./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e48881fddee372e5aad046f2f519f188ef8a27fb46b046a6e106c678419a225 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:33:59,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:33:59,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:33:59,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:33:59,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:33:59,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:33:59,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:33:59,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:33:59,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:33:59,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:33:59,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:33:59,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:33:59,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:33:59,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:33:59,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:33:59,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:33:59,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:33:59,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:33:59,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:33:59,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:33:59,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:33:59,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:33:59,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:33:59,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:33:59,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:33:59,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:33:59,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:33:59,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:33:59,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:33:59,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:33:59,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:33:59,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:33:59,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:33:59,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:33:59,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:33:59,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:33:59,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:33:59,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:33:59,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:33:59,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:33:59,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:33:59,574 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:33:59,598 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:33:59,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:33:59,599 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:33:59,599 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:33:59,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:33:59,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:33:59,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:33:59,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:33:59,601 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:33:59,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:33:59,602 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:33:59,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:33:59,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:33:59,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:33:59,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:33:59,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:33:59,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:33:59,603 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:33:59,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:33:59,604 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:33:59,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:33:59,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:33:59,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:33:59,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:33:59,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:33:59,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:33:59,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:33:59,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:33:59,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:33:59,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:33:59,606 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:33:59,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:33:59,607 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:33:59,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:33:59,607 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e48881fddee372e5aad046f2f519f188ef8a27fb46b046a6e106c678419a225 [2022-11-25 17:33:59,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:34:00,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:34:00,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:34:00,023 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:34:00,024 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:34:00,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i [2022-11-25 17:34:03,604 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:34:03,933 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:34:03,935 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/sv-benchmarks/c/floats-cdfpl/newton_2_6.i [2022-11-25 17:34:03,944 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/data/bac9798b7/15d58c46fc074e0482d613756822e8a9/FLAGfbb40cac9 [2022-11-25 17:34:03,963 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/data/bac9798b7/15d58c46fc074e0482d613756822e8a9 [2022-11-25 17:34:03,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:34:03,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:34:03,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:34:03,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:34:03,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:34:03,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:34:03" (1/1) ... [2022-11-25 17:34:03,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@384de09b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:03, skipping insertion in model container [2022-11-25 17:34:03,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:34:03" (1/1) ... [2022-11-25 17:34:03,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:34:04,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:34:04,279 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/sv-benchmarks/c/floats-cdfpl/newton_2_6.i[1743,1756] [2022-11-25 17:34:04,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:34:04,301 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:34:04,340 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/sv-benchmarks/c/floats-cdfpl/newton_2_6.i[1743,1756] [2022-11-25 17:34:04,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:34:04,364 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:34:04,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:04 WrapperNode [2022-11-25 17:34:04,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:34:04,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:34:04,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:34:04,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:34:04,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:04" (1/1) ... [2022-11-25 17:34:04,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:04" (1/1) ... [2022-11-25 17:34:04,407 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29 [2022-11-25 17:34:04,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:34:04,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:34:04,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:34:04,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:34:04,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:04" (1/1) ... [2022-11-25 17:34:04,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:04" (1/1) ... [2022-11-25 17:34:04,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:04" (1/1) ... [2022-11-25 17:34:04,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:04" (1/1) ... [2022-11-25 17:34:04,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:04" (1/1) ... [2022-11-25 17:34:04,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:04" (1/1) ... [2022-11-25 17:34:04,433 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:04" (1/1) ... [2022-11-25 