./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0 --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 86e7ac4fa6c1af11f4f8f15ec1d9635b8ca5555a095fe265c81ca6855d1c33c8 --- 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-e04fb08 [2022-11-16 20:37:58,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:37:58,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:37:58,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:37:58,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:37:58,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:37:58,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:37:58,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:37:58,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:37:58,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:37:58,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:37:58,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:37:58,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:37:58,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:37:58,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:37:58,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:37:58,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:37:58,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:37:58,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:37:58,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:37:58,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:37:58,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:37:58,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:37:58,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:37:58,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:37:58,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:37:58,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:37:58,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:37:58,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:37:58,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:37:58,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:37:58,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:37:58,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:37:58,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:37:58,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:37:58,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:37:58,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:37:58,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:37:58,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:37:58,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:37:58,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:37:58,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 20:37:58,468 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:37:58,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:37:58,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:37:58,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:37:58,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:37:58,471 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:37:58,472 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:37:58,472 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:37:58,472 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:37:58,472 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:37:58,474 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:37:58,474 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:37:58,474 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:37:58,475 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:37:58,475 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:37:58,475 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:37:58,475 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:37:58,476 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:37:58,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:37:58,477 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 20:37:58,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:37:58,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 20:37:58,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:37:58,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:37:58,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:37:58,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:37:58,479 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 20:37:58,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:37:58,479 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:37:58,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:37:58,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:37:58,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:37:58,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:37:58,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:37:58,481 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:37:58,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:37:58,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:37:58,482 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:37:58,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:37:58,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:37:58,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:37:58,483 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_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7ac4fa6c1af11f4f8f15ec1d9635b8ca5555a095fe265c81ca6855d1c33c8 [2022-11-16 20:37:58,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:37:58,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:37:58,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:37:58,827 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:37:58,828 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:37:58,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2022-11-16 20:37:58,903 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/data/b133a55bb/b4ac6cbe51d745e49c06cf314f370530/FLAG76a67d14f [2022-11-16 20:37:59,317 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:37:59,318 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2022-11-16 20:37:59,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/data/b133a55bb/b4ac6cbe51d745e49c06cf314f370530/FLAG76a67d14f [2022-11-16 20:37:59,723 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/data/b133a55bb/b4ac6cbe51d745e49c06cf314f370530 [2022-11-16 20:37:59,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:37:59,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:37:59,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:37:59,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:37:59,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:37:59,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:37:59" (1/1) ... [2022-11-16 20:37:59,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb97f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:59, skipping insertion in model container [2022-11-16 20:37:59,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:37:59" (1/1) ... [2022-11-16 20:37:59,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:37:59,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:37:59,968 WARN L229 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_b99c2130-411e-4d96-ae6e-f435567e672e/sv-benchmarks/c/floats-cdfpl/newton_1_7.i[1722,1735] [2022-11-16 20:37:59,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:37:59,978 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:37:59,992 WARN L229 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_b99c2130-411e-4d96-ae6e-f435567e672e/sv-benchmarks/c/floats-cdfpl/newton_1_7.i[1722,1735] [2022-11-16 20:37:59,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:38:00,005 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:38:00,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:00 WrapperNode [2022-11-16 20:38:00,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:38:00,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:38:00,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:38:00,007 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:38:00,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:00" (1/1) ... [2022-11-16 20:38:00,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:00" (1/1) ... [2022-11-16 20:38:00,039 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2022-11-16 20:38:00,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:38:00,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:38:00,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:38:00,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:38:00,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:00" (1/1) ... [2022-11-16 20:38:00,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:00" (1/1) ... [2022-11-16 20:38:00,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:00" (1/1) ... [2022-11-16 20:38:00,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:00" (1/1) ... [2022-11-16 20:38:00,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:00" (1/1) ... [2022-11-16 20:38:00,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:00" (1/1) ... [2022-11-16 20:38:00,076 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:00" (1/1) ... [2022-11-16 20:38:00,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:00" (1/1) ... [2022-11-16 20:38:00,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:38:00,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:38:00,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:38:00,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:38:00,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:00" (1/1) ... [2022-11-16 