./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 527bcce2
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx --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 2d431936a29cc36080ed8e682b8710bc84852895ee04dfb24fab46f24aa96450
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-527bcce
[2023-11-21 21:00:34,529 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-21 21:00:34,607 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-21 21:00:34,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-21 21:00:34,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-21 21:00:34,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-21 21:00:34,645 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-21 21:00:34,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-21 21:00:34,646 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-21 21:00:34,647 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-11-21 21:00:34,648 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-21 21:00:34,648 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-21 21:00:34,649 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-21 21:00:34,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-21 21:00:34,651 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-21 21:00:34,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-21 21:00:34,652 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-21 21:00:34,653 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-21 21:00:34,654 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-21 21:00:34,654 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-21 21:00:34,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-21 21:00:34,656 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-21 21:00:34,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-21 21:00:34,658 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-21 21:00:34,658 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-21 21:00:34,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-21 21:00:34,660 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-21 21:00:34,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-21 21:00:34,661 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-21 21:00:34,662 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-21 21:00:34,662 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-21 21:00:34,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 21:00:34,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-21 21:00:34,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-21 21:00:34,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-21 21:00:34,666 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-21 21:00:34,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-21 21:00:34,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-21 21:00:34,668 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-21 21:00:34,668 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-21 21:00:34,669 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-21 21:00:34,669 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-21 21:00:34,670 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_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d431936a29cc36080ed8e682b8710bc84852895ee04dfb24fab46f24aa96450
[2023-11-21 21:00:35,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-21 21:00:35,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-21 21:00:35,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-21 21:00:35,067 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-21 21:00:35,067 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-21 21:00:35,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c
[2023-11-21 21:00:38,202 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-21 21:00:38,466 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-21 21:00:38,467 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/sv-benchmarks/c/float-newlib/float_req_bl_0720.c
[2023-11-21 21:00:38,482 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/data/b2e8d7b9b/e5ae51ad71ed4457bca9920b2aab539f/FLAG2a097d2b1
[2023-11-21 21:00:38,496 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/data/b2e8d7b9b/e5ae51ad71ed4457bca9920b2aab539f
[2023-11-21 21:00:38,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-21 21:00:38,500 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-21 21:00:38,502 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-21 21:00:38,502 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-21 21:00:38,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-21 21:00:38,509 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:38" (1/1) ...
[2023-11-21 21:00:38,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@421b655a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:38, skipping insertion in model container
[2023-11-21 21:00:38,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:38" (1/1) ...
[2023-11-21 21:00:38,536 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-21 21:00:38,742 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_47164919-562a-4b74-8b4a-5d6eb04068fe/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942]
[2023-11-21 21:00:38,747 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-21 21:00:38,759 INFO L202 MainTranslator]: Completed pre-run
[2023-11-21 21:00:38,790 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_47164919-562a-4b74-8b4a-5d6eb04068fe/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942]
[2023-11-21 21:00:38,791 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-21 21:00:38,811 INFO L206 MainTranslator]: Completed translation
[2023-11-21 21:00:38,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:38 WrapperNode
[2023-11-21 21:00:38,811 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-21 21:00:38,815 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-21 21:00:38,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-21 21:00:38,816 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-21 21:00:38,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:38" (1/1) ...
[2023-11-21 21:00:38,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:38" (1/1) ...
[2023-11-21 21:00:38,863 INFO L138 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 136
[2023-11-21 21:00:38,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-21 21:00:38,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-21 21:00:38,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-21 21:00:38,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-21 21:00:38,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:38" (1/1) ...
[2023-11-21 21:00:38,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:38" (1/1) ...
[2023-11-21 21:00:38,880 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:38" (1/1) ...
[2023-11-21 21:00:38,895 INFO L187 HeapSplitter]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]
[2023-11-21 21:00:38,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:38" (1/1) ...
[2023-11-21 21:00:38,896 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:38" (1/1) ...
[2023-11-21 21:00:38,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:38" (1/1) ...
[2023-11-21 21:00:38,911 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:38" (1/1) ...
[2023-11-21 21:00:38,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:38" (1/1) ...
[2023-11-21 21:00:38,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:38" (1/1) ...
[2023-11-21 21:00:38,920 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-21 21:00:38,921 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-21 21:00:38,922 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-21 21:00:38,922 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-21 21:00:38,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:38" (1/1) ...
