./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI --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 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 --- 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-5e519f3 [2022-11-03 03:59:38,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:59:38,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:59:38,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:59:38,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:59:38,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:59:38,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:59:38,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:59:38,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:59:38,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:59:38,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:59:38,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:59:38,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:59:38,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:59:38,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:59:38,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:59:38,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:59:38,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:59:38,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:59:38,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:59:38,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:59:38,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:59:38,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:59:38,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:59:39,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:59:39,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:59:39,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:59:39,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:59:39,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:59:39,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:59:39,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:59:39,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:59:39,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:59:39,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:59:39,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:59:39,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:59:39,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:59:39,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:59:39,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:59:39,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:59:39,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:59:39,025 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:59:39,072 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:59:39,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:59:39,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:59:39,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:59:39,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:59:39,075 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:59:39,075 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:59:39,076 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:59:39,076 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:59:39,076 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:59:39,077 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:59:39,078 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:59:39,078 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:59:39,079 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:59:39,079 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:59:39,079 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:59:39,080 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:59:39,080 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:59:39,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:59:39,081 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:59:39,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:59:39,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:59:39,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:59:39,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:59:39,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:59:39,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:59:39,084 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:59:39,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:59:39,084 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:59:39,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:59:39,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:59:39,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:59:39,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:59:39,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:59:39,086 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:59:39,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:59:39,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:59:39,087 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:59:39,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:59:39,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:59:39,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:59:39,089 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_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 [2022-11-03 03:59:39,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:59:39,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:59:39,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:59:39,546 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:59:39,547 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:59:39,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-11-03 03:59:39,649 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/data/44b56d900/e9f82da545f642519f887859d1290de1/FLAGeb4e0eb74 [2022-11-03 03:59:40,162 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:59:40,162 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-11-03 03:59:40,172 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/data/44b56d900/e9f82da545f642519f887859d1290de1/FLAGeb4e0eb74 [2022-11-03 03:59:40,517 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/data/44b56d900/e9f82da545f642519f887859d1290de1 [2022-11-03 03:59:40,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:59:40,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:59:40,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:59:40,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:59:40,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:59:40,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:40" (1/1) ... [2022-11-03 03:59:40,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1d96e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40, skipping insertion in model container [2022-11-03 03:59:40,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:40" (1/1) ... [2022-11-03 03:59:40,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:59:40,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:59:40,823 WARN L230 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_44028c3a-ae75-44c8-b424-d1414b43ffed/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2022-11-03 03:59:40,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:59:40,834 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:59:40,873 WARN L230 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_44028c3a-ae75-44c8-b424-d1414b43ffed/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2022-11-03 03:59:40,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:59:40,889 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:59:40,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40 WrapperNode [2022-11-03 03:59:40,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:59:40,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:59:40,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:59:40,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:59:40,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2022-11-03 03:59:40,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2022-11-03 03:59:40,924 INFO L138 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-11-03 03:59:40,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:59:40,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:59:40,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:59:40,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:59:40,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2022-11-03 03:59:40,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2022-11-03 03:59:40,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2022-11-03 03:59:40,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2022-11-03 03:59:40,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2022-11-03 03:59:40,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2022-11-03 03:59:40,945 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2022-11-03 03:59:40,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2022-11-03 03:59:40,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:59:40,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:59:40,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:59:40,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:59:40,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2022-11-03 03:59:40,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:59:40,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:40,989 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:59:41,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:59:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:59:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-03 03:59:41,028 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-03 03:59:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-03 03:59:41,028 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-03 03:59:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:59:41,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:59:41,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:59:41,093 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:59:41,095 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:59:41,274 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:59:41,361 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:59:41,361 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:59:41,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:41 BoogieIcfgContainer [2022-11-03 03:59:41,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:59:41,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:59:41,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:59:41,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:59:41,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:59:40" (1/3) ... [2022-11-03 03:59:41,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c25f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:59:41, skipping insertion in model container [2022-11-03 03:59:41,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (2/3) ... [2022-11-03 03:59:41,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c25f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:59:41, skipping insertion in model container [2022-11-03 03:59:41,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:41" (3/3) ... [2022-11-03 03:59:41,389 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_7.i [2022-11-03 03:59:41,425 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:59:41,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:59:41,522 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:59:41,534 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;@4b32015e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:59:41,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:59:41,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 03:59:41,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:59:41,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:41,554 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:41,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:41,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:41,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1117148870, now seen corresponding path program 1 times [2022-11-03 03:59:41,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:41,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427580408] [2022-11-03 03:59:41,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:41,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:59:41,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 03:59:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:59:41,846 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 03:59:41,848 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 03:59:41,850 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:59:41,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:59:41,860 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-03 03:59:41,865 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:59:41,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:59:41 BoogieIcfgContainer [2022-11-03 03:59:41,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:59:41,911 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:59:41,912 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:59:41,912 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:59:41,913 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:41" (3/4) ... [2022-11-03 03:59:41,920 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 03:59:41,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:59:41,922 INFO L158 Benchmark]: Toolchain (without parser) took 1397.11ms. Allocated memory is still 161.5MB. Free memory was 126.1MB in the beginning and 107.2MB in the end (delta: 18.9MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-11-03 03:59:41,922 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 94.4MB. Free memory was 68.0MB in the beginning and 68.0MB in the end (delta: 32.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:59:41,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.11ms. Allocated memory is still 161.5MB. Free memory was 126.1MB in the beginning and 136.5MB in the end (delta: -10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 03:59:41,925 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.46ms. Allocated memory is still 161.5MB. Free memory was 136.5MB in the beginning and 134.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:59:41,925 INFO L158 Benchmark]: Boogie Preprocessor took 22.00ms. Allocated memory is still 161.5MB. Free memory was 134.9MB in the beginning and 133.9MB in the end (delta: 992.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:59:41,931 INFO L158 Benchmark]: RCFGBuilder took 416.67ms. Allocated memory is still 161.5MB. Free memory was 133.9MB in the beginning and 122.8MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 03:59:41,932 INFO L158 Benchmark]: TraceAbstraction took 542.86ms. Allocated memory is still 161.5MB. Free memory was 122.3MB in the beginning and 107.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-03 03:59:41,933 INFO L158 Benchmark]: Witness Printer took 8.62ms. Allocated memory is still 161.5MB. Free memory was 107.6MB in the beginning and 107.2MB in the end (delta: 432.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:59:41,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 94.4MB. Free memory was 68.0MB in the beginning and 68.0MB in the end (delta: 32.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.11ms. Allocated memory is still 161.5MB. Free memory was 126.1MB in the beginning and 136.5MB in the end (delta: -10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.46ms. Allocated memory is still 161.5MB. Free memory was 136.5MB in the beginning and 134.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.00ms. Allocated memory is still 161.5MB. Free memory was 134.9MB in the beginning and 133.9MB in the end (delta: 992.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 416.67ms. Allocated memory is still 161.5MB. Free memory was 133.9MB in the beginning and 122.8MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 542.86ms. Allocated memory is still 161.5MB. Free memory was 122.3MB in the beginning and 107.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 8.62ms. Allocated memory is still 161.5MB. Free memory was 107.6MB in the beginning and 107.2MB in the end (delta: 432.5kB). 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: 51]: 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 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L42] CALL, EXPR f(IN) VAL [\old(x)=55] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L42] RET, EXPR f(IN) VAL [f(IN)=56, IN=55] [L42] CALL, EXPR fp(IN) VAL [\old(x)=55] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L42] RET, EXPR fp(IN) VAL [f(IN)=56, fp(IN)=59, IN=55] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=60] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L44] RET, EXPR f(x) VAL [f(x)=53, IN=55, x=60] [L44] CALL, EXPR fp(x) VAL [\old(x)=60] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L44] RET, EXPR fp(x) VAL [f(x)=53, fp(x)=61, IN=55, x=60] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=54] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L46] RET, EXPR f(x) VAL [f(x)=58, IN=55, x=54] [L46] CALL, EXPR fp(x) VAL [\old(x)=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L46] RET, EXPR fp(x) VAL [f(x)=58, fp(x)=57, IN=55, x=54] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=55] [L51] reach_error() VAL [IN=55] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 3, 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=19occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 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 [2022-11-03 03:59:42,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI --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 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 --- 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-5e519f3 [2022-11-03 03:59:44,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:59:44,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:59:44,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:59:44,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:59:44,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:59:44,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:59:44,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:59:44,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:59:44,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:59:44,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:59:44,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:59:44,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:59:44,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:59:44,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:59:44,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:59:44,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:59:44,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:59:44,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:59:44,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:59:44,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:59:44,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:59:44,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:59:44,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:59:44,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:59:44,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:59:44,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:59:44,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:59:44,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:59:44,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:59:44,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:59:44,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:59:44,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:59:44,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:59:44,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:59:44,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:59:44,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:59:44,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:59:44,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:59:44,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:59:44,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:59:44,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-03 03:59:44,789 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:59:44,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:59:44,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:59:44,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:59:44,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:59:44,792 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:59:44,792 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:59:44,792 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:59:44,793 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:59:44,793 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:59:44,794 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:59:44,794 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:59:44,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:59:44,796 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:59:44,797 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:59:44,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:59:44,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:59:44,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:59:44,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:59:44,798 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 03:59:44,798 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 03:59:44,798 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 03:59:44,798 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:59:44,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:59:44,799 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:59:44,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:59:44,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:59:44,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 03:59:44,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:59:44,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:59:44,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:59:44,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:59:44,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:59:44,801 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 03:59:44,801 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 03:59:44,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:59:44,802 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:59:44,802 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 03:59:44,803 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_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 [2022-11-03 03:59:45,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:59:45,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:59:45,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:59:45,326 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:59:45,327 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:59:45,329 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-11-03 03:59:45,398 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/data/f359d2774/ddb0b3e2440e4a6ebc3faeb39efe2402/FLAG25a092b54 [2022-11-03 03:59:46,046 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:59:46,049 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-11-03 03:59:46,058 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/data/f359d2774/ddb0b3e2440e4a6ebc3faeb39efe2402/FLAG25a092b54 [2022-11-03 03:59:46,378 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/data/f359d2774/ddb0b3e2440e4a6ebc3faeb39efe2402 [2022-11-03 03:59:46,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:59:46,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:59:46,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:59:46,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:59:46,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:59:46,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:46" (1/1) ... [2022-11-03 03:59:46,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4075b340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:46, skipping insertion in model container [2022-11-03 03:59:46,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:46" (1/1) ... [2022-11-03 03:59:46,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:59:46,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:59:46,607 WARN L230 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_44028c3a-ae75-44c8-b424-d1414b43ffed/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2022-11-03 03:59:46,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:59:46,648 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:59:46,677 WARN L230 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_44028c3a-ae75-44c8-b424-d1414b43ffed/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2022-11-03 03:59:46,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:59:46,694 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:59:46,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:46 WrapperNode [2022-11-03 03:59:46,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:59:46,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:59:46,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:59:46,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:59:46,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:46" (1/1) ... [2022-11-03 03:59:46,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:46" (1/1) ... [2022-11-03 03:59:46,730 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-03 03:59:46,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:59:46,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:59:46,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:59:46,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:59:46,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:46" (1/1) ... [2022-11-03 03:59:46,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:46" (1/1) ... [2022-11-03 03:59:46,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:46" (1/1) ... [2022-11-03 03:59:46,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:46" (1/1) ... [2022-11-03 03:59:46,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:46" (1/1) ... [2022-11-03 03:59:46,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:46" (1/1) ... [2022-11-03 03:59:46,758 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:46" (1/1) ... [2022-11-03 03:59:46,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:46" (1/1) ... [2022-11-03 03:59:46,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:59:46,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:59:46,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:59:46,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:59:46,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:46" (1/1) ... [2022-11-03 03:59:46,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:59:46,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:46,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:59:46,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:59:46,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:59:46,858 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-03 03:59:46,859 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-03 03:59:46,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 03:59:46,859 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-03 03:59:46,859 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-03 03:59:46,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:59:46,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:59:46,961 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:59:46,964 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:59:57,922 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:59:57,927 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:59:57,928 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:59:57,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:57 BoogieIcfgContainer [2022-11-03 03:59:57,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:59:57,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:59:57,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:59:57,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:59:57,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:59:46" (1/3) ... [2022-11-03 03:59:57,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e1da62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:59:57, skipping insertion in model container [2022-11-03 03:59:57,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:46" (2/3) ... [2022-11-03 03:59:57,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e1da62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:59:57, skipping insertion in model container [2022-11-03 03:59:57,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:57" (3/3) ... [2022-11-03 03:59:57,940 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_7.i [2022-11-03 03:59:57,961 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:59:57,962 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:59:58,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:59:58,035 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;@24cf2498, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:59:58,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:59:58,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 03:59:58,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 03:59:58,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:58,049 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:58,049 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:58,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:58,055 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-11-03 03:59:58,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:59:58,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011838586] [2022-11-03 03:59:58,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:58,069 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:59:58,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:59:58,075 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:59:58,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 04:00:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:01,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 04:00:01,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:00:01,684 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 04:00:01,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:00:01,685 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:00:01,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011838586] [2022-11-03 04:00:01,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011838586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:01,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:01,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:00:01,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759545744] [2022-11-03 04:00:01,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:01,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 04:00:01,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:00:01,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 04:00:01,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:00:01,729 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-03 04:00:01,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:01,749 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-11-03 04:00:01,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 04:00:01,752 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2022-11-03 04:00:01,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:01,758 INFO L225 Difference]: With dead ends: 49 [2022-11-03 04:00:01,758 INFO L226 Difference]: Without dead ends: 22 [2022-11-03 04:00:01,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:00:01,765 INFO L413 NwaCegarLoop]: 29 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, 29 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 [2022-11-03 04:00:01,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:00:01,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-03 04:00:01,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-03 04:00:01,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:00:01,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-11-03 04:00:01,800 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-11-03 04:00:01,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:01,800 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-03 04:00:01,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-03 04:00:01,801 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-11-03 04:00:01,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 04:00:01,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:01,803 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:00:01,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 04:00:02,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:00:02,023 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:02,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:02,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-11-03 04:00:02,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:00:02,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020021647] [2022-11-03 04:00:02,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:02,027 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:00:02,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:00:02,029 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:00:02,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 04:00:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:00:39,177 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 04:03:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:03:16,915 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-03 04:03:16,916 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 04:03:16,918 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 04:03:17,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:17,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:03:17,123 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 04:03:17,126 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 04:03:17,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:03:17 BoogieIcfgContainer [2022-11-03 04:03:17,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 04:03:17,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 04:03:17,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 04:03:17,177 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 04:03:17,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:57" (3/4) ... [2022-11-03 04:03:17,179 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-03 04:03:17,239 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 04:03:17,244 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 04:03:17,245 INFO L158 Benchmark]: Toolchain (without parser) took 210861.89ms. Allocated memory is still 73.4MB. Free memory was 50.4MB in the beginning and 52.3MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:03:17,245 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 54.5MB. Free memory was 33.9MB in the beginning and 33.8MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:03:17,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.90ms. Allocated memory is still 73.4MB. Free memory was 50.3MB in the beginning and 54.6MB in the end (delta: -4.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 04:03:17,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.63ms. Allocated memory is still 73.4MB. Free memory was 54.6MB in the beginning and 53.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 04:03:17,247 INFO L158 Benchmark]: Boogie Preprocessor took 30.87ms. Allocated memory is still 73.4MB. Free memory was 53.0MB in the beginning and 51.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:03:17,249 INFO L158 Benchmark]: RCFGBuilder took 11166.64ms. Allocated memory is still 73.4MB. Free memory was 51.7MB in the beginning and 41.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 04:03:17,249 INFO L158 Benchmark]: TraceAbstraction took 199243.27ms. Allocated memory is still 73.4MB. Free memory was 41.1MB in the beginning and 54.8MB in the end (delta: -13.7MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2022-11-03 04:03:17,250 INFO L158 Benchmark]: Witness Printer took 67.76ms. Allocated memory is still 73.4MB. Free memory was 54.8MB in the beginning and 52.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 04:03:17,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 54.5MB. Free memory was 33.9MB in the beginning and 33.8MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.90ms. Allocated memory is still 73.4MB. Free memory was 50.3MB in the beginning and 54.6MB in the end (delta: -4.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.63ms. Allocated memory is still 73.4MB. Free memory was 54.6MB in the beginning and 53.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.87ms. Allocated memory is still 73.4MB. Free memory was 53.0MB in the beginning and 51.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 11166.64ms. Allocated memory is still 73.4MB. Free memory was 51.7MB in the beginning and 41.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 199243.27ms. Allocated memory is still 73.4MB. Free memory was 41.1MB in the beginning and 54.8MB in the end (delta: -13.7MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * Witness Printer took 67.76ms. Allocated memory is still 73.4MB. Free memory was 54.8MB in the beginning and 52.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 51]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L42] CALL, EXPR f(IN) VAL [\old(x)=-1.1654444932937622] [L29] 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)=-1.1654444932937622, \result=-0.9201117753982544, x=-1.1654444932937622] [L42] RET, EXPR f(IN) VAL [f(IN)=-0.9201117753982544, IN=-1.1654444932937622] [L42] CALL, EXPR fp(IN) VAL [\old(x)=-1.1654444932937622] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.1654444932937622, \result=0.40121957659721375, x=-1.1654444932937622] [L42] RET, EXPR fp(IN) VAL [f(IN)=-0.9201117753982544, fp(IN)=0.40121957659721375, IN=-1.1654444932937622] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=1.1278427839279175] [L29] 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)=1.1278427839279175, \result=0.9044027924537659, x=1.1278427839279175] [L44] RET, EXPR f(x) VAL [f(x)=0.9044027924537659, IN=-1.1654444932937622, x=1.1278427839279175] [L44] CALL, EXPR fp(x) VAL [\old(x)=1.1278427839279175] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.1278427839279175, \result=0.43426305055618286, x=1.1278427839279175] [L44] RET, EXPR fp(x) VAL [f(x)=0.9044027924537659, fp(x)=0.43426305055618286, IN=-1.1654444932937622, x=1.1278427839279175] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=-0.9547723531723022] [L29] 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)=-0.9547723531723022, \result=-0.8164674639701843, x=-0.9547723531723022] [L46] RET, EXPR f(x) VAL [f(x)=-0.8164674639701843, IN=-1.1654444932937622, x=-0.9547723531723022] [L46] CALL, EXPR fp(x) VAL [\old(x)=-0.9547723531723022] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.9547723531723022, \result=0.5798819065093994, x=-0.9547723531723022] [L46] RET, EXPR fp(x) VAL [f(x)=-0.8164674639701843, fp(x)=0.5798819065093994, IN=-1.1654444932937622, x=-0.9547723531723022] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=-1.1654444932937622, x=0.45321691036224365] [L51] reach_error() VAL [IN=-1.1654444932937622, x=0.45321691036224365] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 199.1s, OverallIterations: 2, TraceHistogramMax: 3, 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, 29 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, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 40.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 64 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 18/18 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! [2022-11-03 04:03:17,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44028c3a-ae75-44c8-b424-d1414b43ffed/bin/utaipan-7li7fVZpFI/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