./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_1+newton_1_4.i --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_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/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_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/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_efc19b70-7308-458a-8532-9675177b6fed/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 ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 17:54:58,142 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 17:54:58,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 17:54:58,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 17:54:58,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 17:54:58,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 17:54:58,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 17:54:58,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 17:54:58,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 17:54:58,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 17:54:58,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 17:54:58,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 17:54:58,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 17:54:58,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 17:54:58,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 17:54:58,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 17:54:58,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 17:54:58,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 17:54:58,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 17:54:58,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 17:54:58,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 17:54:58,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 17:54:58,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 17:54:58,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 17:54:58,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 17:54:58,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 17:54:58,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 17:54:58,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 17:54:58,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 17:54:58,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 17:54:58,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 17:54:58,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 17:54:58,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 17:54:58,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 17:54:58,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 17:54:58,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 17:54:58,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 17:54:58,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 17:54:58,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 17:54:58,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 17:54:58,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 17:54:58,252 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-13 17:54:58,283 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 17:54:58,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 17:54:58,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 17:54:58,284 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 17:54:58,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 17:54:58,286 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 17:54:58,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 17:54:58,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 17:54:58,287 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 17:54:58,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 17:54:58,288 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 17:54:58,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 17:54:58,289 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 17:54:58,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 17:54:58,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 17:54:58,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 17:54:58,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 17:54:58,291 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 17:54:58,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 17:54:58,291 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 17:54:58,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 17:54:58,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 17:54:58,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 17:54:58,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 17:54:58,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:54:58,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 17:54:58,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 17:54:58,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 17:54:58,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 17:54:58,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 17:54:58,295 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 17:54:58,295 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 17:54:58,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 17:54:58,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 17:54:58,296 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_efc19b70-7308-458a-8532-9675177b6fed/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6
[2021-11-13 17:54:58,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 17:54:58,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 17:54:58,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 17:54:58,726 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 17:54:58,727 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 17:54:58,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/combinations/gcd_1+newton_1_4.i
[2021-11-13 17:54:58,810 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/data/699e54f52/29fd9f0a76f148159d3d5aff51fe8607/FLAG1edd0d77a
[2021-11-13 17:54:59,482 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 17:54:59,483 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i
[2021-11-13 17:54:59,503 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/data/699e54f52/29fd9f0a76f148159d3d5aff51fe8607/FLAG1edd0d77a
[2021-11-13 17:54:59,817 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/data/699e54f52/29fd9f0a76f148159d3d5aff51fe8607
[2021-11-13 17:54:59,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 17:54:59,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 17:54:59,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 17:54:59,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 17:54:59,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 17:54:59,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:54:59" (1/1) ...
[2021-11-13 17:54:59,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aaabd2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:54:59, skipping insertion in model container
[2021-11-13 17:54:59,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:54:59" (1/1) ...
[2021-11-13 17:54:59,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 17:54:59,867 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 17:55:00,135 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_efc19b70-7308-458a-8532-9675177b6fed/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[1226,1239]
[2021-11-13 17:55:00,168 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_efc19b70-7308-458a-8532-9675177b6fed/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[2786,2799]
[2021-11-13 17:55:00,170 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:55:00,181 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 17:55:00,197 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_efc19b70-7308-458a-8532-9675177b6fed/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[1226,1239]
[2021-11-13 17:55:00,213 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_efc19b70-7308-458a-8532-9675177b6fed/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[2786,2799]
[2021-11-13 17:55:00,214 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:55:00,234 INFO L208 MainTranslator]: Completed translation
[2021-11-13 17:55:00,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:00 WrapperNode
[2021-11-13 17:55:00,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 17:55:00,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 17:55:00,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 17:55:00,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 17:55:00,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:00" (1/1) ...
[2021-11-13 17:55:00,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:00" (1/1) ...
[2021-11-13 17:55:00,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 17:55:00,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 17:55:00,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 17:55:00,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 17:55:00,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:00" (1/1) ...
[2021-11-13 17:55:00,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:00" (1/1) ...
[2021-11-13 17:55:00,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:00" (1/1) ...
[2021-11-13 17:55:00,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:00" (1/1) ...
[2021-11-13 17:55:00,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:00" (1/1) ...
[2021-11-13 17:55:00,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:00" (1/1) ...
[2021-11-13 17:55:00,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:00" (1/1) ...
[2021-11-13 17:55:00,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 17:55:00,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 17:55:00,371 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 17:55:00,372 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 17:55:00,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:00" (1/1) ...
[2021-11-13 17:55:00,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:55:00,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:55:00,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 17:55:00,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 17:55:00,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 17:55:00,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-13 17:55:00,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 17:55:00,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 17:55:00,848 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 17:55:00,848 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2021-11-13 17:55:00,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:55:00 BoogieIcfgContainer
[2021-11-13 17:55:00,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 17:55:00,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 17:55:00,853 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 17:55:00,857 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 17:55:00,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:54:59" (1/3) ...
[2021-11-13 17:55:00,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e994af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:55:00, skipping insertion in model container
[2021-11-13 17:55:00,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:00" (2/3) ...
[2021-11-13 17:55:00,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e994af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:55:00, skipping insertion in model container
[2021-11-13 17:55:00,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:55:00" (3/3) ...
[2021-11-13 17:55:00,861 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_4.i
[2021-11-13 17:55:00,867 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 17:55:00,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2021-11-13 17:55:00,954 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 17:55:00,974 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 17:55:00,974 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2021-11-13 17:55:01,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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 17:55:01,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-11-13 17:55:01,011 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:55:01,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:55:01,013 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:55:01,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:55:01,031 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times
[2021-11-13 17:55:01,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:55:01,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955814990]
[2021-11-13 17:55:01,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:55:01,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:55:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:55:01,291 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 17:55:01,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:55:01,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955814990]
[2021-11-13 17:55:01,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955814990] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:55:01,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:55:01,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-13 17:55:01,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523051345]
[2021-11-13 17:55:01,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:55:01,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-13 17:55:01,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:55:01,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-13 17:55:01,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:55:01,347 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:55:01,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:55:01,377 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions.
[2021-11-13 17:55:01,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-13 17:55:01,380 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2021-11-13 17:55:01,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:55:01,391 INFO L225 Difference]: With dead ends: 46
[2021-11-13 17:55:01,392 INFO L226 Difference]: Without dead ends: 19
[2021-11-13 17:55:01,397 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 17:55:01,404 INFO L933 BasicCegarLoop]: 31 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, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.37ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:55:01,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 2.37ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time]
[2021-11-13 17:55:01,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2021-11-13 17:55:01,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2021-11-13 17:55:01,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 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 17:55:01,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions.
[2021-11-13 17:55:01,458 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9
[2021-11-13 17:55:01,458 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:55:01,459 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions.
[2021-11-13 17:55:01,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:55:01,460 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2021-11-13 17:55:01,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-11-13 17:55:01,461 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:55:01,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:55:01,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-13 17:55:01,463 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:55:01,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:55:01,470 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times
[2021-11-13 17:55:01,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:55:01,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706300125]
[2021-11-13 17:55:01,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:55:01,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:55:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:55:01,519 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 17:55:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:55:01,610 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 17:55:01,611 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2021-11-13 17:55:01,613 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2021-11-13 17:55:01,616 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2021-11-13 17:55:01,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-11-13 17:55:01,622 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1]
[2021-11-13 17:55:01,627 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 17:55:01,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:55:01 BoogieIcfgContainer
[2021-11-13 17:55:01,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-13 17:55:01,678 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-13 17:55:01,678 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-13 17:55:01,678 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-13 17:55:01,680 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:55:00" (3/4) ...
[2021-11-13 17:55:01,683 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2021-11-13 17:55:01,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-13 17:55:01,686 INFO L158 Benchmark]: Toolchain (without parser) took 1861.54ms. Allocated memory is still 125.8MB. Free memory was 88.1MB in the beginning and 60.4MB in the end (delta: 27.7MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB.
[2021-11-13 17:55:01,686 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 125.8MB. Free memory was 104.3MB in the beginning and 104.2MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:55:01,690 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.77ms. Allocated memory is still 125.8MB. Free memory was 87.9MB in the beginning and 99.1MB in the end (delta: -11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-11-13 17:55:01,691 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.30ms. Allocated memory is still 125.8MB. Free memory was 99.1MB in the beginning and 96.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:55:01,695 INFO L158 Benchmark]: Boogie Preprocessor took 63.68ms. Allocated memory is still 125.8MB. Free memory was 96.9MB in the beginning and 96.0MB in the end (delta: 906.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:55:01,696 INFO L158 Benchmark]: RCFGBuilder took 479.88ms. Allocated memory is still 125.8MB. Free memory was 96.0MB in the beginning and 85.0MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2021-11-13 17:55:01,696 INFO L158 Benchmark]: TraceAbstraction took 822.52ms. Allocated memory is still 125.8MB. Free memory was 84.4MB in the beginning and 60.7MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
[2021-11-13 17:55:01,697 INFO L158 Benchmark]: Witness Printer took 5.97ms. Allocated memory is still 125.8MB. Free memory was 60.7MB in the beginning and 60.4MB in the end (delta: 387.0kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:55:01,706 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 125.8MB. Free memory was 104.3MB in the beginning and 104.2MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 407.77ms. Allocated memory is still 125.8MB. Free memory was 87.9MB in the beginning and 99.1MB in the end (delta: -11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 69.30ms. Allocated memory is still 125.8MB. Free memory was 99.1MB in the beginning and 96.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 63.68ms. Allocated memory is still 125.8MB. Free memory was 96.9MB in the beginning and 96.0MB in the end (delta: 906.1kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 479.88ms. Allocated memory is still 125.8MB. Free memory was 96.0MB in the beginning and 85.0MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 822.52ms. Allocated memory is still 125.8MB. Free memory was 84.4MB in the beginning and 60.7MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
* Witness Printer took 5.97ms. Allocated memory is still 125.8MB. Free memory was 60.7MB in the beginning and 60.4MB in the end (delta: 387.0kB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93.
Possible FailurePath:
[L108] COND FALSE !(__VERIFIER_nondet_int())
[L111] CALL main2()
[L90] float IN = __VERIFIER_nondet_float();
[L91] CALL assume_abort_if_not(IN > -0.8f && IN < 0.8f)
[L75] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1]
[L91] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f)
[L93] CALL, EXPR f(IN)
[L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f;
VAL [\old(x)=49, x=49]
[L93] RET, EXPR f(IN)
[L93] CALL, EXPR fp(IN)
[L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f;
VAL [\old(x)=49, x=49]
[L93] RET, EXPR fp(IN)
[L93] float x = IN - f(IN)/fp(IN);
[L101] COND TRUE !(x < 0.1)
VAL [IN=49]
[L102] reach_error()
VAL [IN=49]
- UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.00ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.00ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 2.37ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2021-11-13 17:55:01,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/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
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_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/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_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/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_efc19b70-7308-458a-8532-9675177b6fed/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 ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 17:55:04,754 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 17:55:04,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 17:55:04,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 17:55:04,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 17:55:04,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 17:55:04,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 17:55:04,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 17:55:04,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 17:55:04,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 17:55:04,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 17:55:04,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 17:55:04,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 17:55:04,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 17:55:04,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 17:55:04,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 17:55:04,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 17:55:04,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 17:55:04,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 17:55:04,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 17:55:04,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 17:55:04,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 17:55:04,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 17:55:04,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 17:55:04,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 17:55:04,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 17:55:04,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 17:55:04,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 17:55:04,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 17:55:04,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 17:55:04,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 17:55:04,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 17:55:04,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 17:55:04,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 17:55:04,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 17:55:04,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 17:55:04,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 17:55:04,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 17:55:04,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 17:55:04,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 17:55:04,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 17:55:04,938 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2021-11-13 17:55:04,992 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 17:55:04,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 17:55:04,994 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 17:55:04,994 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 17:55:04,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 17:55:04,996 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 17:55:04,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 17:55:04,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 17:55:04,998 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 17:55:04,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 17:55:05,000 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 17:55:05,001 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 17:55:05,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 17:55:05,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 17:55:05,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 17:55:05,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 17:55:05,002 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2021-11-13 17:55:05,003 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2021-11-13 17:55:05,003 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 17:55:05,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 17:55:05,003 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 17:55:05,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 17:55:05,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 17:55:05,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 17:55:05,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 17:55:05,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:55:05,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 17:55:05,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 17:55:05,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 17:55:05,007 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2021-11-13 17:55:05,007 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2021-11-13 17:55:05,007 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 17:55:05,008 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 17:55:05,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 17:55:05,008 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 17:55:05,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-13 17:55:05,009 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_efc19b70-7308-458a-8532-9675177b6fed/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6
[2021-11-13 17:55:05,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 17:55:05,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 17:55:05,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 17:55:05,574 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 17:55:05,577 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 17:55:05,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/combinations/gcd_1+newton_1_4.i
[2021-11-13 17:55:05,670 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/data/6e396b4ad/8c89070fc73a4bf3baf6ec5d2897bc7d/FLAG975d3022d
[2021-11-13 17:55:06,401 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 17:55:06,406 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i
[2021-11-13 17:55:06,415 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/data/6e396b4ad/8c89070fc73a4bf3baf6ec5d2897bc7d/FLAG975d3022d
[2021-11-13 17:55:06,714 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/data/6e396b4ad/8c89070fc73a4bf3baf6ec5d2897bc7d
[2021-11-13 17:55:06,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 17:55:06,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 17:55:06,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 17:55:06,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 17:55:06,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 17:55:06,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:55:06" (1/1) ...
[2021-11-13 17:55:06,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e17d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:06, skipping insertion in model container
[2021-11-13 17:55:06,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:55:06" (1/1) ...
[2021-11-13 17:55:06,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 17:55:06,779 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 17:55:06,957 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_efc19b70-7308-458a-8532-9675177b6fed/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[1226,1239]
[2021-11-13 17:55:07,003 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_efc19b70-7308-458a-8532-9675177b6fed/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[2786,2799]
[2021-11-13 17:55:07,005 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:55:07,027 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 17:55:07,056 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_efc19b70-7308-458a-8532-9675177b6fed/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[1226,1239]
[2021-11-13 17:55:07,079 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_efc19b70-7308-458a-8532-9675177b6fed/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[2786,2799]
[2021-11-13 17:55:07,081 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:55:07,120 INFO L208 MainTranslator]: Completed translation
[2021-11-13 17:55:07,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:07 WrapperNode
[2021-11-13 17:55:07,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 17:55:07,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 17:55:07,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 17:55:07,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 17:55:07,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:07" (1/1) ...
[2021-11-13 17:55:07,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:07" (1/1) ...
[2021-11-13 17:55:07,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 17:55:07,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 17:55:07,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 17:55:07,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 17:55:07,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:07" (1/1) ...
[2021-11-13 17:55:07,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:07" (1/1) ...
[2021-11-13 17:55:07,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:07" (1/1) ...
[2021-11-13 17:55:07,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:07" (1/1) ...
[2021-11-13 17:55:07,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:07" (1/1) ...
[2021-11-13 17:55:07,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:07" (1/1) ...
[2021-11-13 17:55:07,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:07" (1/1) ...
[2021-11-13 17:55:07,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 17:55:07,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 17:55:07,328 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 17:55:07,330 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 17:55:07,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:07" (1/1) ...
[2021-11-13 17:55:07,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:55:07,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:55:07,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 17:55:07,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 17:55:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-11-13 17:55:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 17:55:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 17:55:07,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 17:55:14,656 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 17:55:14,657 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2021-11-13 17:55:14,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:55:14 BoogieIcfgContainer
[2021-11-13 17:55:14,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 17:55:14,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 17:55:14,663 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 17:55:14,667 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 17:55:14,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:55:06" (1/3) ...
[2021-11-13 17:55:14,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@722a2b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:55:14, skipping insertion in model container
[2021-11-13 17:55:14,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:55:07" (2/3) ...
[2021-11-13 17:55:14,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@722a2b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:55:14, skipping insertion in model container
[2021-11-13 17:55:14,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:55:14" (3/3) ...
[2021-11-13 17:55:14,672 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_4.i
[2021-11-13 17:55:14,679 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 17:55:14,679 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2021-11-13 17:55:14,744 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 17:55:14,753 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 17:55:14,754 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2021-11-13 17:55:14,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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 17:55:14,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-11-13 17:55:14,779 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:55:14,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:55:14,781 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:55:14,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:55:14,788 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times
[2021-11-13 17:55:14,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:55:14,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193679497]
[2021-11-13 17:55:14,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:55:14,824 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:55:14,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:55:14,828 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:55:14,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-11-13 17:55:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:55:16,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core
[2021-11-13 17:55:16,428 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:55:16,513 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 17:55:16,513 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:55:16,591 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 17:55:16,592 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:55:16,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193679497]
[2021-11-13 17:55:16,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193679497] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:55:16,594 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:55:16,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-11-13 17:55:16,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091919314]
[2021-11-13 17:55:16,598 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:55:16,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-13 17:55:16,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:55:16,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-13 17:55:16,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:55:16,657 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:55:16,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:55:16,682 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions.
[2021-11-13 17:55:16,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-13 17:55:16,688 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2021-11-13 17:55:16,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:55:16,699 INFO L225 Difference]: With dead ends: 46
[2021-11-13 17:55:16,700 INFO L226 Difference]: Without dead ends: 19
[2021-11-13 17:55:16,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 17:55:16,709 INFO L933 BasicCegarLoop]: 31 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, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.77ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:55:16,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 2.77ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time]
[2021-11-13 17:55:16,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2021-11-13 17:55:16,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2021-11-13 17:55:16,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 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 17:55:16,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions.
[2021-11-13 17:55:16,759 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9
[2021-11-13 17:55:16,760 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:55:16,760 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions.
[2021-11-13 17:55:16,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:55:16,761 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2021-11-13 17:55:16,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-11-13 17:55:16,762 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:55:16,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:55:16,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2021-11-13 17:55:16,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:55:16,966 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:55:16,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:55:16,967 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times
[2021-11-13 17:55:16,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:55:16,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090909891]
[2021-11-13 17:55:16,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:55:16,969 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:55:16,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:55:16,977 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:55:16,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2021-11-13 17:57:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:57:16,049 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 17:58:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:58:08,842 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2021-11-13 17:58:08,842 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2021-11-13 17:58:08,844 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2021-11-13 17:58:08,846 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2021-11-13 17:58:08,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2021-11-13 17:58:09,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:58:09,052 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1]
[2021-11-13 17:58:09,055 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 17:58:09,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:58:09 BoogieIcfgContainer
[2021-11-13 17:58:09,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-13 17:58:09,095 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-13 17:58:09,096 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-13 17:58:09,096 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-13 17:58:09,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:55:14" (3/4) ...
[2021-11-13 17:58:09,099 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2021-11-13 17:58:09,161 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/bin/uautomizer-YU5uOKAj3y/witness.graphml
[2021-11-13 17:58:09,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-13 17:58:09,162 INFO L158 Benchmark]: Toolchain (without parser) took 182441.96ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 34.1MB in the beginning and 55.4MB in the end (delta: -21.3MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB.
[2021-11-13 17:58:09,163 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 56.6MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:58:09,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.26ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 33.9MB in the beginning and 58.6MB in the end (delta: -24.7MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB.
[2021-11-13 17:58:09,165 INFO L158 Benchmark]: Boogie Procedure Inliner took 132.32ms. Allocated memory is still 75.5MB. Free memory was 58.6MB in the beginning and 56.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:58:09,166 INFO L158 Benchmark]: Boogie Preprocessor took 70.42ms. Allocated memory is still 75.5MB. Free memory was 56.8MB in the beginning and 55.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:58:09,166 INFO L158 Benchmark]: RCFGBuilder took 7332.13ms. Allocated memory is still 75.5MB. Free memory was 55.2MB in the beginning and 44.2MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2021-11-13 17:58:09,167 INFO L158 Benchmark]: TraceAbstraction took 174432.01ms. Allocated memory is still 75.5MB. Free memory was 43.7MB in the beginning and 37.2MB in the end (delta: 6.6MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB.
[2021-11-13 17:58:09,168 INFO L158 Benchmark]: Witness Printer took 65.92ms. Allocated memory is still 75.5MB. Free memory was 37.2MB in the beginning and 55.4MB in the end (delta: -18.2MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB.
[2021-11-13 17:58:09,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.44ms. Allocated memory is still 56.6MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 399.26ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 33.9MB in the beginning and 58.6MB in the end (delta: -24.7MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 132.32ms. Allocated memory is still 75.5MB. Free memory was 58.6MB in the beginning and 56.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 70.42ms. Allocated memory is still 75.5MB. Free memory was 56.8MB in the beginning and 55.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 7332.13ms. Allocated memory is still 75.5MB. Free memory was 55.2MB in the beginning and 44.2MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 174432.01ms. Allocated memory is still 75.5MB. Free memory was 43.7MB in the beginning and 37.2MB in the end (delta: 6.6MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB.
* Witness Printer took 65.92ms. Allocated memory is still 75.5MB. Free memory was 37.2MB in the beginning and 55.4MB in the end (delta: -18.2MB). Peak memory consumption was 2.7MB. 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
- CounterExampleResult [Line: 102]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L108] COND FALSE !(__VERIFIER_nondet_int())
[L111] CALL main2()
[L90] float IN = __VERIFIER_nondet_float();
[L91] CALL assume_abort_if_not(IN > -0.8f && IN < 0.8f)
[L75] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1]
[L91] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f)
[L93] CALL, EXPR f(IN)
[L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f;
VAL [\old(x)=-0.7522118091583252, \result=-0.6833093762397766, x=-0.7522118091583252]
[L93] RET, EXPR f(IN)
[L93] CALL, EXPR fp(IN)
[L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f;
VAL [\old(x)=-0.7522118091583252, \result=0.7306801080703735, x=-0.7522118091583252]
[L93] RET, EXPR fp(IN)
[L93] float x = IN - f(IN)/fp(IN);
[L101] COND TRUE !(x < 0.1)
VAL [IN=-0.7522118091583252, x=0.18295717239379883]
[L102] reach_error()
VAL [IN=-0.7522118091583252, x=0.18295717239379883]
- UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 174.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.00ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.00ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 2.77ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 120.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 37 ConjunctsInSsa, 1 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 proved your program to be incorrect!
[2021-11-13 17:58:09,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc19b70-7308-458a-8532-9675177b6fed/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
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE