./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/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_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/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_476cf1ea-c909-48ba-af2a-41a4579d1a86/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 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:35:00,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:35:00,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:35:00,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:35:00,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:35:00,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:35:00,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:35:00,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:35:00,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:35:00,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:35:00,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:35:00,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:35:00,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:35:00,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:35:00,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:35:00,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:35:00,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:35:00,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:35:00,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:35:00,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:35:00,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:35:00,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:35:00,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:35:00,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:35:00,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:35:00,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:35:00,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:35:00,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:35:00,390 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:35:00,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:35:00,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:35:00,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:35:00,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:35:00,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:35:00,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:35:00,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:35:00,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:35:00,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:35:00,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:35:00,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:35:00,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:35:00,403 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:35:00,424 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:35:00,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:35:00,425 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:35:00,425 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:35:00,425 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:35:00,426 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:35:00,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:35:00,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:35:00,427 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:35:00,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:35:00,427 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:35:00,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:35:00,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:35:00,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:35:00,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:35:00,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:35:00,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:35:00,428 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:35:00,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:35:00,429 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:35:00,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:35:00,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:35:00,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:35:00,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:35:00,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:35:00,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:35:00,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:35:00,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:35:00,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:35:00,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:35:00,431 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:35:00,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:35:00,431 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:35:00,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:35:00,431 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_476cf1ea-c909-48ba-af2a-41a4579d1a86/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 [2022-11-25 17:35:00,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:35:00,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:35:00,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:35:00,723 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:35:00,724 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:35:00,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-11-25 17:35:03,920 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:35:04,167 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:35:04,167 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-11-25 17:35:04,174 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/data/157c3e93a/c7e4f913c6724b46b7258e2b29a74d99/FLAGd70d56fa7 [2022-11-25 17:35:04,186 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/data/157c3e93a/c7e4f913c6724b46b7258e2b29a74d99 [2022-11-25 17:35:04,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:35:04,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:35:04,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:35:04,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:35:04,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:35:04,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:35:04" (1/1) ... [2022-11-25 17:35:04,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15288676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:04, skipping insertion in model container [2022-11-25 17:35:04,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:35:04" (1/1) ... [2022-11-25 17:35:04,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:35:04,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:35:04,371 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_476cf1ea-c909-48ba-af2a-41a4579d1a86/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2022-11-25 17:35:04,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:35:04,387 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:35:04,411 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_476cf1ea-c909-48ba-af2a-41a4579d1a86/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2022-11-25 17:35:04,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:35:04,423 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:35:04,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:04 WrapperNode [2022-11-25 17:35:04,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:35:04,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:35:04,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:35:04,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:35:04,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:04" (1/1) ... [2022-11-25 17:35:04,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:04" (1/1) ... [2022-11-25 17:35:04,465 INFO L138 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-11-25 17:35:04,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:35:04,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:35:04,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:35:04,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:35:04,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:04" (1/1) ... [2022-11-25 17:35:04,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:04" (1/1) ... [2022-11-25 17:35:04,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:04" (1/1) ... [2022-11-25 17:35:04,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:04" (1/1) ... [2022-11-25 17:35:04,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:04" (1/1) ... [2022-11-25 17:35:04,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:04" (1/1) ... [2022-11-25 17:35:04,482 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:04" (1/1) ... [2022-11-25 17:35:04,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:04" (1/1) ... [2022-11-25 