17:34:04,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:04" (1/1) ... [2022-11-25 17:34:04,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:34:04,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:34:04,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:34:04,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:34:04,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:04" (1/1) ... [2022-11-25 17:34:04,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:34:04,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:34:04,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:34:04,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:34:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:34:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-25 17:34:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-25 17:34:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-25 17:34:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-25 17:34:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:34:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:34:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:34:04,648 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:34:04,650 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:34:04,807 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:34:04,815 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:34:04,815 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:34:04,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:34:04 BoogieIcfgContainer [2022-11-25 17:34:04,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:34:04,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:34:04,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:34:04,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:34:04,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:34:03" (1/3) ... [2022-11-25 17:34:04,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764d019a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:34:04, skipping insertion in model container [2022-11-25 17:34:04,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:04" (2/3) ... [2022-11-25 17:34:04,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764d019a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:34:04, skipping insertion in model container [2022-11-25 17:34:04,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:34:04" (3/3) ... [2022-11-25 17:34:04,830 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_6.i [2022-11-25 17:34:04,856 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:34:04,856 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:34:04,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:34:04,929 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=PETRI_NET, 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;@877055a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:34:04,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:34:04,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:34:04,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 17:34:04,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:34:04,948 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:34:04,949 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:34:04,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:34:04,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2022-11-25 17:34:04,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:34:04,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174815291] [2022-11-25 17:34:04,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:04,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:34:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:34:05,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:34:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:34:05,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:34:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:34:05,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:34:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:34:05,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:34:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:34:05,306 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 17:34:05,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:34:05,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174815291] [2022-11-25 17:34:05,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174815291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:34:05,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:34:05,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:34:05,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161923872] [2022-11-25 17:34:05,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:34:05,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:34:05,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:34:05,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:34:05,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:34:05,377 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:34:05,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:34:05,412 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-11-25 17:34:05,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:34:05,416 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2022-11-25 17:34:05,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:34:05,428 INFO L225 Difference]: With dead ends: 43 [2022-11-25 17:34:05,432 INFO L226 Difference]: Without dead ends: 19 [2022-11-25 17:34:05,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:34:05,447 INFO L413 NwaCegarLoop]: 24 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, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:34:05,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:34:05,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-25 17:34:05,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-25 17:34:05,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:34:05,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-25 17:34:05,511 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2022-11-25 17:34:05,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:34:05,513 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-25 17:34:05,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:34:05,515 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-25 17:34:05,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 17:34:05,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:34:05,519 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:34:05,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:34:05,521 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:34:05,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:34:05,523 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2022-11-25 17:34:05,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:34:05,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093949969] [2022-11-25 17:34:05,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:05,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:34:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:34:05,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:34:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:34:05,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:34:05,617 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:34:05,619 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:34:05,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:34:05,637 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:34:05,642 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:34:05,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:34:05 BoogieIcfgContainer [2022-11-25 17:34:05,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:34:05,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:34:05,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:34:05,679 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:34:05,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:34:04" (3/4) ... [2022-11-25 17:34:05,684 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:34:05,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:34:05,685 INFO L158 Benchmark]: Toolchain (without parser) took 1717.07ms. Allocated memory is still 155.2MB. Free memory was 124.7MB in the beginning and 73.6MB in the end (delta: 51.