20:38:00,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:38:00,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:38:00,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:38:00,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:38:00,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:38:00,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:38:00,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:38:00,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:38:00,246 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:38:00,248 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:38:00,401 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:38:00,459 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:38:00,469 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 20:38:00,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:38:00 BoogieIcfgContainer [2022-11-16 20:38:00,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:38:00,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:38:00,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:38:00,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:38:00,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:37:59" (1/3) ... [2022-11-16 20:38:00,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce269dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:38:00, skipping insertion in model container [2022-11-16 20:38:00,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:00" (2/3) ... [2022-11-16 20:38:00,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce269dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:38:00, skipping insertion in model container [2022-11-16 20:38:00,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:38:00" (3/3) ... [2022-11-16 20:38:00,484 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_7.i [2022-11-16 20:38:00,507 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:38:00,507 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 20:38:00,585 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:38:00,594 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;@67e6b72b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:38:00,594 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 20:38:00,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:38:00,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 20:38:00,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:38:00,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 20:38:00,611 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:38:00,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:38:00,618 INFO L85 PathProgramCache]: Analyzing trace with hash 62017, now seen corresponding path program 1 times [2022-11-16 20:38:00,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:38:00,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529428717] [2022-11-16 20:38:00,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:38:00,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:38:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 20:38:00,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 20:38:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 20:38:00,789 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-16 20:38:00,791 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 20:38:00,792 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 20:38:00,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:38:00,799 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-16 20:38:00,804 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 20:38:00,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:38:00 BoogieIcfgContainer [2022-11-16 20:38:00,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 20:38:00,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 20:38:00,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 20:38:00,831 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 20:38:00,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:38:00" (3/4) ... [2022-11-16 20:38:00,835 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 20:38:00,835 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 20:38:00,837 INFO L158 Benchmark]: Toolchain (without parser) took 1109.88ms. Allocated memory is still 113.2MB. Free memory was 78.6MB in the beginning and 63.2MB in the end (delta: 15.4MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-11-16 20:38:00,838 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory was 94.8MB in the beginning and 94.8MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:38:00,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.45ms. Allocated memory is still 113.2MB. Free memory was 78.5MB in the beginning and 91.0MB in the end (delta: -12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 20:38:00,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.46ms. Allocated memory is still 113.2MB. Free memory was 91.0MB in the beginning and 89.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:38:00,841 INFO L158 Benchmark]: Boogie Preprocessor took 46.65ms. Allocated memory is still 113.2MB. Free memory was 89.5MB in the beginning and 88.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:38:00,846 INFO L158 Benchmark]: RCFGBuilder took 384.12ms. Allocated memory is still 113.2MB. Free memory was 88.4MB in the beginning and 77.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 20:38:00,847 INFO L158 Benchmark]: TraceAbstraction took 355.05ms. Allocated memory is still 113.2MB. Free memory was 76.9MB in the beginning and 63.7MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 20:38:00,848 INFO L158 Benchmark]: Witness Printer took 5.13ms. Allocated memory is still 113.2MB. Free memory was 63.7MB in the beginning and 63.2MB in the end (delta: 504.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:38:00,857 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory was 94.8MB in the beginning and 94.8MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.45ms. Allocated memory is still 113.2MB. Free memory was 78.5MB in the beginning and 91.0MB in the end (delta: -12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.46ms. Allocated memory is still 113.2MB. Free memory was 91.0MB in the beginning and 89.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.65ms. Allocated memory is still 113.2MB. Free memory was 89.5MB in the beginning and 88.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 384.12ms. Allocated memory is still 113.2MB. Free memory was 88.4MB in the beginning and 77.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 355.05ms. Allocated memory is still 113.2MB. Free memory was 76.9MB in the beginning and 63.7MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.13ms. Allocated memory is still 113.2MB. Free memory was 63.7MB in the beginning and 63.2MB in the end (delta: 504.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 29. 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) [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) [L42] CALL, EXPR fp(IN) [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) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=53] [L51] reach_error() VAL [IN=53] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=6occurred 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, 3 NumberOfCodeBlocks, 3 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 [2022-11-16 20:38:00,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/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_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0 --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 86e7ac4fa6c1af11f4f8f15ec1d9635b8ca5555a095fe265c81ca6855d1c33c8 --- 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-e04fb08 [2022-11-16 20:38:03,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:38:03,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:38:03,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:38:03,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:38:03,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:38:03,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:38:03,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:38:03,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:38:03,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:38:03,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:38:03,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:38:03,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:38:03,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:38:03,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:38:03,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:38:03,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:38:03,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:38:03,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:38:03,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:38:03,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:38:03,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:38:03,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:38:03,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:38:03,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:38:03,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:38:03,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:38:03,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:38:03,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:38:03,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:38:03,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:38:03,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:38:03,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:38:03,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:38:03,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:38:03,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:38:03,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:38:03,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:38:03,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:38:03,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:38:03,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:38:03,301 