17:35:04,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:35:04,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:35:04,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:35:04,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:35:04,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:04" (1/1) ... [2022-11-25 17:35:04,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:35:04,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:35:04,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:35:04,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:35:04,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:35:04,558 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-25 17:35:04,559 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-25 17:35:04,559 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-25 17:35:04,559 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-25 17:35:04,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:35:04,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:35:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:35:04,624 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:35:04,626 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:35:04,721 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:35:04,727 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:35:04,728 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:35:04,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:35:04 BoogieIcfgContainer [2022-11-25 17:35:04,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:35:04,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:35:04,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:35:04,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:35:04,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:35:04" (1/3) ... [2022-11-25 17:35:04,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da6683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:35:04, skipping insertion in model container [2022-11-25 17:35:04,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:04" (2/3) ... [2022-11-25 17:35:04,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da6683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:35:04, skipping insertion in model container [2022-11-25 17:35:04,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:35:04" (3/3) ... [2022-11-25 17:35:04,740 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_7.i [2022-11-25 17:35:04,760 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:35:04,760 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:35:04,813 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:35:04,820 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;@23612f12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:35:04,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:35:04,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:35:04,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 17:35:04,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:35:04,834 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:35:04,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:35:04,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:35:04,840 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-11-25 17:35:04,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:35:04,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781499222] [2022-11-25 17:35:04,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:35:04,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:35:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:35:04,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:35:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:35:05,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:35:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:35:05,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:35:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:35:05,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:35:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:35:05,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:35:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:35:05,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:35:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:35:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 17:35:05,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:35:05,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781499222] [2022-11-25 17:35:05,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781499222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:35:05,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:35:05,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:35:05,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224714729] [2022-11-25 17:35:05,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:35:05,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:35:05,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:35:05,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:35:05,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:35:05,119 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 17:35:05,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:35:05,147 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-11-25 17:35:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:35:05,149 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2022-11-25 17:35:05,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:35:05,154 INFO L225 Difference]: With dead ends: 49 [2022-11-25 17:35:05,155 INFO L226 Difference]: Without dead ends: 22 [2022-11-25 17:35:05,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 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 17:35:05,161 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:35:05,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:35:05,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-25 17:35:05,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-25 17:35:05,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:35:05,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-11-25 17:35:05,194 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-11-25 17:35:05,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:35:05,194 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-25 17:35:05,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 17:35:05,195 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-11-25 17:35:05,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 17:35:05,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:35:05,197 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:35:05,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:35:05,197 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:35:05,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:35:05,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-11-25 17:35:05,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:35:05,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4644813] [2022-11-25 17:35:05,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:35:05,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:35:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:35:05,222 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:35:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:35:05,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:35:05,271 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:35:05,273 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:35:05,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:35:05,278 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:35:05,282 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:35:05,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:35:05 BoogieIcfgContainer [2022-11-25 17:35:05,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:35:05,309 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:35:05,309 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:35:05,309 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:35:05,310 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:35:04" (3/4) ... [2022-11-25 17:35:05,313 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:35:05,313 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:35:05,314 INFO L158 Benchmark]: Toolchain (without parser) took 1123.85ms. Allocated memory is still 165.7MB. Free memory was 132.7MB in the beginning and 79.9MB in the end (delta: 52.7MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-11-25 17:35:05,314 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 63.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:35:05,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.20ms. Allocated memory is still 165.7MB. Free memory was 132.7MB in the beginning and 121.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:35:05,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.88ms. Allocated memory is still 165.7MB. Free memory was 121.9MB in the beginning and 120.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:35:05,316 INFO L158 Benchmark]: Boogie Preprocessor took 18.54ms. Allocated memory is still 165.7MB. Free memory was 120.6MB in the beginning and 119.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:35:05,317 INFO L158 Benchmark]: RCFGBuilder took 245.10ms. Allocated memory is still 165.7MB. Free memory was 119.4MB in the beginning and 109.7MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 17:35:05,334 INFO L158 Benchmark]: TraceAbstraction took 575.43ms. Allocated memory is still 165.7MB. Free memory was 108.9MB in the beginning and 80.3MB in the end (delta: 28.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 17:35:05,335 INFO L158 Benchmark]: Witness Printer took 4.44ms. Allocated memory is still 165.7MB. Free memory was 80.3MB in the beginning and 79.9MB in the end (delta: 412.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:35:05,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 63.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.20ms. Allocated memory is still 165.7MB. Free memory was 132.7MB in the beginning and 121.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.88ms. Allocated memory is still 165.7MB. Free memory was 121.9MB in the beginning and 120.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.54ms. Allocated memory is still 165.7MB. Free memory was 120.6MB in the beginning and 119.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 245.10ms. Allocated memory is still 165.7MB. Free memory was 119.4MB in the beginning and 109.7MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 575.43ms. Allocated memory is still 165.7MB. Free memory was 108.9MB in the beginning and 80.3MB in the end (delta: 28.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.44ms. Allocated memory is still 165.7MB. Free memory was 80.3MB in the beginning and 79.9MB in the end (delta: 412.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L42] CALL, EXPR f(IN) VAL [\old(x)=54] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=54, x=54] [L42] RET, EXPR f(IN) VAL [f(IN)=55, IN=54] [L42] CALL, EXPR fp(IN) VAL [\old(x)=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=54, x=54] [L42] RET, EXPR fp(IN) VAL [f(IN)=55, fp(IN)=59, IN=54] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=56] [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)=56, x=56] [L44] RET, EXPR f(x) VAL [f(x)=57, IN=54, x=56] [L44] CALL, EXPR fp(x) VAL [\old(x)=56] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=56, x=56] [L44] RET, EXPR fp(x) VAL [f(x)=57, fp(x)=60, IN=54, x=56] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=58] [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)=58, x=58] [L46] RET, EXPR f(x) VAL [f(x)=61, IN=54, x=58] [L46] CALL, EXPR fp(x) VAL [\old(x)=58] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=58, x=58] [L46] RET, EXPR fp(x) VAL [f(x)=61, fp(x)=53, IN=54, x=58] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=54] [L51] reach_error() VAL [IN=54] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 18/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 17:35:05,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/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_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/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_476cf1ea-c909-48ba-af2a-41a4579d1a86/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 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:35:07,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:35:07,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:35:08,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:35:08,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:35:08,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:35:08,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:35:08,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:35:08,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:35:08,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:35:08,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:35:08,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:35:08,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:35:08,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:35:08,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:35:08,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:35:08,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:35:08,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:35:08,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:35:08,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:35:08,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:35:08,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:35:08,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:35:08,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:35:08,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:35:08,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:35:08,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:35:08,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:35:08,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:35:08,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:35:08,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:35:08,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:35:08,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:35:08,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:35:08,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:35:08,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:35:08,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:35:08,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:35:08,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:35:08,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:35:08,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:35:08,111 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-25 17:35:08,156 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:35:08,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:35:08,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:35:08,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:35:08,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:35:08,158 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:35:08,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:35:08,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:35:08,159 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:35:08,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:35:08,159 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:35:08,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:35:08,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:35:08,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:35:08,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:35:08,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:35:08,164 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:35:08,164 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:35:08,165 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:35:08,165 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:35:08,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:35:08,165 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:35:08,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:35:08,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:35:08,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:35:08,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:35:08,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:35:08,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:35:08,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:35:08,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:35:08,168 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:35:08,168 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:35:08,168 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:35:08,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:35:08,169 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:35:08,169 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:35:08,169 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:35:08,170 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_476cf1ea-c909-48ba-af2a-41a4579d1a86/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 [2022-11-25 17:35:08,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:35:08,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:35:08,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:35:08,612 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:35:08,612 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:35:08,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-11-25 17:35:11,834 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:35:12,127 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:35:12,128 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-11-25 17:35:12,139 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/data/3f56d57f5/1ed415da92ee41be882c1f1dc0fb2fdb/FLAG3a7f9d900 [2022-11-25 17:35:12,165 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/data/3f56d57f5/1ed415da92ee41be882c1f1dc0fb2fdb [2022-11-25 17:35:12,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:35:12,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:35:12,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:35:12,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:35:12,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:35:12,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:35:12" (1/1) ... [2022-11-25 17:35:12,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a819657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:12, skipping insertion in model container [2022-11-25 17:35:12,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:35:12" (1/1) ... [2022-11-25 17:35:12,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:35:12,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:35:12,446 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_476cf1ea-c909-48ba-af2a-41a4579d1a86/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2022-11-25 17:35:12,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:35:12,479 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:35:12,520 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_476cf1ea-c909-48ba-af2a-41a4579d1a86/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2022-11-25 17:35:12,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:35:12,540 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:35:12,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:12 WrapperNode [2022-11-25 17:35:12,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:35:12,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:35:12,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:35:12,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:35:12,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:12" (1/1) ... [2022-11-25 17:35:12,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:12" (1/1) ... [2022-11-25 17:35:12,596 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-25 17:35:12,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:35:12,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:35:12,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:35:12,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:35:12,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:12" (1/1) ... [2022-11-25 17:35:12,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:12" (1/1) ... [2022-11-25 17:35:12,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:12" (1/1) ... [2022-11-25 17:35:12,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:12" (1/1) ... [2022-11-25 17:35:12,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:12" (1/1) ... [2022-11-25 17:35:12,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:12" (1/1) ... [2022-11-25 17:35:12,649 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:12" (1/1) ... [2022-11-25 17:35:12,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:12" (1/1) ... [2022-11-25 17:35:12,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:35:12,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:35:12,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:35:12,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:35:12,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:12" (1/1) ... [2022-11-25 17:35:12,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:35:12,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:35:12,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:35:12,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:35:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:35:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-25 17:35:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-25 17:35:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 17:35:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-25 17:35:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-25 17:35:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:35:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:35:12,822 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:35:12,824 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:35:23,781 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:35:23,788 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:35:23,788 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:35:23,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:35:23 BoogieIcfgContainer [2022-11-25 17:35:23,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:35:23,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:35:23,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:35:23,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:35:23,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:35:12" (1/3) ... [2022-11-25 17:35:23,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf7bc1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:35:23, skipping insertion in model container [2022-11-25 17:35:23,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:35:12" (2/3) ... [2022-11-25 17:35:23,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf7bc1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:35:23, skipping insertion in model container [2022-11-25 17:35:23,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:35:23" (3/3) ... [2022-11-25 17:35:23,800 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_7.i [2022-11-25 17:35:23,819 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:35:23,820 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:35:23,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:35:23,878 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;@3f63f877, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:35:23,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:35:23,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:35:23,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 17:35:23,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:35:23,892 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:35:23,893 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:35:23,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:35:23,899 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-11-25 17:35:23,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:35:23,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329280139] [2022-11-25 17:35:23,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:35:23,915 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 17:35:23,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:35:23,924 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/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 17:35:23,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/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 17:35:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:35:27,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 17:35:27,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:35:27,813 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 17:35:27,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:35:27,814 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:35:27,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329280139] [2022-11-25 17:35:27,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329280139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:35:27,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:35:27,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:35:27,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954716684] [2022-11-25 17:35:27,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:35:27,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:35:27,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:35:27,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:35:27,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:35:27,854 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 17:35:27,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:35:27,877 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-11-25 17:35:27,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:35:27,879 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2022-11-25 17:35:27,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:35:27,886 INFO L225 Difference]: With dead ends: 49 [2022-11-25 17:35:27,887 INFO L226 Difference]: Without dead ends: 22 [2022-11-25 17:35:27,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:35:27,894 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:35:27,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:35:27,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-25 17:35:27,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-25 17:35:27,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:35:27,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-11-25 17:35:27,933 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-11-25 17:35:27,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:35:27,934 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-25 17:35:27,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 17:35:27,934 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-11-25 17:35:27,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 17:35:27,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:35:27,937 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:35:28,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/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 17:35:28,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/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 17:35:28,152 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:35:28,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:35:28,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-11-25 17:35:28,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:35:28,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784512713] [2022-11-25 17:35:28,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:35:28,155 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 17:35:28,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:35:28,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/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 17:35:28,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/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 17:36:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:36:04,509 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:38:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:38:34,429 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 17:38:34,430 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:38:34,431 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:38:34,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/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 17:38:34,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/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 17:38:34,636 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:38:34,640 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:38:34,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:38:34 BoogieIcfgContainer [2022-11-25 17:38:34,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:38:34,694 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:38:34,696 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:38:34,697 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:38:34,697 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:35:23" (3/4) ... [2022-11-25 17:38:34,699 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 17:38:34,765 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:38:34,765 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:38:34,766 INFO L158 Benchmark]: Toolchain (without parser) took 202591.23ms. Allocated memory is still 81.8MB. Free memory was 60.0MB in the beginning and 52.2MB in the end (delta: 7.7MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-11-25 17:38:34,767 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 62.9MB. Free memory was 41.4MB in the beginning and 41.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:38:34,767 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.65ms. Allocated memory is still 81.8MB. Free memory was 59.8MB in the beginning and 48.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:38:34,767 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.08ms. Allocated memory is still 81.8MB. Free memory was 48.7MB in the beginning and 47.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:38:34,768 INFO L158 Benchmark]: Boogie Preprocessor took 59.84ms. Allocated memory is still 81.8MB. Free memory was 47.0MB in the beginning and 45.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:38:34,768 INFO L158 Benchmark]: RCFGBuilder took 11131.67ms. Allocated memory is still 81.8MB. Free memory was 45.6MB in the beginning and 58.4MB in the end (delta: -12.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2022-11-25 17:38:34,769 INFO L158 Benchmark]: TraceAbstraction took 190900.61ms. Allocated memory is still 81.8MB. Free memory was 57.5MB in the beginning and 54.8MB in the end (delta: 2.7MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2022-11-25 17:38:34,769 INFO L158 Benchmark]: Witness Printer took 71.57ms. Allocated memory is still 81.8MB. Free memory was 54.8MB in the beginning and 52.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:38:34,771 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 62.9MB. Free memory was 41.4MB in the beginning and 41.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.65ms. Allocated memory is still 81.8MB. Free memory was 59.8MB in the beginning and 48.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.08ms. Allocated memory is still 81.8MB. Free memory was 48.7MB in the beginning and 47.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.84ms. Allocated memory is still 81.8MB. Free memory was 47.0MB in the beginning and 45.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 11131.67ms. Allocated memory is still 81.8MB. Free memory was 45.6MB in the beginning and 58.4MB in the end (delta: -12.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * TraceAbstraction took 190900.61ms. Allocated memory is still 81.8MB. Free memory was 57.5MB in the beginning and 54.8MB in the end (delta: 2.7MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. * Witness Printer took 71.57ms. Allocated memory is still 81.8MB. Free memory was 54.8MB in the beginning and 52.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 51]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L42] CALL, EXPR f(IN) VAL [\old(x)=-1.1654444932937622] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.1654444932937622, \result=-0.9201117753982544, x=-1.1654444932937622] [L42] RET, EXPR f(IN) VAL [f(IN)=-0.9201117753982544, IN=-1.1654444932937622] [L42] CALL, EXPR fp(IN) VAL [\old(x)=-1.1654444932937622] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.1654444932937622, \result=0.40121957659721375, x=-1.1654444932937622] [L42] RET, EXPR fp(IN) VAL [f(IN)=-0.9201117753982544, fp(IN)=0.40121957659721375, IN=-1.1654444932937622] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=1.1278427839279175] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=1.1278427839279175, \result=0.9044027924537659, x=1.1278427839279175] [L44] RET, EXPR f(x) VAL [f(x)=0.9044027924537659, IN=-1.1654444932937622, x=1.1278427839279175] [L44] CALL, EXPR fp(x) VAL [\old(x)=1.1278427839279175] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.1278427839279175, \result=0.43426305055618286, x=1.1278427839279175] [L44] RET, EXPR fp(x) VAL [f(x)=0.9044027924537659, fp(x)=0.43426305055618286, IN=-1.1654444932937622, x=1.1278427839279175] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=-0.9547723531723022] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.9547723531723022, \result=-0.8164674639701843, x=-0.9547723531723022] [L46] RET, EXPR f(x) VAL [f(x)=-0.8164674639701843, IN=-1.1654444932937622, x=-0.9547723531723022] [L46] CALL, EXPR fp(x) VAL [\old(x)=-0.9547723531723022] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.9547723531723022, \result=0.5798819065093994, x=-0.9547723531723022] [L46] RET, EXPR fp(x) VAL [f(x)=-0.8164674639701843, fp(x)=0.5798819065093994, IN=-1.1654444932937622, x=-0.9547723531723022] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=-1.1654444932937622, x=0.45321691036224365] [L51] reach_error() VAL [IN=-1.1654444932937622, x=0.45321691036224365] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 190.8s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 39.9s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 64 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 18/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 17:38:34,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476cf1ea-c909-48ba-af2a-41a4579d1a86/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