./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c --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_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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 8967790177fc14e8157cff1ce1fb723d3ab55513216099f6dbb82db8bc4d5837 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:08:48,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:08:48,544 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:08:48,548 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:08:48,548 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:08:48,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:08:48,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:08:48,574 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:08:48,575 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:08:48,575 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:08:48,575 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:08:48,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:08:48,576 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:08:48,576 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:08:48,576 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:08:48,576 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:08:48,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:08:48,576 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:08:48,576 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:08:48,577 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:08:48,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:08:48,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:08:48,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:08:48,577 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:08:48,577 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:08:48,577 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:08:48,577 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:08:48,577 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:08:48,578 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:08:48,578 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:08:48,578 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:08:48,578 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:08:48,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:08:48,578 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:08:48,578 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:08:48,578 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:08:48,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:08:48,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:08:48,579 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:08:48,579 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:08:48,579 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:08:48,579 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:08:48,579 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:08:48,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:08:48,580 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:08:48,580 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:08:48,580 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:08:48,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:08:48,580 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_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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 -> 8967790177fc14e8157cff1ce1fb723d3ab55513216099f6dbb82db8bc4d5837 [2024-12-02 13:08:48,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:08:48,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:08:48,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:08:48,839 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:08:48,839 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:08:48,840 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c [2024-12-02 13:08:52,041 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/data/78a6b42ea/9f52eb2a0968406fb4c49984e5f6bf49/FLAG0b15177a4 [2024-12-02 13:08:52,273 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:08:52,274 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c [2024-12-02 13:08:52,283 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/data/78a6b42ea/9f52eb2a0968406fb4c49984e5f6bf49/FLAG0b15177a4 [2024-12-02 13:08:52,302 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/data/78a6b42ea/9f52eb2a0968406fb4c49984e5f6bf49 [2024-12-02 13:08:52,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:08:52,307 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:08:52,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:08:52,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:08:52,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:08:52,315 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:08:52" (1/1) ... [2024-12-02 13:08:52,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11ac8c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52, skipping insertion in model container [2024-12-02 13:08:52,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:08:52" (1/1) ... [2024-12-02 13:08:52,334 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:08:52,511 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_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c[570,583] [2024-12-02 13:08:52,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:08:52,552 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:08:52,565 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_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c[570,583] [2024-12-02 13:08:52,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:08:52,595 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:08:52,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52 WrapperNode [2024-12-02 13:08:52,596 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:08:52,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:08:52,597 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:08:52,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:08:52,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52" (1/1) ... [2024-12-02 13:08:52,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52" (1/1) ... [2024-12-02 13:08:52,635 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-12-02 13:08:52,635 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:08:52,636 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:08:52,636 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:08:52,636 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:08:52,646 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52" (1/1) ... [2024-12-02 13:08:52,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52" (1/1) ... [2024-12-02 13:08:52,648 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52" (1/1) ... [2024-12-02 13:08:52,661 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 13:08:52,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52" (1/1) ... [2024-12-02 13:08:52,662 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52" (1/1) ... [2024-12-02 13:08:52,667 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52" (1/1) ... [2024-12-02 13:08:52,668 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52" (1/1) ... [2024-12-02 13:08:52,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52" (1/1) ... [2024-12-02 13:08:52,673 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52" (1/1) ... [2024-12-02 13:08:52,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52" (1/1) ... [2024-12-02 13:08:52,676 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:08:52,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:08:52,677 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:08:52,677 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:08:52,678 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52" (1/1) ... [2024-12-02 13:08:52,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:08:52,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:08:52,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:08:52,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:08:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:08:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:08:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:08:52,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:08:52,820 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:08:52,823 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:08:52,968 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-02 13:08:52,968 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:08:52,978 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:08:52,979 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:08:52,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:08:52 BoogieIcfgContainer [2024-12-02 13:08:52,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:08:52,982 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:08:52,982 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:08:52,987 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:08:52,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:08:52" (1/3) ... [2024-12-02 13:08:52,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@215733b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:08:52, skipping insertion in model container [2024-12-02 13:08:52,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:52" (2/3) ... [2024-12-02 13:08:52,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@215733b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:08:52, skipping insertion in model container [2024-12-02 13:08:52,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:08:52" (3/3) ... [2024-12-02 13:08:52,990 INFO L128 eAbstractionObserver]: Analyzing ICFG sqrt_biNewton_pseudoconstant.c [2024-12-02 13:08:53,004 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:08:53,005 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sqrt_biNewton_pseudoconstant.c that has 1 procedures, 20 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-12-02 13:08:53,057 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:08:53,069 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;@75f1f75f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:08:53,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:08:53,073 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:08:53,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-02 13:08:53,078 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:53,078 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:53,079 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:53,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:53,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1412609145, now seen corresponding path program 1 times [2024-12-02 13:08:53,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:53,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315838144] [2024-12-02 13:08:53,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:53,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:08:53,184 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:08:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:08:53,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 13:08:53,220 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 13:08:53,222 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 13:08:53,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:08:53,228 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-02 13:08:53,249 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:08:53,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:08:53 BoogieIcfgContainer [2024-12-02 13:08:53,252 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:08:53,253 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:08:53,253 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:08:53,253 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:08:53,254 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:08:52" (3/4) ... [2024-12-02 13:08:53,256 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 13:08:53,257 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:08:53,258 INFO L158 Benchmark]: Toolchain (without parser) took 951.44ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 77.0MB in the end (delta: 39.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 13:08:53,259 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:08:53,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.66ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 105.0MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:08:53,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.41ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 103.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:08:53,260 INFO L158 Benchmark]: Boogie Preprocessor took 39.82ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 102.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:08:53,260 INFO L158 Benchmark]: RCFGBuilder took 302.84ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 91.5MB in the end (delta: 10.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:08:53,261 INFO L158 Benchmark]: TraceAbstraction took 270.29ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 77.2MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:08:53,261 INFO L158 Benchmark]: Witness Printer took 4.38ms. Allocated memory is still 142.6MB. Free memory was 77.2MB in the beginning and 77.0MB in the end (delta: 259.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:08:53,263 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 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.66ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 105.0MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.41ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 103.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.82ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 102.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 302.84ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 91.5MB in the end (delta: 10.6MB). There was no memory consumed. Max. memory is 16.1GB. * TraceAbstraction took 270.29ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 77.2MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.38ms. Allocated memory is still 142.6MB. Free memory was 77.2MB in the beginning and 77.0MB in the end (delta: 259.2kB). 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: 13]: 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 someBinaryArithmeticDOUBLEoperation at line 38, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23, overapproximation of someUnaryDOUBLEoperation at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 26, overapproximation of someBinaryDOUBLEComparisonOperation at line 53, overapproximation of someBinaryDOUBLEComparisonOperation at line 49, overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someBinaryDOUBLEComparisonOperation at line 21. Possible FailurePath: [L15] double _EPS = 1e-6; VAL [_EPS=1/1000000] [L43] double d, dd, r; [L44] double epsilon = 1e-8; [L46] d = 1. VAL [_EPS=1/1000000] [L46] COND TRUE d <= 20. VAL [_EPS=1/1000000] [L48] dd = __VERIFIER_nondet_double() [L49] CALL assume_abort_if_not(dd >= d-epsilon && dd <= d+epsilon) [L11] COND FALSE !(!cond) VAL [_EPS=1/1000000] [L49] RET assume_abort_if_not(dd >= d-epsilon && dd <= d+epsilon) [L51] CALL, EXPR SqrtR(dd) [L19] double xn, xnp1, residu, lsup, linf; [L20] int i, cond; VAL [_EPS=1/1000000] [L21] COND TRUE Input <= 1.0 [L21] xn = 1.0 VAL [_EPS=1/1000000, xn=1] [L22] xnp1 = xn [L23] residu = 2.0*_EPS*(xn+xnp1) [L24] lsup = _EPS * (xn+xnp1) [L25] linf = -lsup [L26] cond = ((residu > lsup) || (residu < linf)) [L27] i = 0 VAL [_EPS=1/1000000, cond=0, i=0] [L28] COND FALSE !(\read(cond)) VAL [_EPS=1/1000000, i=0] [L38] return 1.0 / xnp1; VAL [_EPS=1/1000000, i=0] [L51] RET, EXPR SqrtR(dd) [L51] r = SqrtR(dd) [L53] CALL __VERIFIER_assert(r >= 0.9 && r <= 5.) [L13] COND TRUE !(cond) VAL [_EPS=1/1000000] [L13] reach_error() VAL [_EPS=1/1000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 13:08:53,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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 8967790177fc14e8157cff1ce1fb723d3ab55513216099f6dbb82db8bc4d5837 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:08:55,795 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:08:55,910 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 13:08:55,918 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:08:55,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:08:55,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:08:55,949 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:08:55,949 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:08:55,949 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:08:55,949 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:08:55,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:08:55,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:08:55,950 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:08:55,950 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:08:55,950 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:08:55,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:08:55,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:08:55,951 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:08:55,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:08:55,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:08:55,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:08:55,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:08:55,951 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:08:55,951 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 13:08:55,951 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 13:08:55,951 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 13:08:55,952 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:08:55,952 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:08:55,952 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:08:55,952 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:08:55,952 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:08:55,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:08:55,952 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:08:55,952 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:08:55,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:08:55,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:08:55,953 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:08:55,953 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:08:55,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:08:55,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:08:55,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:08:55,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:08:55,953 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:08:55,953 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:08:55,953 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 13:08:55,953 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 13:08:55,954 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:08:55,954 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:08:55,954 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:08:55,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:08:55,954 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_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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 -> 8967790177fc14e8157cff1ce1fb723d3ab55513216099f6dbb82db8bc4d5837 [2024-12-02 13:08:56,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:08:56,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:08:56,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:08:56,283 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:08:56,283 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:08:56,285 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c [2024-12-02 13:08:59,670 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/data/e3d044a25/c8486a9b9b7b4b47aa82c9f5d39a391d/FLAG2af8c4a4d [2024-12-02 13:08:59,917 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:08:59,918 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c [2024-12-02 13:08:59,928 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/data/e3d044a25/c8486a9b9b7b4b47aa82c9f5d39a391d/FLAG2af8c4a4d [2024-12-02 13:08:59,948 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/data/e3d044a25/c8486a9b9b7b4b47aa82c9f5d39a391d [2024-12-02 13:08:59,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:08:59,952 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:08:59,954 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:08:59,954 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:08:59,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:08:59,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:08:59" (1/1) ... [2024-12-02 13:08:59,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f8456e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:59, skipping insertion in model container [2024-12-02 13:08:59,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:08:59" (1/1) ... [2024-12-02 13:08:59,979 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:09:00,160 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_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c[570,583] [2024-12-02 13:09:00,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:09:00,207 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:09:00,221 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_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c[570,583] [2024-12-02 13:09:00,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:09:00,252 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:09:00,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:00 WrapperNode [2024-12-02 13:09:00,253 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:09:00,254 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:09:00,254 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:09:00,254 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:09:00,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:00" (1/1) ... [2024-12-02 13:09:00,273 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:00" (1/1) ... [2024-12-02 13:09:00,293 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2024-12-02 13:09:00,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:09:00,294 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:09:00,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:09:00,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:09:00,305 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:00" (1/1) ... [2024-12-02 13:09:00,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:00" (1/1) ... [2024-12-02 13:09:00,308 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:00" (1/1) ... [2024-12-02 13:09:00,322 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 13:09:00,322 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:00" (1/1) ... [2024-12-02 13:09:00,322 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:00" (1/1) ... [2024-12-02 13:09:00,329 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:00" (1/1) ... [2024-12-02 13:09:00,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:00" (1/1) ... [2024-12-02 13:09:00,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:00" (1/1) ... [2024-12-02 13:09:00,336 