./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_1+newton_1_3.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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/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 10b9103f92ac8753860b3b630670be102e95d8a13496ab2027773256e0097c4f
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 17:49:02,924 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 17:49:02,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 17:49:02,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 17:49:02,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 17:49:02,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 17:49:02,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 17:49:02,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 17:49:02,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 17:49:02,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 17:49:02,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 17:49:02,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 17:49:02,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 17:49:02,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 17:49:03,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 17:49:03,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 17:49:03,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 17:49:03,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 17:49:03,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 17:49:03,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 17:49:03,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 17:49:03,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 17:49:03,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 17:49:03,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 17:49:03,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 17:49:03,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 17:49:03,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 17:49:03,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 17:49:03,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 17:49:03,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 17:49:03,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 17:49:03,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 17:49:03,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 17:49:03,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 17:49:03,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 17:49:03,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 17:49:03,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 17:49:03,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 17:49:03,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 17:49:03,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 17:49:03,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 17:49:03,074 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-13 17:49:03,107 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 17:49:03,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 17:49:03,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 17:49:03,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 17:49:03,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 17:49:03,114 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 17:49:03,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 17:49:03,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 17:49:03,116 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 17:49:03,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 17:49:03,117 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 17:49:03,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 17:49:03,117 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 17:49:03,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 17:49:03,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 17:49:03,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 17:49:03,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 17:49:03,119 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 17:49:03,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 17:49:03,119 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 17:49:03,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 17:49:03,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 17:49:03,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 17:49:03,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 17:49:03,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:49:03,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 17:49:03,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 17:49:03,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 17:49:03,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 17:49:03,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 17:49:03,123 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 17:49:03,124 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 17:49:03,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 17:49:03,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 17:49:03,124 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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10b9103f92ac8753860b3b630670be102e95d8a13496ab2027773256e0097c4f
[2021-11-13 17:49:03,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 17:49:03,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 17:49:03,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 17:49:03,541 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 17:49:03,542 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 17:49:03,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/combinations/gcd_1+newton_1_3.i
[2021-11-13 17:49:03,640 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/data/935961916/b611d52176674abcb5e5225b4e43bc15/FLAGa3d6f8764
[2021-11-13 17:49:04,335 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 17:49:04,336 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/sv-benchmarks/c/combinations/gcd_1+newton_1_3.i
[2021-11-13 17:49:04,356 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/data/935961916/b611d52176674abcb5e5225b4e43bc15/FLAGa3d6f8764
[2021-11-13 17:49:04,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/data/935961916/b611d52176674abcb5e5225b4e43bc15
[2021-11-13 17:49:04,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 17:49:04,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 17:49:04,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 17:49:04,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 17:49:04,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 17:49:04,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:49:04" (1/1) ...
[2021-11-13 17:49:04,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e687e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:04, skipping insertion in model container
[2021-11-13 17:49:04,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:49:04" (1/1) ...
[2021-11-13 17:49:04,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 17:49:04,715 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 17:49:04,982 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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/sv-benchmarks/c/combinations/gcd_1+newton_1_3.i[1226,1239]
[2021-11-13 17:49:05,015 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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/sv-benchmarks/c/combinations/gcd_1+newton_1_3.i[2786,2799]
[2021-11-13 17:49:05,017 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:49:05,028 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 17:49:05,042 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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/sv-benchmarks/c/combinations/gcd_1+newton_1_3.i[1226,1239]
[2021-11-13 17:49:05,058 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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/sv-benchmarks/c/combinations/gcd_1+newton_1_3.i[2786,2799]
[2021-11-13 17:49:05,060 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:49:05,076 INFO L208 MainTranslator]: Completed translation
[2021-11-13 17:49:05,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:05 WrapperNode
[2021-11-13 17:49:05,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 17:49:05,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 17:49:05,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 17:49:05,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 17:49:05,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:05" (1/1) ...
[2021-11-13 17:49:05,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:05" (1/1) ...
[2021-11-13 17:49:05,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 17:49:05,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 17:49:05,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 17:49:05,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 17:49:05,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:05" (1/1) ...
[2021-11-13 17:49:05,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:05" (1/1) ...
[2021-11-13 17:49:05,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:05" (1/1) ...
[2021-11-13 17:49:05,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:05" (1/1) ...
[2021-11-13 17:49:05,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:05" (1/1) ...
[2021-11-13 17:49:05,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:05" (1/1) ...
[2021-11-13 17:49:05,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:05" (1/1) ...
[2021-11-13 17:49:05,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 17:49:05,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 17:49:05,196 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 17:49:05,196 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 17:49:05,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:05" (1/1) ...
[2021-11-13 17:49:05,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:49:05,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:49:05,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 17:49:05,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 17:49:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 17:49:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-13 17:49:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 17:49:05,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 17:49:05,589 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 17:49:05,590 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2021-11-13 17:49:05,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:49:05 BoogieIcfgContainer
[2021-11-13 17:49:05,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 17:49:05,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 17:49:05,595 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 17:49:05,600 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 17:49:05,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:49:04" (1/3) ...
[2021-11-13 17:49:05,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df9b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:49:05, skipping insertion in model container
[2021-11-13 17:49:05,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:05" (2/3) ...
[2021-11-13 17:49:05,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df9b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:49:05, skipping insertion in model container
[2021-11-13 17:49:05,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:49:05" (3/3) ...
[2021-11-13 17:49:05,604 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_3.i
[2021-11-13 17:49:05,611 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 17:49:05,611 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2021-11-13 17:49:05,698 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 17:49:05,706 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 17:49:05,707 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2021-11-13 17:49:05,726 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 17:49:05,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-11-13 17:49:05,733 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:49:05,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:49:05,735 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:49:05,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:49:05,747 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times
[2021-11-13 17:49:05,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:49:05,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383554661]
[2021-11-13 17:49:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:49:05,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:49:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:49:06,011 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 17:49:06,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:49:06,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383554661]
[2021-11-13 17:49:06,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383554661] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:49:06,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:49:06,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-13 17:49:06,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303835117]
[2021-11-13 17:49:06,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:49:06,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-13 17:49:06,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:49:06,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-13 17:49:06,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:49:06,074 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 17:49:06,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:49:06,101 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions.
[2021-11-13 17:49:06,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-13 17:49:06,104 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 17:49:06,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:49:06,114 INFO L225 Difference]: With dead ends: 46
[2021-11-13 17:49:06,116 INFO L226 Difference]: Without dead ends: 19
[2021-11-13 17:49:06,121 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 17:49:06,131 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, 2.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:49:06,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 2.70ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time]
[2021-11-13 17:49:06,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2021-11-13 17:49:06,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2021-11-13 17:49:06,175 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 17:49:06,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions.
[2021-11-13 17:49:06,179 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9
[2021-11-13 17:49:06,179 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:49:06,180 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions.
[2021-11-13 17:49:06,180 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 17:49:06,181 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2021-11-13 17:49:06,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-11-13 17:49:06,182 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:49:06,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:49:06,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-13 17:49:06,184 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:49:06,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:49:06,190 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times
[2021-11-13 17:49:06,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:49:06,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672421426]
[2021-11-13 17:49:06,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:49:06,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:49:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:49:06,245 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 17:49:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:49:06,335 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 17:49:06,335 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2021-11-13 17:49:06,337 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2021-11-13 17:49:06,340 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2021-11-13 17:49:06,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-11-13 17:49:06,345 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1]
[2021-11-13 17:49:06,348 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 17:49:06,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:49:06 BoogieIcfgContainer
[2021-11-13 17:49:06,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-13 17:49:06,400 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-13 17:49:06,400 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-13 17:49:06,400 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-13 17:49:06,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:49:05" (3/4) ...
[2021-11-13 17:49:06,408 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2021-11-13 17:49:06,409 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-13 17:49:06,411 INFO L158 Benchmark]: Toolchain (without parser) took 1749.65ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 57.9MB in the beginning and 63.2MB in the end (delta: -5.3MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB.
[2021-11-13 17:49:06,412 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 94.4MB. Free memory was 65.8MB in the beginning and 65.7MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:49:06,417 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.89ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 57.6MB in the beginning and 103.0MB in the end (delta: -45.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-11-13 17:49:06,417 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.88ms. Allocated memory is still 130.0MB. Free memory was 103.0MB in the beginning and 100.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:49:06,421 INFO L158 Benchmark]: Boogie Preprocessor took 43.94ms. Allocated memory is still 130.0MB. Free memory was 100.9MB in the beginning and 99.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:49:06,422 INFO L158 Benchmark]: RCFGBuilder took 396.72ms. Allocated memory is still 130.0MB. Free memory was 99.6MB in the beginning and 88.3MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2021-11-13 17:49:06,423 INFO L158 Benchmark]: TraceAbstraction took 804.17ms. Allocated memory is still 130.0MB. Free memory was 87.6MB in the beginning and 63.9MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
[2021-11-13 17:49:06,423 INFO L158 Benchmark]: Witness Printer took 9.16ms. Allocated memory is still 130.0MB. Free memory was 63.9MB in the beginning and 63.2MB in the end (delta: 727.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:49:06,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.39ms. Allocated memory is still 94.4MB. Free memory was 65.8MB in the beginning and 65.7MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 413.89ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 57.6MB in the beginning and 103.0MB in the end (delta: -45.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 71.88ms. Allocated memory is still 130.0MB. Free memory was 103.0MB in the beginning and 100.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 43.94ms. Allocated memory is still 130.0MB. Free memory was 100.9MB in the beginning and 99.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 396.72ms. Allocated memory is still 130.0MB. Free memory was 99.6MB in the beginning and 88.3MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 804.17ms. Allocated memory is still 130.0MB. Free memory was 87.6MB in the beginning and 63.9MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
* Witness Printer took 9.16ms. Allocated memory is still 130.0MB. Free memory was 63.9MB in the beginning and 63.2MB in the end (delta: 727.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 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 > -0.6f && IN < 0.6f)
[L75] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1]
[L91] RET assume_abort_if_not(IN > -0.6f && IN < 0.6f)
[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, 2.70ms 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 17:49:06,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/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 10b9103f92ac8753860b3b630670be102e95d8a13496ab2027773256e0097c4f
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 17:49:09,470 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 17:49:09,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 17:49:09,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 17:49:09,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 17:49:09,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 17:49:09,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 17:49:09,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 17:49:09,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 17:49:09,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 17:49:09,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 17:49:09,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 17:49:09,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 17:49:09,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 17:49:09,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 17:49:09,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 17:49:09,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 17:49:09,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 17:49:09,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 17:49:09,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 17:49:09,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 17:49:09,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 17:49:09,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 17:49:09,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 17:49:09,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 17:49:09,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 17:49:09,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 17:49:09,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 17:49:09,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 17:49:09,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 17:49:09,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 17:49:09,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 17:49:09,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 17:49:09,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 17:49:09,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 17:49:09,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 17:49:09,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 17:49:09,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 17:49:09,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 17:49:09,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 17:49:09,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 17:49:09,615 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2021-11-13 17:49:09,651 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 17:49:09,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 17:49:09,652 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 17:49:09,652 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 17:49:09,653 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 17:49:09,653 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 17:49:09,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 17:49:09,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 17:49:09,654 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 17:49:09,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 17:49:09,655 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 17:49:09,655 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 17:49:09,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 17:49:09,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 17:49:09,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 17:49:09,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 17:49:09,656 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2021-11-13 17:49:09,657 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2021-11-13 17:49:09,657 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 17:49:09,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 17:49:09,657 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 17:49:09,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 17:49:09,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 17:49:09,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 17:49:09,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 17:49:09,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:49:09,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 17:49:09,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 17:49:09,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 17:49:09,660 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2021-11-13 17:49:09,660 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2021-11-13 17:49:09,660 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 17:49:09,661 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 17:49:09,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 17:49:09,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 17:49:09,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-13 17:49:09,661 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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10b9103f92ac8753860b3b630670be102e95d8a13496ab2027773256e0097c4f
[2021-11-13 17:49:10,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 17:49:10,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 17:49:10,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 17:49:10,229 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 17:49:10,230 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 17:49:10,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/combinations/gcd_1+newton_1_3.i
[2021-11-13 17:49:10,331 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/data/9c0129e91/53e926ca5d844be5a7271ab1a7d844a7/FLAGc8673a6e3
[2021-11-13 17:49:11,034 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 17:49:11,036 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/sv-benchmarks/c/combinations/gcd_1+newton_1_3.i
[2021-11-13 17:49:11,048 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/data/9c0129e91/53e926ca5d844be5a7271ab1a7d844a7/FLAGc8673a6e3
[2021-11-13 17:49:11,350 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/data/9c0129e91/53e926ca5d844be5a7271ab1a7d844a7
[2021-11-13 17:49:11,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 17:49:11,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 17:49:11,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 17:49:11,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 17:49:11,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 17:49:11,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:49:11" (1/1) ...
[2021-11-13 17:49:11,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f957ad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:11, skipping insertion in model container
[2021-11-13 17:49:11,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:49:11" (1/1) ...
[2021-11-13 17:49:11,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 17:49:11,410 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 17:49:11,580 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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/sv-benchmarks/c/combinations/gcd_1+newton_1_3.i[1226,1239]
[2021-11-13 17:49:11,615 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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/sv-benchmarks/c/combinations/gcd_1+newton_1_3.i[2786,2799]
[2021-11-13 17:49:11,617 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:49:11,633 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 17:49:11,650 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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/sv-benchmarks/c/combinations/gcd_1+newton_1_3.i[1226,1239]
[2021-11-13 17:49:11,670 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_4bfafcf7-2f99-482f-8954-44f110b4ac9d/sv-benchmarks/c/combinations/gcd_1+newton_1_3.i[2786,2799]
[2021-11-13 17:49:11,672 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:49:11,738 INFO L208 MainTranslator]: Completed translation
[2021-11-13 17:49:11,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:11 WrapperNode
[2021-11-13 17:49:11,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 17:49:11,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 17:49:11,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 17:49:11,756 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 17:49:11,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:11" (1/1) ...
[2021-11-13 17:49:11,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:11" (1/1) ...
[2021-11-13 17:49:11,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 17:49:11,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 17:49:11,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 17:49:11,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 17:49:11,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:11" (1/1) ...
[2021-11-13 17:49:11,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:11" (1/1) ...
[2021-11-13 17:49:11,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:11" (1/1) ...
[2021-11-13 17:49:11,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:11" (1/1) ...
[2021-11-13 17:49:11,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:11" (1/1) ...
[2021-11-13 17:49:11,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:11" (1/1) ...
[2021-11-13 17:49:11,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:11" (1/1) ...
[2021-11-13 17:49:11,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 17:49:11,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 17:49:11,850 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 17:49:11,850 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 17:49:11,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:11" (1/1) ...
[2021-11-13 17:49:11,860 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:49:11,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:49:11,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 17:49:11,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 17:49:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-11-13 17:49:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 17:49:11,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 17:49:11,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 17:49:19,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 17:49:19,188 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2021-11-13 17:49:19,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:49:19 BoogieIcfgContainer
[2021-11-13 17:49:19,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 17:49:19,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 17:49:19,193 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 17:49:19,197 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 17:49:19,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:49:11" (1/3) ...
[2021-11-13 17:49:19,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c090e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:49:19, skipping insertion in model container
[2021-11-13 17:49:19,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:11" (2/3) ...
[2021-11-13 17:49:19,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c090e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:49:19, skipping insertion in model container
[2021-11-13 17:49:19,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:49:19" (3/3) ...
[2021-11-13 17:49:19,201 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_3.i
[2021-11-13 17:49:19,208 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 17:49:19,208 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2021-11-13 17:49:19,292 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 17:49:19,313 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 17:49:19,314 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2021-11-13 17:49:19,353 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 17:49:19,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-11-13 17:49:19,366 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:49:19,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:49:19,368 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:49:19,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:49:19,384 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times
[2021-11-13 17:49:19,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:49:19,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102901587]
[2021-11-13 17:49:19,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:49:19,398 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:49:19,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:49:19,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:49:19,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-11-13 17:49:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:49:20,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core
[2021-11-13 17:49:20,995 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:49:21,087 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 17:49:21,087 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:49:21,151 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 17:49:21,152 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:49:21,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102901587]
[2021-11-13 17:49:21,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1102901587] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:49:21,153 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:49:21,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-11-13 17:49:21,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927735465]
[2021-11-13 17:49:21,157 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:49:21,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-13 17:49:21,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:49:21,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-13 17:49:21,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:49:21,200 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 17:49:21,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:49:21,222 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions.
[2021-11-13 17:49:21,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-13 17:49:21,225 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 17:49:21,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:49:21,240 INFO L225 Difference]: With dead ends: 46
[2021-11-13 17:49:21,241 INFO L226 Difference]: Without dead ends: 19
[2021-11-13 17:49:21,245 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 17:49:21,253 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, 2.01ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:49:21,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 2.01ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time]
[2021-11-13 17:49:21,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2021-11-13 17:49:21,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2021-11-13 17:49:21,295 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 17:49:21,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions.
[2021-11-13 17:49:21,298 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9
[2021-11-13 17:49:21,298 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:49:21,298 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions.
[2021-11-13 17:49:21,299 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 17:49:21,299 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2021-11-13 17:49:21,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-11-13 17:49:21,300 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:49:21,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:49:21,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2021-11-13 17:49:21,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:49:21,514 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:49:21,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:49:21,515 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times
[2021-11-13 17:49:21,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:49:21,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149571748]
[2021-11-13 17:49:21,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:49:21,517 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:49:21,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:49:21,530 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:49:21,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfafcf7-2f99-482f-8954-44f110b4ac9d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process