./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+newton_1_3.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8 --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 44dec35de9ed8408896b6e9513fe1f32435d026e2fe7d21fe3b275ad7f75412d
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-2329fc7
[2022-12-13 17:18:56,233 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-12-13 17:18:56,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-12-13 17:18:56,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-12-13 17:18:56,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-12-13 17:18:56,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-12-13 17:18:56,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-12-13 17:18:56,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-12-13 17:18:56,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-12-13 17:18:56,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-12-13 17:18:56,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-12-13 17:18:56,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-12-13 17:18:56,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-12-13 17:18:56,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-12-13 17:18:56,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-12-13 17:18:56,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-12-13 17:18:56,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-12-13 17:18:56,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-12-13 17:18:56,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-12-13 17:18:56,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-12-13 17:18:56,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-12-13 17:18:56,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-12-13 17:18:56,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-12-13 17:18:56,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-12-13 17:18:56,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-12-13 17:18:56,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-12-13 17:18:56,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-12-13 17:18:56,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-12-13 17:18:56,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-12-13 17:18:56,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-12-13 17:18:56,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-12-13 17:18:56,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-12-13 17:18:56,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-12-13 17:18:56,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-12-13 17:18:56,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-12-13 17:18:56,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-12-13 17:18:56,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-12-13 17:18:56,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-12-13 17:18:56,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-12-13 17:18:56,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-12-13 17:18:56,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-12-13 17:18:56,291 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-12-13 17:18:56,313 INFO L113 SettingsManager]: Loading preferences was successful
[2022-12-13 17:18:56,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-12-13 17:18:56,313 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-12-13 17:18:56,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-12-13 17:18:56,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-12-13 17:18:56,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-12-13 17:18:56,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-12-13 17:18:56,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-12-13 17:18:56,315 INFO L138 SettingsManager]: * Use SBE=true
[2022-12-13 17:18:56,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-12-13 17:18:56,316 INFO L138 SettingsManager]: * sizeof long=4
[2022-12-13 17:18:56,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-12-13 17:18:56,316 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-12-13 17:18:56,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-12-13 17:18:56,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-12-13 17:18:56,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-12-13 17:18:56,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-12-13 17:18:56,317 INFO L138 SettingsManager]: * sizeof long double=12
[2022-12-13 17:18:56,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-12-13 17:18:56,317 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-12-13 17:18:56,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-12-13 17:18:56,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-12-13 17:18:56,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-12-13 17:18:56,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-12-13 17:18:56,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 17:18:56,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-12-13 17:18:56,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-12-13 17:18:56,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-12-13 17:18:56,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-12-13 17:18:56,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-12-13 17:18:56,319 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-12-13 17:18:56,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-12-13 17:18:56,320 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2022-12-13 17:18:56,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-12-13 17:18:56,320 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2022-12-13 17:18:56,320 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44dec35de9ed8408896b6e9513fe1f32435d026e2fe7d21fe3b275ad7f75412d
[2022-12-13 17:18:56,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-12-13 17:18:56,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-12-13 17:18:56,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-12-13 17:18:56,531 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-12-13 17:18:56,531 INFO L275 PluginConnector]: CDTParser initialized
[2022-12-13 17:18:56,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/gcd_4+newton_1_3.i
[2022-12-13 17:18:59,034 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2022-12-13 17:18:59,188 INFO L351 CDTParser]: Found 1 translation units.
[2022-12-13 17:18:59,188 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/sv-benchmarks/c/combinations/gcd_4+newton_1_3.i
[2022-12-13 17:18:59,193 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/data/4dd1d9da8/c503481f4d744011943691cbe741810c/FLAG5359e4ca3
[2022-12-13 17:18:59,610 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/data/4dd1d9da8/c503481f4d744011943691cbe741810c
[2022-12-13 17:18:59,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-12-13 17:18:59,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-12-13 17:18:59,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-12-13 17:18:59,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-12-13 17:18:59,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-12-13 17:18:59,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:18:59" (1/1) ...
[2022-12-13 17:18:59,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16136a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:59, skipping insertion in model container
[2022-12-13 17:18:59,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:18:59" (1/1) ...
[2022-12-13 17:18:59,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-12-13 17:18:59,640 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-12-13 17:18:59,741 WARN L237 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_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/sv-benchmarks/c/combinations/gcd_4+newton_1_3.i[1224,1237]
[2022-12-13 17:18:59,756 WARN L237 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_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/sv-benchmarks/c/combinations/gcd_4+newton_1_3.i[2806,2819]
[2022-12-13 17:18:59,757 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-12-13 17:18:59,765 INFO L203 MainTranslator]: Completed pre-run
[2022-12-13 17:18:59,774 WARN L237 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_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/sv-benchmarks/c/combinations/gcd_4+newton_1_3.i[1224,1237]
[2022-12-13 17:18:59,780 WARN L237 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_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/sv-benchmarks/c/combinations/gcd_4+newton_1_3.i[2806,2819]
[2022-12-13 17:18:59,781 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-12-13 17:18:59,791 INFO L208 MainTranslator]: Completed translation
[2022-12-13 17:18:59,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:59 WrapperNode
[2022-12-13 17:18:59,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-12-13 17:18:59,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-12-13 17:18:59,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-12-13 17:18:59,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-12-13 17:18:59,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:59" (1/1) ...
[2022-12-13 17:18:59,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:59" (1/1) ...
[2022-12-13 17:18:59,818 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 81
[2022-12-13 17:18:59,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-12-13 17:18:59,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-12-13 17:18:59,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-12-13 17:18:59,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-12-13 17:18:59,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:59" (1/1) ...
[2022-12-13 17:18:59,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:59" (1/1) ...
[2022-12-13 17:18:59,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:59" (1/1) ...
[2022-12-13 17:18:59,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:59" (1/1) ...
[2022-12-13 17:18:59,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:59" (1/1) ...
[2022-12-13 17:18:59,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:59" (1/1) ...
[2022-12-13 17:18:59,835 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:59" (1/1) ...
[2022-12-13 17:18:59,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:59" (1/1) ...
[2022-12-13 17:18:59,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-12-13 17:18:59,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-12-13 17:18:59,838 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-12-13 17:18:59,838 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-12-13 17:18:59,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:59" (1/1) ...
[2022-12-13 17:18:59,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 17:18:59,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 17:18:59,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-12-13 17:18:59,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-12-13 17:18:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-12-13 17:18:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-12-13 17:18:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-12-13 17:18:59,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-12-13 17:18:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-12-13 17:18:59,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-12-13 17:18:59,951 INFO L235 CfgBuilder]: Building ICFG
[2022-12-13 17:18:59,953 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-12-13 17:19:00,090 INFO L276 CfgBuilder]: Performing block encoding
[2022-12-13 17:19:00,098 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-12-13 17:19:00,098 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-12-13 17:19:00,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:19:00 BoogieIcfgContainer
[2022-12-13 17:19:00,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-12-13 17:19:00,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-12-13 17:19:00,104 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-12-13 17:19:00,107 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-12-13 17:19:00,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:18:59" (1/3) ...
[2022-12-13 17:19:00,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7965f4c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:19:00, skipping insertion in model container
[2022-12-13 17:19:00,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:59" (2/3) ...
[2022-12-13 17:19:00,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7965f4c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:19:00, skipping insertion in model container
[2022-12-13 17:19:00,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:19:00" (3/3) ...
[2022-12-13 17:19:00,111 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_3.i
[2022-12-13 17:19:00,135 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-12-13 17:19:00,135 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-12-13 17:19:00,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-13 17:19:00,201 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3c7d1fda, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-12-13 17:19:00,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-12-13 17:19:00,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-12-13 17:19:00,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2022-12-13 17:19:00,215 INFO L187 NwaCegarLoop]: Found error trace
[2022-12-13 17:19:00,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 17:19:00,216 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 17:19:00,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 17:19:00,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times
[2022-12-13 17:19:00,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 17:19:00,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098337138]
[2022-12-13 17:19:00,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 17:19:00,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 17:19:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 17:19:00,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 17:19:00,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 17:19:00,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098337138]
[2022-12-13 17:19:00,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098337138] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 17:19:00,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 17:19:00,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 17:19:00,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812947025]
[2022-12-13 17:19:00,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 17:19:00,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-12-13 17:19:00,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 17:19:00,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-12-13 17:19:00,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 17:19:00,394 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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)
[2022-12-13 17:19:00,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 17:19:00,414 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions.
[2022-12-13 17:19:00,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 17:19:00,416 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
[2022-12-13 17:19:00,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 17:19:00,422 INFO L225 Difference]: With dead ends: 57
[2022-12-13 17:19:00,423 INFO L226 Difference]: Without dead ends: 26
[2022-12-13 17:19:00,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 17:19:00,428 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-12-13 17:19:00,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-12-13 17:19:00,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2022-12-13 17:19:00,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2022-12-13 17:19:00,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-12-13 17:19:00,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions.
[2022-12-13 17:19:00,459 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9
[2022-12-13 17:19:00,459 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-12-13 17:19:00,460 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions.
[2022-12-13 17:19:00,460 INFO L496 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)
[2022-12-13 17:19:00,460 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions.
[2022-12-13 17:19:00,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2022-12-13 17:19:00,461 INFO L187 NwaCegarLoop]: Found error trace
[2022-12-13 17:19:00,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 17:19:00,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-12-13 17:19:00,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 17:19:00,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 17:19:00,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times
[2022-12-13 17:19:00,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 17:19:00,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481009313]
[2022-12-13 17:19:00,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 17:19:00,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 17:19:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-12-13 17:19:00,480 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-12-13 17:19:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-12-13 17:19:00,503 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-12-13 17:19:00,504 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2022-12-13 17:19:00,505 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2022-12-13 17:19:00,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2022-12-13 17:19:00,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-12-13 17:19:00,510 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2022-12-13 17:19:00,513 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-12-13 17:19:00,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:19:00 BoogieIcfgContainer
[2022-12-13 17:19:00,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-12-13 17:19:00,530 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-12-13 17:19:00,530 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-12-13 17:19:00,530 INFO L275 PluginConnector]: Witness Printer initialized
[2022-12-13 17:19:00,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:19:00" (3/4) ...
[2022-12-13 17:19:00,533 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2022-12-13 17:19:00,533 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-12-13 17:19:00,534 INFO L158 Benchmark]: Toolchain (without parser) took 919.60ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 89.0MB in the beginning and 109.0MB in the end (delta: -20.0MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB.
[2022-12-13 17:19:00,534 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 66.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-12-13 17:19:00,535 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.92ms. Allocated memory is still 123.7MB. Free memory was 89.0MB in the beginning and 77.4MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2022-12-13 17:19:00,535 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.58ms. Allocated memory is still 123.7MB. Free memory was 77.4MB in the beginning and 75.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-12-13 17:19:00,535 INFO L158 Benchmark]: Boogie Preprocessor took 18.86ms. Allocated memory is still 123.7MB. Free memory was 75.8MB in the beginning and 74.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-12-13 17:19:00,536 INFO L158 Benchmark]: RCFGBuilder took 262.90ms. Allocated memory is still 123.7MB. Free memory was 74.5MB in the beginning and 62.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2022-12-13 17:19:00,536 INFO L158 Benchmark]: TraceAbstraction took 425.56ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 62.3MB in the beginning and 109.0MB in the end (delta: -46.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-12-13 17:19:00,536 INFO L158 Benchmark]: Witness Printer took 3.62ms. Allocated memory is still 148.9MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-12-13 17:19:00,538 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 66.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 176.92ms. Allocated memory is still 123.7MB. Free memory was 89.0MB in the beginning and 77.4MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 25.58ms. Allocated memory is still 123.7MB. Free memory was 77.4MB in the beginning and 75.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 18.86ms. Allocated memory is still 123.7MB. Free memory was 75.8MB in the beginning and 74.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 262.90ms. Allocated memory is still 123.7MB. Free memory was 74.5MB in the beginning and 62.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 425.56ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 62.3MB in the beginning and 109.0MB in the end (delta: -46.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 3.62ms. Allocated memory is still 148.9MB. Free memory is still 109.0MB. 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: 109]: 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 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 100.
Possible FailurePath:
[L115] COND FALSE !(__VERIFIER_nondet_int())
[L118] CALL main2()
[L97] float IN = __VERIFIER_nondet_float();
[L98] CALL assume_abort_if_not(IN > -0.6f && IN < 0.6f)
[L82] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1]
[L98] RET assume_abort_if_not(IN > -0.6f && IN < 0.6f)
[L100] CALL, EXPR f(IN)
[L87] 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)=109, x=109]
[L100] RET, EXPR f(IN)
[L100] CALL, EXPR fp(IN)
[L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f;
VAL [\old(x)=109, x=109]
[L100] RET, EXPR fp(IN)
[L100] float x = IN - f(IN)/fp(IN);
[L108] COND TRUE !(x < 0.1)
VAL [IN=109]
[L109] reach_error()
VAL [IN=109]
- 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 2 procedures, 33 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 40 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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
[2022-12-13 17:19:00,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8 --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 44dec35de9ed8408896b6e9513fe1f32435d026e2fe7d21fe3b275ad7f75412d
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-2329fc7
[2022-12-13 17:19:02,145 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-12-13 17:19:02,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-12-13 17:19:02,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-12-13 17:19:02,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-12-13 17:19:02,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-12-13 17:19:02,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-12-13 17:19:02,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-12-13 17:19:02,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-12-13 17:19:02,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-12-13 17:19:02,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-12-13 17:19:02,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-12-13 17:19:02,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-12-13 17:19:02,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-12-13 17:19:02,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-12-13 17:19:02,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-12-13 17:19:02,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-12-13 17:19:02,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-12-13 17:19:02,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-12-13 17:19:02,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-12-13 17:19:02,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-12-13 17:19:02,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-12-13 17:19:02,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-12-13 17:19:02,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-12-13 17:19:02,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-12-13 17:19:02,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-12-13 17:19:02,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-12-13 17:19:02,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-12-13 17:19:02,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-12-13 17:19:02,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-12-13 17:19:02,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-12-13 17:19:02,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-12-13 17:19:02,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-12-13 17:19:02,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-12-13 17:19:02,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-12-13 17:19:02,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-12-13 17:19:02,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-12-13 17:19:02,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-12-13 17:19:02,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-12-13 17:19:02,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-12-13 17:19:02,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-12-13 17:19:02,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2022-12-13 17:19:02,226 INFO L113 SettingsManager]: Loading preferences was successful
[2022-12-13 17:19:02,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-12-13 17:19:02,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-12-13 17:19:02,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-12-13 17:19:02,228 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-12-13 17:19:02,228 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-12-13 17:19:02,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-12-13 17:19:02,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-12-13 17:19:02,229 INFO L138 SettingsManager]: * Use SBE=true
[2022-12-13 17:19:02,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-12-13 17:19:02,229 INFO L138 SettingsManager]: * sizeof long=4
[2022-12-13 17:19:02,230 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-12-13 17:19:02,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-12-13 17:19:02,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-12-13 17:19:02,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-12-13 17:19:02,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-12-13 17:19:02,231 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-12-13 17:19:02,231 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2022-12-13 17:19:02,231 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2022-12-13 17:19:02,231 INFO L138 SettingsManager]: * sizeof long double=12
[2022-12-13 17:19:02,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-12-13 17:19:02,231 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-12-13 17:19:02,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-12-13 17:19:02,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-12-13 17:19:02,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-12-13 17:19:02,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-12-13 17:19:02,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 17:19:02,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-12-13 17:19:02,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-12-13 17:19:02,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-12-13 17:19:02,233 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2022-12-13 17:19:02,233 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2022-12-13 17:19:02,234 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-12-13 17:19:02,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-12-13 17:19:02,234 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2022-12-13 17:19:02,234 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-12-13 17:19:02,234 INFO L138 SettingsManager]: * Logic for external solver=AUFBV
[2022-12-13 17:19:02,235 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2022-12-13 17:19:02,235 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44dec35de9ed8408896b6e9513fe1f32435d026e2fe7d21fe3b275ad7f75412d
[2022-12-13 17:19:02,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-12-13 17:19:02,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-12-13 17:19:02,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-12-13 17:19:02,487 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-12-13 17:19:02,488 INFO L275 PluginConnector]: CDTParser initialized
[2022-12-13 17:19:02,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/gcd_4+newton_1_3.i
[2022-12-13 17:19:05,112 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2022-12-13 17:19:05,279 INFO L351 CDTParser]: Found 1 translation units.
[2022-12-13 17:19:05,279 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/sv-benchmarks/c/combinations/gcd_4+newton_1_3.i
[2022-12-13 17:19:05,286 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/data/5f01379c2/a0636a7a06ee43798bab65dada3d6dff/FLAG569180781
[2022-12-13 17:19:05,300 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/data/5f01379c2/a0636a7a06ee43798bab65dada3d6dff
[2022-12-13 17:19:05,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-12-13 17:19:05,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-12-13 17:19:05,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-12-13 17:19:05,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-12-13 17:19:05,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-12-13 17:19:05,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:19:05" (1/1) ...
[2022-12-13 17:19:05,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78b9031f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:19:05, skipping insertion in model container
[2022-12-13 17:19:05,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:19:05" (1/1) ...
[2022-12-13 17:19:05,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-12-13 17:19:05,334 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-12-13 17:19:05,481 WARN L237 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_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/sv-benchmarks/c/combinations/gcd_4+newton_1_3.i[1224,1237]
[2022-12-13 17:19:05,504 WARN L237 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_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/sv-benchmarks/c/combinations/gcd_4+newton_1_3.i[2806,2819]
[2022-12-13 17:19:05,506 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-12-13 17:19:05,518 INFO L203 MainTranslator]: Completed pre-run
[2022-12-13 17:19:05,532 WARN L237 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_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/sv-benchmarks/c/combinations/gcd_4+newton_1_3.i[1224,1237]
[2022-12-13 17:19:05,541 WARN L237 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_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/sv-benchmarks/c/combinations/gcd_4+newton_1_3.i[2806,2819]
[2022-12-13 17:19:05,542 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-12-13 17:19:05,557 INFO L208 MainTranslator]: Completed translation
[2022-12-13 17:19:05,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:19:05 WrapperNode
[2022-12-13 17:19:05,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-12-13 17:19:05,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-12-13 17:19:05,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-12-13 17:19:05,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-12-13 17:19:05,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:19:05" (1/1) ...
[2022-12-13 17:19:05,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:19:05" (1/1) ...
[2022-12-13 17:19:05,588 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 78
[2022-12-13 17:19:05,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-12-13 17:19:05,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-12-13 17:19:05,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-12-13 17:19:05,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-12-13 17:19:05,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:19:05" (1/1) ...
[2022-12-13 17:19:05,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:19:05" (1/1) ...
[2022-12-13 17:19:05,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:19:05" (1/1) ...
[2022-12-13 17:19:05,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:19:05" (1/1) ...
[2022-12-13 17:19:05,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:19:05" (1/1) ...
[2022-12-13 17:19:05,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:19:05" (1/1) ...
[2022-12-13 17:19:05,619 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:19:05" (1/1) ...
[2022-12-13 17:19:05,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:19:05" (1/1) ...
[2022-12-13 17:19:05,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-12-13 17:19:05,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-12-13 17:19:05,624 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-12-13 17:19:05,624 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-12-13 17:19:05,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:19:05" (1/1) ...
[2022-12-13 17:19:05,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 17:19:05,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 17:19:05,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-12-13 17:19:05,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-12-13 17:19:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-12-13 17:19:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-12-13 17:19:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-12-13 17:19:05,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-12-13 17:19:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-12-13 17:19:05,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-12-13 17:19:05,760 INFO L235 CfgBuilder]: Building ICFG
[2022-12-13 17:19:05,762 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-12-13 17:19:12,058 INFO L276 CfgBuilder]: Performing block encoding
[2022-12-13 17:19:12,064 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-12-13 17:19:12,064 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-12-13 17:19:12,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:19:12 BoogieIcfgContainer
[2022-12-13 17:19:12,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-12-13 17:19:12,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-12-13 17:19:12,068 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-12-13 17:19:12,070 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-12-13 17:19:12,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:19:05" (1/3) ...
[2022-12-13 17:19:12,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8661d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:19:12, skipping insertion in model container
[2022-12-13 17:19:12,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:19:05" (2/3) ...
[2022-12-13 17:19:12,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8661d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:19:12, skipping insertion in model container
[2022-12-13 17:19:12,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:19:12" (3/3) ...
[2022-12-13 17:19:12,073 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_3.i
[2022-12-13 17:19:12,088 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-12-13 17:19:12,088 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-12-13 17:19:12,121 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-13 17:19:12,126 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@79895130, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-12-13 17:19:12,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-12-13 17:19:12,129 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-12-13 17:19:12,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2022-12-13 17:19:12,135 INFO L187 NwaCegarLoop]: Found error trace
[2022-12-13 17:19:12,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 17:19:12,139 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 17:19:12,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 17:19:12,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times
[2022-12-13 17:19:12,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 17:19:12,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601140729]
[2022-12-13 17:19:12,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 17:19:12,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 17:19:12,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/mathsat
[2022-12-13 17:19:12,153 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 17:19:12,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2022-12-13 17:19:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 17:19:13,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-12-13 17:19:13,267 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 17:19:13,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 17:19:13,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 17:19:13,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 17:19:13,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601140729]
[2022-12-13 17:19:13,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601140729] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 17:19:13,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 17:19:13,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 17:19:13,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278514436]
[2022-12-13 17:19:13,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 17:19:13,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-12-13 17:19:13,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 17:19:13,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-12-13 17:19:13,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 17:19:13,307 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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)
[2022-12-13 17:19:13,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 17:19:13,322 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions.
[2022-12-13 17:19:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 17:19:13,324 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
[2022-12-13 17:19:13,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 17:19:13,329 INFO L225 Difference]: With dead ends: 57
[2022-12-13 17:19:13,329 INFO L226 Difference]: Without dead ends: 26
[2022-12-13 17:19:13,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 17:19:13,335 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-12-13 17:19:13,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-12-13 17:19:13,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2022-12-13 17:19:13,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2022-12-13 17:19:13,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-12-13 17:19:13,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions.
[2022-12-13 17:19:13,362 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9
[2022-12-13 17:19:13,362 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-12-13 17:19:13,362 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions.
[2022-12-13 17:19:13,363 INFO L496 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)
[2022-12-13 17:19:13,363 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions.
[2022-12-13 17:19:13,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2022-12-13 17:19:13,363 INFO L187 NwaCegarLoop]: Found error trace
[2022-12-13 17:19:13,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 17:19:13,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2022-12-13 17:19:13,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 17:19:13,566 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 17:19:13,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 17:19:13,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times
[2022-12-13 17:19:13,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 17:19:13,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408208249]
[2022-12-13 17:19:13,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 17:19:13,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 17:19:13,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/mathsat
[2022-12-13 17:19:13,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 17:19:13,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80cdd44-8a59-4cd2-bfb2-c88dc49b8bdc/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process