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-11-25 17:34:05,686 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:34:05,687 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.08ms. Allocated memory is still 155.2MB. Free memory was 124.4MB in the beginning and 113.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:34:05,687 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.88ms. Allocated memory is still 155.2MB. Free memory was 113.9MB in the beginning and 112.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:34:05,688 INFO L158 Benchmark]: Boogie Preprocessor took 28.21ms. Allocated memory is still 155.2MB. Free memory was 112.5MB in the beginning and 111.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:34:05,689 INFO L158 Benchmark]: RCFGBuilder took 380.72ms. Allocated memory is still 155.2MB. Free memory was 111.4MB in the beginning and 102.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 17:34:05,690 INFO L158 Benchmark]: TraceAbstraction took 855.89ms. Allocated memory is still 155.2MB. Free memory was 101.3MB in the beginning and 73.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 17:34:05,690 INFO L158 Benchmark]: Witness Printer took 6.34ms. Allocated memory is still 155.2MB. Free memory was 73.9MB in the beginning and 73.6MB in the end (delta: 327.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:34:05,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.08ms. Allocated memory is still 155.2MB. Free memory was 124.4MB in the beginning and 113.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.88ms. Allocated memory is still 155.2MB. Free memory was 113.9MB in the beginning and 112.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.21ms. Allocated memory is still 155.2MB. Free memory was 112.5MB in the beginning and 111.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 380.72ms. Allocated memory is still 155.2MB. Free memory was 111.4MB in the beginning and 102.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 855.89ms. Allocated memory is still 155.2MB. Free memory was 101.3MB in the beginning and 73.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 6.34ms. Allocated memory is still 155.2MB. Free memory was 73.9MB in the beginning and 73.6MB in the end (delta: 327.7kB). 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 44. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L42] CALL, EXPR f(IN) VAL [\old(x)=53] [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)=53, x=53] [L42] RET, EXPR f(IN) VAL [f(IN)=54, IN=53] [L42] CALL, EXPR fp(IN) VAL [\old(x)=53] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=53, x=53] [L42] RET, EXPR fp(IN) VAL [f(IN)=54, fp(IN)=57, IN=53] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) 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; VAL [\old(x)=55, x=55] [L44] RET, EXPR f(x) VAL [f(x)=56, IN=53, x=55] [L44] CALL, EXPR fp(x) 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; VAL [\old(x)=55, x=55] [L44] RET, EXPR fp(x) VAL [f(x)=56, fp(x)=58, IN=53, x=55] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=53] [L51] reach_error() VAL [IN=53] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 2, 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, 24 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, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 17:34:05,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e48881fddee372e5aad046f2f519f188ef8a27fb46b046a6e106c678419a225 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:34:08,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:34:08,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:34:08,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:34:08,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:34:08,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:34:08,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:34:08,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:34:08,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:34:08,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:34:08,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:34:08,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:34:08,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:34:08,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:34:08,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:34:08,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:34:08,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:34:08,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:34:08,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:34:08,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:34:08,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:34:08,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:34:08,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:34:08,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:34:08,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:34:08,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:34:08,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:34:08,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:34:08,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:34:08,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:34:08,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:34:08,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:34:08,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:34:08,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:34:08,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:34:08,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:34:08,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:34:08,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:34:08,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:34:08,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:34:08,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:34:08,885 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-25 17:34:08,934 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:34:08,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:34:08,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:34:08,937 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:34:08,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:34:08,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:34:08,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:34:08,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:34:08,940 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:34:08,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:34:08,942 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:34:08,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:34:08,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:34:08,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:34:08,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:34:08,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:34:08,944 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:34:08,945 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:34:08,945 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:34:08,945 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:34:08,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:34:08,946 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:34:08,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:34:08,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:34:08,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:34:08,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:34:08,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:34:08,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:34:08,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:34:08,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:34:08,949 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:34:08,950 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:34:08,950 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:34:08,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:34:08,951 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:34:08,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:34:08,952 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:34:08,952 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e48881fddee372e5aad046f2f519f188ef8a27fb46b046a6e106c678419a225 [2022-11-25 17:34:09,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:34:09,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:34:09,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:34:09,517 