./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_tight.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX --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 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 18:05:13,716 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 18:05:13,816 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 18:05:13,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 18:05:13,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 18:05:13,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 18:05:13,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 18:05:13,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 18:05:13,846 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 18:05:13,847 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 18:05:13,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 18:05:13,848 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 18:05:13,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 18:05:13,849 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 18:05:13,850 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 18:05:13,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 18:05:13,851 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 18:05:13,851 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 18:05:13,852 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 18:05:13,852 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 18:05:13,853 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 18:05:13,854 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 18:05:13,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 18:05:13,854 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 18:05:13,855 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 18:05:13,855 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 18:05:13,856 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 18:05:13,856 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 18:05:13,856 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 18:05:13,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 18:05:13,861 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 18:05:13,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 18:05:13,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:05:13,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 18:05:13,864 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 18:05:13,864 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 18:05:13,865 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 18:05:13,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 18:05:13,865 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 18:05:13,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 18:05:13,867 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 18:05:13,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 18:05:13,869 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4
[2024-11-08 18:05:14,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 18:05:14,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 18:05:14,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 18:05:14,182 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 18:05:14,184 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 18:05:14,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/float-benchs/zonotope_tight.c
Unable to find full path for "g++"
[2024-11-08 18:05:16,497 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 18:05:16,796 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 18:05:16,798 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/sv-benchmarks/c/float-benchs/zonotope_tight.c
[2024-11-08 18:05:16,809 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/data/ecd15cc69/f42973cbdeaa4665a7d88c1d2719093e/FLAG4b8d90366
[2024-11-08 18:05:16,838 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/data/ecd15cc69/f42973cbdeaa4665a7d88c1d2719093e
[2024-11-08 18:05:16,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 18:05:16,843 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 18:05:16,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 18:05:16,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 18:05:16,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 18:05:16,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:05:16" (1/1) ...
[2024-11-08 18:05:16,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@646cc0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:16, skipping insertion in model container
[2024-11-08 18:05:16,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:05:16" (1/1) ...
[2024-11-08 18:05:16,878 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 18:05:17,088 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_03846601-2324-42bd-afaa-c104cfd0052d/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590]
[2024-11-08 18:05:17,100 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:05:17,113 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 18:05:17,128 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_03846601-2324-42bd-afaa-c104cfd0052d/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590]
[2024-11-08 18:05:17,131 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:05:17,153 INFO L204 MainTranslator]: Completed translation
[2024-11-08 18:05:17,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:17 WrapperNode
[2024-11-08 18:05:17,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 18:05:17,156 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 18:05:17,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 18:05:17,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 18:05:17,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:17" (1/1) ...
[2024-11-08 18:05:17,174 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:17" (1/1) ...
[2024-11-08 18:05:17,198 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31
[2024-11-08 18:05:17,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 18:05:17,201 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 18:05:17,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 18:05:17,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 18:05:17,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:17" (1/1) ...
[2024-11-08 18:05:17,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:17" (1/1) ...
[2024-11-08 18:05:17,214 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:17" (1/1) ...
[2024-11-08 18:05:17,227 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].
[2024-11-08 18:05:17,228 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:17" (1/1) ...
[2024-11-08 18:05:17,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:17" (1/1) ...
[2024-11-08 18:05:17,232 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:17" (1/1) ...
[2024-11-08 18:05:17,235 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:17" (1/1) ...
[2024-11-08 18:05:17,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:17" (1/1) ...
[2024-11-08 18:05:17,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:17" (1/1) ...
[2024-11-08 18:05:17,242 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 18:05:17,243 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 18:05:17,243 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 18:05:17,244 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 18:05:17,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:17" (1/1) ...
[2024-11-08 18:05:17,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:05:17,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:05:17,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 18:05:17,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 18:05:17,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 18:05:17,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 18:05:17,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 18:05:17,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 18:05:17,392 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 18:05:17,394 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 18:05:17,514 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live.
[2024-11-08 18:05:17,514 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 18:05:17,529 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 18:05:17,529 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 18:05:17,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:05:17 BoogieIcfgContainer
[2024-11-08 18:05:17,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 18:05:17,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 18:05:17,534 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 18:05:17,539 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 18:05:17,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:05:16" (1/3) ...
[2024-11-08 18:05:17,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6829f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:05:17, skipping insertion in model container
[2024-11-08 18:05:17,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:17" (2/3) ...
[2024-11-08 18:05:17,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6829f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:05:17, skipping insertion in model container
[2024-11-08 18:05:17,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:05:17" (3/3) ...
[2024-11-08 18:05:17,545 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c
[2024-11-08 18:05:17,570 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 18:05:17,570 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 18:05:17,661 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 18:05:17,673 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;@104ccdd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 18:05:17,674 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 18:05:17,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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)
[2024-11-08 18:05:17,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 18:05:17,695 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:05:17,696 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:05:17,696 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:05:17,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:05:17,708 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times
[2024-11-08 18:05:17,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:05:17,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883925780]
[2024-11-08 18:05:17,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:05:17,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:05:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:17,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:05:17,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:05:17,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883925780]
[2024-11-08 18:05:17,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883925780] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:05:17,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:05:17,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:05:17,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393445547]
[2024-11-08 18:05:17,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:05:17,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 18:05:17,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:05:17,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 18:05:17,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 18:05:17,994 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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)
[2024-11-08 18:05:18,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:05:18,008 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions.
[2024-11-08 18:05:18,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 18:05:18,011 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8
[2024-11-08 18:05:18,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:05:18,019 INFO L225 Difference]: With dead ends: 23
[2024-11-08 18:05:18,019 INFO L226 Difference]: Without dead ends: 9
[2024-11-08 18:05:18,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 18:05:18,027 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 18:05:18,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:05:18,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2024-11-08 18:05:18,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2024-11-08 18:05:18,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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)
[2024-11-08 18:05:18,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2024-11-08 18:05:18,067 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8
[2024-11-08 18:05:18,068 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:05:18,068 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2024-11-08 18:05:18,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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)
[2024-11-08 18:05:18,069 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2024-11-08 18:05:18,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 18:05:18,069 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:05:18,070 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:05:18,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 18:05:18,070 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:05:18,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:05:18,071 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times
[2024-11-08 18:05:18,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:05:18,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481415907]
[2024-11-08 18:05:18,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:05:18,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:05:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:05:18,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:05:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:05:18,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 18:05:18,157 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 18:05:18,160 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-08 18:05:18,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 18:05:18,168 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-08 18:05:18,188 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 18:05:18,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:05:18 BoogieIcfgContainer
[2024-11-08 18:05:18,199 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 18:05:18,200 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 18:05:18,200 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 18:05:18,201 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 18:05:18,201 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:05:17" (3/4) ...
[2024-11-08 18:05:18,209 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-08 18:05:18,211 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 18:05:18,212 INFO L158 Benchmark]: Toolchain (without parser) took 1369.10ms. Allocated memory is still 169.9MB. Free memory was 139.5MB in the beginning and 89.6MB in the end (delta: 49.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB.
[2024-11-08 18:05:18,213 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 130.0MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 18:05:18,213 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.12ms. Allocated memory is still 169.9MB. Free memory was 139.2MB in the beginning and 127.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-08 18:05:18,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.04ms. Allocated memory is still 169.9MB. Free memory was 127.1MB in the beginning and 125.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:05:18,218 INFO L158 Benchmark]: Boogie Preprocessor took 41.14ms. Allocated memory is still 169.9MB. Free memory was 125.6MB in the beginning and 124.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 18:05:18,219 INFO L158 Benchmark]: RCFGBuilder took 287.21ms. Allocated memory is still 169.9MB. Free memory was 123.8MB in the beginning and 114.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-11-08 18:05:18,219 INFO L158 Benchmark]: TraceAbstraction took 665.32ms. Allocated memory is still 169.9MB. Free memory was 113.9MB in the beginning and 90.0MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-08 18:05:18,220 INFO L158 Benchmark]: Witness Printer took 11.33ms. Allocated memory is still 169.9MB. Free memory was 90.0MB in the beginning and 89.6MB in the end (delta: 324.6kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 18:05:18,226 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.37ms. Allocated memory is still 130.0MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 310.12ms. Allocated memory is still 169.9MB. Free memory was 139.2MB in the beginning and 127.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 44.04ms. Allocated memory is still 169.9MB. Free memory was 127.1MB in the beginning and 125.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 41.14ms. Allocated memory is still 169.9MB. Free memory was 125.6MB in the beginning and 124.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 287.21ms. Allocated memory is still 169.9MB. Free memory was 123.8MB in the beginning and 114.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 665.32ms. Allocated memory is still 169.9MB. Free memory was 113.9MB in the beginning and 90.0MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Witness Printer took 11.33ms. Allocated memory is still 169.9MB. Free memory was 90.0MB in the beginning and 89.6MB in the end (delta: 324.6kB). 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: 14]: 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 someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 24.
Possible FailurePath:
[L18] double x,y;
[L20] x = __VERIFIER_nondet_double()
[L21] CALL assume_abort_if_not(x >= 0. && x <= 10.)
[L12] COND FALSE !(!cond)
[L21] RET assume_abort_if_not(x >= 0. && x <= 10.)
[L23] y = x*x - x
[L24] COND TRUE y >= 0
[L24] y = x / 10.
[L27] CALL __VERIFIER_assert(y >= 0. && y <= 4.)
[L14] COND TRUE !(cond)
[L14] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-08 18:05:18,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX --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 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 18:05:20,936 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 18:05:21,044 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-08 18:05:21,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 18:05:21,053 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 18:05:21,094 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 18:05:21,095 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 18:05:21,095 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 18:05:21,096 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 18:05:21,097 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 18:05:21,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 18:05:21,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 18:05:21,099 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 18:05:21,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 18:05:21,102 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 18:05:21,103 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 18:05:21,104 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 18:05:21,104 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 18:05:21,105 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 18:05:21,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 18:05:21,109 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 18:05:21,110 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 18:05:21,110 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 18:05:21,111 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-08 18:05:21,111 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-08 18:05:21,111 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 18:05:21,112 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-08 18:05:21,112 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 18:05:21,112 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 18:05:21,114 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 18:05:21,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 18:05:21,115 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 18:05:21,115 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 18:05:21,116 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 18:05:21,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:05:21,117 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 18:05:21,117 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 18:05:21,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 18:05:21,119 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-08 18:05:21,119 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-08 18:05:21,119 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 18:05:21,132 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 18:05:21,133 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 18:05:21,133 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 18:05:21,134 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4
[2024-11-08 18:05:21,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 18:05:21,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 18:05:21,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 18:05:21,646 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 18:05:21,647 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 18:05:21,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/float-benchs/zonotope_tight.c
Unable to find full path for "g++"
[2024-11-08 18:05:23,814 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 18:05:24,065 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 18:05:24,066 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/sv-benchmarks/c/float-benchs/zonotope_tight.c
[2024-11-08 18:05:24,076 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/data/030609cf1/6f4c20848656406395bf34781e7ae70a/FLAGf4af42374
[2024-11-08 18:05:24,384 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/data/030609cf1/6f4c20848656406395bf34781e7ae70a
[2024-11-08 18:05:24,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 18:05:24,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 18:05:24,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 18:05:24,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 18:05:24,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 18:05:24,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:05:24" (1/1) ...
[2024-11-08 18:05:24,401 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f1722c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:24, skipping insertion in model container
[2024-11-08 18:05:24,402 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:05:24" (1/1) ...
[2024-11-08 18:05:24,427 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 18:05:24,695 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_03846601-2324-42bd-afaa-c104cfd0052d/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590]
[2024-11-08 18:05:24,709 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:05:24,732 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 18:05:24,750 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_03846601-2324-42bd-afaa-c104cfd0052d/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590]
[2024-11-08 18:05:24,757 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:05:24,782 INFO L204 MainTranslator]: Completed translation
[2024-11-08 18:05:24,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:24 WrapperNode
[2024-11-08 18:05:24,783 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 18:05:24,785 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 18:05:24,785 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 18:05:24,785 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 18:05:24,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:24" (1/1) ...
[2024-11-08 18:05:24,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:24" (1/1) ...
[2024-11-08 18:05:24,827 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 32
[2024-11-08 18:05:24,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 18:05:24,830 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 18:05:24,830 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 18:05:24,830 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 18:05:24,842 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:24" (1/1) ...
[2024-11-08 18:05:24,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:24" (1/1) ...
[2024-11-08 18:05:24,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:24" (1/1) ...
[2024-11-08 18:05:24,868 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].
[2024-11-08 18:05:24,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:24" (1/1) ...
[2024-11-08 18:05:24,868 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:24" (1/1) ...
[2024-11-08 18:05:24,878 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:24" (1/1) ...
[2024-11-08 18:05:24,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:24" (1/1) ...
[2024-11-08 18:05:24,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:24" (1/1) ...
[2024-11-08 18:05:24,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:24" (1/1) ...
[2024-11-08 18:05:24,896 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 18:05:24,897 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 18:05:24,897 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 18:05:24,897 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 18:05:24,898 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:24" (1/1) ...
[2024-11-08 18:05:24,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:05:24,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:05:24,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 18:05:24,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 18:05:24,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 18:05:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-08 18:05:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 18:05:24,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 18:05:25,100 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 18:05:25,115 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 18:05:31,121 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-08 18:05:31,121 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 18:05:31,137 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 18:05:31,137 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 18:05:31,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:05:31 BoogieIcfgContainer
[2024-11-08 18:05:31,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 18:05:31,144 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 18:05:31,145 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 18:05:31,149 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 18:05:31,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:05:24" (1/3) ...
[2024-11-08 18:05:31,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521f473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:05:31, skipping insertion in model container
[2024-11-08 18:05:31,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:24" (2/3) ...
[2024-11-08 18:05:31,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521f473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:05:31, skipping insertion in model container
[2024-11-08 18:05:31,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:05:31" (3/3) ...
[2024-11-08 18:05:31,153 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c
[2024-11-08 18:05:31,173 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 18:05:31,173 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 18:05:31,253 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 18:05:31,261 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;@12007998, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 18:05:31,261 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 18:05:31,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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)
[2024-11-08 18:05:31,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 18:05:31,274 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:05:31,275 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:05:31,276 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:05:31,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:05:31,286 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times
[2024-11-08 18:05:31,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:05:31,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584520376]
[2024-11-08 18:05:31,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:05:31,306 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
[2024-11-08 18:05:31,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/mathsat
[2024-11-08 18:05:31,318 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/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)
[2024-11-08 18:05:31,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/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
[2024-11-08 18:05:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:31,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-08 18:05:31,835 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:05:31,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:05:31,854 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:05:31,855 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:05:31,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584520376]
[2024-11-08 18:05:31,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584520376] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:05:31,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:05:31,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:05:31,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300503188]
[2024-11-08 18:05:31,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:05:31,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 18:05:31,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:05:31,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 18:05:31,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 18:05:31,889 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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)
[2024-11-08 18:05:31,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:05:31,898 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions.
[2024-11-08 18:05:31,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 18:05:31,900 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8
[2024-11-08 18:05:31,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:05:31,908 INFO L225 Difference]: With dead ends: 23
[2024-11-08 18:05:31,908 INFO L226 Difference]: Without dead ends: 9
[2024-11-08 18:05:31,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 18:05:31,916 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 18:05:31,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:05:31,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2024-11-08 18:05:31,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2024-11-08 18:05:31,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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)
[2024-11-08 18:05:31,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2024-11-08 18:05:31,964 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8
[2024-11-08 18:05:31,965 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:05:31,965 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2024-11-08 18:05:31,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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)
[2024-11-08 18:05:31,966 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2024-11-08 18:05:31,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 18:05:31,966 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:05:31,966 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:05:31,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/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
[2024-11-08 18:05:32,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/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
[2024-11-08 18:05:32,168 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:05:32,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:05:32,169 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times
[2024-11-08 18:05:32,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:05:32,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27180274]
[2024-11-08 18:05:32,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:05:32,170 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
[2024-11-08 18:05:32,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/mathsat
[2024-11-08 18:05:32,174 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/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)
[2024-11-08 18:05:32,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/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
[2024-11-08 18:05:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:32,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-08 18:05:32,744 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:05:53,397 WARN L286 SmtUtils]: Spent 5.74s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-08 18:06:16,034 WARN L286 SmtUtils]: Spent 5.20s 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)
[2024-11-08 18:06:36,974 WARN L286 SmtUtils]: Spent 8.10s 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)
[2024-11-08 18:06:41,180 WARN L851 $PredicateComparison]: unable to prove that (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (or (exists ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (and (fp.leq |v_ULTIMATE.start_main_~x~0#1_8| .cse0) (not (fp.leq (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_8| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.geq |v_ULTIMATE.start_main_~x~0#1_8| (_ +zero 11 53)))) (exists ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (and (fp.geq |v_ULTIMATE.start_main_~x~0#1_8| (_ +zero 11 53)) (not (fp.geq (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_8| .cse0) (_ +zero 11 53)))))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) is different from false
[2024-11-08 18:06:55,359 WARN L286 SmtUtils]: Spent 5.98s 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)
[2024-11-08 18:07:02,338 WARN L286 SmtUtils]: Spent 6.98s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-08 18:07:11,824 WARN L286 SmtUtils]: Spent 5.44s 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)
[2024-11-08 18:07:17,884 WARN L286 SmtUtils]: Spent 6.06s 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)
[2024-11-08 18:07:21,942 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (or (exists ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (and (fp.leq |v_ULTIMATE.start_main_~x~0#1_8| .cse0) (not (fp.leq (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_8| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))) (exists ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (and (fp.geq |v_ULTIMATE.start_main_~x~0#1_8| (_ +zero 11 53)) (not (fp.geq (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_8| .cse0) (_ +zero 11 53))))))) is different from false
[2024-11-08 18:07:25,962 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (or (exists ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (and (fp.leq |v_ULTIMATE.start_main_~x~0#1_8| .cse0) (not (fp.leq (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_8| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))) (exists ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (and (fp.geq |v_ULTIMATE.start_main_~x~0#1_8| (_ +zero 11 53)) (not (fp.geq (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_8| .cse0) (_ +zero 11 53))))))) is different from true
[2024-11-08 18:07:25,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:07:25,963 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:07:25,963 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:07:25,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27180274]
[2024-11-08 18:07:25,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27180274] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:07:25,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:07:25,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 18:07:25,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829298746]
[2024-11-08 18:07:25,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:07:25,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 18:07:25,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:07:25,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 18:07:25,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=18, Unknown=4, NotChecked=18, Total=56
[2024-11-08 18:07:25,967 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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)
[2024-11-08 18:07:27,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 18:07:30,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-08 18:07:34,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-08 18:07:39,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-08 18:07:40,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-08 18:07:42,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-08 18:07:43,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-08 18:07:48,432 WARN L851 $PredicateComparison]: unable to prove that (and (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (or (exists ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (and (fp.leq |v_ULTIMATE.start_main_~x~0#1_8| .cse0) (not (fp.leq (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_8| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.geq |v_ULTIMATE.start_main_~x~0#1_8| (_ +zero 11 53)))) (exists ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (and (fp.geq |v_ULTIMATE.start_main_~x~0#1_8| (_ +zero 11 53)) (not (fp.geq (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_8| .cse0) (_ +zero 11 53)))))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false
[2024-11-08 18:07:48,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:07:48,458 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions.
[2024-11-08 18:07:48,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 18:07:48,459 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 8
[2024-11-08 18:07:48,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:07:48,459 INFO L225 Difference]: With dead ends: 13
[2024-11-08 18:07:48,460 INFO L226 Difference]: Without dead ends: 9
[2024-11-08 18:07:48,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.4s TimeCoverageRelationStatistics Valid=18, Invalid=19, Unknown=5, NotChecked=30, Total=72
[2024-11-08 18:07:48,462 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time
[2024-11-08 18:07:48,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 10 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 2 Unknown, 24 Unchecked, 18.4s Time]
[2024-11-08 18:07:48,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2024-11-08 18:07:48,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2024-11-08 18:07:48,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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)
[2024-11-08 18:07:48,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions.
[2024-11-08 18:07:48,467 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8
[2024-11-08 18:07:48,467 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:07:48,468 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions.
[2024-11-08 18:07:48,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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)
[2024-11-08 18:07:48,468 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions.
[2024-11-08 18:07:48,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 18:07:48,469 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:07:48,469 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:07:48,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/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)] Ended with exit code 0
[2024-11-08 18:07:48,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/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
[2024-11-08 18:07:48,671 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:07:48,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:07:48,672 INFO L85 PathProgramCache]: Analyzing trace with hash 176701705, now seen corresponding path program 1 times
[2024-11-08 18:07:48,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:07:48,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795235596]
[2024-11-08 18:07:48,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:07:48,673 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
[2024-11-08 18:07:48,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/mathsat
[2024-11-08 18:07:48,677 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/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)
[2024-11-08 18:07:48,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/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
[2024-11-08 18:07:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:07:49,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-08 18:07:49,145 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:08:15,060 WARN L286 SmtUtils]: Spent 12.44s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-08 18:08:22,729 WARN L286 SmtUtils]: Spent 7.66s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-08 18:08:30,880 WARN L286 SmtUtils]: Spent 8.15s 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)
[2024-11-08 18:08:39,012 WARN L286 SmtUtils]: Spent 8.13s 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)
[2024-11-08 18:08:44,806 WARN L286 SmtUtils]: Spent 5.79s 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)
[2024-11-08 18:08:48,857 WARN L851 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~x~0#1_9| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_9| |v_ULTIMATE.start_main_~x~0#1_9|))) (and (fp.leq |v_ULTIMATE.start_main_~x~0#1_9| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (fp.geq (fp.sub c_currentRoundingMode .cse0 |v_ULTIMATE.start_main_~x~0#1_9|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) |c_ULTIMATE.start_main_~y~0#1|)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false
[2024-11-08 18:09:08,827 WARN L286 SmtUtils]: Spent 6.93s 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)
[2024-11-08 18:09:23,696 WARN L286 SmtUtils]: Spent 7.99s 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)
[2024-11-08 18:09:35,425 WARN L286 SmtUtils]: Spent 7.03s 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)
[2024-11-08 18:09:46,508 WARN L286 SmtUtils]: Spent 7.02s 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)
[2024-11-08 18:09:53,389 WARN L286 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 5 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-08 18:09:59,887 WARN L286 SmtUtils]: Spent 6.50s 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)
[2024-11-08 18:10:06,270 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (or (and (exists ((|v_ULTIMATE.start_main_~x~0#1_9| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_9| |v_ULTIMATE.start_main_~x~0#1_9|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~x~0#1_9|) .cse1)) (fp.leq (fp.add roundNearestTiesToEven .cse0 .cse2) .cse3)))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (exists ((|v_ULTIMATE.start_main_~x~0#1_9| (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_9| |v_ULTIMATE.start_main_~x~0#1_9|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 |v_ULTIMATE.start_main_~x~0#1_9|) .cse1)) (fp.leq |v_ULTIMATE.start_main_~x~0#1_9| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.leq (fp.add roundNearestTiesToEven .cse4 .cse2) .cse3)))))))) is different from false
[2024-11-08 18:10:18,429 WARN L286 SmtUtils]: Spent 8.11s 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)
[2024-11-08 18:10:31,430 WARN L286 SmtUtils]: Spent 8.12s 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)
[2024-11-08 18:10:35,469 WARN L851 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~x~0#1_9| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_9| |v_ULTIMATE.start_main_~x~0#1_9|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~x~0#1_9|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq |v_ULTIMATE.start_main_~x~0#1_9| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0)))))) is different from false
[2024-11-08 18:10:39,494 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~x~0#1_9| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_9| |v_ULTIMATE.start_main_~x~0#1_9|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~x~0#1_9|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq |v_ULTIMATE.start_main_~x~0#1_9| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0)))))) is different from true
[2024-11-08 18:10:39,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:10:39,494 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:10:39,494 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:10:39,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795235596]
[2024-11-08 18:10:39,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795235596] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:10:39,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:10:39,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 18:10:39,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130071258]
[2024-11-08 18:10:39,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:10:39,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-08 18:10:39,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:10:39,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-08 18:10:39,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=19, Unknown=4, NotChecked=30, Total=72
[2024-11-08 18:10:39,497 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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)
[2024-11-08 18:10:44,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-08 18:10:47,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.67s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-08 18:10:47,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:10:47,799 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions.
