:46,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:30:46,083 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:30:46,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:30:46,086 INFO L85 PathProgramCache]: Analyzing trace with hash 142076331, now seen corresponding path program 1 times [2021-11-13 01:30:46,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:30:46,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742498790] [2021-11-13 01:30:46,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:30:46,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:30:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:30:46,268 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 01:30:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:30:46,438 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-13 01:30:46,438 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 01:30:46,439 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:30:46,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 01:30:46,445 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-13 01:30:46,448 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:30:46,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:30:46 BoogieIcfgContainer [2021-11-13 01:30:46,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:30:46,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:30:46,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:30:46,517 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:30:46,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:30:45" (3/4) ... [2021-11-13 01:30:46,521 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 01:30:46,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:30:46,523 INFO L158 Benchmark]: Toolchain (without parser) took 4467.25ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 48.3MB in the beginning and 42.9MB in the end (delta: 5.4MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. [2021-11-13 01:30:46,523 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 86.0MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:30:46,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 667.24ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 48.1MB in the beginning and 78.3MB in the end (delta: -30.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:30:46,525 INFO L158 Benchmark]: Boogie Procedure Inliner took 167.08ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 72.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 01:30:46,526 INFO L158 Benchmark]: Boogie Preprocessor took 190.93ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 65.7MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 01:30:46,526 INFO L158 Benchmark]: RCFGBuilder took 1992.58ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 57.6MB in the end (delta: 8.0MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2021-11-13 01:30:46,527 INFO L158 Benchmark]: TraceAbstraction took 1419.19ms. Allocated memory is still 117.4MB. Free memory was 56.9MB in the beginning and 43.7MB in the end (delta: 13.2MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-11-13 01:30:46,528 INFO L158 Benchmark]: Witness Printer took 4.87ms. Allocated memory is still 117.4MB. Free memory was 43.7MB in the beginning and 42.9MB in the end (delta: 788.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:30:46,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 86.0MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 667.24ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 48.1MB in the beginning and 78.3MB in the end (delta: -30.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 167.08ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 72.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 190.93ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 65.7MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1992.58ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 57.6MB in the end (delta: 8.0MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1419.19ms. Allocated memory is still 117.4MB. Free memory was 56.9MB in the beginning and 43.7MB in the end (delta: 13.2MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Witness Printer took 4.87ms. Allocated memory is still 117.4MB. Free memory was 43.7MB in the beginning and 42.9MB in the end (delta: 788.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 655]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 542, overapproximation of bitwiseAnd at line 622, overapproximation of someBinaryArithmeticDOUBLEoperation at line 626, overapproximation of someBinaryDOUBLEComparisonOperation at line 654. Possible FailurePath: [L22] static const double huge_floor = 1.0e300; [L119-L121] static const double two54_scalbn = 1.80143985094819840000e+16, twom54_scalbn = 5.55111512312578270212e-17, huge_scalbn = 1.0e+300, tiny_scalbn = 1.0e-300; [L190] static const int init_jk_krempio[] = {2, 3, 4, 6}; [L192-L197] static const double PIo2_krempio[] = { 1.57079625129699707031e+00, 7.54978941586159635335e-08, 5.39030252995776476554e-15, 3.28200341580791294123e-22, 1.27065575308067607349e-29, 1.22933308981111328932e-36, 2.73370053816464559624e-44, 2.16741683877804819444e-51, }; [L199-L201] static const double zero_krempio = 0.0, one_krempio = 1.0, two24_krempio = 1.67772160000000000000e+07, twon24_krempio = 5.96046447753906250000e-08; [L376-L387] static const __int32_t two_over_pi_rempio[] = { 0xA2F983, 0x6E4E44, 0x1529FC, 0x2757D1, 0xF534DD, 0xC0DB62, 0x95993C, 0x439041, 0xFE5163, 0xABDEBB, 0xC561B7, 0x246E3A, 0x424DD2, 0xE00649, 0x2EEA09, 0xD1921C, 0xFE1DEB, 0x1CB129, 0xA73EE8, 0x8235F5, 0x2EBB44, 0x84E99C, 0x7026B4, 0x5F7E41, 0x3991D6, 0x398353, 0x39F49C, 0x845F8B, 0xBDF928, 0x3B1FF8, 0x97FFDE, 0x05980F, 0xEF2F11, 0x8B5A0A, 0x6D1F6D, 0x367ECF, 0x27CB09, 0xB74F46, 0x3F669E, 0x5FEA2D, 0x7527BA, 0xC7EBE5, 0xF17B3D, 0x0739F7, 0x8A5292, 0xEA6BFB, 0x5FB11F, 0x8D5D08, 0x560330, 0x46FC7B, 0x6BABF0, 0xCFBC20, 0x9AF436, 0x1DA9E3, 0x91615E, 0xE61B08, 0x659985, 0x5F14A0, 0x68408D, 0xFFD880, 0x4D7327, 0x310606, 0x1556CA, 0x73A8C9, 0x60E27B, 0xC08C6B, }; [L389-L396] static const __int32_t npio2_hw_rempio[] = { 0x3FF921FB, 0x400921FB, 0x4012D97C, 0x401921FB, 0x401F6A7A, 0x4022D97C, 0x4025FDBB, 0x402921FB, 0x402C463A, 0x402F6A7A, 0x4031475C, 0x4032D97C, 0x40346B9C, 0x4035FDBB, 0x40378FDB, 0x403921FB, 0x403AB41B, 0x403C463A, 0x403DD85A, 0x403F6A7A, 0x40407E4C, 0x4041475C, 0x4042106C, 0x4042D97C, 0x4043A28C, 0x40446B9C, 0x404534AC, 0x4045FDBB, 0x4046C6CB, 0x40478FDB, 0x404858EB, 0x404921FB, }; [L398-L407] static const double zero_rempio = 0.00000000000000000000e+00, half_rempio = 5.00000000000000000000e-01, two24_rempio = 1.67772160000000000000e+07, invpio2_rempio = 6.36619772367581382433e-01, pio2_1_rempio = 1.57079632673412561417e+00, pio2_1t_rempio = 6.07710050650619224932e-11, pio2_2_rempio = 6.07710050630396597660e-11, pio2_2t_rempio = 2.02226624879595063154e-21, pio2_3_rempio = 2.02226624871116645580e-21, pio2_3t_rempio = 8.47842766036889956997e-32; [L540-L546] static const double one_kcos = 1.00000000000000000000e+00, C1_kcos = 4.16666666666666019037e-02, C2_kcos = -1.38888888888741095749e-03, C3_kcos = 2.48015872894767294178e-05, C4_kcos = -2.75573143513906633035e-07, C5_kcos = 2.08757232129817482790e-09, C6_kcos = -1.13596475577881948265e-11; [L584-L590] static const double half_ksin = 5.00000000000000000000e-01, S1_ksin = -1.66666666666666324348e-01, S2_ksin = 8.33333333332248946124e-03, S3_ksin = -1.98412698298579493134e-04, S4_ksin = 2.75573137070700676789e-06, S5_ksin = -2.50507602534068634195e-08, S6_ksin = 1.58969099521155010221e-10; [L650] double x = -0.0; [L651] CALL, EXPR sin_double(x) [L615] double y[2], z = 0.0; [L616] __int32_t n, ix; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, C1_kcos=416666666666666019037/10000000000000000000000, C3_kcos=124007936447383647089/5000000000000000000000000, C5_kcos=20875723212981748279/10000000000000000000000000000, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={11:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={14:0}, one_kcos=1, one_krempio=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={7:0}, S2_ksin=208333333333062236531/25000000000000000000000, S4_ksin=275573137070700676789/100000000000000000000000000, S6_ksin=158969099521155010221/1000000000000000000000000000000, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={17:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, y={9:0}, z=0, zero_krempio=0, zero_rempio=0] [L618] ieee_double_shape_type gh_u; [L619] gh_u.value = (x) [L620] EXPR gh_u.parts.msw [L620] (ix) = gh_u.parts.msw [L622] ix &= 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, C1_kcos=416666666666666019037/10000000000000000000000, C3_kcos=124007936447383647089/5000000000000000000000000, C5_kcos=20875723212981748279/10000000000000000000000000000, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={11:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={14:0}, one_kcos=1, one_krempio=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={7:0}, S2_ksin=208333333333062236531/25000000000000000000000, S4_ksin=275573137070700676789/100000000000000000000000000, S6_ksin=158969099521155010221/1000000000000000000000000000000, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={17:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, y={9:0}, z=0, zero_krempio=0, zero_rempio=0] [L623] COND FALSE !(ix <= 0x3fe921fb) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, C1_kcos=416666666666666019037/10000000000000000000000, C3_kcos=124007936447383647089/5000000000000000000000000, C5_kcos=20875723212981748279/10000000000000000000000000000, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={11:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, ix=2146435072, npio2_hw_rempio={14:0}, one_kcos=1, one_krempio=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={7:0}, S2_ksin=208333333333062236531/25000000000000000000000, S4_ksin=275573137070700676789/100000000000000000000000000, S6_ksin=158969099521155010221/1000000000000000000000000000000, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={17:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, y={9:0}, z=0, zero_krempio=0, zero_rempio=0] [L625] COND TRUE ix >= 0x7ff00000 [L626] return x - x; [L626] return x - x; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, C1_kcos=416666666666666019037/10000000000000000000000, C3_kcos=124007936447383647089/5000000000000000000000000, C5_kcos=20875723212981748279/10000000000000000000000000000, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={11:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, ix=2146435072, npio2_hw_rempio={14:0}, one_kcos=1, one_krempio=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={7:0}, S2_ksin=208333333333062236531/25000000000000000000000, S4_ksin=275573137070700676789/100000000000000000000000000, S6_ksin=158969099521155010221/1000000000000000000000000000000, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={17:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, z=0, zero_krempio=0, zero_rempio=0] [L651] RET, EXPR sin_double(x) [L651] double res = sin_double(x); [L654] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [C1_kcos=416666666666666019037/10000000000000000000000, C3_kcos=124007936447383647089/5000000000000000000000000, C5_kcos=20875723212981748279/10000000000000000000000000000, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={11:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={14:0}, one_kcos=1, one_krempio=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={7:0}, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, res == -0.0 && __signbit_double(res) == 1=0, S2_ksin=208333333333062236531/25000000000000000000000, S4_ksin=275573137070700676789/100000000000000000000000000, S6_ksin=158969099521155010221/1000000000000000000000000000000, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={17:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_krempio=0, zero_rempio=0] [L654] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L655] reach_error() VAL [C1_kcos=416666666666666019037/10000000000000000000000, C3_kcos=124007936447383647089/5000000000000000000000000, C5_kcos=20875723212981748279/10000000000000000000000000000, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, init_jk_krempio={11:0}, invpio2_rempio=636619772367581382433/1000000000000000000000, npio2_hw_rempio={14:0}, one_kcos=1, one_krempio=1, pio2_1_rempio=157079632673412561417/100000000000000000000, pio2_1t_rempio=151927512662654806233/2500000000000000000000000000000, pio2_2_rempio=30385502531519829883/500000000000000000000000000000, pio2_2t_rempio=101113312439797531577/50000000000000000000000000000000000000000, pio2_3_rempio=10111331243555832279/5000000000000000000000000000000000000000, pio2_3t_rempio=847842766036889956997/10000000000000000000000000000000000000000000000000000, PIo2_krempio={7:0}, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, S2_ksin=208333333333062236531/25000000000000000000000, S4_ksin=275573137070700676789/100000000000000000000000000, S6_ksin=158969099521155010221/1000000000000000000000000000000, tiny_scalbn=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, two24_krempio=16777216, two24_rempio=16777216, two54_scalbn=18014398509481984, two_over_pi_rempio={17:0}, twom54_scalbn=138777878078144567553/2500000000000000000000000000000000000, twon24_krempio=1/16777216, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_krempio=0, zero_rempio=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 178 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 142.49ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 194 SdHoareTripleChecker+Invalid, 118.33ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 194 mSDtfsCounter, 53 mSolverCounterSat, 5.74ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s 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 [2021-11-13 01:30:46,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0220b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF --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 9b72ffef78e797287b5bc98eb96d44304e95eeea6df503cfbba3a5fc6983ef3a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:30:49,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:30:49,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:30:49,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:30:49,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:30:49,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:30:49,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:30:49,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:30:49,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:30:49,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:30:49,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:30:49,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:30:49,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:30:49,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:30:49,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:30:49,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:30:49,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:30:49,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:30:49,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:30:49,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:30:49,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:30:49,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:30:49,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:30:49,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:30:49,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:30:49,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:30:49,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:30:49,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:30:49,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:30:49,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:30:49,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:30:49,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:30:49,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:30:49,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:30:49,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:30:49,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:30:49,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:30:49,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:30:49,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:30:49,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:30:49,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:30:49,579 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-13 01:30:49,633 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:30:49,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:30:49,635 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:30:49,636 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:30:49,636 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:30:49,637 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:30:49,637 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:30:49,637 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:30:49,638 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:30:49,638 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:30:49,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:30:49,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:30:49,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:30:49,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:30:49,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:30:49,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:30:49,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:30:49,644 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:30:49,644 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:30:49,645 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:30:49,645 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:30:49,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:30:49,646 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:30:49,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:30:49,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:30:49,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:30:49,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:30:49,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:30:49,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:30:49,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:30:49,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:30:49,649 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:30:49,650 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:30:49,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:30:49,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:30:49,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:30:49,652 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_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b72ffef78e797287b5bc98eb96d44304e95eeea6df503cfbba3a5fc6983ef3a [2021-11-13 01:30:50,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:30:50,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:30:50,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:30:50,132 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:30:50,133 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:30:50,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/double_req_bl_0220b.c [2021-11-13 01:30:50,227 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/data/a81a73a55/430a5349bea34f6fb29acbfef462b5a1/FLAGa422cea20 [2021-11-13 01:30:50,936 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:30:50,937 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/sv-benchmarks/c/float-newlib/double_req_bl_0220b.c [2021-11-13 01:30:50,963 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/data/a81a73a55/430a5349bea34f6fb29acbfef462b5a1/FLAGa422cea20 [2021-11-13 01:30:51,236 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/data/a81a73a55/430a5349bea34f6fb29acbfef462b5a1 [2021-11-13 01:30:51,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:30:51,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:30:51,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:30:51,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:30:51,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:30:51,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:51" (1/1) ... [2021-11-13 01:30:51,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@551dbfe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:51, skipping insertion in model container [2021-11-13 01:30:51,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:51" (1/1) ... [2021-11-13 01:30:51,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:30:51,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:30:51,760 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_0d1c4be8-ae86-4249-a4f6-611a523f5c20/sv-benchmarks/c/float-newlib/double_req_bl_0220b.c[16494,16507] [2021-11-13 01:30:51,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:30:51,812 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:30:52,016 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_0d1c4be8-ae86-4249-a4f6-611a523f5c20/sv-benchmarks/c/float-newlib/double_req_bl_0220b.c[16494,16507] [2021-11-13 01:30:52,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:30:52,091 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:30:52,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:52 WrapperNode [2021-11-13 01:30:52,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:30:52,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:30:52,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:30:52,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:30:52,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:52" (1/1) ... [2021-11-13 01:30:52,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:52" (1/1) ... [2021-11-13 01:30:52,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:30:52,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:30:52,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:30:52,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:30:52,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:52" (1/1) ... [2021-11-13 01:30:52,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:52" (1/1) ... [2021-11-13 01:30:52,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:52" (1/1) ... [2021-11-13 01:30:52,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:52" (1/1) ... [2021-11-13 01:30:52,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:52" (1/1) ... [2021-11-13 01:30:52,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:52" (1/1) ... [2021-11-13 01:30:52,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:52" (1/1) ... [2021-11-13 01:30:52,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:30:52,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:30:52,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:30:52,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:30:52,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:52" (1/1) ... [2021-11-13 01:30:52,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:30:52,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:30:52,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:30:52,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:30:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-13 01:30:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_double [2021-11-13 01:30:52,502 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_double [2021-11-13 01:30:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-13 01:30:52,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:30:52,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 01:30:52,505 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cos [2021-11-13 01:30:52,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cos [2021-11-13 01:30:52,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:30:52,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-13 01:30:52,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:30:52,506 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sin [2021-11-13 01:30:52,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sin [2021-11-13 01:30:52,506 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2021-11-13 01:30:52,507 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2021-11-13 01:30:52,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:30:52,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:30:52,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:30:52,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:31:39,185 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:31:39,185 INFO L299 CfgBuilder]: Removed 65 assume(true) statements. [2021-11-13 01:31:39,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:31:39 BoogieIcfgContainer [2021-11-13 01:31:39,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:31:39,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:31:39,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:31:39,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:31:39,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:30:51" (1/3) ... [2021-11-13 01:31:39,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8e37d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:31:39, skipping insertion in model container [2021-11-13 01:31:39,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:52" (2/3) ... [2021-11-13 01:31:39,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8e37d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:31:39, skipping insertion in model container [2021-11-13 01:31:39,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:31:39" (3/3) ... [2021-11-13 01:31:39,199 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0220b.c [2021-11-13 01:31:39,206 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:31:39,207 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:31:39,265 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:31:39,272 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 01:31:39,272 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:31:39,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 261 states, 243 states have (on average 1.6707818930041152) internal successors, (406), 244 states have internal predecessors, (406), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-13 01:31:39,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 01:31:39,307 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:39,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:39,308 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:31:39,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:39,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1677729891, now seen corresponding path program 1 times [2021-11-13 01:31:39,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:31:39,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788500819] [2021-11-13 01:31:39,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:39,335 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:31:39,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:31:39,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:31:39,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:31:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:39,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 01:31:39,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:40,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:40,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:40,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:40,252 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:31:40,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788500819] [2021-11-13 01:31:40,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788500819] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:40,253 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:31:40,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 01:31:40,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426899349] [2021-11-13 01:31:40,256 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:40,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:31:40,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:31:40,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:31:40,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:31:40,335 INFO L87 Difference]: Start difference. First operand has 261 states, 243 states have (on average 1.6707818930041152) internal successors, (406), 244 states have internal predecessors, (406), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:31:40,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:40,465 INFO L93 Difference]: Finished difference Result 520 states and 870 transitions. [2021-11-13 01:31:40,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:31:40,468 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-13 01:31:40,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:40,490 INFO L225 Difference]: With dead ends: 520 [2021-11-13 01:31:40,493 INFO L226 Difference]: Without dead ends: 258 [2021-11-13 01:31:40,508 INFO L932 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 [2021-11-13 01:31:40,524 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.37ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:40,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 7.37ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 01:31:40,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-11-13 01:31:40,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2021-11-13 01:31:40,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 241 states have (on average 1.3983402489626555) internal successors, (337), 241 states have internal predecessors, (337), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-13 01:31:40,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 361 transitions. [2021-11-13 01:31:40,673 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 361 transitions. Word has length 10 [2021-11-13 01:31:40,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:40,675 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 361 transitions. [2021-11-13 01:31:40,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:31:40,676 