./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+newton_1_8.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 38b53e6a
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_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R --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 30996e3a95d093576f36103779b690855817d5b6444d2c5828f5d0db503b2e4f
--- 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-38b53e6
[2022-11-25 15:39:00,091 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-25 15:39:00,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-25 15:39:00,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-25 15:39:00,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-25 15:39:00,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-25 15:39:00,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-25 15:39:00,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-25 15:39:00,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-25 15:39:00,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-25 15:39:00,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-25 15:39:00,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-25 15:39:00,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-25 15:39:00,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-25 15:39:00,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-25 15:39:00,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-25 15:39:00,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-25 15:39:00,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-25 15:39:00,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-25 15:39:00,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-25 15:39:00,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-25 15:39:00,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-25 15:39:00,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-25 15:39:00,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-25 15:39:00,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-25 15:39:00,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-25 15:39:00,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-25 15:39:00,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-25 15:39:00,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-25 15:39:00,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-25 15:39:00,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-25 15:39:00,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-25 15:39:00,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-25 15:39:00,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-25 15:39:00,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-25 15:39:00,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-25 15:39:00,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-25 15:39:00,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-25 15:39:00,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-25 15:39:00,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-25 15:39:00,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-25 15:39:00,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-25 15:39:00,278 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-25 15:39:00,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-25 15:39:00,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-25 15:39:00,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-25 15:39:00,281 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-25 15:39:00,281 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-25 15:39:00,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-25 15:39:00,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-25 15:39:00,283 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-25 15:39:00,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-25 15:39:00,284 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-25 15:39:00,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-25 15:39:00,299 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-25 15:39:00,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-25 15:39:00,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-25 15:39:00,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-25 15:39:00,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-25 15:39:00,301 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-25 15:39:00,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-25 15:39:00,302 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-25 15:39:00,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-25 15:39:00,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-25 15:39:00,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-25 15:39:00,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-25 15:39:00,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-25 15:39:00,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-25 15:39:00,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-25 15:39:00,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-25 15:39:00,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-25 15:39:00,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-25 15:39:00,305 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-25 15:39:00,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-25 15:39:00,306 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2022-11-25 15:39:00,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-11-25 15:39:00,306 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_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30996e3a95d093576f36103779b690855817d5b6444d2c5828f5d0db503b2e4f
[2022-11-25 15:39:00,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-25 15:39:00,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-25 15:39:00,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-25 15:39:00,679 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-25 15:39:00,679 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-25 15:39:00,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/combinations/gcd_4+newton_1_8.i
[2022-11-25 15:39:04,124 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2022-11-25 15:39:04,386 INFO L351 CDTParser]: Found 1 translation units.
[2022-11-25 15:39:04,388 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/sv-benchmarks/c/combinations/gcd_4+newton_1_8.i
[2022-11-25 15:39:04,398 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/data/f4817c5e7/571a6f9131a54360a8f0efa70a347e9a/FLAGd0ae375df
[2022-11-25 15:39:04,415 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/data/f4817c5e7/571a6f9131a54360a8f0efa70a347e9a
[2022-11-25 15:39:04,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-25 15:39:04,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-25 15:39:04,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-25 15:39:04,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-25 15:39:04,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-25 15:39:04,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:39:04" (1/1) ...
[2022-11-25 15:39:04,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a96d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:04, skipping insertion in model container
[2022-11-25 15:39:04,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:39:04" (1/1) ...
[2022-11-25 15:39:04,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-25 15:39:04,463 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-25 15:39:04,645 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_b0203169-12d1-461e-b4d8-3113c39e840f/sv-benchmarks/c/combinations/gcd_4+newton_1_8.i[1224,1237]
[2022-11-25 15:39:04,676 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_b0203169-12d1-461e-b4d8-3113c39e840f/sv-benchmarks/c/combinations/gcd_4+newton_1_8.i[2806,2819]
[2022-11-25 15:39:04,678 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-25 15:39:04,701 INFO L203 MainTranslator]: Completed pre-run
[2022-11-25 15:39:04,732 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_b0203169-12d1-461e-b4d8-3113c39e840f/sv-benchmarks/c/combinations/gcd_4+newton_1_8.i[1224,1237]
[2022-11-25 15:39:04,762 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_b0203169-12d1-461e-b4d8-3113c39e840f/sv-benchmarks/c/combinations/gcd_4+newton_1_8.i[2806,2819]
[2022-11-25 15:39:04,763 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-25 15:39:04,797 INFO L208 MainTranslator]: Completed translation
[2022-11-25 15:39:04,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:04 WrapperNode
[2022-11-25 15:39:04,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-25 15:39:04,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-25 15:39:04,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-25 15:39:04,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-25 15:39:04,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:04" (1/1) ...