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-16 20:38:03,340 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:38:03,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:38:03,342 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:38:03,342 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:38:03,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:38:03,345 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:38:03,345 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:38:03,345 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:38:03,346 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:38:03,346 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:38:03,347 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:38:03,354 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:38:03,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:38:03,356 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 20:38:03,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 20:38:03,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:38:03,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:38:03,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:38:03,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:38:03,357 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 20:38:03,357 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 20:38:03,357 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 20:38:03,357 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 20:38:03,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:38:03,358 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:38:03,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:38:03,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:38:03,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 20:38:03,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:38:03,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:38:03,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:38:03,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:38:03,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:38:03,360 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-16 20:38:03,360 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 20:38:03,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:38:03,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:38:03,361 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 20:38:03,361 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_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7ac4fa6c1af11f4f8f15ec1d9635b8ca5555a095fe265c81ca6855d1c33c8 [2022-11-16 20:38:03,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:38:03,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:38:03,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:38:03,812 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:38:03,812 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:38:03,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2022-11-16 20:38:03,880 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/data/ca3053e5b/fd89c4002c99461b95aff219b53540dc/FLAG2e9605ff5 [2022-11-16 20:38:04,374 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:38:04,374 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2022-11-16 20:38:04,382 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/data/ca3053e5b/fd89c4002c99461b95aff219b53540dc/FLAG2e9605ff5 [2022-11-16 20:38:04,754 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/data/ca3053e5b/fd89c4002c99461b95aff219b53540dc [2022-11-16 20:38:04,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:38:04,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:38:04,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:38:04,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:38:04,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:38:04,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:38:04" (1/1) ... [2022-11-16 20:38:04,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5afe67b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:04, skipping insertion in model container [2022-11-16 20:38:04,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:38:04" (1/1) ... [2022-11-16 20:38:04,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:38:04,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:38:04,993 WARN L229 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_b99c2130-411e-4d96-ae6e-f435567e672e/sv-benchmarks/c/floats-cdfpl/newton_1_7.i[1722,1735] [2022-11-16 20:38:04,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:38:05,027 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:38:05,065 WARN L229 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_b99c2130-411e-4d96-ae6e-f435567e672e/sv-benchmarks/c/floats-cdfpl/newton_1_7.i[1722,1735] [2022-11-16 20:38:05,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:38:05,103 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:38:05,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:05 WrapperNode [2022-11-16 20:38:05,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:38:05,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:38:05,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:38:05,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:38:05,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:05" (1/1) ... [2022-11-16 20:38:05,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:05" (1/1) ... [2022-11-16 20:38:05,156 INFO L138 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2022-11-16 20:38:05,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:38:05,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:38:05,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:38:05,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:38:05,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:05" (1/1) ... [2022-11-16 20:38:05,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:05" (1/1) ... [2022-11-16 20:38:05,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:05" (1/1) ... [2022-11-16 20:38:05,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:05" (1/1) ... [2022-11-16 20:38:05,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:05" (1/1) ... [2022-11-16 20:38:05,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:05" (1/1) ... [2022-11-16 20:38:05,204 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:05" (1/1) ... [2022-11-16 20:38:05,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:05" (1/1) ... [2022-11-16 20:38:05,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:38:05,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:38:05,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:38:05,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:38:05,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:05" (1/1) ... [2022-11-16 20:38:05,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:38:05,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:38:05,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:38:05,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:38:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:38:05,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 20:38:05,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:38:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:38:05,369 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:38:05,370 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:38:11,771 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:38:11,776 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:38:11,776 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 20:38:11,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:38:11 BoogieIcfgContainer [2022-11-16 20:38:11,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:38:11,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:38:11,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:38:11,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:38:11,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:38:04" (1/3) ... [2022-11-16 20:38:11,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26479dcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:38:11, skipping insertion in model container [2022-11-16 20:38:11,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:05" (2/3) ... [2022-11-16 20:38:11,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26479dcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:38:11, skipping insertion in model container [2022-11-16 20:38:11,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:38:11" (3/3) ... [2022-11-16 20:38:11,787 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_7.i [2022-11-16 20:38:11,805 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:38:11,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 20:38:11,851 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:38:11,858 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;@2a2042ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:38:11,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 20:38:11,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:38:11,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 20:38:11,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:38:11,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:38:11,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:38:11,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:38:11,878 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-11-16 20:38:11,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 20:38:11,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127280470] [2022-11-16 20:38:11,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:38:11,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 20:38:11,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 20:38:11,909 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 20:38:11,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 20:38:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:38:13,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 20:38:13,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:38:13,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:38:13,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 20:38:13,174 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 20:38:13,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127280470] [2022-11-16 20:38:13,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127280470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:38:13,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:38:13,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:38:13,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839183031] [2022-11-16 20:38:13,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:38:13,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 20:38:13,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 20:38:13,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 20:38:13,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 20:38:13,212 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:38:13,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:38:13,226 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-11-16 20:38:13,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 20:38:13,229 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-11-16 20:38:13,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:38:13,236 INFO L225 Difference]: With dead ends: 23 [2022-11-16 20:38:13,237 INFO L226 Difference]: Without dead ends: 9 [2022-11-16 20:38:13,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 20:38:13,244 INFO L413 NwaCegarLoop]: 12 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, 12 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 [2022-11-16 20:38:13,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:38:13,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-16 20:38:13,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-16 20:38:13,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:38:13,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-11-16 20:38:13,274 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-11-16 20:38:13,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:38:13,274 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-11-16 20:38:13,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:38:13,275 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-11-16 20:38:13,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 20:38:13,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:38:13,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:38:13,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/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)] Ended with exit code 0 [2022-11-16 20:38:13,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 20:38:13,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:38:13,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:38:13,486 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-11-16 20:38:13,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 20:38:13,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545229891] [2022-11-16 20:38:13,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:38:13,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 20:38:13,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 20:38:13,489 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 20:38:13,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 20:38:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 20:38:20,917 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 20:38:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 20:38:25,405 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-16 20:38:25,406 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 20:38:25,407 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 20:38:25,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/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 [2022-11-16 20:38:25,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 20:38:25,613 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 20:38:25,616 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 20:38:25,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:38:25 BoogieIcfgContainer [2022-11-16 20:38:25,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 20:38:25,645 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 20:38:25,645 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 20:38:25,645 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 20:38:25,646 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:38:11" (3/4) ... [2022-11-16 20:38:25,648 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-16 20:38:25,680 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 20:38:25,680 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 20:38:25,681 INFO L158 Benchmark]: Toolchain (without parser) took 20921.91ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 45.0MB in the beginning and 41.8MB in the end (delta: 3.2MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-11-16 20:38:25,681 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 62.9MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:38:25,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.44ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 46.1MB in the end (delta: -1.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 20:38:25,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.20ms. Allocated memory is still 62.9MB. Free memory was 46.1MB in the beginning and 44.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:38:25,683 INFO L158 Benchmark]: Boogie Preprocessor took 51.84ms. Allocated memory is still 62.9MB. Free memory was 44.4MB in the beginning and 43.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:38:25,684 INFO L158 Benchmark]: RCFGBuilder took 6568.19ms. Allocated memory is still 62.9MB. Free memory was 42.9MB in the beginning and 33.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 20:38:25,685 INFO L158 Benchmark]: TraceAbstraction took 13864.33ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 32.9MB in the beginning and 43.9MB in the end (delta: -11.0MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-11-16 20:38:25,685 INFO L158 Benchmark]: Witness Printer took 34.80ms. Allocated memory is still 77.6MB. Free memory was 43.5MB in the beginning and 41.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:38:25,689 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 62.9MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.44ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 46.1MB in the end (delta: -1.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.20ms. Allocated memory is still 62.9MB. Free memory was 46.1MB in the beginning and 44.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.84ms. Allocated memory is still 62.9MB. Free memory was 44.4MB in the beginning and 43.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6568.19ms. Allocated memory is still 62.9MB. Free memory was 42.9MB in the beginning and 33.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 13864.33ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 32.9MB in the beginning and 43.9MB in the end (delta: -11.0MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Witness Printer took 34.80ms. Allocated memory is still 77.6MB. Free memory was 43.5MB in the beginning and 41.8MB in the end (delta: 1.7MB). 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) [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)=-1.2030818462371826, \result=-0.9345846772193909, x=-1.2030818462371826] [L42] RET, EXPR f(IN) [L42] CALL, EXPR fp(IN) [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.2030818462371826, \result=0.3677995502948761, x=-1.2030818462371826] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=-1.2030818462371826, x=1.3379344940185547] [L51] reach_error() VAL [IN=-1.2030818462371826, x=1.3379344940185547] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 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, 12 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 8.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 26 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! [2022-11-16 20:38:25,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99c2130-411e-4d96-ae6e-f435567e672e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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