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 361 transitions. [2021-11-13 01:31:40,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 01:31:40,677 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:40,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:40,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:40,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:31:40,894 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:31:40,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:40,896 INFO L85 PathProgramCache]: Analyzing trace with hash 750184147, now seen corresponding path program 1 times [2021-11-13 01:31:40,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:31:40,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928424451] [2021-11-13 01:31:40,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:40,897 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:31:40,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:31:40,902 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:31:40,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:31:41,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:41,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 01:31:41,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:42,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:42,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:43,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:43,004 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:31:43,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928424451] [2021-11-13 01:31:43,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928424451] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:43,005 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:31:43,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 01:31:43,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494445304] [2021-11-13 01:31:43,006 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:43,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:31:43,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:31:43,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:31:43,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:31:43,009 INFO L87 Difference]: Start difference. First operand 258 states and 361 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2021-11-13 01:31:43,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:43,232 INFO L93 Difference]: Finished difference Result 277 states and 382 transitions. [2021-11-13 01:31:43,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:31:43,233 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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 [2021-11-13 01:31:43,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:43,234 INFO L225 Difference]: With dead ends: 277 [2021-11-13 01:31:43,234 INFO L226 Difference]: Without dead ends: 27 [2021-11-13 01:31:43,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:31:43,237 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 3 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.98ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 55.26ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:43,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 153 Invalid, 8 Unknown, 0 Unchecked, 1.98ms Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 4 Unchecked, 55.26ms Time] [2021-11-13 01:31:43,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-13 01:31:43,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-13 01:31:43,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 01:31:43,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2021-11-13 01:31:43,244 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 11 [2021-11-13 01:31:43,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:43,244 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-11-13 01:31:43,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2021-11-13 01:31:43,245 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2021-11-13 01:31:43,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 01:31:43,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:43,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:43,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:43,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:31:43,469 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:31:43,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:43,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1420923203, now seen corresponding path program 1 times [2021-11-13 01:31:43,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:31:43,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353176803] [2021-11-13 01:31:43,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:43,472 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:31:43,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:31:43,475 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:31:43,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:31:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:43,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 01:31:43,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:45,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:49,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:49,945 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:31:49,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353176803] [2021-11-13 01:31:49,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353176803] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:49,946 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:31:49,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13 [2021-11-13 01:31:49,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102562275] [2021-11-13 01:31:49,947 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:49,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 01:31:49,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:31:49,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 01:31:49,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-11-13 01:31:49,949 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 11 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:31:54,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:31:56,713 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:31:58,720 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:00,724 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:03,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:05,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:07,309 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:08,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:32:08,843 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2021-11-13 01:32:08,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 01:32:08,845 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 11 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2021-11-13 01:32:08,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:32:08,846 INFO L225 Difference]: With dead ends: 43 [2021-11-13 01:32:08,846 INFO L226 Difference]: Without dead ends: 40 [2021-11-13 01:32:08,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2021-11-13 01:32:08,848 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 51 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 6 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17062.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.34ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17669.30ms IncrementalHoareTripleChecker+Time [2021-11-13 01:32:08,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 162 Invalid, 81 Unknown, 0 Unchecked, 3.34ms Time], IncrementalHoareTripleChecker [6 Valid, 68 Invalid, 7 Unknown, 0 Unchecked, 17669.30ms Time] [2021-11-13 01:32:08,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-13 01:32:08,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 32. [2021-11-13 01:32:08,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 01:32:08,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2021-11-13 01:32:08,856 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 20 [2021-11-13 01:32:08,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:32:08,857 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2021-11-13 01:32:08,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 11 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:32:08,858 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2021-11-13 01:32:08,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 01:32:08,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:32:08,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:32:08,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:32:09,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:32:09,066 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:32:09,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:32:09,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1628843070, now seen corresponding path program 1 times [2021-11-13 01:32:09,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:32:09,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883548177] [2021-11-13 01:32:09,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:32:09,071 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:32:09,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:32:09,073 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:32:09,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:32:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:32:12,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 01:32:12,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:32:13,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:32:13,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:32:16,234 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:32:16,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883548177] [2021-11-13 01:32:16,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_skolemized_q#valueAsBitvector_100|] [2021-11-13 01:32:16,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1767367659] [2021-11-13 01:32:16,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:32:16,236 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:32:16,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:32:16,238 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:32:16,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-13 01:32:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:32:26,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 01:32:26,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:32:27,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:32:27,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:32:30,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:32:30,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1767367659] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:32:30,445 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:32:30,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-13 01:32:30,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398156882] [2021-11-13 01:32:30,446 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:32:30,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 01:32:30,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:32:30,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 01:32:30,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:32:30,448 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:32:32,515 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:35,283 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:37,782 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:40,330 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:40,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:32:40,333 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2021-11-13 01:32:40,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:32:40,516 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2021-11-13 01:32:40,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:32:40,517 INFO L225 Difference]: With dead ends: 46 [2021-11-13 01:32:40,517 INFO L226 Difference]: Without dead ends: 32 [2021-11-13 01:32:40,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:32:40,519 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9501.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 9876.09ms IncrementalHoareTripleChecker+Time [2021-11-13 01:32:40,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 158 Invalid, 31 Unknown, 0 Unchecked, 1.13ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 4 Unknown, 22 Unchecked, 9876.09ms Time] [2021-11-13 01:32:40,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-13 01:32:40,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-11-13 01:32:40,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 01:32:40,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2021-11-13 01:32:40,525 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 21 [2021-11-13 01:32:40,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:32:40,526 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2021-11-13 01:32:40,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:32:40,526 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2021-11-13 01:32:40,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-13 01:32:40,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:32:40,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:32:40,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-13 01:32:40,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2021-11-13 01:32:40,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 01:32:40,933 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:32:40,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:32:40,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1175975143, now seen corresponding path program 1 times [2021-11-13 01:32:40,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:32:40,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841437172] [2021-11-13 01:32:40,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:32:40,936 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:32:40,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:32:40,938 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:32:40,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:32:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:32:44,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:32:44,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:32:45,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:32:45,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:32:58,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:32:58,301 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:32:58,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841437172] [2021-11-13 01:32:58,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841437172] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:32:58,302 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:32:58,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 01:32:58,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89014457] [2021-11-13 01:32:58,302 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:32:58,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:32:58,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:32:58,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:32:58,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:32:58,304 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:33:01,117 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:33:05,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:33:08,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:33:11,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:33:11,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:11,338 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2021-11-13 01:33:11,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:33:11,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2021-11-13 01:33:11,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:11,535 INFO L225 Difference]: With dead ends: 39 [2021-11-13 01:33:11,536 INFO L226 Difference]: Without dead ends: 25 [2021-11-13 01:33:11,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:33:11,537 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 25 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11579.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.70ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12064.93ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:11,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 66 Invalid, 21 Unknown, 0 Unchecked, 0.70ms Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 3 Unknown, 0 Unchecked, 12064.93ms Time] [2021-11-13 01:33:11,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-13 01:33:11,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-13 01:33:11,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.0) internal successors, (22), 22 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 01:33:11,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2021-11-13 01:33:11,542 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 22 [2021-11-13 01:33:11,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:11,543 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2021-11-13 01:33:11,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:33:11,544 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2021-11-13 01:33:11,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 01:33:11,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:11,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:11,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 01:33:11,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:33:11,748 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:33:11,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:11,749 INFO L85 PathProgramCache]: Analyzing trace with hash -846223854, now seen corresponding path program 1 times [2021-11-13 01:33:11,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:33:11,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179804684] [2021-11-13 01:33:11,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:11,750 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:33:11,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:33:11,751 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:33:11,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 01:33:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:12,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 01:33:12,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:33:14,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:33:14,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:33:18,741 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:33:18,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179804684] [2021-11-13 01:33:18,741 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_skolemized_q#valueAsBitvector_108|] [2021-11-13 01:33:18,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [191447240] [2021-11-13 01:33:18,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:18,741 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:33:18,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:33:18,742 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:33:18,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-13 01:33:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:26,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 01:33:26,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:33:27,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:33:27,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:33:29,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_skolemized_q#valueAsBitvector_108|] [2021-11-13 01:33:29,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825243033] [2021-11-13 01:33:29,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:29,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:33:29,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:33:29,919 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:33:29,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-13 01:33:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:30,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 01:33:30,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:33:31,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:33:31,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:33:32,525 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_skolemized_q#valueAsBitvector_108|] [2021-11-13 01:33:32,526 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:32,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-13 01:33:32,526 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-13 01:33:32,526 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-13 01:33:32,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:33:32,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-13 01:33:32,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 01:33:32,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-13 01:33:33,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:33:33,154 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-13 01:33:33,157 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:33:33,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:33:33 BoogieIcfgContainer [2021-11-13 01:33:33,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:33:33,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:33:33,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:33:33,180 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:33:33,194 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:31:39" (3/4) ... [2021-11-13 01:33:33,197 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 01:33:33,197 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:33:33,198 INFO L158 Benchmark]: Toolchain (without parser) took 161957.90ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 38.1MB in the beginning and 45.3MB in the end (delta: -7.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-13 01:33:33,199 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory was 41.7MB in the beginning and 41.7MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:33:33,199 INFO L158 Benchmark]: CACSL2BoogieTranslator took 849.93ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 38.0MB in the beginning and 66.4MB in the end (delta: -28.3MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2021-11-13 01:33:33,200 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.44ms. Allocated memory is still 86.0MB. Free memory was 66.4MB in the beginning and 60.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 01:33:33,200 INFO L158 Benchmark]: Boogie Preprocessor took 167.71ms. Allocated memory is still 86.0MB. Free memory was 60.1MB in the beginning and 53.5MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 01:33:33,200 INFO L158 Benchmark]: RCFGBuilder took 46808.03ms. Allocated memory is still 86.0MB. Free memory was 53.2MB in the beginning and 47.0MB in the end (delta: 6.2MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2021-11-13 01:33:33,201 INFO L158 Benchmark]: TraceAbstraction took 113988.59ms. Allocated memory is still 86.0MB. Free memory was 46.6MB in the beginning and 45.3MB in the end (delta: 1.3MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2021-11-13 01:33:33,201 INFO L158 Benchmark]: Witness Printer took 17.65ms. Allocated memory is still 86.0MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:33:33,203 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory was 41.7MB in the beginning and 41.7MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 849.93ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 38.0MB in the beginning and 66.4MB in the end (delta: -28.3MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.44ms. Allocated memory is still 86.0MB. Free memory was 66.4MB in the beginning and 60.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 167.71ms. Allocated memory is still 86.0MB. Free memory was 60.1MB in the beginning and 53.5MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 46808.03ms. Allocated memory is still 86.0MB. Free memory was 53.2MB in the beginning and 47.0MB in the end (delta: 6.2MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * TraceAbstraction took 113988.59ms. Allocated memory is still 86.0MB. Free memory was 46.6MB in the beginning and 45.3MB in the end (delta: 1.3MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. * Witness Printer took 17.65ms. Allocated memory is still 86.0MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 655]: 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: [L22] static const double huge_floor = 1.0e300; [L119-L121] static const double two54_scalbn = 1.80143985094819840000e+16, twom54_scalbn = 5.55111512312578270212e-17, huge_scalbn = 1.0e+300, tiny_scalbn = 1.0e-300; [L190] static const int init_jk_krempio[] = {2, 3, 4, 6}; [L192-L197] static const double PIo2_krempio[] = { 1.57079625129699707031e+00, 7.54978941586159635335e-08, 5.39030252995776476554e-15, 3.28200341580791294123e-22, 1.27065575308067607349e-29, 1.22933308981111328932e-36, 2.73370053816464559624e-44, 2.16741683877804819444e-51, }; [L199-L201] static const double zero_krempio = 0.0, one_krempio = 1.0, two24_krempio = 1.67772160000000000000e+07, twon24_krempio = 5.96046447753906250000e-08; [L376-L387] static const __int32_t two_over_pi_rempio[] = { 0xA2F983, 0x6E4E44, 0x1529FC, 0x2757D1, 0xF534DD, 0xC0DB62, 0x95993C, 0x439041, 0xFE5163, 0xABDEBB, 0xC561B7, 0x246E3A, 0x424DD2, 0xE00649, 0x2EEA09, 0xD1921C, 0xFE1DEB, 0x1CB129, 0xA73EE8, 0x8235F5, 0x2EBB44, 0x84E99C, 0x7026B4, 0x5F7E41, 0x3991D6, 0x398353, 0x39F49C, 0x845F8B, 0xBDF928, 0x3B1FF8, 0x97FFDE, 0x05980F, 0xEF2F11, 0x8B5A0A, 0x6D1F6D, 0x367ECF, 0x27CB09, 0xB74F46, 0x3F669E, 0x5FEA2D, 0x7527BA, 0xC7EBE5, 0xF17B3D, 0x0739F7, 0x8A5292, 0xEA6BFB, 0x5FB11F, 0x8D5D08, 0x560330, 0x46FC7B, 0x6BABF0, 0xCFBC20, 0x9AF436, 0x1DA9E3, 0x91615E, 0xE61B08, 0x659985, 0x5F14A0, 0x68408D, 0xFFD880, 0x4D7327, 0x310606, 0x1556CA, 0x73A8C9, 0x60E27B, 0xC08C6B, }; [L389-L396] static const __int32_t npio2_hw_rempio[] = { 0x3FF921FB, 0x400921FB, 0x4012D97C, 0x401921FB, 0x401F6A7A, 0x4022D97C, 0x4025FDBB, 0x402921FB, 0x402C463A, 0x402F6A7A, 0x4031475C, 0x4032D97C, 0x40346B9C, 0x4035FDBB, 0x40378FDB, 0x403921FB, 0x403AB41B, 0x403C463A, 0x403DD85A, 0x403F6A7A, 0x40407E4C, 0x4041475C, 0x4042106C, 0x4042D97C, 0x4043A28C, 0x40446B9C, 0x404534AC, 0x4045FDBB, 0x4046C6CB, 0x40478FDB, 0x404858EB, 0x404921FB, }; [L398-L407] static const double zero_rempio = 0.00000000000000000000e+00, half_rempio = 5.00000000000000000000e-01, two24_rempio = 1.67772160000000000000e+07, invpio2_rempio = 6.36619772367581382433e-01, pio2_1_rempio = 1.57079632673412561417e+00, pio2_1t_rempio = 6.07710050650619224932e-11, pio2_2_rempio = 6.07710050630396597660e-11, pio2_2t_rempio = 2.02226624879595063154e-21, pio2_3_rempio = 2.02226624871116645580e-21, pio2_3t_rempio = 8.47842766036889956997e-32; [L540-L546] static const double one_kcos = 1.00000000000000000000e+00, C1_kcos = 4.16666666666666019037e-02, C2_kcos = -1.38888888888741095749e-03, C3_kcos = 2.48015872894767294178e-05, C4_kcos = -2.75573143513906633035e-07, C5_kcos = 2.08757232129817482790e-09, C6_kcos = -1.13596475577881948265e-11; [L584-L590] static const double half_ksin = 5.00000000000000000000e-01, S1_ksin = -1.66666666666666324348e-01, S2_ksin = 8.33333333332248946124e-03, S3_ksin = -1.98412698298579493134e-04, S4_ksin = 2.75573137070700676789e-06, S5_ksin = -2.50507602534068634195e-08, S6_ksin = 1.58969099521155010221e-10; [L650] double x = -0.0; [L651] CALL, EXPR sin_double(x) [L615] double y[2], z = 0.0; [L616] __int32_t n, ix; [L618] ieee_double_shape_type gh_u; [L619] gh_u.value = (x) [L620] EXPR gh_u.parts.msw [L620] (ix) = gh_u.parts.msw [L622] ix &= 0x7fffffff [L623] COND TRUE ix <= 0x3fe921fb [L624] CALL, EXPR __kernel_sin(x, z, 0) [L593] double z, r, v; [L594] __int32_t ix; [L596] ieee_double_shape_type gh_u; [L597] gh_u.value = (x) [L598] EXPR gh_u.parts.msw [L598] (ix) = gh_u.parts.msw [L600] ix &= 0x7fffffff [L601] COND TRUE ix < 0x3e400000 [L602] COND TRUE (int)x == 0 [L603] return x; [L624] RET, EXPR __kernel_sin(x, z, 0) [L624] return __kernel_sin(x, z, 0); [L624] return __kernel_sin(x, z, 0); [L651] RET, EXPR sin_double(x) [L651] double res = sin_double(x); [L654] EXPR res == -0.0 && __signbit_double(res) == 1 [L654] CALL, EXPR __signbit_double(res) [L88] __uint32_t msw; [L91] ieee_double_shape_type gh_u; [L92] gh_u.value = (x) [L93] EXPR gh_u.parts.msw [L93] (msw) = gh_u.parts.msw [L96] return (msw & 0x80000000) != 0; [L654] RET, EXPR __signbit_double(res) [L654] EXPR res == -0.0 && __signbit_double(res) == 1 [L654] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L655] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 261 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 113.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 42.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 14 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 39665.58ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 903 SdHoareTripleChecker+Invalid, 38196.74ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 26 IncrementalHoareTripleChecker+Unchecked, 440 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 463 mSDtfsCounter, 93 mSolverCounterSat, 14.51ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 155 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 13.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=261occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 16.8s SatisfiabilityAnalysisTime, 37.6s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 201 ConstructedInterpolants, 33 QuantifiedInterpolants, 1124 SizeOfPredicates, 39 NumberOfNonLiveVariables, 1728 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-13 01:33:33,434 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-13 01:33:33,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1c4be8-ae86-4249-a4f6-611a523f5c20/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN