./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur --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 a2c42a61f78a6f1a62fbe64821c08eae311814302de1dfe9812261f1f96648c5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:15:15,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:15:15,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:15:15,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:15:15,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:15:15,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:15:15,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:15:15,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:15:15,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:15:15,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:15:15,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:15:15,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:15:15,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:15:15,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:15:15,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:15:15,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:15:15,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:15:15,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:15:15,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:15:15,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:15:15,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:15:15,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:15:15,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:15:15,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:15:15,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:15:15,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:15:15,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:15:15,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:15:15,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:15:15,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:15:15,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:15:15,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:15:15,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:15:15,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:15:15,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:15:15,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:15:15,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:15:15,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:15:15,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:15:15,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:15:15,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:15:15,746 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 23:15:15,781 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:15:15,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:15:15,782 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:15:15,782 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:15:15,783 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:15:15,783 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:15:15,784 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:15:15,784 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:15:15,784 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:15:15,784 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:15:15,785 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:15:15,786 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:15:15,786 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:15:15,786 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:15:15,786 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:15:15,786 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:15:15,787 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:15:15,787 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:15:15,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:15:15,788 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:15:15,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:15:15,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:15:15,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:15:15,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:15:15,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:15:15,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:15:15,790 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:15:15,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:15:15,790 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:15:15,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:15:15,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:15:15,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:15:15,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:15:15,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:15:15,792 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:15:15,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:15:15,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:15:15,792 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:15:15,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:15:15,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:15:15,793 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:15:15,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2c42a61f78a6f1a62fbe64821c08eae311814302de1dfe9812261f1f96648c5 [2022-11-25 23:15:16,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:15:16,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:15:16,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:15:16,179 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:15:16,179 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:15:16,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2022-11-25 23:15:19,211 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:15:19,390 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:15:19,390 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2022-11-25 23:15:19,398 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/data/28df4079a/17390b307ce24f09ba90c1de0a7f1235/FLAGd361775d5 [2022-11-25 23:15:19,453 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/data/28df4079a/17390b307ce24f09ba90c1de0a7f1235 [2022-11-25 23:15:19,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:15:19,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:15:19,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:15:19,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:15:19,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:15:19,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:15:19" (1/1) ... [2022-11-25 23:15:19,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38250bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:19, skipping insertion in model container [2022-11-25 23:15:19,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:15:19" (1/1) ... [2022-11-25 23:15:19,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:15:19,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:15:19,739 WARN L237 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_19c22a57-f7aa-44e8-aca1-5b24d8939a92/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c[3928,3941] [2022-11-25 23:15:19,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:15:19,754 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:15:19,796 WARN L237 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_19c22a57-f7aa-44e8-aca1-5b24d8939a92/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c[3928,3941] [2022-11-25 23:15:19,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:15:19,814 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:15:19,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:19 WrapperNode [2022-11-25 23:15:19,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:15:19,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:15:19,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:15:19,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:15:19,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:19" (1/1) ... [2022-11-25 23:15:19,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:19" (1/1) ... [2022-11-25 23:15:19,866 INFO L138 Inliner]: procedures = 19, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 206 [2022-11-25 23:15:19,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:15:19,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:15:19,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:15:19,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:15:19,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:19" (1/1) ... [2022-11-25 23:15:19,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:19" (1/1) ... [2022-11-25 23:15:19,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:19" (1/1) ... [2022-11-25 23:15:19,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:19" (1/1) ... [2022-11-25 23:15:19,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:19" (1/1) ... [2022-11-25 23:15:19,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:19" (1/1) ... [2022-11-25 23:15:19,925 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:19" (1/1) ... [2022-11-25 23:15:19,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:19" (1/1) ... [2022-11-25 23:15:19,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:15:19,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:15:19,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:15:19,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:15:19,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:19" (1/1) ... [2022-11-25 23:15:19,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:15:19,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:15:19,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:15:20,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:15:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:15:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:15:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:15:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-25 23:15:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:15:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-25 23:15:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:15:20,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:15:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:15:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-25 23:15:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:15:20,175 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:15:20,193 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:15:20,439 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:15:20,537 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:15:20,542 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-25 23:15:20,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:15:20 BoogieIcfgContainer [2022-11-25 23:15:20,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:15:20,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:15:20,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:15:20,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:15:20,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:15:19" (1/3) ... [2022-11-25 23:15:20,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b30aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:15:20, skipping insertion in model container [2022-11-25 23:15:20,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:19" (2/3) ... [2022-11-25 23:15:20,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b30aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:15:20, skipping insertion in model container [2022-11-25 23:15:20,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:15:20" (3/3) ... [2022-11-25 23:15:20,558 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2022-11-25 23:15:20,582 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:15:20,582 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:15:20,651 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:15:20,658 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@76ac5d4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:15:20,659 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:15:20,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 27 states have internal predecessors, (43), 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) [2022-11-25 23:15:20,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:15:20,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:20,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:15:20,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:15:20,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:20,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1717802002, now seen corresponding path program 1 times [2022-11-25 23:15:20,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:20,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354106948] [2022-11-25 23:15:20,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:20,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:20,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:15:20,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:20,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354106948] [2022-11-25 23:15:20,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354106948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:20,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:20,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:15:20,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885640121] [2022-11-25 23:15:20,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:20,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:15:20,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:20,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:15:20,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:15:20,982 INFO L87 Difference]: Start difference. First operand has 28 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 27 states have internal predecessors, (43), 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) [2022-11-25 23:15:21,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:21,043 INFO L93 Difference]: Finished difference Result 55 states and 85 transitions. [2022-11-25 23:15:21,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:15:21,046 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 [2022-11-25 23:15:21,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:21,056 INFO L225 Difference]: With dead ends: 55 [2022-11-25 23:15:21,056 INFO L226 Difference]: Without dead ends: 26 [2022-11-25 23:15:21,061 INFO L412 NwaCegarLoop]: 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 [2022-11-25 23:15:21,065 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:21,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:15:21,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-25 23:15:21,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-25 23:15:21,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 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) [2022-11-25 23:15:21,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-11-25 23:15:21,108 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 10 [2022-11-25 23:15:21,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:21,109 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-11-25 23:15:21,110 INFO L496 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) [2022-11-25 23:15:21,111 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-11-25 23:15:21,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 23:15:21,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:21,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:15:21,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:15:21,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:15:21,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:21,114 INFO L85 PathProgramCache]: Analyzing trace with hash 22106864, now seen corresponding path program 1 times [2022-11-25 23:15:21,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:21,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009219190] [2022-11-25 23:15:21,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:21,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:15:21,232 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:15:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:15:21,318 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:15:21,319 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:15:21,321 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 23:15:21,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:15:21,326 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 23:15:21,330 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:15:21,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:15:21 BoogieIcfgContainer [2022-11-25 23:15:21,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:15:21,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:15:21,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:15:21,361 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:15:21,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:15:20" (3/4) ... [2022-11-25 23:15:21,365 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:15:21,365 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:15:21,366 INFO L158 Benchmark]: Toolchain (without parser) took 1883.14ms. Allocated memory is still 157.3MB. Free memory was 130.5MB in the beginning and 57.7MB in the end (delta: 72.8MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2022-11-25 23:15:21,366 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:15:21,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.85ms. Allocated memory is still 157.3MB. Free memory was 130.5MB in the beginning and 118.1MB in the end (delta: 12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 23:15:21,367 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.33ms. Allocated memory is still 157.3MB. Free memory was 118.1MB in the beginning and 115.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:15:21,368 INFO L158 Benchmark]: Boogie Preprocessor took 68.64ms. Allocated memory is still 157.3MB. Free memory was 115.4MB in the beginning and 113.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:15:21,369 INFO L158 Benchmark]: RCFGBuilder took 608.99ms. Allocated memory is still 157.3MB. Free memory was 113.4MB in the beginning and 91.8MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 23:15:21,369 INFO L158 Benchmark]: TraceAbstraction took 811.80ms. Allocated memory is still 157.3MB. Free memory was 91.3MB in the beginning and 57.7MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-25 23:15:21,370 INFO L158 Benchmark]: Witness Printer took 4.57ms. Allocated memory is still 157.3MB. Free memory is still 57.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:15:21,373 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.85ms. Allocated memory is still 157.3MB. Free memory was 130.5MB in the beginning and 118.1MB in the end (delta: 12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.33ms. Allocated memory is still 157.3MB. Free memory was 118.1MB in the beginning and 115.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.64ms. Allocated memory is still 157.3MB. Free memory was 115.4MB in the beginning and 113.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 608.99ms. Allocated memory is still 157.3MB. Free memory was 113.4MB in the beginning and 91.8MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 811.80ms. Allocated memory is still 157.3MB. Free memory was 91.3MB in the beginning and 57.7MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.57ms. Allocated memory is still 157.3MB. Free memory is still 57.7MB. 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: 161]: 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 54, overapproximation of bitwiseAnd at line 75, overapproximation of someBinaryArithmeticDOUBLEoperation at line 84, overapproximation of someBinaryDOUBLEComparisonOperation at line 160. 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; [L156] double x = 0.0; [L157] CALL, EXPR atan_double(x) [L67] double w, s1, s2, z; [L68] __int32_t ix, hx, id; VAL [\old(x)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L71] ieee_double_shape_type gh_u; [L72] gh_u.value = (x) [L73] EXPR gh_u.parts.msw [L73] (hx) = gh_u.parts.msw [L75] ix = hx & 0x7fffffff VAL [\old(x)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, ix=2146435072, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L76] COND TRUE ix >= 0x44100000 [L77] __uint32_t low; VAL [\old(x)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, ix=2146435072, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L79] ieee_double_shape_type gl_u; [L80] gl_u.value = (x) [L81] EXPR gl_u.parts.lsw [L81] (low) = gl_u.parts.lsw [L83] COND FALSE !(ix > 0x7ff00000 || (ix == 0x7ff00000 && (low != 0))) [L85] COND FALSE !(hx > 0) [L88] EXPR atanhi_atan[3] [L88] EXPR atanlo_atan[3] [L88] return -atanhi_atan[3] - atanlo_atan[3]; [L157] RET, EXPR atan_double(x) [L157] double res = atan_double(x); [L160] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L160] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L161] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 26 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 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 [2022-11-25 23:15:21,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur --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 a2c42a61f78a6f1a62fbe64821c08eae311814302de1dfe9812261f1f96648c5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:15:23,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:15:23,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:15:23,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:15:23,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:15:23,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:15:23,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:15:23,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:15:23,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:15:23,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:15:23,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:15:23,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:15:23,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:15:23,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:15:23,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:15:23,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:15:23,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:15:23,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:15:23,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:15:23,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:15:23,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:15:23,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:15:23,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:15:23,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:15:23,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:15:23,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:15:23,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:15:23,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:15:23,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:15:23,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:15:23,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:15:23,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:15:23,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:15:23,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:15:23,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:15:23,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:15:23,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:15:23,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:15:23,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:15:23,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:15:23,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:15:23,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-25 23:15:23,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:15:23,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:15:23,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:15:23,848 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:15:23,849 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:15:23,849 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:15:23,849 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:15:23,849 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:15:23,850 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:15:23,850 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:15:23,851 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:15:23,851 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:15:23,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:15:23,853 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:15:23,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:15:23,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:15:23,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:15:23,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:15:23,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:15:23,854 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:15:23,855 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:15:23,855 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:15:23,855 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:15:23,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:15:23,856 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:15:23,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:15:23,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:15:23,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:15:23,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:15:23,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:15:23,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:15:23,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:15:23,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:15:23,858 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:15:23,859 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:15:23,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:15:23,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:15:23,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:15:23,860 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_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2c42a61f78a6f1a62fbe64821c08eae311814302de1dfe9812261f1f96648c5 [2022-11-25 23:15:24,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:15:24,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:15:24,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:15:24,308 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:15:24,309 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:15:24,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2022-11-25 23:15:27,254 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:15:27,512 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:15:27,513 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2022-11-25 23:15:27,521 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/data/6ef092378/7fc0c994ae6549208389f6faa21e6e5e/FLAG98deabe0c [2022-11-25 23:15:27,534 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/data/6ef092378/7fc0c994ae6549208389f6faa21e6e5e [2022-11-25 23:15:27,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:15:27,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:15:27,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:15:27,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:15:27,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:15:27,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:15:27" (1/1) ... [2022-11-25 23:15:27,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@762e4c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:27, skipping insertion in model container [2022-11-25 23:15:27,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:15:27" (1/1) ... [2022-11-25 23:15:27,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:15:27,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:15:27,742 WARN L237 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_19c22a57-f7aa-44e8-aca1-5b24d8939a92/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c[3928,3941] [2022-11-25 23:15:27,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:15:27,761 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:15:27,800 WARN L237 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_19c22a57-f7aa-44e8-aca1-5b24d8939a92/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c[3928,3941] [2022-11-25 23:15:27,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:15:27,824 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:15:27,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:27 WrapperNode [2022-11-25 23:15:27,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:15:27,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:15:27,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:15:27,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:15:27,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:27" (1/1) ... [2022-11-25 23:15:27,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:27" (1/1) ... [2022-11-25 23:15:27,897 INFO L138 Inliner]: procedures = 22, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 206 [2022-11-25 23:15:27,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:15:27,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:15:27,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:15:27,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:15:27,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:27" (1/1) ... [2022-11-25 23:15:27,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:27" (1/1) ... [2022-11-25 23:15:27,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:27" (1/1) ... [2022-11-25 23:15:27,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:27" (1/1) ... [2022-11-25 23:15:27,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:27" (1/1) ... [2022-11-25 23:15:27,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:27" (1/1) ... [2022-11-25 23:15:27,988 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:27" (1/1) ... [2022-11-25 23:15:27,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:27" (1/1) ... [2022-11-25 23:15:27,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:15:27,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:15:27,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:15:27,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:15:27,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:27" (1/1) ... [2022-11-25 23:15:28,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:15:28,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:15:28,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:15:28,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:15:28,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:15:28,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-25 23:15:28,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-25 23:15:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:15:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:15:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-11-25 23:15:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 23:15:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:15:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 23:15:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:15:28,222 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:15:28,224 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:15:45,465 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:15:45,472 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:15:45,473 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-25 23:15:45,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:15:45 BoogieIcfgContainer [2022-11-25 23:15:45,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:15:45,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:15:45,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:15:45,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:15:45,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:15:27" (1/3) ... [2022-11-25 23:15:45,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a55ed2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:15:45, skipping insertion in model container [2022-11-25 23:15:45,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:27" (2/3) ... [2022-11-25 23:15:45,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a55ed2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:15:45, skipping insertion in model container [2022-11-25 23:15:45,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:15:45" (3/3) ... [2022-11-25 23:15:45,493 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2022-11-25 23:15:45,514 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:15:45,514 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:15:45,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:15:45,591 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7b20c532, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:15:45,592 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:15:45,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 36 states have internal predecessors, (58), 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) [2022-11-25 23:15:45,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:15:45,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:45,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:15:45,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:15:45,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:45,615 INFO L85 PathProgramCache]: Analyzing trace with hash 2040627590, now seen corresponding path program 1 times [2022-11-25 23:15:45,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:15:45,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746811058] [2022-11-25 23:15:45,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:45,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:15:45,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:15:45,634 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:15:45,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 23:15:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:45,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 23:15:45,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:15:46,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:15:46,004 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:15:46,006 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:15:46,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746811058] [2022-11-25 23:15:46,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746811058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:46,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:46,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:15:46,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965385809] [2022-11-25 23:15:46,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:46,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:15:46,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:15:46,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:15:46,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:15:46,058 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 36 states have internal predecessors, (58), 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) [2022-11-25 23:15:46,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:46,083 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2022-11-25 23:15:46,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:15:46,089 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 [2022-11-25 23:15:46,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:46,101 INFO L225 Difference]: With dead ends: 72 [2022-11-25 23:15:46,101 INFO L226 Difference]: Without dead ends: 34 [2022-11-25 23:15:46,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:15:46,111 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:46,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:15:46,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-25 23:15:46,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-25 23:15:46,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 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) [2022-11-25 23:15:46,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2022-11-25 23:15:46,168 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 11 [2022-11-25 23:15:46,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:46,169 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2022-11-25 23:15:46,169 INFO L496 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) [2022-11-25 23:15:46,170 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2022-11-25 23:15:46,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:15:46,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:46,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:15:46,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:15:46,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:15:46,390 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:15:46,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:46,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1317047864, now seen corresponding path program 1 times [2022-11-25 23:15:46,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:15:46,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509369591] [2022-11-25 23:15:46,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:46,392 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:15:46,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:15:46,393 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:15:46,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 23:15:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:46,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 23:15:46,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:15:47,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:15:47,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:15:47,795 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:15:47,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509369591] [2022-11-25 23:15:47,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509369591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:47,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:47,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:15:47,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914474576] [2022-11-25 23:15:47,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:47,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:15:47,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:15:47,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:15:47,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:15:47,811 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-11-25 23:15:52,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:15:55,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:15:58,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:16:00,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:16:00,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:16:00,022 INFO L93 Difference]: Finished difference Result 55 states and 66 transitions. [2022-11-25 23:16:00,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:16:00,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2022-11-25 23:16:00,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:16:00,126 INFO L225 Difference]: With dead ends: 55 [2022-11-25 23:16:00,126 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 23:16:00,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:16:00,128 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 49 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:16:00,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 4 Unknown, 0 Unchecked, 11.8s Time] [2022-11-25 23:16:00,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 23:16:00,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 21. [2022-11-25 23:16:00,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 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) [2022-11-25 23:16:00,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-11-25 23:16:00,133 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 13 [2022-11-25 23:16:00,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:16:00,133 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-11-25 23:16:00,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-11-25 23:16:00,133 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-11-25 23:16:00,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:16:00,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:00,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:16:00,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:16:00,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:16:00,335 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:16:00,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:00,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1439907395, now seen corresponding path program 1 times [2022-11-25 23:16:00,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:16:00,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744763618] [2022-11-25 23:16:00,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:00,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:16:00,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:16:00,338 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:16:00,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 23:16:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:16:00,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 23:16:00,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:16:01,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:16:01,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:16:01,737 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:16:01,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744763618] [2022-11-25 23:16:01,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744763618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:16:01,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:16:01,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:16:01,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729870618] [2022-11-25 23:16:01,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:16:01,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:16:01,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:16:01,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:16:01,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:16:01,741 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-11-25 23:16:07,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:16:10,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:16:12,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:16:14,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:16:16,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:16:16,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:16:16,746 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2022-11-25 23:16:16,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:16:16,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2022-11-25 23:16:16,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:16:16,748 INFO L225 Difference]: With dead ends: 33 [2022-11-25 23:16:16,748 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 23:16:16,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:16:16,752 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 26 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:16:16,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 55 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 5 Unknown, 0 Unchecked, 14.5s Time] [2022-11-25 23:16:16,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 23:16:16,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2022-11-25 23:16:16,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:16,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-11-25 23:16:16,763 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 13 [2022-11-25 23:16:16,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:16:16,764 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-11-25 23:16:16,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-11-25 23:16:16,765 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-25 23:16:16,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 23:16:16,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:16,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:16:16,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:16:16,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:16:16,985 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:16:16,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:16,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1040956609, now seen corresponding path program 1 times [2022-11-25 23:16:16,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:16:16,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [585894195] [2022-11-25 23:16:16,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:16,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:16:16,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:16:16,989 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:16:16,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 23:16:17,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 139 [2022-11-25 23:16:17,495 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-25 23:16:17,500 INFO L158 Benchmark]: Toolchain (without parser) took 49961.51ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 53.6MB in the beginning and 61.6MB in the end (delta: -8.0MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-11-25 23:16:17,500 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 75.5MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:16:17,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.36ms. Allocated memory is still 75.5MB. Free memory was 53.3MB in the beginning and 39.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 23:16:17,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.54ms. Allocated memory is still 75.5MB. Free memory was 39.7MB in the beginning and 54.9MB in the end (delta: -15.2MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-11-25 23:16:17,502 INFO L158 Benchmark]: Boogie Preprocessor took 90.60ms. Allocated memory is still 75.5MB. Free memory was 54.9MB in the beginning and 52.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:16:17,502 INFO L158 Benchmark]: RCFGBuilder took 17483.40ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 52.3MB in the beginning and 68.8MB in the end (delta: -16.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 23:16:17,503 INFO L158 Benchmark]: TraceAbstraction took 32015.90ms. Allocated memory is still 100.7MB. Free memory was 68.1MB in the beginning and 61.6MB in the end (delta: 6.5MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-11-25 23:16:17,505 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 75.5MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.36ms. Allocated memory is still 75.5MB. Free memory was 53.3MB in the beginning and 39.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.54ms. Allocated memory is still 75.5MB. Free memory was 39.7MB in the beginning and 54.9MB in the end (delta: -15.2MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.60ms. Allocated memory is still 75.5MB. Free memory was 54.9MB in the beginning and 52.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 17483.40ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 52.3MB in the beginning and 68.8MB in the end (delta: -16.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 32015.90ms. Allocated memory is still 100.7MB. Free memory was 68.1MB in the beginning and 61.6MB in the end (delta: 6.5MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-25 23:16:17,716 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-25 23:16:17,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/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: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c22a57-f7aa-44e8-aca1-5b24d8939a92/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output.