[2024-11-08 18:10:47,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 18:10:47,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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 8
[2024-11-08 18:10:47,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:10:47,839 INFO L225 Difference]: With dead ends: 9
[2024-11-08 18:10:47,839 INFO L226 Difference]: Without dead ends: 0
[2024-11-08 18:10:47,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.6s TimeCoverageRelationStatistics Valid=19, Invalid=19, Unknown=4, NotChecked=30, Total=72
[2024-11-08 18:10:47,840 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time
[2024-11-08 18:10:47,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 1 Unknown, 27 Unchecked, 8.3s Time]
[2024-11-08 18:10:47,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-08 18:10:47,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-08 18:10:47,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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)
[2024-11-08 18:10:47,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-08 18:10:47,843 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8
[2024-11-08 18:10:47,844 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:10:47,844 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-08 18:10:47,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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)
[2024-11-08 18:10:47,844 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-08 18:10:47,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-08 18:10:47,851 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-08 18:10:47,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/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)] Forceful destruction successful, exit code 0
[2024-11-08 18:10:48,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/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
[2024-11-08 18:10:48,054 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-11-08 18:10:48,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-08 18:10:48,061 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 18:10:48,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:10:48 BoogieIcfgContainer
[2024-11-08 18:10:48,068 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 18:10:48,069 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 18:10:48,069 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 18:10:48,070 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 18:10:48,070 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:05:31" (3/4) ...
[2024-11-08 18:10:48,073 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-08 18:10:48,082 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-11-08 18:10:48,082 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-11-08 18:10:48,082 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-08 18:10:48,083 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-08 18:10:48,173 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/witness.graphml
[2024-11-08 18:10:48,176 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/witness.yml
[2024-11-08 18:10:48,177 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 18:10:48,178 INFO L158 Benchmark]: Toolchain (without parser) took 323789.84ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 53.0MB in the beginning and 69.0MB in the end (delta: -16.0MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB.
[2024-11-08 18:10:48,178 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 77.6MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 18:10:48,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.13ms. Allocated memory is still 77.6MB. Free memory was 52.8MB in the beginning and 40.1MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-08 18:10:48,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.63ms. Allocated memory is still 77.6MB. Free memory was 40.1MB in the beginning and 38.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:10:48,179 INFO L158 Benchmark]: Boogie Preprocessor took 66.14ms. Allocated memory is still 77.6MB. Free memory was 38.6MB in the beginning and 36.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:10:48,179 INFO L158 Benchmark]: RCFGBuilder took 6242.45ms. Allocated memory is still 77.6MB. Free memory was 36.6MB in the beginning and 49.9MB in the end (delta: -13.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2024-11-08 18:10:48,180 INFO L158 Benchmark]: TraceAbstraction took 316923.94ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 49.4MB in the beginning and 39.8MB in the end (delta: 9.6MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB.
[2024-11-08 18:10:48,184 INFO L158 Benchmark]: Witness Printer took 107.80ms. Allocated memory is still 94.4MB. Free memory was 39.8MB in the beginning and 69.0MB in the end (delta: -29.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:10:48,186 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.30ms. Allocated memory is still 77.6MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 394.13ms. Allocated memory is still 77.6MB. Free memory was 52.8MB in the beginning and 40.1MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 42.63ms. Allocated memory is still 77.6MB. Free memory was 40.1MB in the beginning and 38.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 66.14ms. Allocated memory is still 77.6MB. Free memory was 38.6MB in the beginning and 36.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 6242.45ms. Allocated memory is still 77.6MB. Free memory was 36.6MB in the beginning and 49.9MB in the end (delta: -13.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
* TraceAbstraction took 316923.94ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 49.4MB in the beginning and 39.8MB in the end (delta: 9.6MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB.
* Witness Printer took 107.80ms. Allocated memory is still 94.4MB. Free memory was 39.8MB in the beginning and 69.0MB in the end (delta: -29.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 14]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 316.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 30.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 26.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 26.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 51 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 283.7s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 6 QuantifiedInterpolants, 369 SizeOfPredicates, 2 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-08 18:10:48,405 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process
[2024-11-08 18:10:48,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03846601-2324-42bd-afaa-c104cfd0052d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE