./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 9bd2c7ff
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_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu --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 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:35:48,690 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:35:48,805 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-19 07:35:48,813 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:35:48,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:35:48,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:35:48,843 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:35:48,844 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:35:48,845 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:35:48,845 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:35:48,846 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:35:48,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:35:48,848 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:35:48,848 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:35:48,849 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:35:48,850 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:35:48,850 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:35:48,851 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:35:48,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:35:48,852 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:35:48,852 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:35:48,853 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:35:48,854 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:35:48,854 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:35:48,854 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:35:48,855 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:35:48,855 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:35:48,856 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:35:48,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:35:48,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:35:48,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:35:48,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:35:48,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:35:48,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:35:48,859 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:35:48,859 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:35:48,859 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:35:48,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:35:48,860 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:35:48,860 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_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e
[2023-11-19 07:35:49,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:35:49,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:35:49,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:35:49,167 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:35:49,168 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:35:49,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i
[2023-11-19 07:35:52,619 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:35:52,967 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:35:52,968 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/sv-benchmarks/c/floats-cdfpl/newton_1_5.i
[2023-11-19 07:35:52,979 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/data/2507ff46f/a00b65b992614dc09fff88e7d13a119f/FLAG161ebd79c
[2023-11-19 07:35:53,008 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/data/2507ff46f/a00b65b992614dc09fff88e7d13a119f
[2023-11-19 07:35:53,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:35:53,014 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:35:53,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:35:53,017 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:35:53,030 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:35:53,031 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:53" (1/1) ...
[2023-11-19 07:35:53,032 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@467f4849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:53, skipping insertion in model container
[2023-11-19 07:35:53,032 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:53" (1/1) ...
[2023-11-19 07:35:53,065 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:35:53,266 WARN L240 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_623c2522-738b-405f-b574-b429e1958a96/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1722,1735]
[2023-11-19 07:35:53,270 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:35:53,283 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:35:53,300 WARN L240 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_623c2522-738b-405f-b574-b429e1958a96/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1722,1735]
[2023-11-19 07:35:53,301 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:35:53,315 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:35:53,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:53 WrapperNode
[2023-11-19 07:35:53,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:35:53,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:35:53,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:35:53,318 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:35:53,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:53" (1/1) ...
[2023-11-19 07:35:53,337 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:53" (1/1) ...
[2023-11-19 07:35:53,357 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30
[2023-11-19 07:35:53,358 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:35:53,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:35:53,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:35:53,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:35:53,371 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:53" (1/1) ...
[2023-11-19 07:35:53,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:53" (1/1) ...
[2023-11-19 07:35:53,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:53" (1/1) ...
[2023-11-19 07:35:53,373 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:53" (1/1) ...
[2023-11-19 07:35:53,379 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:53" (1/1) ...
[2023-11-19 07:35:53,388 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:53" (1/1) ...
[2023-11-19 07:35:53,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:53" (1/1) ...
[2023-11-19 07:35:53,396 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:53" (1/1) ...
[2023-11-19 07:35:53,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:35:53,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:35:53,400 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:35:53,400 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:35:53,401 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:53" (1/1) ...
[2023-11-19 07:35:53,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:35:53,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:35:53,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:35:53,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:35:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:35:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:35:53,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:35:53,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:35:53,635 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:35:53,638 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:35:53,864 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:35:53,874 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:35:53,875 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 07:35:53,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:53 BoogieIcfgContainer
[2023-11-19 07:35:53,903 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:35:53,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:35:53,908 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:35:53,913 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:35:53,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:35:53" (1/3) ...
[2023-11-19 07:35:53,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270a5161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:53, skipping insertion in model container
[2023-11-19 07:35:53,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:53" (2/3) ...
[2023-11-19 07:35:53,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270a5161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:53, skipping insertion in model container
[2023-11-19 07:35:53,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:53" (3/3) ...
[2023-11-19 07:35:53,923 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_5.i
[2023-11-19 07:35:53,942 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:35:53,942 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-19 07:35:53,997 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:35:54,005 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@30cd59a2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:35:54,005 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-19 07:35:54,009 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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)
[2023-11-19 07:35:54,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-11-19 07:35:54,016 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:35:54,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:35:54,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:35:54,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:35:54,024 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times
[2023-11-19 07:35:54,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:35:54,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799608320]
[2023-11-19 07:35:54,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:35:54,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:35:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:35:54,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:35:54,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:35:54,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799608320]
[2023-11-19 07:35:54,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799608320] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:35:54,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:35:54,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:35:54,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955296335]
[2023-11-19 07:35:54,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:35:54,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:35:54,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:35:54,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:35:54,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:35:54,234 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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)
[2023-11-19 07:35:54,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:35:54,246 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions.
[2023-11-19 07:35:54,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:35:54,248 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
[2023-11-19 07:35:54,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:35:54,256 INFO L225 Difference]: With dead ends: 23
[2023-11-19 07:35:54,256 INFO L226 Difference]: Without dead ends: 9
[2023-11-19 07:35:54,259 INFO L412 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
[2023-11-19 07:35:54,263 INFO L413 NwaCegarLoop]: 12 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, 12 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
[2023-11-19 07:35:54,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:35:54,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2023-11-19 07:35:54,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2023-11-19 07:35:54,290 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)
[2023-11-19 07:35:54,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions.
[2023-11-19 07:35:54,292 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8
[2023-11-19 07:35:54,292 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:35:54,292 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions.
[2023-11-19 07:35:54,293 INFO L496 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)
[2023-11-19 07:35:54,293 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions.
[2023-11-19 07:35:54,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-11-19 07:35:54,293 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:35:54,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:35:54,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:35:54,294 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:35:54,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:35:54,295 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times
[2023-11-19 07:35:54,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:35:54,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385284354]
[2023-11-19 07:35:54,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:35:54,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:35:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:35:54,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:35:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:35:54,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:35:54,357 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 07:35:54,360 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-19 07:35:54,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 07:35:54,370 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-19 07:35:54,382 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:35:54,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:35:54 BoogieIcfgContainer
[2023-11-19 07:35:54,419 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:35:54,420 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:35:54,420 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:35:54,421 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:35:54,421 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:53" (3/4) ...
[2023-11-19 07:35:54,424 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 07:35:54,425 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:35:54,426 INFO L158 Benchmark]: Toolchain (without parser) took 1412.39ms. Allocated memory is still 205.5MB. Free memory was 173.8MB in the beginning and 126.0MB in the end (delta: 47.8MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB.
[2023-11-19 07:35:54,427 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 205.5MB. Free memory is still 180.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:35:54,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.03ms. Allocated memory is still 205.5MB. Free memory was 173.5MB in the beginning and 163.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-19 07:35:54,428 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.78ms. Allocated memory is still 205.5MB. Free memory was 163.1MB in the beginning and 161.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:35:54,429 INFO L158 Benchmark]: Boogie Preprocessor took 40.22ms. Allocated memory is still 205.5MB. Free memory was 161.4MB in the beginning and 160.5MB in the end (delta: 892.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:35:54,429 INFO L158 Benchmark]: RCFGBuilder took 503.02ms. Allocated memory is still 205.5MB. Free memory was 160.5MB in the beginning and 150.3MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2023-11-19 07:35:54,430 INFO L158 Benchmark]: TraceAbstraction took 513.53ms. Allocated memory is still 205.5MB. Free memory was 149.4MB in the beginning and 126.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
[2023-11-19 07:35:54,431 INFO L158 Benchmark]: Witness Printer took 5.47ms. Allocated memory is still 205.5MB. Free memory was 126.3MB in the beginning and 126.0MB in the end (delta: 300.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:35:54,442 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 205.5MB. Free memory is still 180.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 300.03ms. Allocated memory is still 205.5MB. Free memory was 173.5MB in the beginning and 163.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 40.78ms. Allocated memory is still 205.5MB. Free memory was 163.1MB in the beginning and 161.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 40.22ms. Allocated memory is still 205.5MB. Free memory was 161.4MB in the beginning and 160.5MB in the end (delta: 892.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 503.02ms. Allocated memory is still 205.5MB. Free memory was 160.5MB in the beginning and 150.3MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 513.53ms. Allocated memory is still 205.5MB. Free memory was 149.4MB in the beginning and 126.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
* Witness Printer took 5.47ms. Allocated memory is still 205.5MB. Free memory was 126.3MB in the beginning and 126.0MB in the end (delta: 300.8kB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 51]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 42.
Possible FailurePath:
[L39] float IN = __VERIFIER_nondet_float();
[L40] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f)
[L24] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1]
[L40] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f)
[L42] CALL, EXPR f(IN)
[L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f;
VAL [\old(x)=53, x=53]
[L42] RET, EXPR f(IN)
[L42] CALL, EXPR fp(IN)
[L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f;
VAL [\old(x)=53, x=53]
[L42] RET, EXPR fp(IN)
[L42] float x = IN - f(IN)/fp(IN);
[L50] COND TRUE !(x < 0.1)
VAL [IN=53]
[L51] reach_error()
VAL [IN=53]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 12 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, 12 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, 0.0s SatisfiabilityAnalysisTime, 0.0s 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
[2023-11-19 07:35:54,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu --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 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:35:57,371 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:35:57,485 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-11-19 07:35:57,496 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:35:57,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:35:57,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:35:57,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:35:57,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:35:57,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:35:57,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:35:57,550 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:35:57,551 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:35:57,551 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:35:57,553 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:35:57,554 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:35:57,554 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:35:57,554 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:35:57,555 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:35:57,555 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:35:57,556 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:35:57,556 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:35:57,557 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:35:57,557 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-19 07:35:57,557 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-19 07:35:57,558 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:35:57,558 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:35:57,559 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:35:57,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:35:57,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:35:57,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:35:57,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:35:57,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:35:57,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:35:57,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:35:57,562 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-11-19 07:35:57,563 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-19 07:35:57,563 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:35:57,563 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:35:57,563 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:35:57,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:35:57,565 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-11-19 07:35:57,565 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:35:57,565 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_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e
[2023-11-19 07:35:57,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:35:58,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:35:58,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:35:58,010 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:35:58,010 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:35:58,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i
[2023-11-19 07:36:01,386 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:36:01,674 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:36:01,675 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/sv-benchmarks/c/floats-cdfpl/newton_1_5.i
[2023-11-19 07:36:01,686 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/data/3e644af5f/7152a48e7145425b95ff33e6ed14d0d5/FLAGd242e1ee7
[2023-11-19 07:36:01,701 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/data/3e644af5f/7152a48e7145425b95ff33e6ed14d0d5
[2023-11-19 07:36:01,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:36:01,706 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:36:01,707 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:36:01,708 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:36:01,713 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:36:01,714 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:01" (1/1) ...
[2023-11-19 07:36:01,715 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16bf43b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:01, skipping insertion in model container
[2023-11-19 07:36:01,716 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:01" (1/1) ...
[2023-11-19 07:36:01,739 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:36:01,897 WARN L240 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_623c2522-738b-405f-b574-b429e1958a96/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1722,1735]
[2023-11-19 07:36:01,901 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:36:01,915 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:36:01,934 WARN L240 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_623c2522-738b-405f-b574-b429e1958a96/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1722,1735]
[2023-11-19 07:36:01,935 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:36:01,953 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:36:01,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:01 WrapperNode
[2023-11-19 07:36:01,954 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:36:01,955 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:36:01,955 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:36:01,955 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:36:01,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:01" (1/1) ...
[2023-11-19 07:36:01,974 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:01" (1/1) ...
[2023-11-19 07:36:01,995 INFO L138 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31
[2023-11-19 07:36:01,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:36:01,997 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:36:01,997 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:36:01,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:36:02,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:01" (1/1) ...
[2023-11-19 07:36:02,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:01" (1/1) ...
[2023-11-19 07:36:02,010 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:01" (1/1) ...
[2023-11-19 07:36:02,011 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:01" (1/1) ...
[2023-11-19 07:36:02,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:01" (1/1) ...
[2023-11-19 07:36:02,021 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:01" (1/1) ...
[2023-11-19 07:36:02,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:01" (1/1) ...
[2023-11-19 07:36:02,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:01" (1/1) ...
[2023-11-19 07:36:02,028 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:36:02,029 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:36:02,030 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:36:02,030 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:36:02,031 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:01" (1/1) ...
[2023-11-19 07:36:02,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:36:02,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:36:02,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:36:02,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:36:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:36:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-19 07:36:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:36:02,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:36:02,210 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:36:02,213 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:36:07,705 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:36:07,711 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:36:07,711 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 07:36:07,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:07 BoogieIcfgContainer
[2023-11-19 07:36:07,714 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:36:07,716 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:36:07,716 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:36:07,722 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:36:07,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:36:01" (1/3) ...
[2023-11-19 07:36:07,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f59a736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:07, skipping insertion in model container
[2023-11-19 07:36:07,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:01" (2/3) ...
[2023-11-19 07:36:07,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f59a736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:07, skipping insertion in model container
[2023-11-19 07:36:07,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:07" (3/3) ...
[2023-11-19 07:36:07,727 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_5.i
[2023-11-19 07:36:07,747 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:36:07,748 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-19 07:36:07,800 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:36:07,807 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@2e26da5b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:36:07,807 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-19 07:36:07,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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)
[2023-11-19 07:36:07,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-11-19 07:36:07,817 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:36:07,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:36:07,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:36:07,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:36:07,831 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times
[2023-11-19 07:36:07,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:36:07,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662263969]
[2023-11-19 07:36:07,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:36:07,847 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
[2023-11-19 07:36:07,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:36:07,852 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/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)
[2023-11-19 07:36:07,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/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
[2023-11-19 07:36:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:36:09,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-11-19 07:36:09,025 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:36:09,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:36:09,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:36:09,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:36:09,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662263969]
[2023-11-19 07:36:09,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662263969] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:36:09,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:36:09,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:36:09,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53889015]
[2023-11-19 07:36:09,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:36:09,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:36:09,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:36:09,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:36:09,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:36:09,082 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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)
[2023-11-19 07:36:09,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:36:09,095 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions.
[2023-11-19 07:36:09,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:36:09,097 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
[2023-11-19 07:36:09,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:36:09,106 INFO L225 Difference]: With dead ends: 23
[2023-11-19 07:36:09,106 INFO L226 Difference]: Without dead ends: 9
[2023-11-19 07:36:09,109 INFO L412 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
[2023-11-19 07:36:09,113 INFO L413 NwaCegarLoop]: 12 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, 12 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
[2023-11-19 07:36:09,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:36:09,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2023-11-19 07:36:09,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2023-11-19 07:36:09,141 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)
[2023-11-19 07:36:09,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions.
[2023-11-19 07:36:09,143 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8
[2023-11-19 07:36:09,143 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:36:09,143 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions.
[2023-11-19 07:36:09,144 INFO L496 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)
[2023-11-19 07:36:09,144 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions.
[2023-11-19 07:36:09,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-11-19 07:36:09,145 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:36:09,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:36:09,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-11-19 07:36:09,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/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
[2023-11-19 07:36:09,356 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:36:09,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:36:09,357 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times
[2023-11-19 07:36:09,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:36:09,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880573884]
[2023-11-19 07:36:09,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:36:09,358 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
[2023-11-19 07:36:09,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:36:09,360 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/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)
[2023-11-19 07:36:09,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623c2522-738b-405f-b574-b429e1958a96/bin/uautomizer-verify-uCwYo4JHxu/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
[2023-11-19 07:36:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:36:28,816 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.