./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 63182f13
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --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 d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 17:50:00,919 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 17:50:00,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 17:50:00,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 17:50:00,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 17:50:00,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 17:50:00,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 17:50:00,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 17:50:00,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 17:50:01,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 17:50:01,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 17:50:01,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 17:50:01,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 17:50:01,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 17:50:01,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 17:50:01,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 17:50:01,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 17:50:01,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 17:50:01,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 17:50:01,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 17:50:01,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 17:50:01,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 17:50:01,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 17:50:01,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 17:50:01,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 17:50:01,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 17:50:01,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 17:50:01,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 17:50:01,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 17:50:01,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 17:50:01,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 17:50:01,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 17:50:01,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 17:50:01,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 17:50:01,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 17:50:01,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 17:50:01,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 17:50:01,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 17:50:01,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 17:50:01,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 17:50:01,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 17:50:01,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-13 17:50:01,134 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 17:50:01,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 17:50:01,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 17:50:01,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 17:50:01,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 17:50:01,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 17:50:01,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 17:50:01,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 17:50:01,139 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 17:50:01,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 17:50:01,140 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 17:50:01,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 17:50:01,141 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 17:50:01,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 17:50:01,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 17:50:01,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 17:50:01,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 17:50:01,142 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 17:50:01,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 17:50:01,142 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 17:50:01,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 17:50:01,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 17:50:01,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 17:50:01,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 17:50:01,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:50:01,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 17:50:01,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 17:50:01,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 17:50:01,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 17:50:01,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 17:50:01,147 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 17:50:01,147 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 17:50:01,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 17:50:01,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 17:50:01,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a
[2021-11-13 17:50:01,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 17:50:01,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 17:50:01,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 17:50:01,579 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 17:50:01,580 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 17:50:01,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c
[2021-11-13 17:50:01,653 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/data/a38205e33/3633c351ff6643f18e9a0f1bee098327/FLAG5789a74f1
[2021-11-13 17:50:02,218 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 17:50:02,224 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c
[2021-11-13 17:50:02,254 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/data/a38205e33/3633c351ff6643f18e9a0f1bee098327/FLAG5789a74f1
[2021-11-13 17:50:02,549 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/data/a38205e33/3633c351ff6643f18e9a0f1bee098327
[2021-11-13 17:50:02,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 17:50:02,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 17:50:02,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 17:50:02,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 17:50:02,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 17:50:02,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:50:02" (1/1) ...
[2021-11-13 17:50:02,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76f385e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:02, skipping insertion in model container
[2021-11-13 17:50:02,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:50:02" (1/1) ...
[2021-11-13 17:50:02,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 17:50:02,624 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 17:50:02,885 WARN L228 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_50a65311-7bad-4c6d-aa66-16e4fd925667/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c[3541,3554]
[2021-11-13 17:50:02,889 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:50:02,905 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 17:50:02,950 WARN L228 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_50a65311-7bad-4c6d-aa66-16e4fd925667/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c[3541,3554]
[2021-11-13 17:50:02,951 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:50:02,969 INFO L208 MainTranslator]: Completed translation
[2021-11-13 17:50:02,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:02 WrapperNode
[2021-11-13 17:50:02,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 17:50:02,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 17:50:02,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 17:50:02,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 17:50:02,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:02" (1/1) ...
[2021-11-13 17:50:03,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:02" (1/1) ...
[2021-11-13 17:50:03,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 17:50:03,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 17:50:03,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 17:50:03,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 17:50:03,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:02" (1/1) ...
[2021-11-13 17:50:03,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:02" (1/1) ...
[2021-11-13 17:50:03,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:02" (1/1) ...
[2021-11-13 17:50:03,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:02" (1/1) ...
[2021-11-13 17:50:03,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:02" (1/1) ...
[2021-11-13 17:50:03,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:02" (1/1) ...
[2021-11-13 17:50:03,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:02" (1/1) ...
[2021-11-13 17:50:03,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 17:50:03,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 17:50:03,141 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 17:50:03,141 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 17:50:03,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:02" (1/1) ...
[2021-11-13 17:50:03,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:50:03,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:50:03,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 17:50:03,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 17:50:03,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-13 17:50:03,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 17:50:03,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2021-11-13 17:50:03,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-11-13 17:50:03,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2021-11-13 17:50:03,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 17:50:03,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 17:50:03,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-11-13 17:50:03,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-13 17:50:03,605 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 17:50:03,605 INFO L299 CfgBuilder]: Removed 8 assume(true) statements.
[2021-11-13 17:50:03,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:50:03 BoogieIcfgContainer
[2021-11-13 17:50:03,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 17:50:03,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 17:50:03,610 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 17:50:03,614 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 17:50:03,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:50:02" (1/3) ...
[2021-11-13 17:50:03,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b0abf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:50:03, skipping insertion in model container
[2021-11-13 17:50:03,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:02" (2/3) ...
[2021-11-13 17:50:03,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b0abf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:50:03, skipping insertion in model container
[2021-11-13 17:50:03,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:50:03" (3/3) ...
[2021-11-13 17:50:03,619 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c
[2021-11-13 17:50:03,625 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 17:50:03,626 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-13 17:50:03,708 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 17:50:03,725 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR
[2021-11-13 17:50:03,737 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-13 17:50:03,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 36 states have internal predecessors, (58), 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)
[2021-11-13 17:50:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-11-13 17:50:03,794 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:50:03,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:50:03,795 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:50:03,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:50:03,816 INFO L85 PathProgramCache]: Analyzing trace with hash 627170052, now seen corresponding path program 1 times
[2021-11-13 17:50:03,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:50:03,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371307042]
[2021-11-13 17:50:03,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:50:03,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:50:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:50:04,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:50:04,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:50:04,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371307042]
[2021-11-13 17:50:04,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371307042] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:50:04,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:50:04,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-13 17:50:04,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870226735]
[2021-11-13 17:50:04,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:50:04,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-13 17:50:04,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:50:04,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-13 17:50:04,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:50:04,164 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 36 states have internal predecessors, (58), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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)
[2021-11-13 17:50:04,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:50:04,187 INFO L93 Difference]: Finished difference Result 71 states and 112 transitions.
[2021-11-13 17:50:04,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-13 17:50:04,190 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11
[2021-11-13 17:50:04,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:50:04,230 INFO L225 Difference]: With dead ends: 71
[2021-11-13 17:50:04,231 INFO L226 Difference]: Without dead ends: 33
[2021-11-13 17:50:04,235 INFO L932 BasicCegarLoop]: 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
[2021-11-13 17:50:04,240 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.26ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:50:04,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.26ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time]
[2021-11-13 17:50:04,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2021-11-13 17:50:04,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2021-11-13 17:50:04,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 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)
[2021-11-13 17:50:04,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions.
[2021-11-13 17:50:04,288 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 11
[2021-11-13 17:50:04,289 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:50:04,289 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions.
[2021-11-13 17:50:04,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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)
[2021-11-13 17:50:04,290 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions.
[2021-11-13 17:50:04,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-11-13 17:50:04,291 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:50:04,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:50:04,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-13 17:50:04,292 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:50:04,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:50:04,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1650641455, now seen corresponding path program 1 times
[2021-11-13 17:50:04,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:50:04,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032745605]
[2021-11-13 17:50:04,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:50:04,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:50:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:50:04,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:50:04,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:50:04,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032745605]
[2021-11-13 17:50:04,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032745605] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:50:04,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:50:04,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-13 17:50:04,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826553963]
[2021-11-13 17:50:04,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:50:04,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 17:50:04,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:50:04,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 17:50:04,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 17:50:04,421 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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)
[2021-11-13 17:50:04,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:50:04,455 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions.
[2021-11-13 17:50:04,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 17:50:04,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12
[2021-11-13 17:50:04,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:50:04,458 INFO L225 Difference]: With dead ends: 59
[2021-11-13 17:50:04,460 INFO L226 Difference]: Without dead ends: 33
[2021-11-13 17:50:04,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 17:50:04,464 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.62ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.71ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:50:04,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 4 Unknown, 0 Unchecked, 1.62ms Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 16.71ms Time]
[2021-11-13 17:50:04,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2021-11-13 17:50:04,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2021-11-13 17:50:04,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 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)
[2021-11-13 17:50:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions.
[2021-11-13 17:50:04,481 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 12
[2021-11-13 17:50:04,481 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:50:04,481 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions.
[2021-11-13 17:50:04,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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)
[2021-11-13 17:50:04,483 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions.
[2021-11-13 17:50:04,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-11-13 17:50:04,485 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:50:04,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:50:04,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-11-13 17:50:04,488 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:50:04,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:50:04,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1227406364, now seen corresponding path program 1 times
[2021-11-13 17:50:04,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:50:04,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627311446]
[2021-11-13 17:50:04,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:50:04,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:50:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:50:04,631 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 17:50:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:50:04,725 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 17:50:04,725 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2021-11-13 17:50:04,727 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-11-13 17:50:04,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-11-13 17:50:04,741 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2021-11-13 17:50:04,746 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 17:50:04,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:50:04 BoogieIcfgContainer
[2021-11-13 17:50:04,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-13 17:50:04,803 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-13 17:50:04,804 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-13 17:50:04,804 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-13 17:50:04,805 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:50:03" (3/4) ...
[2021-11-13 17:50:04,809 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2021-11-13 17:50:04,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-13 17:50:04,810 INFO L158 Benchmark]: Toolchain (without parser) took 2256.24ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 59.6MB in the beginning and 89.2MB in the end (delta: -29.6MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB.
[2021-11-13 17:50:04,811 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 98.6MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:50:04,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.44ms. Allocated memory is still 98.6MB. Free memory was 59.4MB in the beginning and 71.3MB in the end (delta: -11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2021-11-13 17:50:04,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.13ms. Allocated memory is still 98.6MB. Free memory was 71.3MB in the beginning and 69.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:50:04,820 INFO L158 Benchmark]: Boogie Preprocessor took 64.77ms. Allocated memory is still 98.6MB. Free memory was 69.2MB in the beginning and 67.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:50:04,821 INFO L158 Benchmark]: RCFGBuilder took 467.21ms. Allocated memory is still 98.6MB. Free memory was 67.7MB in the beginning and 54.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2021-11-13 17:50:04,822 INFO L158 Benchmark]: TraceAbstraction took 1193.02ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 53.4MB in the beginning and 90.4MB in the end (delta: -36.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:50:04,823 INFO L158 Benchmark]: Witness Printer took 5.75ms. Allocated memory is still 132.1MB. Free memory was 90.2MB in the beginning and 89.2MB in the end (delta: 995.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:50:04,834 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.36ms. Allocated memory is still 98.6MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 413.44ms. Allocated memory is still 98.6MB. Free memory was 59.4MB in the beginning and 71.3MB in the end (delta: -11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 90.13ms. Allocated memory is still 98.6MB. Free memory was 71.3MB in the beginning and 69.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 64.77ms. Allocated memory is still 98.6MB. Free memory was 69.2MB in the beginning and 67.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 467.21ms. Allocated memory is still 98.6MB. Free memory was 67.7MB in the beginning and 54.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 1193.02ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 53.4MB in the beginning and 90.4MB in the end (delta: -36.9MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 5.75ms. Allocated memory is still 132.1MB. Free memory was 90.2MB in the beginning and 89.2MB in the end (delta: 995.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 142]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: overapproximation of someBinaryFLOATComparisonOperation at line 113, overapproximation of bitwiseAnd at line 45, overapproximation of someBinaryArithmeticFLOAToperation at line 46.
Possible FailurePath:
[L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06,
two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01,
Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01,
Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01,
Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01;
[L32] static const float zero_log = 0.0;
VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0]
[L134] float x = __VERIFIER_nondet_float();
[L136] EXPR x < 0 && isfinite_float(x)
[L136] CALL, EXPR isfinite_float(x)
[L117] __int32_t ix;
VAL [\old(x)=33554433, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=33554433, zero_log=0]
[L119] ieee_float_shape_type gf_u;
[L120] gf_u.value = (x)
[L121] EXPR gf_u.word
[L121] (ix) = gf_u.word
[L123] ix &= 0x7fffffff
[L124] return (((ix) < 0x7f800000L));
VAL [\old(x)=33554433, \result=1, ix=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=33554433, zero_log=0]
[L136] RET, EXPR isfinite_float(x)
[L136] EXPR x < 0 && isfinite_float(x)
VAL [isfinite_float(x)=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=33554433, x < 0 && isfinite_float(x)=1, zero_log=0]
[L136] COND TRUE (x < 0 && isfinite_float(x))
[L138] CALL, EXPR __ieee754_logf(x)
[L35] float hfsq, f, s, z, R, w, t1, t2, dk;
[L36] __int32_t k, ix, i, j;
VAL [\old(x)=33554433, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=33554433, zero_log=0]
[L39] ieee_float_shape_type gf_u;
[L40] gf_u.value = (x)
[L41] EXPR gf_u.word
[L41] (ix) = gf_u.word
[L44] k = 0
VAL [\old(x)=33554433, ix=0, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=33554433, zero_log=0]
[L45] COND TRUE ((ix & 0x7fffffff) == 0)
[L46] return -two25_log / zero_log;
VAL [\old(x)=33554433, ix=0, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=33554433, zero_log=0]
[L138] RET, EXPR __ieee754_logf(x)
[L138] float res = __ieee754_logf(x);
[L141] CALL, EXPR isnan_float(res)
[L113] return x != x;
VAL [\old(x)=33554434, \result=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=33554434, zero_log=0]
[L141] RET, EXPR isnan_float(res)
[L141] COND TRUE !isnan_float(res)
[L142] reach_error()
VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=33554434, two25_log=33554432, x=33554433, zero_log=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 16.71ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 132 SdHoareTripleChecker+Invalid, 14.97ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 93 mSDtfsCounter, 4 mSolverCounterSat, 2.88ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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
[2021-11-13 17:50:04,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --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 d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 17:50:07,660 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 17:50:07,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 17:50:07,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 17:50:07,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 17:50:07,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 17:50:07,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 17:50:07,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 17:50:07,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 17:50:07,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 17:50:07,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 17:50:07,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 17:50:07,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 17:50:07,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 17:50:07,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 17:50:07,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 17:50:07,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 17:50:07,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 17:50:07,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 17:50:07,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 17:50:07,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 17:50:07,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 17:50:07,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 17:50:07,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 17:50:07,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 17:50:07,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 17:50:07,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 17:50:07,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 17:50:07,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 17:50:07,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 17:50:07,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 17:50:07,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 17:50:07,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 17:50:07,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 17:50:07,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 17:50:07,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 17:50:07,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 17:50:07,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 17:50:07,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 17:50:07,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 17:50:07,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 17:50:07,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2021-11-13 17:50:07,852 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 17:50:07,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 17:50:07,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 17:50:07,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 17:50:07,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 17:50:07,855 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 17:50:07,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 17:50:07,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 17:50:07,857 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 17:50:07,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 17:50:07,858 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 17:50:07,859 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 17:50:07,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 17:50:07,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 17:50:07,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 17:50:07,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 17:50:07,860 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2021-11-13 17:50:07,860 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2021-11-13 17:50:07,860 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 17:50:07,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 17:50:07,861 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 17:50:07,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 17:50:07,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 17:50:07,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 17:50:07,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 17:50:07,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:50:07,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 17:50:07,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 17:50:07,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 17:50:07,863 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2021-11-13 17:50:07,863 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2021-11-13 17:50:07,863 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 17:50:07,863 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 17:50:07,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 17:50:07,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 17:50:07,864 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-13 17:50:07,865 INFO L138 SettingsManager]: * Logic for external solver=AUFBV
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_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a
[2021-11-13 17:50:08,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 17:50:08,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 17:50:08,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 17:50:08,330 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 17:50:08,332 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 17:50:08,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c
[2021-11-13 17:50:08,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/data/059b75a64/f1e423c6dee14031988f3141a4d51996/FLAG394ad0a5c
[2021-11-13 17:50:09,087 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 17:50:09,096 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c
[2021-11-13 17:50:09,104 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/data/059b75a64/f1e423c6dee14031988f3141a4d51996/FLAG394ad0a5c
[2021-11-13 17:50:09,405 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/data/059b75a64/f1e423c6dee14031988f3141a4d51996
[2021-11-13 17:50:09,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 17:50:09,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 17:50:09,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 17:50:09,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 17:50:09,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 17:50:09,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:50:09" (1/1) ...
[2021-11-13 17:50:09,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ef165f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:09, skipping insertion in model container
[2021-11-13 17:50:09,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:50:09" (1/1) ...
[2021-11-13 17:50:09,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 17:50:09,480 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 17:50:09,683 WARN L228 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_50a65311-7bad-4c6d-aa66-16e4fd925667/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c[3541,3554]
[2021-11-13 17:50:09,687 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:50:09,702 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 17:50:09,758 WARN L228 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_50a65311-7bad-4c6d-aa66-16e4fd925667/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c[3541,3554]
[2021-11-13 17:50:09,759 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:50:09,790 INFO L208 MainTranslator]: Completed translation
[2021-11-13 17:50:09,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:09 WrapperNode
[2021-11-13 17:50:09,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 17:50:09,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 17:50:09,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 17:50:09,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 17:50:09,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:09" (1/1) ...
[2021-11-13 17:50:09,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:09" (1/1) ...
[2021-11-13 17:50:09,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 17:50:09,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 17:50:09,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 17:50:09,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 17:50:09,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:09" (1/1) ...
[2021-11-13 17:50:09,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:09" (1/1) ...
[2021-11-13 17:50:09,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:09" (1/1) ...
[2021-11-13 17:50:09,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:09" (1/1) ...
[2021-11-13 17:50:09,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:09" (1/1) ...
[2021-11-13 17:50:09,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:09" (1/1) ...
[2021-11-13 17:50:09,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:09" (1/1) ...
[2021-11-13 17:50:09,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 17:50:09,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 17:50:09,937 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 17:50:09,937 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 17:50:09,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:09" (1/1) ...
[2021-11-13 17:50:09,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:50:09,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:50:09,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 17:50:10,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 17:50:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-11-13 17:50:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 17:50:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4
[2021-11-13 17:50:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2021-11-13 17:50:10,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 17:50:10,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 17:50:10,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4
[2021-11-13 17:50:10,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2021-11-13 17:50:10,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-13 17:50:25,233 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 17:50:25,234 INFO L299 CfgBuilder]: Removed 8 assume(true) statements.
[2021-11-13 17:50:25,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:50:25 BoogieIcfgContainer
[2021-11-13 17:50:25,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 17:50:25,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 17:50:25,238 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 17:50:25,242 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 17:50:25,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:50:09" (1/3) ...
[2021-11-13 17:50:25,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48432b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:50:25, skipping insertion in model container
[2021-11-13 17:50:25,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:50:09" (2/3) ...
[2021-11-13 17:50:25,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48432b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:50:25, skipping insertion in model container
[2021-11-13 17:50:25,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:50:25" (3/3) ...
[2021-11-13 17:50:25,246 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c
[2021-11-13 17:50:25,253 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 17:50:25,254 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-13 17:50:25,326 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 17:50:25,335 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR
[2021-11-13 17:50:25,335 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-13 17:50:25,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 36 states have internal predecessors, (58), 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)
[2021-11-13 17:50:25,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-11-13 17:50:25,363 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:50:25,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:50:25,365 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:50:25,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:50:25,371 INFO L85 PathProgramCache]: Analyzing trace with hash 627170052, now seen corresponding path program 1 times
[2021-11-13 17:50:25,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:50:25,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997800371]
[2021-11-13 17:50:25,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:50:25,388 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:50:25,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:50:25,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:50:25,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-11-13 17:50:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:50:26,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core
[2021-11-13 17:50:26,050 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:50:26,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:50:26,153 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:50:26,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:50:26,226 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:50:26,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997800371]
[2021-11-13 17:50:26,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997800371] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:50:26,228 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:50:26,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-11-13 17:50:26,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437279199]
[2021-11-13 17:50:26,231 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:50:26,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-13 17:50:26,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:50:26,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-13 17:50:26,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:50:26,273 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 36 states have internal predecessors, (58), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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)
[2021-11-13 17:50:26,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:50:26,297 INFO L93 Difference]: Finished difference Result 71 states and 112 transitions.
[2021-11-13 17:50:26,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-13 17:50:26,300 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11
[2021-11-13 17:50:26,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:50:26,312 INFO L225 Difference]: With dead ends: 71
[2021-11-13 17:50:26,312 INFO L226 Difference]: Without dead ends: 33
[2021-11-13 17:50:26,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:50:26,321 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:50:26,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.05ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time]
[2021-11-13 17:50:26,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2021-11-13 17:50:26,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2021-11-13 17:50:26,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 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)
[2021-11-13 17:50:26,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions.
[2021-11-13 17:50:26,365 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 11
[2021-11-13 17:50:26,366 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:50:26,366 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions.
[2021-11-13 17:50:26,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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)
[2021-11-13 17:50:26,367 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions.
[2021-11-13 17:50:26,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-11-13 17:50:26,368 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:50:26,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:50:26,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2021-11-13 17:50:26,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:50:26,594 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:50:26,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:50:26,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1650641455, now seen corresponding path program 1 times
[2021-11-13 17:50:26,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:50:26,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728362726]
[2021-11-13 17:50:26,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:50:26,596 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:50:26,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:50:26,608 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:50:26,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2021-11-13 17:50:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:50:27,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 17:50:27,220 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:50:27,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:50:27,336 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:50:27,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:50:27,446 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:50:27,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728362726]
[2021-11-13 17:50:27,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728362726] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:50:27,447 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:50:27,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2021-11-13 17:50:27,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980239102]
[2021-11-13 17:50:27,448 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:50:27,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 17:50:27,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:50:27,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 17:50:27,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 17:50:27,452 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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)
[2021-11-13 17:50:27,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:50:27,495 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions.
[2021-11-13 17:50:27,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 17:50:27,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12
[2021-11-13 17:50:27,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:50:27,498 INFO L225 Difference]: With dead ends: 59
[2021-11-13 17:50:27,498 INFO L226 Difference]: Without dead ends: 33
[2021-11-13 17:50:27,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 17:50:27,501 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.63ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.05ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:50:27,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 4 Unknown, 0 Unchecked, 1.63ms Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 32.05ms Time]
[2021-11-13 17:50:27,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2021-11-13 17:50:27,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2021-11-13 17:50:27,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 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)
[2021-11-13 17:50:27,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions.
[2021-11-13 17:50:27,512 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 12
[2021-11-13 17:50:27,512 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:50:27,512 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions.
[2021-11-13 17:50:27,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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)
[2021-11-13 17:50:27,513 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions.
[2021-11-13 17:50:27,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-11-13 17:50:27,514 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:50:27,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:50:27,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2021-11-13 17:50:27,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:50:27,740 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:50:27,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:50:27,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1227406364, now seen corresponding path program 1 times
[2021-11-13 17:50:27,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:50:27,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431711206]
[2021-11-13 17:50:27,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:50:27,742 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:50:27,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:50:27,747 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:50:27,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2021-11-13 17:50:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:50:28,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-11-13 17:50:28,368 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:50:29,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:50:29,191 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:50:30,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:50:30,272 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:50:30,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431711206]
[2021-11-13 17:50:30,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431711206] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:50:30,273 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:50:30,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10
[2021-11-13 17:50:30,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238295137]
[2021-11-13 17:50:30,274 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:50:30,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-11-13 17:50:30,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:50:30,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-11-13 17:50:30,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2021-11-13 17:50:30,276 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 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)
[2021-11-13 17:50:32,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:50:32,432 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions.
[2021-11-13 17:50:32,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 17:50:32,551 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 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
[2021-11-13 17:50:32,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:50:32,552 INFO L225 Difference]: With dead ends: 44
[2021-11-13 17:50:32,553 INFO L226 Difference]: Without dead ends: 39
[2021-11-13 17:50:32,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2021-11-13 17:50:32,555 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 14 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2076.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.59ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 2130.07ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:50:32,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 256 Invalid, 38 Unknown, 0 Unchecked, 3.59ms Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 26 Unchecked, 2130.07ms Time]
[2021-11-13 17:50:32,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2021-11-13 17:50:32,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33.
[2021-11-13 17:50:32,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.3125) internal successors, (42), 32 states have internal predecessors, (42), 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)
[2021-11-13 17:50:32,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions.
[2021-11-13 17:50:32,563 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 16
[2021-11-13 17:50:32,564 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:50:32,564 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions.
[2021-11-13 17:50:32,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 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)
[2021-11-13 17:50:32,565 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions.
[2021-11-13 17:50:32,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-11-13 17:50:32,566 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:50:32,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:50:32,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2021-11-13 17:50:32,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:50:32,793 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:50:32,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:50:32,793 INFO L85 PathProgramCache]: Analyzing trace with hash -618100041, now seen corresponding path program 1 times
[2021-11-13 17:50:32,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:50:32,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419973499]
[2021-11-13 17:50:32,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:50:32,795 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:50:32,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:50:32,796 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:50:32,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2021-11-13 17:50:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:50:33,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-11-13 17:50:33,441 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:50:34,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:50:34,450 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:51:02,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:51:02,129 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:51:02,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419973499]
[2021-11-13 17:51:02,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419973499] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:51:02,130 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:51:02,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9
[2021-11-13 17:51:02,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555418203]
[2021-11-13 17:51:02,131 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:51:02,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-11-13 17:51:02,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:51:02,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-11-13 17:51:02,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2021-11-13 17:51:02,133 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 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)
[2021-11-13 17:51:08,280 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 17:51:10,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 17:51:13,195 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 17:51:15,202 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 17:51:17,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 17:51:19,403 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 17:51:20,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 17:51:22,840 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 17:51:24,846 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 17:51:26,944 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 17:51:28,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 17:51:31,088 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 17:51:33,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 17:51:33,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:51:33,096 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions.
[2021-11-13 17:51:33,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-11-13 17:51:33,148 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 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) Word has length 17
[2021-11-13 17:51:33,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:51:33,150 INFO L225 Difference]: With dead ends: 39
[2021-11-13 17:51:33,150 INFO L226 Difference]: Without dead ends: 34
[2021-11-13 17:51:33,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132
[2021-11-13 17:51:33,152 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 16 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28421.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.39ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 28812.95ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:51:33,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 178 Invalid, 76 Unknown, 0 Unchecked, 2.39ms Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 12 Unknown, 9 Unchecked, 28812.95ms Time]
[2021-11-13 17:51:33,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states.
[2021-11-13 17:51:33,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33.
[2021-11-13 17:51:33,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 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)
[2021-11-13 17:51:33,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions.
[2021-11-13 17:51:33,160 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 17
[2021-11-13 17:51:33,160 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:51:33,160 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions.
[2021-11-13 17:51:33,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 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)
[2021-11-13 17:51:33,162 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions.
[2021-11-13 17:51:33,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-11-13 17:51:33,163 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:51:33,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:51:33,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2021-11-13 17:51:33,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:51:33,385 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:51:33,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:51:33,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1989606143, now seen corresponding path program 1 times
[2021-11-13 17:51:33,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:51:33,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743195075]
[2021-11-13 17:51:33,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:51:33,387 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:51:33,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:51:33,388 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:51:33,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2021-11-13 17:51:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:51:33,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-11-13 17:51:33,907 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:51:34,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:51:34,678 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:51:35,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:51:35,834 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:51:35,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743195075]
[2021-11-13 17:51:35,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743195075] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:51:35,834 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:51:35,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10
[2021-11-13 17:51:35,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977203996]
[2021-11-13 17:51:35,835 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:51:35,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-11-13 17:51:35,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:51:35,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-11-13 17:51:35,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2021-11-13 17:51:35,837 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 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)
[2021-11-13 17:51:35,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:51:35,840 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions.
[2021-11-13 17:51:35,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-11-13 17:51:35,841 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 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) Word has length 18
[2021-11-13 17:51:35,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:51:35,841 INFO L225 Difference]: With dead ends: 33
[2021-11-13 17:51:35,841 INFO L226 Difference]: Without dead ends: 0
[2021-11-13 17:51:35,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2021-11-13 17:51:35,843 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.31ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.03ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:51:35,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 39 Invalid, 6 Unknown, 0 Unchecked, 0.31ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 6 Unchecked, 0.03ms Time]
[2021-11-13 17:51:35,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-11-13 17:51:35,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-11-13 17:51:35,850 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)
[2021-11-13 17:51:35,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-11-13 17:51:35,851 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18
[2021-11-13 17:51:35,851 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:51:35,851 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-11-13 17:51:35,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 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)
[2021-11-13 17:51:35,852 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-11-13 17:51:35,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-11-13 17:51:35,855 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-11-13 17:51:35,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2021-11-13 17:51:36,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:51:36,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-11-13 17:51:36,510 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 118 122) no Hoare annotation was computed.
[2021-11-13 17:51:36,510 INFO L854 garLoopResultBuilder]: At program point L118-2(lines 118 122) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start_main_~x~0#1| ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))))
[2021-11-13 17:51:36,510 INFO L858 garLoopResultBuilder]: For program point L118-3(lines 118 122) no Hoare annotation was computed.
[2021-11-13 17:51:36,510 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2021-11-13 17:51:36,510 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2021-11-13 17:51:36,511 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 46) no Hoare annotation was computed.
[2021-11-13 17:51:36,511 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed.
[2021-11-13 17:51:36,511 INFO L858 garLoopResultBuilder]: For program point L136-2(lines 136 145) no Hoare annotation was computed.
[2021-11-13 17:51:36,511 INFO L858 garLoopResultBuilder]: For program point L70(lines 70 86) no Hoare annotation was computed.
[2021-11-13 17:51:36,511 INFO L858 garLoopResultBuilder]: For program point L136-4(lines 136 145) no Hoare annotation was computed.
[2021-11-13 17:51:36,511 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 54 58) no Hoare annotation was computed.
[2021-11-13 17:51:36,511 INFO L854 garLoopResultBuilder]: At program point L54-2(lines 54 58) the Hoare annotation is: false
[2021-11-13 17:51:36,512 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 78) no Hoare annotation was computed.
[2021-11-13 17:51:36,512 INFO L858 garLoopResultBuilder]: For program point L38-1(lines 38 42) no Hoare annotation was computed.
[2021-11-13 17:51:36,512 INFO L854 garLoopResultBuilder]: At program point L38-2(lines 38 42) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start___ieee754_logf_~x#1| ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven))
[2021-11-13 17:51:36,512 INFO L858 garLoopResultBuilder]: For program point L38-3(lines 38 42) no Hoare annotation was computed.
[2021-11-13 17:51:36,512 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 63 67) no Hoare annotation was computed.
[2021-11-13 17:51:36,512 INFO L854 garLoopResultBuilder]: At program point L63-2(lines 63 67) the Hoare annotation is: false
[2021-11-13 17:51:36,512 INFO L858 garLoopResultBuilder]: For program point L63-3(lines 63 67) no Hoare annotation was computed.
[2021-11-13 17:51:36,513 INFO L854 garLoopResultBuilder]: At program point L113(line 113) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|)
[2021-11-13 17:51:36,513 INFO L858 garLoopResultBuilder]: For program point L80(lines 80 85) no Hoare annotation was computed.
[2021-11-13 17:51:36,513 INFO L858 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed.
[2021-11-13 17:51:36,513 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 108) no Hoare annotation was computed.
[2021-11-13 17:51:36,513 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 77) no Hoare annotation was computed.
[2021-11-13 17:51:36,513 INFO L858 garLoopResultBuilder]: For program point L97(lines 97 109) no Hoare annotation was computed.
[2021-11-13 17:51:36,513 INFO L861 garLoopResultBuilder]: At program point L147(lines 127 148) the Hoare annotation is: true
[2021-11-13 17:51:36,513 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2021-11-13 17:51:36,513 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed.
[2021-11-13 17:51:36,514 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 50) no Hoare annotation was computed.
[2021-11-13 17:51:36,514 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 103) no Hoare annotation was computed.
[2021-11-13 17:51:36,514 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2021-11-13 17:51:36,514 INFO L854 garLoopResultBuilder]: At program point L124(lines 116 125) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start_main_~x~0#1| ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))))
[2021-11-13 17:51:36,514 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 144) no Hoare annotation was computed.
[2021-11-13 17:51:36,514 INFO L854 garLoopResultBuilder]: At program point L108(lines 34 110) the Hoare annotation is: (and (exists ((|ULTIMATE.start___ieee754_logf_~x#1| (_ FloatingPoint 8 24))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |ULTIMATE.start___ieee754_logf_~x#1| |ULTIMATE.start___ieee754_logf_~x#1|) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res#1|)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven))
[2021-11-13 17:51:36,514 INFO L858 garLoopResultBuilder]: For program point L51(lines 51 59) no Hoare annotation was computed.
[2021-11-13 17:51:36,515 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 51 59) no Hoare annotation was computed.
[2021-11-13 17:51:36,515 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed.
[2021-11-13 17:51:36,518 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2021-11-13 17:51:36,520 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 17:51:36,535 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,536 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
[2021-11-13 17:51:36,537 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,538 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
[2021-11-13 17:51:36,539 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,540 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,540 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED]
[2021-11-13 17:51:36,540 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED]
[2021-11-13 17:51:36,540 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,541 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,541 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,542 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,542 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED]
[2021-11-13 17:51:36,542 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED]
[2021-11-13 17:51:36,543 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,543 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,544 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,544 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
[2021-11-13 17:51:36,545 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,545 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
[2021-11-13 17:51:36,546 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
[2021-11-13 17:51:36,546 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,547 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
[2021-11-13 17:51:36,547 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:51:36 BoogieIcfgContainer
[2021-11-13 17:51:36,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-13 17:51:36,549 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-13 17:51:36,549 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-13 17:51:36,550 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-13 17:51:36,550 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:50:25" (3/4) ...
[2021-11-13 17:51:36,554 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-11-13 17:51:36,575 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges
[2021-11-13 17:51:36,576 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges
[2021-11-13 17:51:36,577 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2021-11-13 17:51:36,577 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-11-13 17:51:36,611 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))
[2021-11-13 17:51:36,611 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))
[2021-11-13 17:51:36,612 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven
[2021-11-13 17:51:36,612 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start___ieee754_logf_~x#1 : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_logf_~x#1, ULTIMATE.start___ieee754_logf_~x#1), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven
[2021-11-13 17:51:36,613 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == \result
[2021-11-13 17:51:36,643 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/witness.graphml
[2021-11-13 17:51:36,643 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-13 17:51:36,644 INFO L158 Benchmark]: Toolchain (without parser) took 87228.56ms. Allocated memory is still 69.2MB. Free memory was 54.0MB in the beginning and 32.4MB in the end (delta: 21.6MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB.
[2021-11-13 17:51:36,644 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 69.2MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:51:36,645 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.89ms. Allocated memory is still 69.2MB. Free memory was 53.8MB in the beginning and 51.2MB in the end (delta: 2.6MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB.
[2021-11-13 17:51:36,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.36ms. Allocated memory is still 69.2MB. Free memory was 51.2MB in the beginning and 48.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:51:36,646 INFO L158 Benchmark]: Boogie Preprocessor took 63.31ms. Allocated memory is still 69.2MB. Free memory was 48.9MB in the beginning and 47.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:51:36,646 INFO L158 Benchmark]: RCFGBuilder took 15299.21ms. Allocated memory is still 69.2MB. Free memory was 47.2MB in the beginning and 31.8MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2021-11-13 17:51:36,647 INFO L158 Benchmark]: TraceAbstraction took 71310.56ms. Allocated memory is still 69.2MB. Free memory was 31.5MB in the beginning and 37.6MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:51:36,647 INFO L158 Benchmark]: Witness Printer took 94.20ms. Allocated memory is still 69.2MB. Free memory was 37.6MB in the beginning and 32.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2021-11-13 17:51:36,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.25ms. Allocated memory is still 69.2MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 376.89ms. Allocated memory is still 69.2MB. Free memory was 53.8MB in the beginning and 51.2MB in the end (delta: 2.6MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 58.36ms. Allocated memory is still 69.2MB. Free memory was 51.2MB in the beginning and 48.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 63.31ms. Allocated memory is still 69.2MB. Free memory was 48.9MB in the beginning and 47.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 15299.21ms. Allocated memory is still 69.2MB. Free memory was 47.2MB in the beginning and 31.8MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 71310.56ms. Allocated memory is still 69.2MB. Free memory was 31.5MB in the beginning and 37.6MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 94.20ms. Allocated memory is still 69.2MB. Free memory was 37.6MB in the beginning and 32.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor:
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
* 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: 142]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 33.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 12 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 30975.10ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 605 SdHoareTripleChecker+Invalid, 30527.63ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 41 IncrementalHoareTripleChecker+Unchecked, 433 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 172 mSDtfsCounter, 68 mSolverCounterSat, 8.97ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 14 NumberOfFragments, 72 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 33.1s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 138 ConstructedInterpolants, 48 QuantifiedInterpolants, 871 SizeOfPredicates, 25 NumberOfNonLiveVariables, 325 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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: 54]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 113]: Loop Invariant
Derived loop invariant: 1bv32 == \result
- InvariantResult [Line: 63]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 116]: Loop Invariant
[2021-11-13 17:51:36,663 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,664 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
[2021-11-13 17:51:36,664 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,664 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))
- InvariantResult [Line: 34]: Loop Invariant
[2021-11-13 17:51:36,665 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,665 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,665 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED]
[2021-11-13 17:51:36,666 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED]
[2021-11-13 17:51:36,666 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,666 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,667 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,667 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,667 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED]
[2021-11-13 17:51:36,667 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED]
[2021-11-13 17:51:36,668 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,668 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
Derived loop invariant: ((\exists ULTIMATE.start___ieee754_logf_~x#1 : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_logf_~x#1, ULTIMATE.start___ieee754_logf_~x#1), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven
- InvariantResult [Line: 118]: Loop Invariant
[2021-11-13 17:51:36,669 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,669 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
[2021-11-13 17:51:36,669 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,670 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))
- InvariantResult [Line: 38]: Loop Invariant
[2021-11-13 17:51:36,670 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
[2021-11-13 17:51:36,670 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2021-11-13 17:51:36,671 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED]
[2021-11-13 17:51:36,671 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven
- InvariantResult [Line: 127]: Loop Invariant
Derived loop invariant: 1
RESULT: Ultimate proved your program to be correct!
[2021-11-13 17:51:36,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a65311-7bad-4c6d-aa66-16e4fd925667/bin/uautomizer-YU5uOKAj3y/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