[2023-11-21 21:00:38,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 21:00:38,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/z3
[2023-11-21 21:00:38,968 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-21 21:00:38,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-21 21:00:39,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-21 21:00:39,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-21 21:00:39,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2023-11-21 21:00:39,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2023-11-21 21:00:39,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-21 21:00:39,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0
[2023-11-21 21:00:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1
[2023-11-21 21:00:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2
[2023-11-21 21:00:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2023-11-21 21:00:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2023-11-21 21:00:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2023-11-21 21:00:39,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0
[2023-11-21 21:00:39,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1
[2023-11-21 21:00:39,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2
[2023-11-21 21:00:39,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-21 21:00:39,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-21 21:00:39,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2023-11-21 21:00:39,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2023-11-21 21:00:39,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2023-11-21 21:00:39,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-21 21:00:39,118 INFO L240 CfgBuilder]: Building ICFG
[2023-11-21 21:00:39,120 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-21 21:00:39,469 INFO L281 CfgBuilder]: Performing block encoding
[2023-11-21 21:00:39,673 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-21 21:00:39,673 INFO L308 CfgBuilder]: Removed 6 assume(true) statements.
[2023-11-21 21:00:39,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:39 BoogieIcfgContainer
[2023-11-21 21:00:39,689 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-21 21:00:39,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-21 21:00:39,692 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-21 21:00:39,696 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-21 21:00:39,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:00:38" (1/3) ...
[2023-11-21 21:00:39,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e3c9eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:39, skipping insertion in model container
[2023-11-21 21:00:39,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:38" (2/3) ...
[2023-11-21 21:00:39,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e3c9eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:39, skipping insertion in model container
[2023-11-21 21:00:39,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:39" (3/3) ...
[2023-11-21 21:00:39,700 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c
[2023-11-21 21:00:39,719 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-21 21:00:39,720 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-21 21:00:39,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-21 21:00:39,789 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;@3a50c087, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-21 21:00:39,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-21 21:00:39,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.65) internal successors, (33), 21 states have internal predecessors, (33), 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)
[2023-11-21 21:00:39,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-11-21 21:00:39,809 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 21:00:39,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-21 21:00:39,810 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 21:00:39,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 21:00:39,815 INFO L85 PathProgramCache]: Analyzing trace with hash 336084601, now seen corresponding path program 1 times
[2023-11-21 21:00:39,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-21 21:00:39,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468369681]
[2023-11-21 21:00:39,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 21:00:39,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-21 21:00:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 21:00:40,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 21:00:40,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-21 21:00:40,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468369681]
[2023-11-21 21:00:40,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468369681] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 21:00:40,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 21:00:40,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-21 21:00:40,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023826018]
[2023-11-21 21:00:40,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 21:00:40,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-21 21:00:40,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-21 21:00:40,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-21 21:00:40,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-21 21:00:40,136 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.65) internal successors, (33), 21 states have internal predecessors, (33), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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)
[2023-11-21 21:00:40,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 21:00:40,199 INFO L93 Difference]: Finished difference Result 43 states and 65 transitions.
[2023-11-21 21:00:40,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-21 21:00:40,203 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7
[2023-11-21 21:00:40,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 21:00:40,214 INFO L225 Difference]: With dead ends: 43
[2023-11-21 21:00:40,215 INFO L226 Difference]: Without dead ends: 20
[2023-11-21 21:00:40,219 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
[2023-11-21 21:00:40,224 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-21 21:00:40,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-21 21:00:40,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2023-11-21 21:00:40,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2023-11-21 21:00:40,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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)
[2023-11-21 21:00:40,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions.
[2023-11-21 21:00:40,277 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 7
[2023-11-21 21:00:40,278 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 21:00:40,278 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions.
[2023-11-21 21:00:40,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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)
[2023-11-21 21:00:40,279 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions.
[2023-11-21 21:00:40,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-11-21 21:00:40,281 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 21:00:40,281 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 21:00:40,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-21 21:00:40,283 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 21:00:40,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 21:00:40,284 INFO L85 PathProgramCache]: Analyzing trace with hash -238679652, now seen corresponding path program 1 times
[2023-11-21 21:00:40,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-21 21:00:40,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470451541]
[2023-11-21 21:00:40,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 21:00:40,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-21 21:00:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-21 21:00:40,395 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-21 21:00:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-21 21:00:40,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-21 21:00:40,505 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-21 21:00:40,507 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-21 21:00:40,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-21 21:00:40,514 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-21 21:00:40,519 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-21 21:00:40,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:00:40 BoogieIcfgContainer
[2023-11-21 21:00:40,552 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-21 21:00:40,553 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-21 21:00:40,553 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-21 21:00:40,553 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-21 21:00:40,554 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:39" (3/4) ...
[2023-11-21 21:00:40,557 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-21 21:00:40,559 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-21 21:00:40,560 INFO L158 Benchmark]: Toolchain (without parser) took 2059.54ms. Allocated memory is still 188.7MB. Free memory was 141.1MB in the beginning and 71.0MB in the end (delta: 70.1MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB.
[2023-11-21 21:00:40,561 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 188.7MB. Free memory is still 160.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-21 21:00:40,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.77ms. Allocated memory is still 188.7MB. Free memory was 141.1MB in the beginning and 129.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-11-21 21:00:40,566 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.66ms. Allocated memory is still 188.7MB. Free memory was 129.4MB in the beginning and 127.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-21 21:00:40,567 INFO L158 Benchmark]: Boogie Preprocessor took 55.67ms. Allocated memory is still 188.7MB. Free memory was 127.3MB in the beginning and 124.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-21 21:00:40,570 INFO L158 Benchmark]: RCFGBuilder took 767.87ms. Allocated memory is still 188.7MB. Free memory was 124.9MB in the beginning and 99.4MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2023-11-21 21:00:40,571 INFO L158 Benchmark]: TraceAbstraction took 860.39ms. Allocated memory is still 188.7MB. Free memory was 98.6MB in the beginning and 71.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
[2023-11-21 21:00:40,571 INFO L158 Benchmark]: Witness Printer took 6.06ms. Allocated memory is still 188.7MB. Free memory was 71.3MB in the beginning and 71.0MB in the end (delta: 328.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-21 21:00:40,579 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.35ms. Allocated memory is still 188.7MB. Free memory is still 160.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 309.77ms. Allocated memory is still 188.7MB. Free memory was 141.1MB in the beginning and 129.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 49.66ms. Allocated memory is still 188.7MB. Free memory was 129.4MB in the beginning and 127.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 55.67ms. Allocated memory is still 188.7MB. Free memory was 127.3MB in the beginning and 124.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 767.87ms. Allocated memory is still 188.7MB. Free memory was 124.9MB in the beginning and 99.4MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* TraceAbstraction took 860.39ms. Allocated memory is still 188.7MB. Free memory was 98.6MB in the beginning and 71.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
* Witness Printer took 6.06ms. Allocated memory is still 188.7MB. Free memory was 71.3MB in the beginning and 71.0MB in the end (delta: 328.7kB). 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: 98]: 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 15, overapproximation of someBinaryArithmeticFLOAToperation at line 32.
Possible FailurePath:
[L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30;
[L93] float x = 0.0f / 0.0f;
[L94] CALL, EXPR __ieee754_sqrtf(x)
[L20] float z;
[L21] __uint32_t r, hx;
[L22] __int32_t ix, s, q, m, t, i;
VAL [\old(x)=4286578696, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578696]
[L25] ieee_float_shape_type gf_u;
[L26] EXPR gf_u.value = (x)
[L27] EXPR gf_u.word
[L27] EXPR (ix) = gf_u.word
[L24-L28] {
ieee_float_shape_type gf_u;
gf_u.value = (x);
(ix) = gf_u.word;
}
VAL [\old(x)=4286578696, ix=-8388608, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578696]
[L29] hx = ix & 0x7fffffff
VAL [\old(x)=4286578696, hx=2139095040, ix=-8388608, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578696]
[L31] COND TRUE !((hx) < 0x7f800000L)
[L32] return x * x + x;
VAL [\old(x)=4286578696, hx=2139095040, ix=-8388608, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578696]
[L94] RET, EXPR __ieee754_sqrtf(x)
[L94] float res = __ieee754_sqrtf(x);
[L97] CALL, EXPR isnan_float(res)
[L15] return x != x;
[L97] RET, EXPR isnan_float(res)
[L97] COND TRUE !isnan_float(res)
[L98] reach_error()
VAL [one_sqrt=1, res=4286578695, tiny_sqrt=1/1000000000000000000000000000000, x=4286578696]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 19 mSDtfsCounter, 8 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=22occurred 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, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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
[2023-11-21 21:00:40,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx --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 2d431936a29cc36080ed8e682b8710bc84852895ee04dfb24fab46f24aa96450
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-527bcce
[2023-11-21 21:00:43,279 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-21 21:00:43,379 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-11-21 21:00:43,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-21 21:00:43,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-21 21:00:43,453 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-21 21:00:43,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-21 21:00:43,454 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-21 21:00:43,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-21 21:00:43,456 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-11-21 21:00:43,456 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-21 21:00:43,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-21 21:00:43,460 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-21 21:00:43,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-21 21:00:43,466 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-21 21:00:43,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-21 21:00:43,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-21 21:00:43,469 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-21 21:00:43,469 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-21 21:00:43,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-21 21:00:43,471 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-21 21:00:43,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-21 21:00:43,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-21 21:00:43,472 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-21 21:00:43,473 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-21 21:00:43,473 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-21 21:00:43,474 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-21 21:00:43,474 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-21 21:00:43,474 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-21 21:00:43,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-21 21:00:43,476 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-21 21:00:43,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-21 21:00:43,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-21 21:00:43,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 21:00:43,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-21 21:00:43,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-21 21:00:43,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-21 21:00:43,479 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-11-21 21:00:43,480 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-21 21:00:43,480 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-21 21:00:43,480 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-21 21:00:43,480 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-21 21:00:43,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-21 21:00:43,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-21 21:00:43,481 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-11-21 21:00:43,482 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_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d431936a29cc36080ed8e682b8710bc84852895ee04dfb24fab46f24aa96450
[2023-11-21 21:00:43,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-21 21:00:43,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-21 21:00:43,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-21 21:00:43,921 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-21 21:00:43,923 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-21 21:00:43,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c
[2023-11-21 21:00:47,286 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-21 21:00:47,538 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-21 21:00:47,539 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/sv-benchmarks/c/float-newlib/float_req_bl_0720.c
[2023-11-21 21:00:47,547 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/data/c9c46abeb/363572d099284d08a06cbffd5922697c/FLAGa8cf470b9
[2023-11-21 21:00:47,563 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/data/c9c46abeb/363572d099284d08a06cbffd5922697c
[2023-11-21 21:00:47,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-21 21:00:47,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-21 21:00:47,569 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-21 21:00:47,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-21 21:00:47,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-21 21:00:47,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:47" (1/1) ...
[2023-11-21 21:00:47,577 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50a47d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47, skipping insertion in model container
[2023-11-21 21:00:47,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:47" (1/1) ...
[2023-11-21 21:00:47,602 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-21 21:00:47,823 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_47164919-562a-4b74-8b4a-5d6eb04068fe/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942]
[2023-11-21 21:00:47,829 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-21 21:00:47,860 INFO L202 MainTranslator]: Completed pre-run
[2023-11-21 21:00:47,925 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_47164919-562a-4b74-8b4a-5d6eb04068fe/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942]
[2023-11-21 21:00:47,931 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-21 21:00:47,952 INFO L206 MainTranslator]: Completed translation
[2023-11-21 21:00:47,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47 WrapperNode
[2023-11-21 21:00:47,953 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-21 21:00:47,955 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-21 21:00:47,955 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-21 21:00:47,955 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-21 21:00:47,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ...
[2023-11-21 21:00:47,987 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ...
[2023-11-21 21:00:48,026 INFO L138 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115
[2023-11-21 21:00:48,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-21 21:00:48,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-21 21:00:48,029 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-21 21:00:48,029 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-21 21:00:48,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ...
[2023-11-21 21:00:48,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ...
[2023-11-21 21:00:48,064 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ...
[2023-11-21 21:00:48,076 INFO L187 HeapSplitter]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]
[2023-11-21 21:00:48,085 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ...
[2023-11-21 21:00:48,085 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ...
[2023-11-21 21:00:48,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ...
[2023-11-21 21:00:48,108 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ...
[2023-11-21 21:00:48,118 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ...
[2023-11-21 21:00:48,126 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ...
[2023-11-21 21:00:48,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-21 21:00:48,140 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-21 21:00:48,140 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-21 21:00:48,140 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-21 21:00:48,141 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (1/1) ...
[2023-11-21 21:00:48,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 21:00:48,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/z3
[2023-11-21 21:00:48,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-21 21:00:48,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-21 21:00:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-21 21:00:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-11-21 21:00:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2023-11-21 21:00:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2023-11-21 21:00:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-21 21:00:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0
[2023-11-21 21:00:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1
[2023-11-21 21:00:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2
[2023-11-21 21:00:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2023-11-21 21:00:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2023-11-21 21:00:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2023-11-21 21:00:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-21 21:00:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-21 21:00:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0
[2023-11-21 21:00:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1
[2023-11-21 21:00:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2
[2023-11-21 21:00:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2023-11-21 21:00:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2023-11-21 21:00:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2
[2023-11-21 21:00:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-21 21:00:48,387 INFO L240 CfgBuilder]: Building ICFG
[2023-11-21 21:00:48,389 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-21 21:00:49,149 INFO L281 CfgBuilder]: Performing block encoding
[2023-11-21 21:00:49,254 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-21 21:00:49,259 INFO L308 CfgBuilder]: Removed 6 assume(true) statements.
[2023-11-21 21:00:49,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:49 BoogieIcfgContainer
[2023-11-21 21:00:49,262 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-21 21:00:49,266 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-21 21:00:49,266 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-21 21:00:49,269 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-21 21:00:49,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:00:47" (1/3) ...
[2023-11-21 21:00:49,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f404f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:49, skipping insertion in model container
[2023-11-21 21:00:49,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:47" (2/3) ...
[2023-11-21 21:00:49,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f404f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:49, skipping insertion in model container
[2023-11-21 21:00:49,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:49" (3/3) ...
[2023-11-21 21:00:49,274 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c
[2023-11-21 21:00:49,293 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-21 21:00:49,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-21 21:00:49,334 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-21 21:00:49,341 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;@5098bf5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-21 21:00:49,346 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-21 21:00:49,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 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)
[2023-11-21 21:00:49,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-11-21 21:00:49,355 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 21:00:49,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-21 21:00:49,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 21:00:49,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 21:00:49,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1398313579, now seen corresponding path program 1 times
[2023-11-21 21:00:49,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 21:00:49,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283674971]
[2023-11-21 21:00:49,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 21:00:49,374 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
[2023-11-21 21:00:49,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 21:00:49,381 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/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)
[2023-11-21 21:00:49,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/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
[2023-11-21 21:00:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 21:00:49,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-11-21 21:00:49,631 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 21:00:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 21:00:49,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 21:00:49,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 21:00:49,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283674971]
[2023-11-21 21:00:49,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283674971] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 21:00:49,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 21:00:49,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-21 21:00:49,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052300114]
[2023-11-21 21:00:49,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 21:00:49,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-21 21:00:49,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 21:00:49,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-21 21:00:49,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-21 21:00:49,706 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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)
[2023-11-21 21:00:49,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 21:00:49,857 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions.
[2023-11-21 21:00:49,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-21 21:00:49,864 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7
[2023-11-21 21:00:49,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 21:00:49,873 INFO L225 Difference]: With dead ends: 39
[2023-11-21 21:00:49,874 INFO L226 Difference]: Without dead ends: 18
[2023-11-21 21:00:49,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-21 21:00:49,882 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-21 21:00:49,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-21 21:00:49,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2023-11-21 21:00:49,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2023-11-21 21:00:49,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 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)
[2023-11-21 21:00:49,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions.
[2023-11-21 21:00:49,920 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 7
[2023-11-21 21:00:49,921 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 21:00:49,921 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions.
[2023-11-21 21:00:49,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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)
[2023-11-21 21:00:49,922 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions.
[2023-11-21 21:00:49,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-11-21 21:00:49,923 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 21:00:49,924 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 21:00:49,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/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
[2023-11-21 21:00:50,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/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
[2023-11-21 21:00:50,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 21:00:50,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 21:00:50,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1668634532, now seen corresponding path program 1 times
[2023-11-21 21:00:50,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 21:00:50,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1519193353]
[2023-11-21 21:00:50,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 21:00:50,132 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
[2023-11-21 21:00:50,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 21:00:50,162 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/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)
[2023-11-21 21:00:50,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/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
[2023-11-21 21:00:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 21:00:50,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-11-21 21:00:50,419 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 21:00:50,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 21:00:50,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 21:00:50,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 21:00:50,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1519193353]
[2023-11-21 21:00:50,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1519193353] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 21:00:50,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 21:00:50,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-21 21:00:50,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107832220]
[2023-11-21 21:00:50,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 21:00:50,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-21 21:00:50,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 21:00:50,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-21 21:00:50,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-21 21:00:50,692 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 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)
[2023-11-21 21:00:51,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 21:00:51,344 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions.
[2023-11-21 21:00:51,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-11-21 21:00:51,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 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
[2023-11-21 21:00:51,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 21:00:51,346 INFO L225 Difference]: With dead ends: 22
[2023-11-21 21:00:51,346 INFO L226 Difference]: Without dead ends: 18
[2023-11-21 21:00:51,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2023-11-21 21:00:51,348 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 17 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-11-21 21:00:51,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 36 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-11-21 21:00:51,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2023-11-21 21:00:51,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2023-11-21 21:00:51,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 21:00:51,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions.
[2023-11-21 21:00:51,353 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 8
[2023-11-21 21:00:51,353 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 21:00:51,354 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions.
[2023-11-21 21:00:51,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 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)
[2023-11-21 21:00:51,354 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions.
[2023-11-21 21:00:51,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2023-11-21 21:00:51,355 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 21:00:51,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 21:00:51,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-11-21 21:00:51,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/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
[2023-11-21 21:00:51,561 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 21:00:51,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 21:00:51,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2144294218, now seen corresponding path program 1 times
[2023-11-21 21:00:51,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 21:00:51,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750854992]
[2023-11-21 21:00:51,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 21:00:51,564 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
[2023-11-21 21:00:51,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 21:00:51,567 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/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)
[2023-11-21 21:00:51,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/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
[2023-11-21 21:00:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 21:00:51,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-11-21 21:00:51,739 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 21:00:51,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2023-11-21 21:00:51,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16
[2023-11-21 21:00:51,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 21:00:51,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 21:00:51,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 21:00:51,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750854992]
[2023-11-21 21:00:51,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1750854992] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 21:00:51,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 21:00:51,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-21 21:00:51,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584959967]
[2023-11-21 21:00:51,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 21:00:51,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-21 21:00:51,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 21:00:51,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-21 21:00:51,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-21 21:00:51,998 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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)
[2023-11-21 21:00:52,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 21:00:52,171 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions.
[2023-11-21 21:00:52,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-11-21 21:00:52,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 16
[2023-11-21 21:00:52,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 21:00:52,172 INFO L225 Difference]: With dead ends: 18
[2023-11-21 21:00:52,172 INFO L226 Difference]: Without dead ends: 0
[2023-11-21 21:00:52,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-11-21 21:00:52,174 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-21 21:00:52,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-21 21:00:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2023-11-21 21:00:52,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2023-11-21 21:00:52,176 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)
[2023-11-21 21:00:52,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2023-11-21 21:00:52,176 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16
[2023-11-21 21:00:52,176 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 21:00:52,177 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-21 21:00:52,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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)
[2023-11-21 21:00:52,177 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2023-11-21 21:00:52,177 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2023-11-21 21:00:52,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-21 21:00:52,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/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
[2023-11-21 21:00:52,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/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
[2023-11-21 21:00:52,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2023-11-21 21:00:52,438 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 86 103) no Hoare annotation was computed.
[2023-11-21 21:00:52,438 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed.
[2023-11-21 21:00:52,438 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed.
[2023-11-21 21:00:52,438 INFO L895 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: false
[2023-11-21 21:00:52,439 INFO L899 garLoopResultBuilder]: For program point L78-3(lines 78 82) no Hoare annotation was computed.
[2023-11-21 21:00:52,439 INFO L899 garLoopResultBuilder]: For program point __ieee754_sqrtf_returnLabel#1(lines 19 84) no Hoare annotation was computed.
[2023-11-21 21:00:52,439 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed.
[2023-11-21 21:00:52,439 INFO L895 garLoopResultBuilder]: At program point L55-2(lines 55 64) the Hoare annotation is: false
[2023-11-21 21:00:52,439 INFO L899 garLoopResultBuilder]: For program point L97(lines 97 100) no Hoare annotation was computed.
[2023-11-21 21:00:52,440 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed.
[2023-11-21 21:00:52,440 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 44) no Hoare annotation was computed.
[2023-11-21 21:00:52,440 INFO L899 garLoopResultBuilder]: For program point L40-2(lines 40 44) no Hoare annotation was computed.
[2023-11-21 21:00:52,440 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed.
[2023-11-21 21:00:52,440 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed.
[2023-11-21 21:00:52,440 INFO L899 garLoopResultBuilder]: For program point L24-1(lines 24 28) no Hoare annotation was computed.
[2023-11-21 21:00:52,441 INFO L895 garLoopResultBuilder]: At program point L24-2(lines 24 28) the Hoare annotation is: (= |ULTIMATE.start___ieee754_sqrtf_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))
[2023-11-21 21:00:52,441 INFO L899 garLoopResultBuilder]: For program point L24-3(lines 24 28) no Hoare annotation was computed.
[2023-11-21 21:00:52,441 INFO L895 garLoopResultBuilder]: At program point L41-3(lines 41 42) the Hoare annotation is: false
[2023-11-21 21:00:52,441 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2023-11-21 21:00:52,441 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 35) no Hoare annotation was computed.
[2023-11-21 21:00:52,449 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-11-21 21:00:52,451 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-21 21:00:52,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:00:52 BoogieIcfgContainer
[2023-11-21 21:00:52,464 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-21 21:00:52,469 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-21 21:00:52,469 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-21 21:00:52,469 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-21 21:00:52,470 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:49" (3/4) ...
[2023-11-21 21:00:52,472 INFO L137 WitnessPrinter]: Generating witness for correct program
[2023-11-21 21:00:52,483 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges
[2023-11-21 21:00:52,483 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges
[2023-11-21 21:00:52,484 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-11-21 21:00:52,484 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-11-21 21:00:52,599 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/witness.graphml
[2023-11-21 21:00:52,600 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/witness.yml
[2023-11-21 21:00:52,600 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-21 21:00:52,601 INFO L158 Benchmark]: Toolchain (without parser) took 5033.81ms. Allocated memory is still 102.8MB. Free memory was 78.1MB in the beginning and 47.0MB in the end (delta: 31.1MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB.
[2023-11-21 21:00:52,601 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 73.4MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-21 21:00:52,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.55ms. Allocated memory is still 102.8MB. Free memory was 77.8MB in the beginning and 65.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-11-21 21:00:52,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.65ms. Allocated memory is still 102.8MB. Free memory was 65.7MB in the beginning and 63.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-21 21:00:52,602 INFO L158 Benchmark]: Boogie Preprocessor took 110.58ms. Allocated memory is still 102.8MB. Free memory was 63.9MB in the beginning and 61.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-21 21:00:52,603 INFO L158 Benchmark]: RCFGBuilder took 1122.69ms. Allocated memory is still 102.8MB. Free memory was 61.2MB in the beginning and 68.5MB in the end (delta: -7.3MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB.
[2023-11-21 21:00:52,603 INFO L158 Benchmark]: TraceAbstraction took 3198.58ms. Allocated memory is still 102.8MB. Free memory was 67.9MB in the beginning and 52.4MB in the end (delta: 15.5MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB.
[2023-11-21 21:00:52,604 INFO L158 Benchmark]: Witness Printer took 131.66ms. Allocated memory is still 102.8MB. Free memory was 52.4MB in the beginning and 47.0MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2023-11-21 21:00:52,607 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32ms. Allocated memory is still 73.4MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 384.55ms. Allocated memory is still 102.8MB. Free memory was 77.8MB in the beginning and 65.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 72.65ms. Allocated memory is still 102.8MB. Free memory was 65.7MB in the beginning and 63.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 110.58ms. Allocated memory is still 102.8MB. Free memory was 63.9MB in the beginning and 61.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 1122.69ms. Allocated memory is still 102.8MB. Free memory was 61.2MB in the beginning and 68.5MB in the end (delta: -7.3MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB.
* TraceAbstraction took 3198.58ms. Allocated memory is still 102.8MB. Free memory was 67.9MB in the beginning and 52.4MB in the end (delta: 15.5MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB.
* Witness Printer took 131.66ms. Allocated memory is still 102.8MB. Free memory was 52.4MB in the beginning and 47.0MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. 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: 98]: 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, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 30 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 12, 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: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 5 NumberOfFragments, 9 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 5 QuantifiedInterpolants, 117 SizeOfPredicates, 14 NumberOfNonLiveVariables, 130 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
- InvariantResult [Line: 24]: Loop Invariant
Derived loop invariant: null
- InvariantResult [Line: 78]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 55]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 41]: Loop Invariant
Derived loop invariant: 0
RESULT: Ultimate proved your program to be correct!
[2023-11-21 21:00:52,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47164919-562a-4b74-8b4a-5d6eb04068fe/bin/uautomizer-verify-bycVGegfSx/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
Writing output log to file Ultimate.log
Result:
TRUE