./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_3+newton_1_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh --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 0e37b49a93872e76fb66cf7e4502a946df76771dec4178760379f31632a44194 --- 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-2329fc7 [2022-12-14 04:44:05,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:44:05,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:44:05,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:44:05,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:44:05,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:44:05,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:44:05,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:44:05,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:44:05,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:44:05,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:44:05,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:44:05,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:44:05,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:44:05,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:44:05,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:44:05,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:44:05,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:44:05,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:44:05,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:44:05,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:44:05,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:44:05,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:44:05,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:44:05,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:44:05,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:44:05,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:44:05,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:44:05,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:44:05,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:44:05,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:44:05,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:44:05,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:44:05,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:44:05,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:44:05,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:44:05,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:44:05,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:44:05,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:44:05,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:44:05,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:44:05,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 04:44:05,751 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:44:05,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:44:05,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:44:05,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:44:05,752 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:44:05,752 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:44:05,753 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:44:05,753 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:44:05,753 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:44:05,753 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 04:44:05,753 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:44:05,754 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:44:05,754 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 04:44:05,754 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 04:44:05,754 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:44:05,754 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 04:44:05,755 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 04:44:05,755 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 04:44:05,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:44:05,756 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 04:44:05,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 04:44:05,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 04:44:05,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:44:05,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 04:44:05,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:44:05,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 04:44:05,757 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 04:44:05,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 04:44:05,757 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:44:05,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 04:44:05,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:44:05,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:44:05,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:44:05,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:44:05,758 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 04:44:05,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:44:05,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 04:44:05,759 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 04:44:05,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 04:44:05,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 04:44:05,759 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:44:05,760 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_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e37b49a93872e76fb66cf7e4502a946df76771dec4178760379f31632a44194 [2022-12-14 04:44:05,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:44:05,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:44:05,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:44:05,985 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:44:05,986 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:44:05,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/combinations/gcd_3+newton_1_7.i [2022-12-14 04:44:08,626 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:44:08,767 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:44:08,768 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/sv-benchmarks/c/combinations/gcd_3+newton_1_7.i [2022-12-14 04:44:08,773 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/data/ea38fa1b3/77e0c8f3dc3d48149cc544d9b95747ce/FLAGbb5076758 [2022-12-14 04:44:08,784 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/data/ea38fa1b3/77e0c8f3dc3d48149cc544d9b95747ce [2022-12-14 04:44:08,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:44:08,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:44:08,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:44:08,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:44:08,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:44:08,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:44:08" (1/1) ... [2022-12-14 04:44:08,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@95ab027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:08, skipping insertion in model container [2022-12-14 04:44:08,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:44:08" (1/1) ... [2022-12-14 04:44:08,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:44:08,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:44:08,925 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_081a136b-f2af-41bc-a6a2-6d56000e6a13/sv-benchmarks/c/combinations/gcd_3+newton_1_7.i[1226,1239] [2022-12-14 04:44:08,942 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_081a136b-f2af-41bc-a6a2-6d56000e6a13/sv-benchmarks/c/combinations/gcd_3+newton_1_7.i[2820,2833] [2022-12-14 04:44:08,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:44:08,951 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:44:08,960 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_081a136b-f2af-41bc-a6a2-6d56000e6a13/sv-benchmarks/c/combinations/gcd_3+newton_1_7.i[1226,1239] [2022-12-14 04:44:08,967 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_081a136b-f2af-41bc-a6a2-6d56000e6a13/sv-benchmarks/c/combinations/gcd_3+newton_1_7.i[2820,2833] [2022-12-14 04:44:08,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:44:08,978 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:44:08,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:08 WrapperNode [2022-12-14 04:44:08,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:44:08,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:44:08,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:44:08,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:44:08,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:08" (1/1) ... [2022-12-14 04:44:08,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:08" (1/1) ... [2022-12-14 04:44:09,014 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 86 [2022-12-14 04:44:09,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:44:09,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:44:09,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:44:09,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:44:09,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:08" (1/1) ... [2022-12-14 04:44:09,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:08" (1/1) ... [2022-12-14 04:44:09,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:08" (1/1) ... [2022-12-14 04:44:09,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:08" (1/1) ... [2022-12-14 04:44:09,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:08" (1/1) ... [2022-12-14 04:44:09,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:08" (1/1) ... [2022-12-14 04:44:09,037 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:08" (1/1) ... [2022-12-14 04:44:09,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:08" (1/1) ... [2022-12-14 04:44:09,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:44:09,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:44:09,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:44:09,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:44:09,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:08" (1/1) ... [2022-12-14 04:44:09,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:44:09,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:44:09,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:44:09,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:44:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 04:44:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 04:44:09,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:44:09,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:44:09,158 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:44:09,160 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:44:09,275 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:44:09,319 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:44:09,319 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 04:44:09,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:44:09 BoogieIcfgContainer [2022-12-14 04:44:09,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:44:09,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:44:09,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:44:09,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:44:09,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:44:08" (1/3) ... [2022-12-14 04:44:09,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56513fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:44:09, skipping insertion in model container [2022-12-14 04:44:09,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:08" (2/3) ... [2022-12-14 04:44:09,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56513fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:44:09, skipping insertion in model container [2022-12-14 04:44:09,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:44:09" (3/3) ... [2022-12-14 04:44:09,327 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_7.i [2022-12-14 04:44:09,341 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:44:09,341 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 04:44:09,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:44:09,380 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;@730bfd2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:44:09,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 04:44:09,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:44:09,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 04:44:09,387 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:44:09,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 04:44:09,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:44:09,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:44:09,393 INFO L85 PathProgramCache]: Analyzing trace with hash 3514600, now seen corresponding path program 1 times [2022-12-14 04:44:09,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:44:09,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42188966] [2022-12-14 04:44:09,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:44:09,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:44:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:44:09,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 04:44:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:44:09,494 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 04:44:09,495 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 04:44:09,496 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-14 04:44:09,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-14 04:44:09,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 04:44:09,501 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 04:44:09,504 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 04:44:09,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:44:09 BoogieIcfgContainer [2022-12-14 04:44:09,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 04:44:09,518 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 04:44:09,518 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 04:44:09,518 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 04:44:09,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:44:09" (3/4) ... [2022-12-14 04:44:09,521 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 04:44:09,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 04:44:09,521 INFO L158 Benchmark]: Toolchain (without parser) took 734.66ms. Allocated memory is still 153.1MB. Free memory was 107.8MB in the beginning and 104.0MB in the end (delta: 3.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2022-12-14 04:44:09,522 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory was 75.1MB in the beginning and 75.1MB in the end (delta: 30.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:44:09,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.56ms. Allocated memory is still 153.1MB. Free memory was 107.8MB in the beginning and 96.4MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 04:44:09,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.00ms. Allocated memory is still 153.1MB. Free memory was 96.4MB in the beginning and 94.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:44:09,523 INFO L158 Benchmark]: Boogie Preprocessor took 25.25ms. Allocated memory is still 153.1MB. Free memory was 94.6MB in the beginning and 93.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:44:09,523 INFO L158 Benchmark]: RCFGBuilder took 279.64ms. Allocated memory is still 153.1MB. Free memory was 93.0MB in the beginning and 118.7MB in the end (delta: -25.6MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2022-12-14 04:44:09,523 INFO L158 Benchmark]: TraceAbstraction took 194.74ms. Allocated memory is still 153.1MB. Free memory was 117.5MB in the beginning and 104.0MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 04:44:09,524 INFO L158 Benchmark]: Witness Printer took 3.15ms. Allocated memory is still 153.1MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:44:09,526 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory was 75.1MB in the beginning and 75.1MB in the end (delta: 30.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 191.56ms. Allocated memory is still 153.1MB. Free memory was 107.8MB in the beginning and 96.4MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.00ms. Allocated memory is still 153.1MB. Free memory was 96.4MB in the beginning and 94.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.25ms. Allocated memory is still 153.1MB. Free memory was 94.6MB in the beginning and 93.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 279.64ms. Allocated memory is still 153.1MB. Free memory was 93.0MB in the beginning and 118.7MB in the end (delta: -25.6MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * TraceAbstraction took 194.74ms. Allocated memory is still 153.1MB. Free memory was 117.5MB in the beginning and 104.0MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 3.15ms. Allocated memory is still 153.1MB. Free memory is still 104.0MB. 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: 102]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 80. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=109] [L102] reach_error() VAL [IN=109] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-12-14 04:44:09,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/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_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh --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 0e37b49a93872e76fb66cf7e4502a946df76771dec4178760379f31632a44194 --- 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-2329fc7 [2022-12-14 04:44:11,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:44:11,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:44:11,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:44:11,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:44:11,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:44:11,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:44:11,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:44:11,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:44:11,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:44:11,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:44:11,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:44:11,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:44:11,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:44:11,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:44:11,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:44:11,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:44:11,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:44:11,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:44:11,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:44:11,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:44:11,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:44:11,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:44:11,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:44:11,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:44:11,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:44:11,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:44:11,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:44:11,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:44:11,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:44:11,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:44:11,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:44:11,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:44:11,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:44:11,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:44:11,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:44:11,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:44:11,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:44:11,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:44:11,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:44:11,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:44:11,277 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 04:44:11,292 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:44:11,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:44:11,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:44:11,293 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:44:11,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:44:11,293 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:44:11,294 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:44:11,294 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:44:11,294 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:44:11,294 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:44:11,294 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:44:11,294 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:44:11,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:44:11,295 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 04:44:11,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 04:44:11,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:44:11,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 04:44:11,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:44:11,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 04:44:11,295 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 04:44:11,295 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 04:44:11,295 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 04:44:11,295 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 04:44:11,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 04:44:11,296 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:44:11,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 04:44:11,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:44:11,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 04:44:11,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:44:11,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:44:11,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:44:11,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:44:11,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 04:44:11,297 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 04:44:11,297 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 04:44:11,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 04:44:11,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:44:11,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 04:44:11,297 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_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e37b49a93872e76fb66cf7e4502a946df76771dec4178760379f31632a44194 [2022-12-14 04:44:11,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:44:11,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:44:11,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:44:11,541 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:44:11,541 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:44:11,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/combinations/gcd_3+newton_1_7.i [2022-12-14 04:44:14,164 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:44:14,286 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:44:14,287 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/sv-benchmarks/c/combinations/gcd_3+newton_1_7.i [2022-12-14 04:44:14,292 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/data/25f5a27f5/282881dea7db4bb4a823b4a503576aac/FLAGbd4e4429c [2022-12-14 04:44:14,302 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/data/25f5a27f5/282881dea7db4bb4a823b4a503576aac [2022-12-14 04:44:14,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:44:14,305 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:44:14,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:44:14,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:44:14,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:44:14,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:44:14" (1/1) ... [2022-12-14 04:44:14,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a5601fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:14, skipping insertion in model container [2022-12-14 04:44:14,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:44:14" (1/1) ... [2022-12-14 04:44:14,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:44:14,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:44:14,454 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_081a136b-f2af-41bc-a6a2-6d56000e6a13/sv-benchmarks/c/combinations/gcd_3+newton_1_7.i[1226,1239] [2022-12-14 04:44:14,471 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_081a136b-f2af-41bc-a6a2-6d56000e6a13/sv-benchmarks/c/combinations/gcd_3+newton_1_7.i[2820,2833] [2022-12-14 04:44:14,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:44:14,481 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:44:14,491 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_081a136b-f2af-41bc-a6a2-6d56000e6a13/sv-benchmarks/c/combinations/gcd_3+newton_1_7.i[1226,1239] [2022-12-14 04:44:14,498 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_081a136b-f2af-41bc-a6a2-6d56000e6a13/sv-benchmarks/c/combinations/gcd_3+newton_1_7.i[2820,2833] [2022-12-14 04:44:14,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:44:14,510 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:44:14,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:14 WrapperNode [2022-12-14 04:44:14,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:44:14,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:44:14,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:44:14,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:44:14,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:14" (1/1) ... [2022-12-14 04:44:14,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:14" (1/1) ... [2022-12-14 04:44:14,547 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 81 [2022-12-14 04:44:14,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:44:14,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:44:14,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:44:14,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:44:14,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:14" (1/1) ... [2022-12-14 04:44:14,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:14" (1/1) ... [2022-12-14 04:44:14,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:14" (1/1) ... [2022-12-14 04:44:14,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:14" (1/1) ... [2022-12-14 04:44:14,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:14" (1/1) ... [2022-12-14 04:44:14,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:14" (1/1) ... [2022-12-14 04:44:14,572 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:14" (1/1) ... [2022-12-14 04:44:14,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:14" (1/1) ... [2022-12-14 04:44:14,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:44:14,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:44:14,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:44:14,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:44:14,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:14" (1/1) ... [2022-12-14 04:44:14,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:44:14,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:44:14,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:44:14,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:44:14,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 04:44:14,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 04:44:14,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:44:14,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:44:14,692 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:44:14,694 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:44:21,135 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:44:21,140 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:44:21,140 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 04:44:21,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:44:21 BoogieIcfgContainer [2022-12-14 04:44:21,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:44:21,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:44:21,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:44:21,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:44:21,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:44:14" (1/3) ... [2022-12-14 04:44:21,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6875fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:44:21, skipping insertion in model container [2022-12-14 04:44:21,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:14" (2/3) ... [2022-12-14 04:44:21,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6875fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:44:21, skipping insertion in model container [2022-12-14 04:44:21,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:44:21" (3/3) ... [2022-12-14 04:44:21,150 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_7.i [2022-12-14 04:44:21,163 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:44:21,164 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 04:44:21,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:44:21,205 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;@4e460ade, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:44:21,205 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 04:44:21,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:44:21,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 04:44:21,213 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:44:21,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:44:21,214 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:44:21,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:44:21,217 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-12-14 04:44:21,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:44:21,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504576617] [2022-12-14 04:44:21,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:44:21,226 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 [2022-12-14 04:44:21,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:44:21,227 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:44:21,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:44:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:44:22,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 04:44:22,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:44:22,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:44:22,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:44:22,338 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 04:44:22,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504576617] [2022-12-14 04:44:22,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504576617] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:44:22,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:44:22,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 04:44:22,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731398414] [2022-12-14 04:44:22,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:44:22,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 04:44:22,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 04:44:22,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 04:44:22,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 04:44:22,364 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:44:22,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:44:22,375 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-12-14 04:44:22,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 04:44:22,377 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 04:44:22,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:44:22,381 INFO L225 Difference]: With dead ends: 47 [2022-12-14 04:44:22,382 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 04:44:22,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 04:44:22,386 INFO L413 NwaCegarLoop]: 31 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, 31 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 [2022-12-14 04:44:22,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:44:22,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 04:44:22,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 04:44:22,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:44:22,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-14 04:44:22,407 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-12-14 04:44:22,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:44:22,407 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-14 04:44:22,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:44:22,408 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-14 04:44:22,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 04:44:22,408 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:44:22,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:44:22,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:44:22,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:44:22,611 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:44:22,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:44:22,612 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-12-14 04:44:22,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:44:22,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [868844199] [2022-12-14 04:44:22,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:44:22,615 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 [2022-12-14 04:44:22,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:44:22,618 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:44:22,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:44:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:44:45,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 04:45:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:45:20,511 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 04:45:20,511 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 04:45:20,513 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-14 04:45:20,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-14 04:45:20,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 04:45:20,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:45:20,725 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 04:45:20,735 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 04:45:20,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:45:20 BoogieIcfgContainer [2022-12-14 04:45:20,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 04:45:20,770 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 04:45:20,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 04:45:20,770 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 04:45:20,771 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:44:21" (3/4) ... [2022-12-14 04:45:20,772 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 04:45:20,799 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 04:45:20,799 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 04:45:20,800 INFO L158 Benchmark]: Toolchain (without parser) took 66494.78ms. Allocated memory is still 90.2MB. Free memory was 50.3MB in the beginning and 64.3MB in the end (delta: -14.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:45:20,800 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:45:20,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.67ms. Allocated memory is still 90.2MB. Free memory was 50.1MB in the beginning and 61.8MB in the end (delta: -11.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 04:45:20,801 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.93ms. Allocated memory is still 90.2MB. Free memory was 61.8MB in the beginning and 60.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:45:20,801 INFO L158 Benchmark]: Boogie Preprocessor took 28.09ms. Allocated memory is still 90.2MB. Free memory was 59.7MB in the beginning and 58.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:45:20,802 INFO L158 Benchmark]: RCFGBuilder took 6564.89ms. Allocated memory is still 90.2MB. Free memory was 58.3MB in the beginning and 46.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 04:45:20,802 INFO L158 Benchmark]: TraceAbstraction took 59625.20ms. Allocated memory is still 90.2MB. Free memory was 45.4MB in the beginning and 66.0MB in the end (delta: -20.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:45:20,803 INFO L158 Benchmark]: Witness Printer took 29.39ms. Allocated memory is still 90.2MB. Free memory was 66.0MB in the beginning and 64.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:45:20,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.67ms. Allocated memory is still 90.2MB. Free memory was 50.1MB in the beginning and 61.8MB in the end (delta: -11.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.93ms. Allocated memory is still 90.2MB. Free memory was 61.8MB in the beginning and 60.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.09ms. Allocated memory is still 90.2MB. Free memory was 59.7MB in the beginning and 58.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6564.89ms. Allocated memory is still 90.2MB. Free memory was 58.3MB in the beginning and 46.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 59625.20ms. Allocated memory is still 90.2MB. Free memory was 45.4MB in the beginning and 66.0MB in the end (delta: -20.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 29.39ms. Allocated memory is still 90.2MB. Free memory was 66.0MB in the beginning and 64.3MB in the end (delta: 1.7MB). 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 - CounterExampleResult [Line: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.3676449060440063, \result=-0.982941746711731, x=-1.3676449060440063] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.3676449060440063, \result=0.2196372151374817, x=-1.3676449060440063] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-1.3676449060440063, x=3.107652187347412] [L102] reach_error() VAL [IN=-1.3676449060440063, x=3.107652187347412] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 59.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 23.8s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 1 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 proved your program to be incorrect! [2022-12-14 04:45:20,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081a136b-f2af-41bc-a6a2-6d56000e6a13/bin/utaipan-gh47qXpMRh/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE