./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0663a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0663a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH --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 a1b9ef3c37243ea1f2055947b64f65c02591cc70d7ea8c31a5f3a0bcc617aaa7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:22:47,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:22:47,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:22:47,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:22:47,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:22:47,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:22:47,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:22:47,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:22:47,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:22:47,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:22:47,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:22:47,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:22:47,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:22:47,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:22:47,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:22:47,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:22:47,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:22:47,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:22:47,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:22:47,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:22:47,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:22:47,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:22:47,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:22:47,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:22:47,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:22:47,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:22:47,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:22:47,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:22:47,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:22:47,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:22:47,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:22:47,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:22:47,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:22:47,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:22:47,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:22:47,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:22:47,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:22:47,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:22:47,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:22:47,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:22:47,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:22:47,773 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:22:47,807 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:22:47,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:22:47,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:22:47,809 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:22:47,809 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:22:47,810 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:22:47,810 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:22:47,811 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:22:47,811 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:22:47,812 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:22:47,812 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:22:47,813 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:22:47,813 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:22:47,814 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:22:47,814 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:22:47,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:22:47,816 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:22:47,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:22:47,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:22:47,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:22:47,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:22:47,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:22:47,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:22:47,819 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:22:47,819 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:22:47,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:22:47,820 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:22:47,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:22:47,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:22:47,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:22:47,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:22:47,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:22:47,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:22:47,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:22:47,824 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:22:47,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:22:47,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:22:47,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:22:47,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:22:47,826 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_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1b9ef3c37243ea1f2055947b64f65c02591cc70d7ea8c31a5f3a0bcc617aaa7 [2021-11-03 05:22:48,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:22:48,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:22:48,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:22:48,194 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:22:48,195 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:22:48,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2021-11-03 05:22:48,314 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/data/b9cb75518/7a023a22b6a841978320d518592b92ff/FLAG2befbea83 [2021-11-03 05:22:48,913 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:22:48,914 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2021-11-03 05:22:48,924 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/data/b9cb75518/7a023a22b6a841978320d518592b92ff/FLAG2befbea83 [2021-11-03 05:22:49,239 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/data/b9cb75518/7a023a22b6a841978320d518592b92ff [2021-11-03 05:22:49,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:22:49,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:22:49,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:22:49,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:22:49,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:22:49,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:22:49" (1/1) ... [2021-11-03 05:22:49,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59bc26eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:49, skipping insertion in model container [2021-11-03 05:22:49,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:22:49" (1/1) ... [2021-11-03 05:22:49,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:22:49,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:22:49,608 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_e3254bec-d0a3-4c38-934f-04734073eca5/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c[6220,6233] [2021-11-03 05:22:49,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:22:49,624 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:22:49,696 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_e3254bec-d0a3-4c38-934f-04734073eca5/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c[6220,6233] [2021-11-03 05:22:49,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:22:49,735 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:22:49,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:49 WrapperNode [2021-11-03 05:22:49,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:22:49,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:22:49,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:22:49,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:22:49,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:49" (1/1) ... [2021-11-03 05:22:49,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:49" (1/1) ... [2021-11-03 05:22:49,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:22:49,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:22:49,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:22:49,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:22:49,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:49" (1/1) ... [2021-11-03 05:22:49,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:49" (1/1) ... [2021-11-03 05:22:49,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:49" (1/1) ... [2021-11-03 05:22:49,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:49" (1/1) ... [2021-11-03 05:22:49,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:49" (1/1) ... [2021-11-03 05:22:49,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:49" (1/1) ... [2021-11-03 05:22:49,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:49" (1/1) ... [2021-11-03 05:22:49,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:22:49,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:22:49,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:22:49,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:22:49,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:49" (1/1) ... [2021-11-03 05:22:49,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:22:49,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:22:50,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:22:50,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:22:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 05:22:50,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:22:50,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-03 05:22:50,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 05:22:50,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-03 05:22:50,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:22:50,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:22:50,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 05:22:50,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-03 05:22:50,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:22:51,361 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:22:51,362 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-11-03 05:22:51,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:22:51 BoogieIcfgContainer [2021-11-03 05:22:51,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:22:51,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:22:51,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:22:51,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:22:51,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:22:49" (1/3) ... [2021-11-03 05:22:51,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1402b048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:22:51, skipping insertion in model container [2021-11-03 05:22:51,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:49" (2/3) ... [2021-11-03 05:22:51,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1402b048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:22:51, skipping insertion in model container [2021-11-03 05:22:51,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:22:51" (3/3) ... [2021-11-03 05:22:51,376 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663a.c [2021-11-03 05:22:51,387 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:22:51,388 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:22:51,459 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:22:51,469 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 [2021-11-03 05:22:51,469 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 05:22:51,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 82 states have (on average 1.7439024390243902) internal successors, (143), 83 states have internal predecessors, (143), 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) [2021-11-03 05:22:51,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 05:22:51,505 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:22:51,506 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:22:51,506 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:22:51,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:22:51,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1882889100, now seen corresponding path program 1 times [2021-11-03 05:22:51,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:22:51,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844013780] [2021-11-03 05:22:51,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:22:51,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:22:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:22:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:22:51,732 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:22:51,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844013780] [2021-11-03 05:22:51,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844013780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:22:51,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:22:51,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 05:22:51,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773154585] [2021-11-03 05:22:51,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:22:51,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:22:51,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:22:51,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:22:51,770 INFO L87 Difference]: Start difference. First operand has 84 states, 82 states have (on average 1.7439024390243902) internal successors, (143), 83 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:22:51,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:22:51,821 INFO L93 Difference]: Finished difference Result 166 states and 283 transitions. [2021-11-03 05:22:51,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:22:51,822 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 [2021-11-03 05:22:51,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:22:51,835 INFO L225 Difference]: With dead ends: 166 [2021-11-03 05:22:51,836 INFO L226 Difference]: Without dead ends: 81 [2021-11-03 05:22:51,840 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:22:51,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-03 05:22:51,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2021-11-03 05:22:51,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.375) internal successors, (110), 80 states have internal predecessors, (110), 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) [2021-11-03 05:22:51,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 110 transitions. [2021-11-03 05:22:51,895 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 110 transitions. Word has length 10 [2021-11-03 05:22:51,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:22:51,896 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 110 transitions. [2021-11-03 05:22:51,896 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) [2021-11-03 05:22:51,897 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 110 transitions. [2021-11-03 05:22:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 05:22:51,898 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:22:51,898 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:22:51,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 05:22:51,899 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:22:51,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:22:51,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1485570307, now seen corresponding path program 1 times [2021-11-03 05:22:51,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:22:51,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145952214] [2021-11-03 05:22:51,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:22:51,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:22:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 05:22:52,080 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 05:22:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 05:22:52,254 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 05:22:52,255 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 05:22:52,257 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 05:22:52,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 05:22:52,263 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-03 05:22:52,267 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 05:22:52,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 05:22:52 BoogieIcfgContainer [2021-11-03 05:22:52,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 05:22:52,344 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 05:22:52,344 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 05:22:52,344 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 05:22:52,345 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:22:51" (3/4) ... [2021-11-03 05:22:52,348 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-03 05:22:52,349 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 05:22:52,352 INFO L168 Benchmark]: Toolchain (without parser) took 3106.73 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 78.3 MB in the beginning and 65.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:22:52,353 INFO L168 Benchmark]: CDTParser took 1.12 ms. Allocated memory is still 113.2 MB. Free memory is still 68.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:22:52,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 507.60 ms. Allocated memory is still 113.2 MB. Free memory was 78.3 MB in the beginning and 83.0 MB in the end (delta: -4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-03 05:22:52,358 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.40 ms. Allocated memory is still 113.2 MB. Free memory was 83.0 MB in the beginning and 80.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:22:52,364 INFO L168 Benchmark]: Boogie Preprocessor took 90.83 ms. Allocated memory is still 113.2 MB. Free memory was 80.0 MB in the beginning and 76.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:22:52,366 INFO L168 Benchmark]: RCFGBuilder took 1403.96 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 76.7 MB in the beginning and 101.0 MB in the end (delta: -24.3 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:22:52,367 INFO L168 Benchmark]: TraceAbstraction took 975.89 ms. Allocated memory is still 136.3 MB. Free memory was 101.0 MB in the beginning and 66.0 MB in the end (delta: 35.0 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-11-03 05:22:52,367 INFO L168 Benchmark]: Witness Printer took 5.40 ms. Allocated memory is still 136.3 MB. Free memory was 66.0 MB in the beginning and 65.4 MB in the end (delta: 647.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:22:52,376 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.12 ms. Allocated memory is still 113.2 MB. Free memory is still 68.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 507.60 ms. Allocated memory is still 113.2 MB. Free memory was 78.3 MB in the beginning and 83.0 MB in the end (delta: -4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 111.40 ms. Allocated memory is still 113.2 MB. Free memory was 83.0 MB in the beginning and 80.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.83 ms. Allocated memory is still 113.2 MB. Free memory was 80.0 MB in the beginning and 76.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1403.96 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 76.7 MB in the beginning and 101.0 MB in the end (delta: -24.3 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 975.89 ms. Allocated memory is still 136.3 MB. Free memory was 101.0 MB in the beginning and 66.0 MB in the end (delta: 35.0 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * Witness Printer took 5.40 ms. Allocated memory is still 136.3 MB. Free memory was 66.0 MB in the beginning and 65.4 MB in the end (delta: 647.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 262]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 261. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L253] double x = -0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE y > 0.0 [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != pi_o_2 VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L262] reach_error() VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 114 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2021-11-03 05:22:52,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/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_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0663a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH --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 a1b9ef3c37243ea1f2055947b64f65c02591cc70d7ea8c31a5f3a0bcc617aaa7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:22:55,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:22:55,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:22:55,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:22:55,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:22:55,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:22:55,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:22:55,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:22:55,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:22:55,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:22:55,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:22:55,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:22:55,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:22:55,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:22:55,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:22:55,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:22:55,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:22:55,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:22:55,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:22:55,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:22:55,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:22:55,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:22:55,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:22:55,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:22:55,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:22:55,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:22:55,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:22:55,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:22:55,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:22:55,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:22:55,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:22:55,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:22:55,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:22:55,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:22:55,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:22:55,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:22:55,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:22:55,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:22:55,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:22:55,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:22:55,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:22:55,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 05:22:55,737 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:22:55,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:22:55,739 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:22:55,739 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:22:55,740 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:22:55,740 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:22:55,740 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:22:55,741 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:22:55,741 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:22:55,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:22:55,744 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:22:55,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:22:55,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:22:55,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:22:55,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:22:55,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:22:55,746 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:22:55,746 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:22:55,747 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:22:55,747 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:22:55,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:22:55,747 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:22:55,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:22:55,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:22:55,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:22:55,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:22:55,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:22:55,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:22:55,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:22:55,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:22:55,750 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:22:55,750 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:22:55,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:22:55,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:22:55,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:22:55,752 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_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1b9ef3c37243ea1f2055947b64f65c02591cc70d7ea8c31a5f3a0bcc617aaa7 [2021-11-03 05:22:56,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:22:56,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:22:56,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:22:56,307 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:22:56,308 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:22:56,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2021-11-03 05:22:56,398 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/data/181511434/93bee248acc949b2ab689b5fba265cfa/FLAG1fdd76f56 [2021-11-03 05:22:57,124 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:22:57,125 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2021-11-03 05:22:57,139 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/data/181511434/93bee248acc949b2ab689b5fba265cfa/FLAG1fdd76f56 [2021-11-03 05:22:57,432 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/data/181511434/93bee248acc949b2ab689b5fba265cfa [2021-11-03 05:22:57,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:22:57,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:22:57,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:22:57,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:22:57,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:22:57,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:22:57" (1/1) ... [2021-11-03 05:22:57,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7feedb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:57, skipping insertion in model container [2021-11-03 05:22:57,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:22:57" (1/1) ... [2021-11-03 05:22:57,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:22:57,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:22:57,927 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_e3254bec-d0a3-4c38-934f-04734073eca5/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c[6220,6233] [2021-11-03 05:22:57,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:22:57,961 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:22:58,060 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_e3254bec-d0a3-4c38-934f-04734073eca5/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c[6220,6233] [2021-11-03 05:22:58,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:22:58,088 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:22:58,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:58 WrapperNode [2021-11-03 05:22:58,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:22:58,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:22:58,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:22:58,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:22:58,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:58" (1/1) ... [2021-11-03 05:22:58,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:58" (1/1) ... [2021-11-03 05:22:58,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:22:58,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:22:58,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:22:58,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:22:58,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:58" (1/1) ... [2021-11-03 05:22:58,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:58" (1/1) ... [2021-11-03 05:22:58,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:58" (1/1) ... [2021-11-03 05:22:58,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:58" (1/1) ... [2021-11-03 05:22:58,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:58" (1/1) ... [2021-11-03 05:22:58,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:58" (1/1) ... [2021-11-03 05:22:58,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:58" (1/1) ... [2021-11-03 05:22:58,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:22:58,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:22:58,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:22:58,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:22:58,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:58" (1/1) ... [2021-11-03 05:22:58,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:22:58,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:22:58,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:22:58,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:22:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-03 05:22:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-03 05:22:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:22:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:22:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-03 05:22:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:22:58,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:22:58,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:22:58,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:22:58,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:23:39,612 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:23:39,613 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-11-03 05:23:39,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:23:39 BoogieIcfgContainer [2021-11-03 05:23:39,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:23:39,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:23:39,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:23:39,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:23:39,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:22:57" (1/3) ... [2021-11-03 05:23:39,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733242e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:23:39, skipping insertion in model container [2021-11-03 05:23:39,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:58" (2/3) ... [2021-11-03 05:23:39,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733242e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:23:39, skipping insertion in model container [2021-11-03 05:23:39,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:23:39" (3/3) ... [2021-11-03 05:23:39,629 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663a.c [2021-11-03 05:23:39,637 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:23:39,640 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:23:39,725 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:23:39,734 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 [2021-11-03 05:23:39,734 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 05:23:39,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 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) [2021-11-03 05:23:39,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 05:23:39,772 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:23:39,773 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:23:39,773 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:23:39,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:23:39,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1059427896, now seen corresponding path program 1 times [2021-11-03 05:23:39,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:23:39,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700874010] [2021-11-03 05:23:39,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:39,795 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:23:39,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:23:39,799 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:23:39,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:23:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:40,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:23:40,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:23:40,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:23:40,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:23:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:23:40,751 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:23:40,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700874010] [2021-11-03 05:23:40,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700874010] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:23:40,753 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:23:40,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:23:40,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826922956] [2021-11-03 05:23:40,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:23:40,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:23:40,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:23:40,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:23:40,781 INFO L87 Difference]: Start difference. First operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:40,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:23:40,817 INFO L93 Difference]: Finished difference Result 227 states and 382 transitions. [2021-11-03 05:23:40,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:23:40,819 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-03 05:23:40,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:23:40,832 INFO L225 Difference]: With dead ends: 227 [2021-11-03 05:23:40,832 INFO L226 Difference]: Without dead ends: 111 [2021-11-03 05:23:40,836 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:23:40,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-03 05:23:40,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-03 05:23:40,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 110 states have internal predecessors, (159), 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) [2021-11-03 05:23:40,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2021-11-03 05:23:40,887 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 11 [2021-11-03 05:23:40,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:23:40,888 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2021-11-03 05:23:40,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:40,889 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2021-11-03 05:23:40,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-03 05:23:40,889 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:23:40,890 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:23:40,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:23:41,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:23:41,113 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:23:41,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:23:41,114 INFO L85 PathProgramCache]: Analyzing trace with hash -7417919, now seen corresponding path program 1 times [2021-11-03 05:23:41,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:23:41,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504169764] [2021-11-03 05:23:41,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:41,116 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:23:41,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:23:41,118 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:23:41,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3254bec-d0a3-4c38-934f-04734073eca5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:23:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:41,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:23:41,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:23:42,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 34 [2021-11-03 05:23:45,568 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:45,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2021-11-03 05:23:45,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-11-03 05:23:50,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:23:50,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:23:55,974 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:55,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 92 [2021-11-03 05:23:56,228 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:56,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 92 [2021-11-03 05:23:56,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11