./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --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 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:21:23,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:21:23,276 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:21:23,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:21:23,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:21:23,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:21:23,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:21:23,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:21:23,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:21:23,299 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:21:23,299 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:21:23,299 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:21:23,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:21:23,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:21:23,300 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:21:23,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:21:23,300 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:21:23,300 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:21:23,300 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:21:23,301 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:21:23,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:21:23,301 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:21:23,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:21:23,301 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:21:23,301 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:21:23,301 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:21:23,301 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:21:23,301 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:21:23,301 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:21:23,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:21:23,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:21:23,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:21:23,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:21:23,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:21:23,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:21:23,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:21:23,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:21:23,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:21:23,302 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:21:23,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:21:23,303 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:21:23,303 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:21:23,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:21:23,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:21:23,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:21:23,303 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:21:23,303 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:21:23,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:21:23,303 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d [2024-12-02 10:21:23,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:21:23,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:21:23,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:21:23,535 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:21:23,535 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:21:23,537 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2024-12-02 10:21:26,208 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/data/b8bd8b6d1/eeafda6cc2254561b379dd66eb565996/FLAGd3639f663 [2024-12-02 10:21:26,430 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:21:26,431 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2024-12-02 10:21:26,439 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/data/b8bd8b6d1/eeafda6cc2254561b379dd66eb565996/FLAGd3639f663 [2024-12-02 10:21:26,793 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/data/b8bd8b6d1/eeafda6cc2254561b379dd66eb565996 [2024-12-02 10:21:26,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:21:26,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:21:26,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:21:26,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:21:26,804 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:21:26,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:21:26" (1/1) ... [2024-12-02 10:21:26,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa26c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:26, skipping insertion in model container [2024-12-02 10:21:26,806 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:21:26" (1/1) ... [2024-12-02 10:21:26,822 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:21:26,987 WARN L250 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_d1168057-fe90-46d5-8455-e05ff01c11d5/sv-benchmarks/c/floats-cdfpl/newton_3_8.i[1764,1777] [2024-12-02 10:21:26,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:21:27,000 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:21:27,017 WARN L250 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_d1168057-fe90-46d5-8455-e05ff01c11d5/sv-benchmarks/c/floats-cdfpl/newton_3_8.i[1764,1777] [2024-12-02 10:21:27,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:21:27,031 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:21:27,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:27 WrapperNode [2024-12-02 10:21:27,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:21:27,033 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:21:27,033 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:21:27,033 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:21:27,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:27" (1/1) ... [2024-12-02 10:21:27,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:27" (1/1) ... [2024-12-02 10:21:27,060 INFO L138 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2024-12-02 10:21:27,060 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:21:27,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:21:27,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:21:27,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:21:27,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:27" (1/1) ... [2024-12-02 10:21:27,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:27" (1/1) ... [2024-12-02 10:21:27,069 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:27" (1/1) ... [2024-12-02 10:21:27,079 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 10:21:27,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:27" (1/1) ... [2024-12-02 10:21:27,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:27" (1/1) ... [2024-12-02 10:21:27,083 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:27" (1/1) ... [2024-12-02 10:21:27,084 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:27" (1/1) ... [2024-12-02 10:21:27,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:27" (1/1) ... [2024-12-02 10:21:27,087 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:27" (1/1) ... [2024-12-02 10:21:27,088 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:27" (1/1) ... [2024-12-02 10:21:27,089 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:21:27,090 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:21:27,090 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:21:27,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:21:27,091 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:27" (1/1) ... [2024-12-02 10:21:27,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:21:27,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:21:27,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:21:27,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:21:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:21:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-02 10:21:27,156 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-02 10:21:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-12-02 10:21:27,156 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-12-02 10:21:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:21:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:21:27,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:21:27,219 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:21:27,220 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:21:27,338 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-12-02 10:21:27,338 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:21:27,346 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:21:27,347 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 10:21:27,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:21:27 BoogieIcfgContainer [2024-12-02 10:21:27,347 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:21:27,349 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:21:27,349 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:21:27,353 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:21:27,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:21:26" (1/3) ... [2024-12-02 10:21:27,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a61fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:21:27, skipping insertion in model container [2024-12-02 10:21:27,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:27" (2/3) ... [2024-12-02 10:21:27,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a61fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:21:27, skipping insertion in model container [2024-12-02 10:21:27,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:21:27" (3/3) ... [2024-12-02 10:21:27,355 INFO L128 eAbstractionObserver]: Analyzing ICFG newton_3_8.i [2024-12-02 10:21:27,367 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:21:27,369 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG newton_3_8.i that has 3 procedures, 26 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 10:21:27,414 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:21:27,425 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@4bd550d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:21:27,425 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:21:27,428 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) [2024-12-02 10:21:27,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-02 10:21:27,433 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:27,434 INFO L218 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] [2024-12-02 10:21:27,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:27,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:27,439 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2024-12-02 10:21:27,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:27,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970696624] [2024-12-02 10:21:27,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:27,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:27,560 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 10:21:27,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:27,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970696624] [2024-12-02 10:21:27,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970696624] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:27,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:27,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:21:27,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144839920] [2024-12-02 10:21:27,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:27,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 10:21:27,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:27,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 10:21:27,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:21:27,591 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) [2024-12-02 10:21:27,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:27,607 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2024-12-02 10:21:27,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 10:21:27,608 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 [2024-12-02 10:21:27,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:27,613 INFO L225 Difference]: With dead ends: 49 [2024-12-02 10:21:27,613 INFO L226 Difference]: Without dead ends: 22 [2024-12-02 10:21:27,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:21:27,618 INFO L435 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 [2024-12-02 10:21:27,619 INFO L436 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] [2024-12-02 10:21:27,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-12-02 10:21:27,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-12-02 10:21:27,643 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) [2024-12-02 10:21:27,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-12-02 10:21:27,647 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2024-12-02 10:21:27,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:27,648 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-12-02 10:21:27,648 INFO L472 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) [2024-12-02 10:21:27,648 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-12-02 10:21:27,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-02 10:21:27,649 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:27,650 INFO L218 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] [2024-12-02 10:21:27,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:21:27,650 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:27,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:27,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2024-12-02 10:21:27,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:27,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520560702] [2024-12-02 10:21:27,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:27,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:21:27,675 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:21:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:21:27,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 10:21:27,705 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 10:21:27,706 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 10:21:27,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:21:27,710 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 10:21:27,726 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 10:21:27,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:21:27 BoogieIcfgContainer [2024-12-02 10:21:27,729 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 10:21:27,729 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 10:21:27,729 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 10:21:27,729 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 10:21:27,730 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:21:27" (3/4) ... [2024-12-02 10:21:27,732 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 10:21:27,732 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 10:21:27,733 INFO L158 Benchmark]: Toolchain (without parser) took 936.42ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 46.4MB in the end (delta: 46.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-12-02 10:21:27,733 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:21:27,734 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.85ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 81.6MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:21:27,734 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.54ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:21:27,735 INFO L158 Benchmark]: Boogie Preprocessor took 28.75ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.1MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:21:27,735 INFO L158 Benchmark]: RCFGBuilder took 257.19ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 68.8MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:21:27,735 INFO L158 Benchmark]: TraceAbstraction took 380.01ms. Allocated memory is still 117.4MB. Free memory was 68.3MB in the beginning and 46.8MB in the end (delta: 21.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 10:21:27,736 INFO L158 Benchmark]: Witness Printer took 3.33ms. Allocated memory is still 117.4MB. Free memory was 46.6MB in the beginning and 46.4MB in the end (delta: 195.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:21:27,738 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.85ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 81.6MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.54ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.75ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.1MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 257.19ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 68.8MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 380.01ms. Allocated memory is still 117.4MB. Free memory was 68.3MB in the beginning and 46.8MB in the end (delta: 21.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.33ms. Allocated memory is still 117.4MB. Free memory was 46.6MB in the beginning and 46.4MB in the end (delta: 195.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: Unable to prove that a call to reach_error is unreachable Unable to prove that a 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, overapproximation of someBinaryArithmeticFLOAToperation at line 34, overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of someBinaryArithmeticFLOAToperation at line 29, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L42] CALL, EXPR f(IN) VAL [\old(x)=53] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=53] [L42] RET, EXPR f(IN) VAL [IN=53] [L42] CALL, EXPR fp(IN) VAL [\old(x)=53] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=53] [L42] RET, EXPR fp(IN) VAL [IN=53] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=55] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=55] [L44] RET, EXPR f(x) VAL [IN=53, x=55] [L44] CALL, EXPR fp(x) VAL [\old(x)=55] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=55] [L44] RET, EXPR fp(x) VAL [IN=53, x=55] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=54] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=54] [L46] RET, EXPR f(x) VAL [IN=53, x=54] [L46] CALL, EXPR fp(x) VAL [\old(x)=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=54] [L46] RET, EXPR fp(x) VAL [IN=53, x=54] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=53] [L51] reach_error() VAL [IN=53] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 2 GetRequests, 2 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, 0.0s 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 10:21:27,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --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 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:21:29,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:21:29,904 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 10:21:29,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:21:29,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:21:29,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:21:29,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:21:29,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:21:29,935 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:21:29,935 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:21:29,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:21:29,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:21:29,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:21:29,936 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:21:29,936 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:21:29,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:21:29,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:21:29,937 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:21:29,937 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:21:29,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:21:29,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:21:29,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:21:29,937 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:21:29,937 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 10:21:29,937 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 10:21:29,938 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 10:21:29,938 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:21:29,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:21:29,938 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:21:29,938 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:21:29,938 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:21:29,938 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:21:29,938 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:21:29,938 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:21:29,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:21:29,939 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:21:29,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:21:29,939 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:21:29,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:21:29,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:21:29,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:21:29,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:21:29,939 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:21:29,939 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:21:29,940 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 10:21:29,940 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 10:21:29,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:21:29,940 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:21:29,940 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:21:29,940 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:21:29,940 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d [2024-12-02 10:21:30,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:21:30,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:21:30,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:21:30,202 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:21:30,202 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:21:30,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2024-12-02 10:21:32,928 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/data/3da3ac2ff/1a2217c9d73d4fba8ecd7088ccd099c7/FLAG32a78fe60 [2024-12-02 10:21:33,123 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:21:33,124 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2024-12-02 10:21:33,133 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/data/3da3ac2ff/1a2217c9d73d4fba8ecd7088ccd099c7/FLAG32a78fe60 [2024-12-02 10:21:33,149 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/data/3da3ac2ff/1a2217c9d73d4fba8ecd7088ccd099c7 [2024-12-02 10:21:33,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:21:33,153 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:21:33,155 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:21:33,155 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:21:33,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:21:33,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:21:33" (1/1) ... [2024-12-02 10:21:33,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eebe6f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33, skipping insertion in model container [2024-12-02 10:21:33,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:21:33" (1/1) ... [2024-12-02 10:21:33,178 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:21:33,348 WARN L250 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_d1168057-fe90-46d5-8455-e05ff01c11d5/sv-benchmarks/c/floats-cdfpl/newton_3_8.i[1764,1777] [2024-12-02 10:21:33,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:21:33,366 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:21:33,383 WARN L250 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_d1168057-fe90-46d5-8455-e05ff01c11d5/sv-benchmarks/c/floats-cdfpl/newton_3_8.i[1764,1777] [2024-12-02 10:21:33,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:21:33,397 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:21:33,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33 WrapperNode [2024-12-02 10:21:33,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:21:33,399 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:21:33,399 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:21:33,399 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:21:33,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33" (1/1) ... [2024-12-02 10:21:33,413 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33" (1/1) ... [2024-12-02 10:21:33,429 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2024-12-02 10:21:33,429 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:21:33,430 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:21:33,430 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:21:33,430 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:21:33,439 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33" (1/1) ... [2024-12-02 10:21:33,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33" (1/1) ... [2024-12-02 10:21:33,442 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33" (1/1) ... [2024-12-02 10:21:33,453 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 10:21:33,453 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33" (1/1) ... [2024-12-02 10:21:33,453 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33" (1/1) ... [2024-12-02 10:21:33,460 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33" (1/1) ... [2024-12-02 10:21:33,461 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33" (1/1) ... [2024-12-02 10:21:33,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33" (1/1) ... [2024-12-02 10:21:33,464 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33" (1/1) ... [2024-12-02 10:21:33,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33" (1/1) ... [2024-12-02 10:21:33,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:21:33,468 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:21:33,468 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:21:33,468 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:21:33,469 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33" (1/1) ... [2024-12-02 10:21:33,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:21:33,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:21:33,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:21:33,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:21:33,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:21:33,534 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-02 10:21:33,534 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-02 10:21:33,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 10:21:33,534 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-12-02 10:21:33,535 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-12-02 10:21:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:21:33,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:21:33,598 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:21:33,599 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:21:48,127 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-12-02 10:21:48,128 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:21:48,139 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:21:48,139 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 10:21:48,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:21:48 BoogieIcfgContainer [2024-12-02 10:21:48,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:21:48,142 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:21:48,143 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:21:48,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:21:48,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:21:33" (1/3) ... [2024-12-02 10:21:48,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a9549e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:21:48, skipping insertion in model container [2024-12-02 10:21:48,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:21:33" (2/3) ... [2024-12-02 10:21:48,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a9549e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:21:48, skipping insertion in model container [2024-12-02 10:21:48,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:21:48" (3/3) ... [2024-12-02 10:21:48,151 INFO L128 eAbstractionObserver]: Analyzing ICFG newton_3_8.i [2024-12-02 10:21:48,168 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:21:48,170 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG newton_3_8.i that has 3 procedures, 26 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 10:21:48,217 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:21:48,228 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@24b47ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:21:48,228 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:21:48,232 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) [2024-12-02 10:21:48,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-02 10:21:48,245 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:48,245 INFO L218 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] [2024-12-02 10:21:48,245 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:48,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:48,250 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2024-12-02 10:21:48,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:21:48,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155293170] [2024-12-02 10:21:48,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:48,259 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 [2024-12-02 10:21:48,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:21:48,261 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:21:48,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:21:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:51,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 10:21:51,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:21:51,547 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 10:21:51,548 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:21:51,548 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:21:51,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155293170] [2024-12-02 10:21:51,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155293170] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:51,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:51,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:21:51,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689610655] [2024-12-02 10:21:51,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:51,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 10:21:51,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:21:51,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 10:21:51,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:21:51,573 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) [2024-12-02 10:21:51,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:51,591 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2024-12-02 10:21:51,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 10:21:51,593 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 [2024-12-02 10:21:51,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:51,598 INFO L225 Difference]: With dead ends: 49 [2024-12-02 10:21:51,598 INFO L226 Difference]: Without dead ends: 22 [2024-12-02 10:21:51,601 INFO L434 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 [2024-12-02 10:21:51,603 INFO L435 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 [2024-12-02 10:21:51,603 INFO L436 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] [2024-12-02 10:21:51,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-12-02 10:21:51,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-12-02 10:21:51,629 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) [2024-12-02 10:21:51,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-12-02 10:21:51,634 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2024-12-02 10:21:51,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:51,634 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-12-02 10:21:51,635 INFO L472 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) [2024-12-02 10:21:51,635 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-12-02 10:21:51,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-02 10:21:51,636 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:51,636 INFO L218 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] [2024-12-02 10:21:51,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:21:51,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:21:51,837 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:51,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:51,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2024-12-02 10:21:51,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:21:51,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976934804] [2024-12-02 10:21:51,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:51,839 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 [2024-12-02 10:21:51,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:21:51,841 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 10:21:51,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:26:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:26:54,059 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:27:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:27:30,922 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-02 10:27:30,922 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 10:27:30,923 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 10:27:31,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:27:31,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:27:31,127 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 10:27:31,149 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 10:27:31,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:27:31 BoogieIcfgContainer [2024-12-02 10:27:31,152 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 10:27:31,153 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 10:27:31,153 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 10:27:31,153 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 10:27:31,153 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:21:48" (3/4) ... [2024-12-02 10:27:31,154 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-02 10:27:31,185 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 17. [2024-12-02 10:27:31,228 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 10:27:31,228 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 10:27:31,229 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 10:27:31,229 INFO L158 Benchmark]: Toolchain (without parser) took 358076.24ms. Allocated memory is still 92.3MB. Free memory was 69.5MB in the beginning and 43.3MB in the end (delta: 26.2MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2024-12-02 10:27:31,229 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:27:31,230 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.67ms. Allocated memory is still 92.3MB. Free memory was 69.3MB in the beginning and 57.5MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:27:31,230 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.54ms. Allocated memory is still 92.3MB. Free memory was 57.5MB in the beginning and 56.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:27:31,230 INFO L158 Benchmark]: Boogie Preprocessor took 37.27ms. Allocated memory is still 92.3MB. Free memory was 56.3MB in the beginning and 54.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:27:31,231 INFO L158 Benchmark]: RCFGBuilder took 14671.46ms. Allocated memory is still 92.3MB. Free memory was 54.6MB in the beginning and 44.7MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:27:31,231 INFO L158 Benchmark]: TraceAbstraction took 343009.64ms. Allocated memory is still 92.3MB. Free memory was 44.2MB in the beginning and 48.4MB in the end (delta: -4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:27:31,231 INFO L158 Benchmark]: Witness Printer took 75.94ms. Allocated memory is still 92.3MB. Free memory was 48.1MB in the beginning and 43.3MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:27:31,233 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.67ms. Allocated memory is still 92.3MB. Free memory was 69.3MB in the beginning and 57.5MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.54ms. Allocated memory is still 92.3MB. Free memory was 57.5MB in the beginning and 56.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.27ms. Allocated memory is still 92.3MB. Free memory was 56.3MB in the beginning and 54.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 14671.46ms. Allocated memory is still 92.3MB. Free memory was 54.6MB in the beginning and 44.7MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 343009.64ms. Allocated memory is still 92.3MB. Free memory was 44.2MB in the beginning and 48.4MB in the end (delta: -4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 75.94ms. Allocated memory is still 92.3MB. Free memory was 48.1MB in the beginning and 43.3MB in the end (delta: 4.8MB). 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 - 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 > -2.0f && IN < 2.0f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L42] CALL, EXPR f(IN) VAL [\old(x)=-1.36649489402771] [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)=-1.36649489402771, \result=-0.9826886057853699] [L42] RET, EXPR f(IN) VAL [IN=-1.36649489402771] [L42] CALL, EXPR fp(IN) VAL [\old(x)=-1.36649489402771] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.36649489402771, \result=0.22067394852638245] [L42] RET, EXPR fp(IN) VAL [IN=-1.36649489402771] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=3.086629629135132] [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)=3.086629629135132, \result=1.0498019456863403] [L44] RET, EXPR f(x) VAL [x=3.086629629135132] [L44] CALL, EXPR fp(x) VAL [\old(x)=3.086629629135132] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=3.086629629135132, \result=1.2194924354553223] [L44] RET, EXPR fp(x) VAL [x=3.086629629135132] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=2.225778102874756] [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)=2.225778102874756, \result=0.8969178199768066] [L46] RET, EXPR f(x) VAL [x=2.225778102874756] [L46] CALL, EXPR fp(x) VAL [\old(x)=2.225778102874756] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=2.225778102874756, \result=-0.28554707765579224] [L46] RET, EXPR fp(x) VAL [x=2.225778102874756] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) [L51] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 342.9s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 305.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 62 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-12-02 10:27:31,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1168057-fe90-46d5-8455-e05ff01c11d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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