./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS --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 487cb753ab668f0dc3893a3ab2fa6b5020a9a953baa1eebb275c5ff36ca3ae95 --- 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-4e7fbc6 [2022-11-23 02:35:20,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:35:20,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:35:20,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:35:20,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:35:20,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:35:20,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:35:20,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:35:20,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:35:20,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:35:20,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:35:20,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:35:20,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:35:20,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:35:20,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:35:20,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:35:20,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:35:20,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:35:20,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:35:20,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:35:20,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:35:20,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:35:20,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:35:20,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:35:20,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:35:20,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:35:20,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:35:20,576 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:35:20,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:35:20,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:35:20,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:35:20,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:35:20,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:35:20,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:35:20,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:35:20,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:35:20,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:35:20,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:35:20,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:35:20,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:35:20,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:35:20,587 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 02:35:20,609 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:35:20,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:35:20,610 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:35:20,610 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:35:20,611 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:35:20,611 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:35:20,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:35:20,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:35:20,613 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:35:20,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:35:20,613 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:35:20,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:35:20,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:35:20,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:35:20,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:35:20,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:35:20,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:35:20,615 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:35:20,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:35:20,615 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:35:20,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:35:20,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:35:20,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:35:20,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:35:20,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:35:20,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:35:20,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:35:20,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:35:20,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:35:20,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:35:20,618 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:35:20,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:35:20,619 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:35:20,619 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:35:20,619 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_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 487cb753ab668f0dc3893a3ab2fa6b5020a9a953baa1eebb275c5ff36ca3ae95 [2022-11-23 02:35:20,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:35:21,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:35:21,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:35:21,025 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:35:21,026 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:35:21,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/floats-cdfpl/newton_3_1.i [2022-11-23 02:35:24,347 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:35:24,580 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:35:24,581 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/sv-benchmarks/c/floats-cdfpl/newton_3_1.i [2022-11-23 02:35:24,590 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/data/5d9eea496/d1ca1519af084cd6ab91b60ad1ad79d7/FLAGa53557077 [2022-11-23 02:35:24,607 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/data/5d9eea496/d1ca1519af084cd6ab91b60ad1ad79d7 [2022-11-23 02:35:24,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:35:24,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:35:24,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:35:24,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:35:24,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:35:24,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:35:24" (1/1) ... [2022-11-23 02:35:24,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51b6d077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:24, skipping insertion in model container [2022-11-23 02:35:24,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:35:24" (1/1) ... [2022-11-23 02:35:24,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:35:24,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:35:24,913 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_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/sv-benchmarks/c/floats-cdfpl/newton_3_1.i[1764,1777] [2022-11-23 02:35:24,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:35:24,929 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:35:24,951 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_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/sv-benchmarks/c/floats-cdfpl/newton_3_1.i[1764,1777] [2022-11-23 02:35:24,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:35:24,968 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:35:24,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:24 WrapperNode [2022-11-23 02:35:24,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:35:24,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:35:24,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:35:24,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:35:24,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:24" (1/1) ... [2022-11-23 02:35:24,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:24" (1/1) ... [2022-11-23 02:35:25,011 INFO L138 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-11-23 02:35:25,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:35:25,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:35:25,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:35:25,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:35:25,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:24" (1/1) ... [2022-11-23 02:35:25,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:24" (1/1) ... [2022-11-23 02:35:25,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:24" (1/1) ... [2022-11-23 02:35:25,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:24" (1/1) ... [2022-11-23 02:35:25,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:24" (1/1) ... [2022-11-23 02:35:25,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:24" (1/1) ... [2022-11-23 02:35:25,054 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:24" (1/1) ... [2022-11-23 02:35:25,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:24" (1/1) ... [2022-11-23 02:35:25,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:35:25,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:35:25,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:35:25,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:35:25,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:24" (1/1) ... [2022-11-23 02:35:25,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:35:25,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:35:25,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:35:25,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:35:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:35:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-23 02:35:25,150 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-23 02:35:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-23 02:35:25,151 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-23 02:35:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:35:25,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:35:25,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:35:25,239 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:35:25,241 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:35:25,450 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:35:25,458 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:35:25,458 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:35:25,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:25 BoogieIcfgContainer [2022-11-23 02:35:25,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:35:25,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:35:25,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:35:25,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:35:25,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:35:24" (1/3) ... [2022-11-23 02:35:25,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a24720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:35:25, skipping insertion in model container [2022-11-23 02:35:25,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:24" (2/3) ... [2022-11-23 02:35:25,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a24720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:35:25, skipping insertion in model container [2022-11-23 02:35:25,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:25" (3/3) ... [2022-11-23 02:35:25,472 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_1.i [2022-11-23 02:35:25,509 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:35:25,511 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 02:35:25,626 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:35:25,634 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;@65163517, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:35:25,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 02:35:25,640 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) [2022-11-23 02:35:25,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 02:35:25,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:35:25,652 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] [2022-11-23 02:35:25,653 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:35:25,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:35:25,659 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-11-23 02:35:25,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:35:25,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64319720] [2022-11-23 02:35:25,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:35:25,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:35:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:25,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 02:35:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:25,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 02:35:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:25,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-23 02:35:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:25,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 02:35:25,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:25,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-23 02:35:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:25,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-23 02:35:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:25,999 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 02:35:26,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:35:26,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64319720] [2022-11-23 02:35:26,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64319720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:35:26,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:35:26,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:35:26,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437607738] [2022-11-23 02:35:26,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:35:26,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 02:35:26,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:35:26,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 02:35:26,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 02:35:26,051 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) [2022-11-23 02:35:26,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:35:26,077 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-11-23 02:35:26,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 02:35:26,080 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 [2022-11-23 02:35:26,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:35:26,089 INFO L225 Difference]: With dead ends: 49 [2022-11-23 02:35:26,089 INFO L226 Difference]: Without dead ends: 22 [2022-11-23 02:35:26,093 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 [2022-11-23 02:35:26,098 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 [2022-11-23 02:35:26,099 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] [2022-11-23 02:35:26,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-23 02:35:26,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-23 02:35:26,142 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) [2022-11-23 02:35:26,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-11-23 02:35:26,145 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-11-23 02:35:26,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:35:26,146 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-23 02:35:26,146 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) [2022-11-23 02:35:26,147 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-11-23 02:35:26,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 02:35:26,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:35:26,149 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] [2022-11-23 02:35:26,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:35:26,150 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:35:26,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:35:26,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-11-23 02:35:26,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:35:26,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735952974] [2022-11-23 02:35:26,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:35:26,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:35:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:35:26,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:35:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:35:26,290 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:35:26,290 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 02:35:26,293 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 02:35:26,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:35:26,303 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 02:35:26,309 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:35:26,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:35:26 BoogieIcfgContainer [2022-11-23 02:35:26,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:35:26,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:35:26,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:35:26,376 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:35:26,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:25" (3/4) ... [2022-11-23 02:35:26,382 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 02:35:26,382 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:35:26,384 INFO L158 Benchmark]: Toolchain (without parser) took 1771.83ms. Allocated memory is still 153.1MB. Free memory was 114.4MB in the beginning and 73.9MB in the end (delta: 40.5MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2022-11-23 02:35:26,386 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:35:26,391 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.60ms. Allocated memory is still 153.1MB. Free memory was 114.0MB in the beginning and 116.5MB in the end (delta: -2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:35:26,392 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.11ms. Allocated memory is still 153.1MB. Free memory was 116.5MB in the beginning and 114.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:35:26,393 INFO L158 Benchmark]: Boogie Preprocessor took 44.90ms. Allocated memory is still 153.1MB. Free memory was 114.9MB in the beginning and 113.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:35:26,393 INFO L158 Benchmark]: RCFGBuilder took 402.81ms. Allocated memory is still 153.1MB. Free memory was 113.7MB in the beginning and 103.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 02:35:26,394 INFO L158 Benchmark]: TraceAbstraction took 910.56ms. Allocated memory is still 153.1MB. Free memory was 102.8MB in the beginning and 73.9MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-23 02:35:26,394 INFO L158 Benchmark]: Witness Printer took 8.04ms. Allocated memory is still 153.1MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:35:26,398 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.60ms. Allocated memory is still 153.1MB. Free memory was 114.0MB in the beginning and 116.5MB in the end (delta: -2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.11ms. Allocated memory is still 153.1MB. Free memory was 116.5MB in the beginning and 114.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.90ms. Allocated memory is still 153.1MB. Free memory was 114.9MB in the beginning and 113.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.81ms. Allocated memory is still 153.1MB. Free memory was 113.7MB in the beginning and 103.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 910.56ms. Allocated memory is still 153.1MB. Free memory was 102.8MB in the beginning and 73.9MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 8.04ms. Allocated memory is still 153.1MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 > -0.2f && IN < 0.2f) [L24] COND FALSE !(!cond) VAL [cond=1, unknown-#in~cond-unknown=1] [L40] RET assume_abort_if_not(IN > -0.2f && IN < 0.2f) [L42] CALL, EXPR f(IN) VAL [unknown-#in~x-unknown=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 [unknown-#in~x-unknown=54, x=54] [L42] RET, EXPR f(IN) VAL [f(IN)=55, IN=54] [L42] CALL, EXPR fp(IN) VAL [unknown-#in~x-unknown=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [unknown-#in~x-unknown=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 [unknown-#in~x-unknown=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 [unknown-#in~x-unknown=56, x=56] [L44] RET, EXPR f(x) VAL [f(x)=57, IN=54, x=56] [L44] CALL, EXPR fp(x) VAL [unknown-#in~x-unknown=56] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [unknown-#in~x-unknown=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 [unknown-#in~x-unknown=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 [unknown-#in~x-unknown=58, x=58] [L46] RET, EXPR f(x) VAL [f(x)=61, IN=54, x=58] [L46] CALL, EXPR fp(x) VAL [unknown-#in~x-unknown=58] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [unknown-#in~x-unknown=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: 0.7s, 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, 0.1s SatisfiabilityAnalysisTime, 0.2s 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 [2022-11-23 02:35:26,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS --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 487cb753ab668f0dc3893a3ab2fa6b5020a9a953baa1eebb275c5ff36ca3ae95 --- 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-4e7fbc6 [2022-11-23 02:35:29,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:35:29,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:35:29,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:35:29,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:35:29,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:35:29,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:35:29,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:35:29,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:35:29,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:35:29,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:35:29,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:35:29,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:35:29,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:35:29,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:35:29,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:35:29,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:35:29,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:35:29,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:35:29,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:35:29,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:35:29,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:35:29,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:35:29,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:35:29,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:35:29,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:35:29,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:35:29,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:35:29,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:35:29,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:35:29,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:35:29,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:35:29,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:35:29,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:35:29,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:35:29,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:35:29,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:35:29,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:35:29,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:35:29,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:35:29,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:35:29,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-23 02:35:29,512 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:35:29,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:35:29,514 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:35:29,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:35:29,516 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:35:29,516 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:35:29,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:35:29,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:35:29,517 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:35:29,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:35:29,519 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:35:29,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:35:29,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:35:29,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:35:29,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:35:29,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:35:29,521 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 02:35:29,521 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 02:35:29,521 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 02:35:29,522 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:35:29,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:35:29,522 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:35:29,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:35:29,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:35:29,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:35:29,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:35:29,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:35:29,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:35:29,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:35:29,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:35:29,525 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 02:35:29,525 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 02:35:29,526 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:35:29,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:35:29,526 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:35:29,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:35:29,527 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 02:35:29,527 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_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 487cb753ab668f0dc3893a3ab2fa6b5020a9a953baa1eebb275c5ff36ca3ae95 [2022-11-23 02:35:29,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:35:29,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:35:29,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:35:29,977 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:35:29,977 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:35:29,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/floats-cdfpl/newton_3_1.i [2022-11-23 02:35:33,937 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:35:34,204 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:35:34,205 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/sv-benchmarks/c/floats-cdfpl/newton_3_1.i [2022-11-23 02:35:34,213 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/data/b7dcb9a2e/290bcf2cbbc841b8affbec030c0ede0a/FLAG80957757f [2022-11-23 02:35:34,236 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/data/b7dcb9a2e/290bcf2cbbc841b8affbec030c0ede0a [2022-11-23 02:35:34,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:35:34,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:35:34,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:35:34,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:35:34,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:35:34,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:35:34" (1/1) ... [2022-11-23 02:35:34,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@439c3b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:34, skipping insertion in model container [2022-11-23 02:35:34,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:35:34" (1/1) ... [2022-11-23 02:35:34,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:35:34,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:35:34,480 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_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/sv-benchmarks/c/floats-cdfpl/newton_3_1.i[1764,1777] [2022-11-23 02:35:34,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:35:34,516 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:35:34,555 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_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/sv-benchmarks/c/floats-cdfpl/newton_3_1.i[1764,1777] [2022-11-23 02:35:34,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:35:34,574 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:35:34,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:34 WrapperNode [2022-11-23 02:35:34,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:35:34,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:35:34,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:35:34,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:35:34,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:34" (1/1) ... [2022-11-23 02:35:34,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:34" (1/1) ... [2022-11-23 02:35:34,639 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-23 02:35:34,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:35:34,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:35:34,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:35:34,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:35:34,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:34" (1/1) ... [2022-11-23 02:35:34,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:34" (1/1) ... [2022-11-23 02:35:34,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:34" (1/1) ... [2022-11-23 02:35:34,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:34" (1/1) ... [2022-11-23 02:35:34,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:34" (1/1) ... [2022-11-23 02:35:34,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:34" (1/1) ... [2022-11-23 02:35:34,694 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:34" (1/1) ... [2022-11-23 02:35:34,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:34" (1/1) ... [2022-11-23 02:35:34,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:35:34,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:35:34,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:35:34,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:35:34,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:34" (1/1) ... [2022-11-23 02:35:34,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:35:34,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:35:34,765 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:35:34,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:35:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:35:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-23 02:35:34,853 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-23 02:35:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 02:35:34,854 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-11-23 02:35:34,854 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-11-23 02:35:34,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:35:34,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:35:34,947 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:35:34,949 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:35:44,388 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:35:44,397 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:35:44,397 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:35:44,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:44 BoogieIcfgContainer [2022-11-23 02:35:44,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:35:44,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:35:44,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:35:44,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:35:44,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:35:34" (1/3) ... [2022-11-23 02:35:44,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e43e6c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:35:44, skipping insertion in model container [2022-11-23 02:35:44,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:34" (2/3) ... [2022-11-23 02:35:44,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e43e6c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:35:44, skipping insertion in model container [2022-11-23 02:35:44,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:44" (3/3) ... [2022-11-23 02:35:44,411 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_1.i [2022-11-23 02:35:44,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:35:44,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 02:35:44,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:35:44,502 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;@19c40fee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:35:44,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 02:35:44,508 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) [2022-11-23 02:35:44,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 02:35:44,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:35:44,519 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] [2022-11-23 02:35:44,519 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:35:44,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:35:44,524 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-11-23 02:35:44,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:35:44,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765557582] [2022-11-23 02:35:44,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:35:44,539 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 [2022-11-23 02:35:44,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:35:44,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 02:35:44,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 02:35:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:48,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 02:35:48,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:35:48,639 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 02:35:48,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:35:48,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 02:35:48,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765557582] [2022-11-23 02:35:48,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765557582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:35:48,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:35:48,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:35:48,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088467154] [2022-11-23 02:35:48,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:35:48,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 02:35:48,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 02:35:48,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 02:35:48,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 02:35:48,688 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) [2022-11-23 02:35:48,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:35:48,715 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-11-23 02:35:48,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 02:35:48,718 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 [2022-11-23 02:35:48,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:35:48,727 INFO L225 Difference]: With dead ends: 49 [2022-11-23 02:35:48,727 INFO L226 Difference]: Without dead ends: 22 [2022-11-23 02:35:48,731 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 [2022-11-23 02:35:48,736 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 [2022-11-23 02:35:48,737 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] [2022-11-23 02:35:48,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-23 02:35:48,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-23 02:35:48,779 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) [2022-11-23 02:35:48,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-11-23 02:35:48,782 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-11-23 02:35:48,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:35:48,783 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-23 02:35:48,783 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) [2022-11-23 02:35:48,783 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-11-23 02:35:48,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 02:35:48,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:35:48,786 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] [2022-11-23 02:35:48,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-23 02:35:48,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 02:35:48,988 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:35:48,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:35:48,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-11-23 02:35:48,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:35:48,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528519971] [2022-11-23 02:35:48,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:35:48,991 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 [2022-11-23 02:35:48,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:35:48,993 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 02:35:48,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1b92d0-fb2c-4dfa-b6d9-441cd5174cf0/bin/uautomizer-QkZJyEgLgS/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