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:00" (1/1) ... [2024-12-02 13:09:00,337 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:00" (1/1) ... [2024-12-02 13:09:00,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:09:00,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:09:00,340 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:09:00,340 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:09:00,341 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:00" (1/1) ... [2024-12-02 13:09:00,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:09:00,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:09:00,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:09:00,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:09:00,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:09:00,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 13:09:00,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:09:00,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:09:00,484 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:09:00,487 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:09:18,275 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-02 13:09:18,275 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:09:18,284 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:09:18,284 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:09:18,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:09:18 BoogieIcfgContainer [2024-12-02 13:09:18,285 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:09:18,287 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:09:18,287 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:09:18,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:09:18,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:08:59" (1/3) ... [2024-12-02 13:09:18,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9dac50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:09:18, skipping insertion in model container [2024-12-02 13:09:18,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:00" (2/3) ... [2024-12-02 13:09:18,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9dac50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:09:18, skipping insertion in model container [2024-12-02 13:09:18,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:09:18" (3/3) ... [2024-12-02 13:09:18,294 INFO L128 eAbstractionObserver]: Analyzing ICFG sqrt_biNewton_pseudoconstant.c [2024-12-02 13:09:18,307 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:09:18,308 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sqrt_biNewton_pseudoconstant.c that has 1 procedures, 20 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-12-02 13:09:18,365 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:09:18,378 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;@37b37c72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:09:18,378 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:09:18,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:09:18,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-02 13:09:18,388 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:18,389 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:09:18,389 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:18,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:18,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1412609145, now seen corresponding path program 1 times [2024-12-02 13:09:18,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:09:18,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824765264] [2024-12-02 13:09:18,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:18,403 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 13:09:18,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:09:18,405 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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 13:09:18,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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 13:09:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:19,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 13:09:19,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:09:21,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:09:21,371 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:09:21,372 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:09:21,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824765264] [2024-12-02 13:09:21,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824765264] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:21,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:21,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:09:21,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910265361] [2024-12-02 13:09:21,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:21,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:09:21,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:09:21,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:09:21,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:09:21,412 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:09:26,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:09:30,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:09:34,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:09:36,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:09:40,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:09:44,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:09:49,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.94s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:09:53,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:09:57,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:10:01,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:10:05,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:10:09,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:10:13,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:10:16,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:10:17,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:10:17,244 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions. [2024-12-02 13:10:17,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:10:17,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-12-02 13:10:17,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:10:17,258 INFO L225 Difference]: With dead ends: 41 [2024-12-02 13:10:17,258 INFO L226 Difference]: Without dead ends: 19 [2024-12-02 13:10:17,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:10:17,263 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:10:17,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 27 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 11 Unknown, 0 Unchecked, 55.4s Time] [2024-12-02 13:10:17,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-12-02 13:10:17,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2024-12-02 13:10:17,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:10:17,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2024-12-02 13:10:17,289 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 13 [2024-12-02 13:10:17,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:10:17,290 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-12-02 13:10:17,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:10:17,290 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-12-02 13:10:17,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-02 13:10:17,291 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:10:17,291 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:10:17,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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 13:10:17,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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 13:10:17,492 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:10:17,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:10:17,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1107350789, now seen corresponding path program 1 times [2024-12-02 13:10:17,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:10:17,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995222829] [2024-12-02 13:10:17,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:10:17,493 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 13:10:17,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:10:17,495 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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 13:10:17,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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 13:10:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:10:20,490 WARN L254 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 13:10:20,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:10:33,244 WARN L286 SmtUtils]: Spent 6.64s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:10:39,348 WARN L286 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:11:29,677 WARN L286 SmtUtils]: Spent 19.25s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 13:11:37,921 WARN L286 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:11:49,783 WARN L286 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:11:59,847 WARN L286 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:12:08,175 WARN L286 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:12:16,471 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:12:24,760 WARN L286 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:12:33,170 WARN L286 SmtUtils]: Spent 8.36s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:12:41,500 WARN L286 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:12:49,862 WARN L286 SmtUtils]: Spent 8.36s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:12:58,386 WARN L286 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:13:06,720 WARN L286 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:13:11,067 WARN L851 $PredicateComparison]: unable to prove that (and (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0)))) (let ((.cse6 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse3)) (.cse5 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0))))) (or (and (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_SqrtR_~linf~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse4 (fp.add c_currentRoundingMode .cse1 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|))) (let ((.cse2 (fp.mul c_currentRoundingMode .cse6 .cse4))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (= .cse1 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (not (fp.gt .cse2 (fp.mul c_currentRoundingMode .cse3 .cse4))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse5) (not (fp.lt .cse2 |v_ULTIMATE.start_SqrtR_~linf~0#1_11|))))))) (= |c_ULTIMATE.start_SqrtR_~cond~0#1| (_ bv0 32))) (and (or (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse7 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (= .cse7 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (exists ((|v_ULTIMATE.start_SqrtR_~linf~0#1_11| (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode .cse6 (fp.add c_currentRoundingMode .cse7 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|)) |v_ULTIMATE.start_SqrtR_~linf~0#1_11|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse5)))) (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse8 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (= .cse8 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (let ((.cse9 (fp.add c_currentRoundingMode .cse8 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|))) (fp.gt (fp.mul c_currentRoundingMode .cse6 .cse9) (fp.mul c_currentRoundingMode .cse3 .cse9))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse5))))) (= |c_ULTIMATE.start_SqrtR_~cond~0#1| (_ bv1 32)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-12-02 13:13:19,464 WARN L286 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:13:27,782 WARN L286 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:13:36,111 WARN L286 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:13:44,475 WARN L286 SmtUtils]: Spent 8.36s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:13:52,928 WARN L286 SmtUtils]: Spent 8.45s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:13:57,144 WARN L851 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_SqrtR_~linf~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse1 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse4 (fp.add c_currentRoundingMode .cse1 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|))) (let ((.cse2 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse3) .cse4))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (= .cse1 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (not (fp.gt .cse2 (fp.mul c_currentRoundingMode .cse3 .cse4))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (not (fp.lt .cse2 |v_ULTIMATE.start_SqrtR_~linf~0#1_11|)))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-12-02 13:14:05,976 WARN L286 SmtUtils]: Spent 8.78s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:14:14,691 WARN L286 SmtUtils]: Spent 8.71s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:14:23,500 WARN L286 SmtUtils]: Spent 8.81s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:14:32,433 WARN L286 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:14:41,163 WARN L286 SmtUtils]: Spent 8.73s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:14:45,451 WARN L851 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_SqrtR_~linf~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse2 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse4 (fp.add c_currentRoundingMode .cse2 .cse2))) (let ((.cse1 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse3) .cse4))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (not (fp.lt .cse1 |v_ULTIMATE.start_SqrtR_~linf~0#1_11|)) (= (fp.div c_currentRoundingMode .cse0 .cse2) |c_ULTIMATE.start_SqrtR_#res#1|) (not (fp.gt .cse1 (fp.mul c_currentRoundingMode .cse3 .cse4))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-12-02 13:14:49,612 WARN L873 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_SqrtR_~linf~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse2 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse4 (fp.add c_currentRoundingMode .cse2 .cse2))) (let ((.cse1 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse3) .cse4))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (not (fp.lt .cse1 |v_ULTIMATE.start_SqrtR_~linf~0#1_11|)) (= (fp.div c_currentRoundingMode .cse0 .cse2) |c_ULTIMATE.start_SqrtR_#res#1|) (not (fp.gt .cse1 (fp.mul c_currentRoundingMode .cse3 .cse4))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2024-12-02 13:15:02,643 WARN L286 SmtUtils]: Spent 8.79s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:15:11,434 WARN L286 SmtUtils]: Spent 8.79s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:15:20,223 WARN L286 SmtUtils]: Spent 8.79s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:15:29,037 WARN L286 SmtUtils]: Spent 8.81s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:15:37,821 WARN L286 SmtUtils]: Spent 8.78s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:15:46,619 WARN L286 SmtUtils]: Spent 8.80s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:16:04,060 WARN L286 SmtUtils]: Spent 8.80s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:16:12,851 WARN L286 SmtUtils]: Spent 8.79s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:16:21,642 WARN L286 SmtUtils]: Spent 8.79s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:16:30,318 WARN L286 SmtUtils]: Spent 8.68s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:16:39,143 WARN L286 SmtUtils]: Spent 8.82s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:16:52,187 WARN L286 SmtUtils]: Spent 8.80s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:17:00,853 WARN L286 SmtUtils]: Spent 8.67s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:17:09,644 WARN L286 SmtUtils]: Spent 8.79s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:17:18,462 WARN L286 SmtUtils]: Spent 8.82s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:17:27,296 WARN L286 SmtUtils]: Spent 8.83s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:17:32,108 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0))) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) (.cse5 (fp.add roundNearestTiesToEven .cse6 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (.cse9 (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse1))) (or (and (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_SqrtR_~linf~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse8 (fp.div roundNearestTiesToEven .cse6 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse8 .cse8))) (let ((.cse0 (fp.mul roundNearestTiesToEven .cse9 .cse2)) (.cse3 (fp.div roundNearestTiesToEven .cse6 .cse8))) (and (not (fp.gt .cse0 (fp.mul roundNearestTiesToEven .cse1 .cse2))) (fp.leq .cse3 .cse4) (not (fp.lt .cse0 |v_ULTIMATE.start_SqrtR_~linf~0#1_11|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse5) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse6)) (fp.geq .cse3 .cse7)))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (or (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_SqrtR_~linf~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse12 (fp.div roundNearestTiesToEven .cse6 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse11 (fp.add roundNearestTiesToEven .cse12 .cse12))) (let ((.cse10 (fp.mul roundNearestTiesToEven .cse9 .cse11))) (and (not (fp.gt .cse10 (fp.mul roundNearestTiesToEven .cse1 .cse11))) (not (fp.lt .cse10 |v_ULTIMATE.start_SqrtR_~linf~0#1_11|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse5) (not (fp.geq (fp.div roundNearestTiesToEven .cse6 .cse12) .cse7)) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse6))))))) (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_SqrtR_~linf~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse15 (fp.div roundNearestTiesToEven .cse6 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse14 (fp.add roundNearestTiesToEven .cse15 .cse15))) (let ((.cse13 (fp.mul roundNearestTiesToEven .cse9 .cse14))) (and (not (fp.gt .cse13 (fp.mul roundNearestTiesToEven .cse1 .cse14))) (not (fp.leq (fp.div roundNearestTiesToEven .cse6 .cse15) .cse4)) (not (fp.lt .cse13 |v_ULTIMATE.start_SqrtR_~linf~0#1_11|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse5) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse6)))))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)))))) is different from false [2024-12-02 13:17:45,249 WARN L286 SmtUtils]: Spent 8.83s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:17:54,076 WARN L286 SmtUtils]: Spent 8.83s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:18:02,899 WARN L286 SmtUtils]: Spent 8.82s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:18:11,592 WARN L286 SmtUtils]: Spent 8.69s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:18:20,430 WARN L286 SmtUtils]: Spent 8.84s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:18:33,496 WARN L286 SmtUtils]: Spent 8.84s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:18:42,207 WARN L286 SmtUtils]: Spent 8.71s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:18:51,059 WARN L286 SmtUtils]: Spent 8.85s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:18:59,918 WARN L286 SmtUtils]: Spent 8.86s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:19:08,768 WARN L286 SmtUtils]: Spent 8.85s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:19:13,174 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse3 (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (.cse6 (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse1))) (or (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_SqrtR_~linf~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse4 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse5 .cse5))) (let ((.cse0 (fp.mul roundNearestTiesToEven .cse6 .cse2))) (and (not (fp.gt .cse0 (fp.mul roundNearestTiesToEven .cse1 .cse2))) (not (fp.lt .cse0 |v_ULTIMATE.start_SqrtR_~linf~0#1_11|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3) (not (fp.geq (fp.div roundNearestTiesToEven .cse4 .cse5) ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0)))) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse4))))))) (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_SqrtR_~linf~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse9 (fp.div roundNearestTiesToEven .cse4 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse8 (fp.add roundNearestTiesToEven .cse9 .cse9))) (let ((.cse7 (fp.mul roundNearestTiesToEven .cse6 .cse8))) (and (not (fp.gt .cse7 (fp.mul roundNearestTiesToEven .cse1 .cse8))) (not (fp.leq (fp.div roundNearestTiesToEven .cse4 .cse9) ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (not (fp.lt .cse7 |v_ULTIMATE.start_SqrtR_~linf~0#1_11|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse4)))))))))) is different from false [2024-12-02 13:19:17,371 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse3 (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (.cse6 (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse1))) (or (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_SqrtR_~linf~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse4 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse5 .cse5))) (let ((.cse0 (fp.mul roundNearestTiesToEven .cse6 .cse2))) (and (not (fp.gt .cse0 (fp.mul roundNearestTiesToEven .cse1 .cse2))) (not (fp.lt .cse0 |v_ULTIMATE.start_SqrtR_~linf~0#1_11|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3) (not (fp.geq (fp.div roundNearestTiesToEven .cse4 .cse5) ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0)))) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse4))))))) (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_SqrtR_~linf~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse9 (fp.div roundNearestTiesToEven .cse4 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse8 (fp.add roundNearestTiesToEven .cse9 .cse9))) (let ((.cse7 (fp.mul roundNearestTiesToEven .cse6 .cse8))) (and (not (fp.gt .cse7 (fp.mul roundNearestTiesToEven .cse1 .cse8))) (not (fp.leq (fp.div roundNearestTiesToEven .cse4 .cse9) ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (not (fp.lt .cse7 |v_ULTIMATE.start_SqrtR_~linf~0#1_11|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse4)))))))))) is different from true [2024-12-02 13:19:17,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:19:17,372 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:19:17,372 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:19:17,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995222829] [2024-12-02 13:19:17,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995222829] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:19:17,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:19:17,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 13:19:17,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344940613] [2024-12-02 13:19:17,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:19:17,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 13:19:17,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:19:17,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 13:19:17,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=38, Unknown=10, NotChecked=80, Total=156 [2024-12-02 13:19:17,377 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:19:19,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:19:23,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:19:25,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:19:30,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:19:41,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:19:52,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:19:55,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:20:05,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:20:06,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:20:10,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:20:14,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:20:19,331 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (let ((.cse2 (fp.add c_currentRoundingMode .cse1 .cse0))) (and (= .cse0 |c_ULTIMATE.start_main_~epsilon~0#1|) (= ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0)) c_~_EPS~0) (fp.geq |c_ULTIMATE.start_SqrtR_~Input#1| (fp.sub c_currentRoundingMode .cse1 .cse0)) (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse1)) (= |c_ULTIMATE.start_SqrtR_~xn~0#1| (fp.div c_currentRoundingMode .cse1 |ULTIMATE.start_SqrtR_~Input#1|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse2))) (= .cse1 |c_ULTIMATE.start_main_~d~0#1|) (= c_currentRoundingMode roundNearestTiesToEven) (fp.leq |c_ULTIMATE.start_SqrtR_~Input#1| .cse2)))) is different from false [2024-12-02 13:20:23,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:20:27,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:20:31,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:20:35,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:20:41,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:20:45,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:20:49,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:20:53,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:20:57,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:21:01,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:21:05,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:21:09,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:21:13,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:21:17,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:21:21,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:21:25,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:21:26,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:21:28,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:21:30,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:21:32,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:21:36,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.74s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:21:40,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:21:44,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:21:48,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:21:52,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:21:56,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:22:00,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:22:05,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:22:08,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:22:09,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:22:14,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:22:18,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:22:20,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:22:24,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:22:27,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.85s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:22:32,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:22:36,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:22:40,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:22:44,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:22:48,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:22:52,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:22:56,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:23:01,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:23:02,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 13:23:02,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:23:02,968 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2024-12-02 13:23:02,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:23:02,969 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-12-02 13:23:02,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:23:02,970 INFO L225 Difference]: With dead ends: 56 [2024-12-02 13:23:02,970 INFO L226 Difference]: Without dead ends: 54 [2024-12-02 13:23:02,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 109.2s TimeCoverageRelationStatistics Valid=45, Invalid=77, Unknown=12, NotChecked=138, Total=272 [2024-12-02 13:23:02,972 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 48 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 35 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 194.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 35 IncrementalHoareTripleChecker+Unknown, 306 IncrementalHoareTripleChecker+Unchecked, 196.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:23:02,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 67 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 35 Unknown, 306 Unchecked, 196.7s Time] [2024-12-02 13:23:02,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-12-02 13:23:02,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 28. [2024-12-02 13:23:02,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:23:02,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2024-12-02 13:23:02,980 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 13 [2024-12-02 13:23:02,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:23:02,980 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2024-12-02 13:23:02,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:23:02,980 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-12-02 13:23:02,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-02 13:23:02,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:23:02,981 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:23:03,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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 13:23:03,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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 13:23:03,182 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:23:03,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:23:03,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1589341643, now seen corresponding path program 1 times [2024-12-02 13:23:03,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:23:03,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213604447] [2024-12-02 13:23:03,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:23:03,183 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 13:23:03,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:23:03,184 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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 13:23:03,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f06214e-4c5b-47f0-a6a4-388bc82ca5c4/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 (4)] Waiting until timeout for monitored process [2024-12-02 13:23:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:23:24,742 WARN L254 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 13:23:24,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:23:44,258 WARN L286 SmtUtils]: Spent 8.84s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:23:53,126 WARN L286 SmtUtils]: Spent 8.87s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:24:01,769 WARN L286 SmtUtils]: Spent 8.64s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:24:09,953 WARN L286 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)