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:34:09,517 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:34:09,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i [2022-11-25 17:34:12,954 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:34:13,226 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:34:13,227 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/sv-benchmarks/c/floats-cdfpl/newton_2_6.i [2022-11-25 17:34:13,236 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/data/f32d0a803/65124f30afbb4e77a448fa086a41b72f/FLAGe5fc56321 [2022-11-25 17:34:13,262 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/data/f32d0a803/65124f30afbb4e77a448fa086a41b72f [2022-11-25 17:34:13,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:34:13,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:34:13,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:34:13,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:34:13,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:34:13,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:34:13" (1/1) ... [2022-11-25 17:34:13,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3221dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:13, skipping insertion in model container [2022-11-25 17:34:13,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:34:13" (1/1) ... [2022-11-25 17:34:13,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:34:13,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:34:13,596 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/sv-benchmarks/c/floats-cdfpl/newton_2_6.i[1743,1756] [2022-11-25 17:34:13,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:34:13,631 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:34:13,666 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/sv-benchmarks/c/floats-cdfpl/newton_2_6.i[1743,1756] [2022-11-25 17:34:13,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:34:13,686 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:34:13,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:13 WrapperNode [2022-11-25 17:34:13,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:34:13,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:34:13,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:34:13,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:34:13,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:13" (1/1) ... [2022-11-25 17:34:13,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:13" (1/1) ... [2022-11-25 17:34:13,749 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2022-11-25 17:34:13,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:34:13,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:34:13,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:34:13,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:34:13,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:13" (1/1) ... [2022-11-25 17:34:13,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:13" (1/1) ... [2022-11-25 17:34:13,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:13" (1/1) ... [2022-11-25 17:34:13,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:13" (1/1) ... [2022-11-25 17:34:13,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:13" (1/1) ... [2022-11-25 17:34:13,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:13" (1/1) ... [2022-11-25 17:34:13,811 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:13" (1/1) ... [2022-11-25 17:34:13,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:13" (1/1) ... [2022-11-25 17:34:13,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:34:13,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:34:13,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:34:13,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:34:13,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:13" (1/1) ... [2022-11-25 17:34:13,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:34:13,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:34:13,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:34:13,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:34:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:34:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-25 17:34:13,934 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-25 17:34:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 17:34:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-25 17:34:13,936 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-25 17:34:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:34:13,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:34:14,057 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:34:14,060 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:34:22,661 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:34:22,670 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:34:22,670 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:34:22,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:34:22 BoogieIcfgContainer [2022-11-25 17:34:22,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:34:22,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:34:22,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:34:22,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:34:22,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:34:13" (1/3) ... [2022-11-25 17:34:22,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23675859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:34:22, skipping insertion in model container [2022-11-25 17:34:22,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:13" (2/3) ... [2022-11-25 17:34:22,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23675859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:34:22, skipping insertion in model container [2022-11-25 17:34:22,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:34:22" (3/3) ... [2022-11-25 17:34:22,686 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_6.i [2022-11-25 17:34:22,712 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:34:22,713 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:34:22,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:34:22,785 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=PETRI_NET, 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;@641ca250, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:34:22,785 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:34:22,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:34:22,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 17:34:22,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:34:22,802 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:34:22,803 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:34:22,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:34:22,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2022-11-25 17:34:22,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:34:22,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012464390] [2022-11-25 17:34:22,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:22,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:34:22,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:34:22,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:34:22,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 17:34:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:34:25,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 17:34:25,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:34:25,716 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 17:34:25,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:34:25,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:34:25,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012464390] [2022-11-25 17:34:25,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012464390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:34:25,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:34:25,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:34:25,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194289183] [2022-11-25 17:34:25,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:34:25,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:34:25,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:34:25,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:34:25,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:34:25,779 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:34:25,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:34:25,800 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-11-25 17:34:25,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:34:25,807 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2022-11-25 17:34:25,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:34:25,816 INFO L225 Difference]: With dead ends: 43 [2022-11-25 17:34:25,817 INFO L226 Difference]: Without dead ends: 19 [2022-11-25 17:34:25,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:34:25,831 INFO L413 NwaCegarLoop]: 24 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, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:34:25,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:34:25,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-25 17:34:25,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-25 17:34:25,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:34:25,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-25 17:34:25,880 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2022-11-25 17:34:25,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:34:25,881 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-25 17:34:25,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:34:25,882 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-25 17:34:25,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 17:34:25,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:34:25,884 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:34:25,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:34:26,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:34:26,095 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:34:26,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:34:26,097 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2022-11-25 17:34:26,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:34:26,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940312752] [2022-11-25 17:34:26,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:26,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:34:26,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:34:26,115 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:34:26,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 17:36:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:36:17,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:36:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:36:44,141 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 17:36:44,141 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:36:44,143 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:36:44,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:36:44,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:36:44,348 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:36:44,351 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:36:44,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:36:44 BoogieIcfgContainer [2022-11-25 17:36:44,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:36:44,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:36:44,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:36:44,403 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:36:44,404 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:34:22" (3/4) ... [2022-11-25 17:36:44,406 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 17:36:44,490 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:36:44,496 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:36:44,497 INFO L158 Benchmark]: Toolchain (without parser) took 151230.19ms. Allocated memory was 67.1MB in the beginning and 92.3MB in the end (delta: 25.2MB). Free memory was 35.5MB in the beginning and 64.6MB in the end (delta: -29.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:36:44,498 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 67.1MB. Free memory is still 44.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:36:44,500 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.96ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 40.1MB in the end (delta: -4.9MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-11-25 17:36:44,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.66ms. Allocated memory is still 67.1MB. Free memory was 40.1MB in the beginning and 38.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:36:44,501 INFO L158 Benchmark]: Boogie Preprocessor took 67.83ms. Allocated memory is still 67.1MB. Free memory was 38.6MB in the beginning and 37.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:36:44,503 INFO L158 Benchmark]: RCFGBuilder took 8852.95ms. Allocated memory was 67.1MB in the beginning and 92.3MB in the end (delta: 25.2MB). Free memory was 37.2MB in the beginning and 67.6MB in the end (delta: -30.4MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-11-25 17:36:44,504 INFO L158 Benchmark]: TraceAbstraction took 141722.52ms. Allocated memory is still 92.3MB. Free memory was 66.8MB in the beginning and 67.0MB in the end (delta: -228.5kB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2022-11-25 17:36:44,507 INFO L158 Benchmark]: Witness Printer took 95.72ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 64.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:36:44,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 67.1MB. Free memory is still 44.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.96ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 40.1MB in the end (delta: -4.9MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.66ms. Allocated memory is still 67.1MB. Free memory was 40.1MB in the beginning and 38.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 67.83ms. Allocated memory is still 67.1MB. Free memory was 38.6MB in the beginning and 37.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 8852.95ms. Allocated memory was 67.1MB in the beginning and 92.3MB in the end (delta: 25.2MB). Free memory was 37.2MB in the beginning and 67.6MB in the end (delta: -30.4MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * TraceAbstraction took 141722.52ms. Allocated memory is still 92.3MB. Free memory was 66.8MB in the beginning and 67.0MB in the end (delta: -228.5kB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Witness Printer took 95.72ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 64.6MB in the end (delta: 2.4MB). 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 > -1.2f && IN < 1.2f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L42] CALL, EXPR f(IN) VAL [\old(x)=1.0927083492279053] [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)=1.0927083492279053, \result=0.8886082768440247, x=1.0927083492279053] [L42] RET, EXPR f(IN) VAL [f(IN)=0.8886082768440247, IN=1.0927083492279053] [L42] CALL, EXPR fp(IN) VAL [\old(x)=1.0927083492279053] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.0927083492279053, \result=0.4647611081600189, x=1.0927083492279053] [L42] RET, EXPR fp(IN) VAL [f(IN)=0.8886082768440247, fp(IN)=0.4647611081600189, IN=1.0927083492279053] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=-0.8192594051361084] [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)=-0.8192594051361084, \result=-0.7307382822036743, x=-0.8192594051361084] [L44] RET, EXPR f(x) VAL [f(x)=-0.7307382822036743, IN=1.0927083492279053, x=-0.8192594051361084] [L44] CALL, EXPR fp(x) VAL [\old(x)=-0.8192594051361084] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.8192594051361084, \result=0.6835974454879761, x=-0.8192594051361084] [L44] RET, EXPR fp(x) VAL [f(x)=-0.7307382822036743, fp(x)=0.6835974454879761, IN=1.0927083492279053, x=-0.8192594051361084] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=1.0927083492279053, x=0.24970054626464844] [L51] reach_error() VAL [IN=1.0927083492279053, x=0.24970054626464844] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 141.6s, OverallIterations: 2, TraceHistogramMax: 2, 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, 24 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, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 114.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 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! [2022-11-25 17:36:44,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a4576c2-3134-43c9-afc5-50f76a1e29ab/bin/uautomizer-ZsLfNo2U6R/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