[2022-11-25 15:39:04,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:04" (1/1) ...
[2022-11-25 15:39:04,876 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 81
[2022-11-25 15:39:04,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-25 15:39:04,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-25 15:39:04,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-25 15:39:04,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-25 15:39:04,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:04" (1/1) ...
[2022-11-25 15:39:04,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:04" (1/1) ...
[2022-11-25 15:39:04,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:04" (1/1) ...
[2022-11-25 15:39:04,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:04" (1/1) ...
[2022-11-25 15:39:04,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:04" (1/1) ...
[2022-11-25 15:39:04,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:04" (1/1) ...
[2022-11-25 15:39:04,920 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:04" (1/1) ...
[2022-11-25 15:39:04,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:04" (1/1) ...
[2022-11-25 15:39:04,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-25 15:39:04,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-25 15:39:04,926 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-25 15:39:04,927 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-25 15:39:04,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:04" (1/1) ...
[2022-11-25 15:39:04,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-25 15:39:04,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/z3
[2022-11-25 15:39:04,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-25 15:39:04,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-25 15:39:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-25 15:39:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-25 15:39:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-25 15:39:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-25 15:39:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-11-25 15:39:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-11-25 15:39:05,123 INFO L235 CfgBuilder]: Building ICFG
[2022-11-25 15:39:05,127 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-25 15:39:05,401 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-25 15:39:05,409 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-25 15:39:05,409 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-25 15:39:05,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:39:05 BoogieIcfgContainer
[2022-11-25 15:39:05,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-25 15:39:05,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-25 15:39:05,416 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-25 15:39:05,420 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-25 15:39:05,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:39:04" (1/3) ...
[2022-11-25 15:39:05,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18354140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:39:05, skipping insertion in model container
[2022-11-25 15:39:05,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:04" (2/3) ...
[2022-11-25 15:39:05,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18354140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:39:05, skipping insertion in model container
[2022-11-25 15:39:05,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:39:05" (3/3) ...
[2022-11-25 15:39:05,425 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_8.i
[2022-11-25 15:39:05,448 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-25 15:39:05,449 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-11-25 15:39:05,508 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-25 15:39:05,516 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;@67543cb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-25 15:39:05,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-11-25 15:39:05,521 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)
[2022-11-25 15:39:05,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2022-11-25 15:39:05,530 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-25 15:39:05,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 15:39:05,531 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-25 15:39:05,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 15:39:05,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times
[2022-11-25 15:39:05,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 15:39:05,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967699996]
[2022-11-25 15:39:05,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 15:39:05,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 15:39:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 15:39:05,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 15:39:05,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 15:39:05,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967699996]
[2022-11-25 15:39:05,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967699996] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 15:39:05,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-25 15:39:05,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-25 15:39:05,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655826494]
[2022-11-25 15:39:05,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 15:39:05,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-25 15:39:05,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 15:39:05,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-25 15:39:05,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-25 15:39:05,870 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)
[2022-11-25 15:39:05,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-25 15:39:05,919 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions.
[2022-11-25 15:39:05,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-25 15:39:05,923 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
[2022-11-25 15:39:05,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-25 15:39:05,938 INFO L225 Difference]: With dead ends: 57
[2022-11-25 15:39:05,939 INFO L226 Difference]: Without dead ends: 26
[2022-11-25 15:39:05,944 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
[2022-11-25 15:39:05,956 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
[2022-11-25 15:39:05,958 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]
[2022-11-25 15:39:05,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2022-11-25 15:39:06,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2022-11-25 15:39:06,008 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)
[2022-11-25 15:39:06,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions.
[2022-11-25 15:39:06,013 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9
[2022-11-25 15:39:06,014 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-25 15:39:06,014 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions.
[2022-11-25 15:39:06,015 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)
[2022-11-25 15:39:06,016 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions.
[2022-11-25 15:39:06,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2022-11-25 15:39:06,017 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-25 15:39:06,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 15:39:06,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-25 15:39:06,019 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-25 15:39:06,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 15:39:06,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times
[2022-11-25 15:39:06,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 15:39:06,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318487315]
[2022-11-25 15:39:06,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 15:39:06,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 15:39:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-25 15:39:06,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-25 15:39:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-25 15:39:06,156 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-25 15:39:06,156 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2022-11-25 15:39:06,159 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2022-11-25 15:39:06,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2022-11-25 15:39:06,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-25 15:39:06,168 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2022-11-25 15:39:06,173 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-25 15:39:06,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:39:06 BoogieIcfgContainer
[2022-11-25 15:39:06,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-25 15:39:06,215 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-25 15:39:06,215 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-25 15:39:06,216 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-25 15:39:06,216 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:39:05" (3/4) ...
[2022-11-25 15:39:06,220 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2022-11-25 15:39:06,221 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-25 15:39:06,223 INFO L158 Benchmark]: Toolchain (without parser) took 1801.85ms. Allocated memory is still 157.3MB. Free memory was 110.8MB in the beginning and 58.4MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB.
[2022-11-25 15:39:06,224 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 157.3MB. Free memory was 125.6MB in the beginning and 125.5MB in the end (delta: 153.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-25 15:39:06,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.42ms. Allocated memory is still 157.3MB. Free memory was 110.8MB in the beginning and 99.2MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-25 15:39:06,229 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.25ms. Allocated memory is still 157.3MB. Free memory was 99.2MB in the beginning and 97.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-25 15:39:06,232 INFO L158 Benchmark]: Boogie Preprocessor took 46.31ms. Allocated memory is still 157.3MB. Free memory was 97.6MB in the beginning and 96.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-25 15:39:06,233 INFO L158 Benchmark]: RCFGBuilder took 486.51ms. Allocated memory is still 157.3MB. Free memory was 96.1MB in the beginning and 84.4MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-25 15:39:06,234 INFO L158 Benchmark]: TraceAbstraction took 798.29ms. Allocated memory is still 157.3MB. Free memory was 83.6MB in the beginning and 59.0MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
[2022-11-25 15:39:06,234 INFO L158 Benchmark]: Witness Printer took 6.36ms. Allocated memory is still 157.3MB. Free memory was 59.0MB in the beginning and 58.4MB in the end (delta: 579.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-25 15:39:06,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.37ms. Allocated memory is still 157.3MB. Free memory was 125.6MB in the beginning and 125.5MB in the end (delta: 153.8kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 376.42ms. Allocated memory is still 157.3MB. Free memory was 110.8MB in the beginning and 99.2MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 78.25ms. Allocated memory is still 157.3MB. Free memory was 99.2MB in the beginning and 97.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 46.31ms. Allocated memory is still 157.3MB. Free memory was 97.6MB in the beginning and 96.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 486.51ms. Allocated memory is still 157.3MB. Free memory was 96.1MB in the beginning and 84.4MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 798.29ms. Allocated memory is still 157.3MB. Free memory was 83.6MB in the beginning and 59.0MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
* Witness Printer took 6.36ms. Allocated memory is still 157.3MB. Free memory was 59.0MB in the beginning and 58.4MB in the end (delta: 579.9kB). 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: 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 > -2.0f && IN < 2.0f)
[L82] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1]
[L98] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f)
[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: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 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, 0.1s 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
[2022-11-25 15:39:06,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/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_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R --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 30996e3a95d093576f36103779b690855817d5b6444d2c5828f5d0db503b2e4f
--- 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-38b53e6
[2022-11-25 15:39:09,259 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-25 15:39:09,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-25 15:39:09,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-25 15:39:09,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-25 15:39:09,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-25 15:39:09,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-25 15:39:09,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-25 15:39:09,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-25 15:39:09,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-25 15:39:09,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-25 15:39:09,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-25 15:39:09,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-25 15:39:09,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-25 15:39:09,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-25 15:39:09,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-25 15:39:09,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-25 15:39:09,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-25 15:39:09,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-25 15:39:09,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-25 15:39:09,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-25 15:39:09,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-25 15:39:09,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-25 15:39:09,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-25 15:39:09,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-25 15:39:09,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-25 15:39:09,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-25 15:39:09,389 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-25 15:39:09,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-25 15:39:09,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-25 15:39:09,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-25 15:39:09,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-25 15:39:09,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-25 15:39:09,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-25 15:39:09,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-25 15:39:09,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-25 15:39:09,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-25 15:39:09,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-25 15:39:09,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-25 15:39:09,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-25 15:39:09,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-25 15:39:09,413 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2022-11-25 15:39:09,445 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-25 15:39:09,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-25 15:39:09,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-25 15:39:09,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-25 15:39:09,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-25 15:39:09,448 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-25 15:39:09,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-25 15:39:09,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-25 15:39:09,449 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-25 15:39:09,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-25 15:39:09,450 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-25 15:39:09,450 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-25 15:39:09,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-25 15:39:09,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-25 15:39:09,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-25 15:39:09,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-25 15:39:09,451 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-11-25 15:39:09,452 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2022-11-25 15:39:09,452 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2022-11-25 15:39:09,452 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-25 15:39:09,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-25 15:39:09,453 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-25 15:39:09,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-25 15:39:09,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-25 15:39:09,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-25 15:39:09,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-25 15:39:09,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-25 15:39:09,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-25 15:39:09,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-25 15:39:09,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-25 15:39:09,455 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2022-11-25 15:39:09,456 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2022-11-25 15:39:09,456 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-25 15:39:09,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-25 15:39:09,456 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2022-11-25 15:39:09,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-11-25 15:39:09,457 INFO L138 SettingsManager]: * Logic for external solver=AUFBV
[2022-11-25 15:39:09,457 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_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30996e3a95d093576f36103779b690855817d5b6444d2c5828f5d0db503b2e4f
[2022-11-25 15:39:09,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-25 15:39:09,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-25 15:39:09,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-25 15:39:09,956 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-25 15:39:09,958 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-25 15:39:09,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/combinations/gcd_4+newton_1_8.i
[2022-11-25 15:39:13,440 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2022-11-25 15:39:13,664 INFO L351 CDTParser]: Found 1 translation units.
[2022-11-25 15:39:13,665 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/sv-benchmarks/c/combinations/gcd_4+newton_1_8.i
[2022-11-25 15:39:13,673 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/data/c7c10aa8f/778375cce4214b27aba49ae481679471/FLAG52fa93bfe
[2022-11-25 15:39:13,698 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/data/c7c10aa8f/778375cce4214b27aba49ae481679471
[2022-11-25 15:39:13,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-25 15:39:13,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-25 15:39:13,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-25 15:39:13,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-25 15:39:13,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-25 15:39:13,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:39:13" (1/1) ...
[2022-11-25 15:39:13,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f29d3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:13, skipping insertion in model container
[2022-11-25 15:39:13,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:39:13" (1/1) ...
[2022-11-25 15:39:13,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-25 15:39:13,766 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-25 15:39:13,934 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_b0203169-12d1-461e-b4d8-3113c39e840f/sv-benchmarks/c/combinations/gcd_4+newton_1_8.i[1224,1237]
[2022-11-25 15:39:13,962 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_b0203169-12d1-461e-b4d8-3113c39e840f/sv-benchmarks/c/combinations/gcd_4+newton_1_8.i[2806,2819]
[2022-11-25 15:39:13,964 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-25 15:39:13,986 INFO L203 MainTranslator]: Completed pre-run
[2022-11-25 15:39:14,002 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_b0203169-12d1-461e-b4d8-3113c39e840f/sv-benchmarks/c/combinations/gcd_4+newton_1_8.i[1224,1237]
[2022-11-25 15:39:14,014 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_b0203169-12d1-461e-b4d8-3113c39e840f/sv-benchmarks/c/combinations/gcd_4+newton_1_8.i[2806,2819]
[2022-11-25 15:39:14,015 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-25 15:39:14,032 INFO L208 MainTranslator]: Completed translation
[2022-11-25 15:39:14,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:14 WrapperNode
[2022-11-25 15:39:14,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-25 15:39:14,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-25 15:39:14,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-25 15:39:14,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-25 15:39:14,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:14" (1/1) ...
[2022-11-25 15:39:14,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:14" (1/1) ...
[2022-11-25 15:39:14,079 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 78
[2022-11-25 15:39:14,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-25 15:39:14,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-25 15:39:14,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-25 15:39:14,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-25 15:39:14,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:14" (1/1) ...
[2022-11-25 15:39:14,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:14" (1/1) ...
[2022-11-25 15:39:14,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:14" (1/1) ...
[2022-11-25 15:39:14,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:14" (1/1) ...
[2022-11-25 15:39:14,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:14" (1/1) ...
[2022-11-25 15:39:14,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:14" (1/1) ...
[2022-11-25 15:39:14,109 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:14" (1/1) ...
[2022-11-25 15:39:14,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:14" (1/1) ...
[2022-11-25 15:39:14,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-25 15:39:14,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-25 15:39:14,115 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-25 15:39:14,115 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-25 15:39:14,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:14" (1/1) ...
[2022-11-25 15:39:14,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-25 15:39:14,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/z3
[2022-11-25 15:39:14,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-25 15:39:14,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-25 15:39:14,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-25 15:39:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-11-25 15:39:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-25 15:39:14,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-25 15:39:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-11-25 15:39:14,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-11-25 15:39:14,326 INFO L235 CfgBuilder]: Building ICFG
[2022-11-25 15:39:14,331 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-25 15:39:19,700 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-25 15:39:19,717 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-25 15:39:19,717 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-25 15:39:19,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:39:19 BoogieIcfgContainer
[2022-11-25 15:39:19,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-25 15:39:19,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-25 15:39:19,722 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-25 15:39:19,726 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-25 15:39:19,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:39:13" (1/3) ...
[2022-11-25 15:39:19,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a12d715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:39:19, skipping insertion in model container
[2022-11-25 15:39:19,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:14" (2/3) ...
[2022-11-25 15:39:19,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a12d715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:39:19, skipping insertion in model container
[2022-11-25 15:39:19,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:39:19" (3/3) ...
[2022-11-25 15:39:19,730 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_8.i
[2022-11-25 15:39:19,752 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-25 15:39:19,752 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-11-25 15:39:19,805 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-25 15:39:19,813 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;@723af7e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-25 15:39:19,813 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-11-25 15:39:19,818 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)
[2022-11-25 15:39:19,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2022-11-25 15:39:19,826 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-25 15:39:19,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 15:39:19,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-25 15:39:19,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 15:39:19,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times
[2022-11-25 15:39:19,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-25 15:39:19,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911646760]
[2022-11-25 15:39:19,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 15:39:19,849 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
[2022-11-25 15:39:19,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/mathsat
[2022-11-25 15:39:19,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/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)
[2022-11-25 15:39:19,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/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
[2022-11-25 15:39:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 15:39:21,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-11-25 15:39:21,440 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-25 15:39:21,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 15:39:21,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-25 15:39:21,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-25 15:39:21,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911646760]
[2022-11-25 15:39:21,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911646760] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 15:39:21,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-25 15:39:21,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-25 15:39:21,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985132545]
[2022-11-25 15:39:21,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 15:39:21,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-25 15:39:21,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-25 15:39:21,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-25 15:39:21,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-25 15:39:21,536 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)
[2022-11-25 15:39:21,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-25 15:39:21,558 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions.
[2022-11-25 15:39:21,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-25 15:39:21,561 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
[2022-11-25 15:39:21,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-25 15:39:21,570 INFO L225 Difference]: With dead ends: 57
[2022-11-25 15:39:21,570 INFO L226 Difference]: Without dead ends: 26
[2022-11-25 15:39:21,573 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
[2022-11-25 15:39:21,577 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
[2022-11-25 15:39:21,579 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]
[2022-11-25 15:39:21,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2022-11-25 15:39:21,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2022-11-25 15:39:21,616 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)
[2022-11-25 15:39:21,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions.
[2022-11-25 15:39:21,619 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9
[2022-11-25 15:39:21,620 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-25 15:39:21,620 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions.
[2022-11-25 15:39:21,620 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)
[2022-11-25 15:39:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions.
[2022-11-25 15:39:21,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2022-11-25 15:39:21,622 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-25 15:39:21,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 15:39:21,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/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
[2022-11-25 15:39:21,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/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
[2022-11-25 15:39:21,827 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-25 15:39:21,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 15:39:21,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times
[2022-11-25 15:39:21,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-25 15:39:21,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279626090]
[2022-11-25 15:39:21,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 15:39:21,828 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
[2022-11-25 15:39:21,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/mathsat
[2022-11-25 15:39:21,831 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/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)
[2022-11-25 15:39:21,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/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
[2022-11-25 15:39:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-25 15:39:26,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-25 15:39:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-25 15:39:31,962 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2022-11-25 15:39:31,963 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2022-11-25 15:39:31,965 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2022-11-25 15:39:31,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2022-11-25 15:39:32,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2022-11-25 15:39:32,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/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
[2022-11-25 15:39:32,171 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2022-11-25 15:39:32,175 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-25 15:39:32,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:39:32 BoogieIcfgContainer
[2022-11-25 15:39:32,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-25 15:39:32,201 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-25 15:39:32,201 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-25 15:39:32,201 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-25 15:39:32,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:39:19" (3/4) ...
[2022-11-25 15:39:32,203 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2022-11-25 15:39:32,247 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/witness.graphml
[2022-11-25 15:39:32,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-25 15:39:32,248 INFO L158 Benchmark]: Toolchain (without parser) took 18545.11ms. Allocated memory is still 77.6MB. Free memory was 35.1MB in the beginning and 55.8MB in the end (delta: -20.8MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB.
[2022-11-25 15:39:32,248 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 77.6MB. Free memory was 55.8MB in the beginning and 55.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-25 15:39:32,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.03ms. Allocated memory is still 77.6MB. Free memory was 34.8MB in the beginning and 48.0MB in the end (delta: -13.1MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB.
[2022-11-25 15:39:32,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.73ms. Allocated memory is still 77.6MB. Free memory was 48.0MB in the beginning and 46.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-25 15:39:32,250 INFO L158 Benchmark]: Boogie Preprocessor took 33.73ms. Allocated memory is still 77.6MB. Free memory was 46.0MB in the beginning and 44.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-25 15:39:32,250 INFO L158 Benchmark]: RCFGBuilder took 5605.09ms. Allocated memory is still 77.6MB. Free memory was 44.3MB in the beginning and 57.4MB in the end (delta: -13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2022-11-25 15:39:32,251 INFO L158 Benchmark]: TraceAbstraction took 12478.12ms. Allocated memory is still 77.6MB. Free memory was 56.7MB in the beginning and 31.6MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2022-11-25 15:39:32,252 INFO L158 Benchmark]: Witness Printer took 46.53ms. Allocated memory is still 77.6MB. Free memory was 31.2MB in the beginning and 55.8MB in the end (delta: -24.6MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB.
[2022-11-25 15:39:32,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.40ms. Allocated memory is still 77.6MB. Free memory was 55.8MB in the beginning and 55.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 329.03ms. Allocated memory is still 77.6MB. Free memory was 34.8MB in the beginning and 48.0MB in the end (delta: -13.1MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 45.73ms. Allocated memory is still 77.6MB. Free memory was 48.0MB in the beginning and 46.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 33.73ms. Allocated memory is still 77.6MB. Free memory was 46.0MB in the beginning and 44.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 5605.09ms. Allocated memory is still 77.6MB. Free memory was 44.3MB in the beginning and 57.4MB in the end (delta: -13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 12478.12ms. Allocated memory is still 77.6MB. Free memory was 56.7MB in the beginning and 31.6MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Witness Printer took 46.53ms. Allocated memory is still 77.6MB. Free memory was 31.2MB in the beginning and 55.8MB in the end (delta: -24.6MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- CounterExampleResult [Line: 109]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L115] COND FALSE !(__VERIFIER_nondet_int())
[L118] CALL main2()
[L97] float IN = __VERIFIER_nondet_float();
[L98] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f)
[L82] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1]
[L98] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f)
[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)=-0.999997079372406, \result=-0.8418635129928589, x=-0.999997079372406]
[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)=-0.999997079372406, \result=0.5430579781532288, x=-0.999997079372406]
[L100] RET, EXPR fp(IN)
[L100] float x = IN - f(IN)/fp(IN);
[L108] COND TRUE !(x < 0.1)
VAL [IN=-0.999997079372406, x=0.5502305626869202]
[L109] reach_error()
VAL [IN=-0.999997079372406, x=0.5502305626869202]
- 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: 12.4s, 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, 8 GetRequests, 8 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, 6.6s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 1 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 proved your program to be incorrect!
[2022-11-25 15:39:32,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0203169-12d1-461e-b4d8-3113c39e840f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE