./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 826ab2ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89dff477769dad0aa6457e2937a274d22cdfac537ecc3260d5e7568cec79996c
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-826ab2b
[2024-11-14 04:40:17,160 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-14 04:40:17,248 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf
[2024-11-14 04:40:17,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-14 04:40:17,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-14 04:40:17,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-14 04:40:17,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-14 04:40:17,294 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-14 04:40:17,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-14 04:40:17,295 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-14 04:40:17,295 INFO L153 SettingsManager]: * User list type=DISABLED
[2024-11-14 04:40:17,295 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2024-11-14 04:40:17,295 INFO L153 SettingsManager]: * Explicit value domain=true
[2024-11-14 04:40:17,296 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2024-11-14 04:40:17,296 INFO L153 SettingsManager]: * Octagon Domain=false
[2024-11-14 04:40:17,297 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain
[2024-11-14 04:40:17,297 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true
[2024-11-14 04:40:17,297 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true
[2024-11-14 04:40:17,297 INFO L153 SettingsManager]: * Interval Domain=false
[2024-11-14 04:40:17,297 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults:
[2024-11-14 04:40:17,297 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer
[2024-11-14 04:40:17,297 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC
[2024-11-14 04:40:17,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-14 04:40:17,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-14 04:40:17,298 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-14 04:40:17,298 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-14 04:40:17,298 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-14 04:40:17,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-14 04:40:17,299 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-14 04:40:17,299 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-14 04:40:17,299 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-14 04:40:17,300 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-14 04:40:17,300 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-14 04:40:17,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-14 04:40:17,300 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-14 04:40:17,300 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-14 04:40:17,300 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-14 04:40:17,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-14 04:40:17,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-14 04:40:17,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-14 04:40:17,302 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-14 04:40:17,302 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-14 04:40:17,302 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN
[2024-11-14 04:40:17,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-14 04:40:17,302 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-14 04:40:17,302 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE
[2024-11-14 04:40:17,302 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-14 04:40:17,302 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES
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_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
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 -> Taipan
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 -> 89dff477769dad0aa6457e2937a274d22cdfac537ecc3260d5e7568cec79996c
[2024-11-14 04:40:17,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-14 04:40:17,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-14 04:40:17,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-14 04:40:17,642 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-14 04:40:17,642 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-14 04:40:17,643 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c
Unable to find full path for "g++"
[2024-11-14 04:40:19,398 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-14 04:40:19,712 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-14 04:40:19,714 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c
[2024-11-14 04:40:19,723 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/data/ec7d5cee9/c740f4c4874146a48db380c720e150fc/FLAGe73a4d90c
[2024-11-14 04:40:19,744 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/data/ec7d5cee9/c740f4c4874146a48db380c720e150fc
[2024-11-14 04:40:19,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-14 04:40:19,749 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-14 04:40:19,751 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-14 04:40:19,751 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-14 04:40:19,755 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-14 04:40:19,756 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:40:19" (1/1) ...
[2024-11-14 04:40:19,757 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a695d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:19, skipping insertion in model container
[2024-11-14 04:40:19,757 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:40:19" (1/1) ...
[2024-11-14 04:40:19,774 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-14 04:40:19,953 WARN L250 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_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c[986,999]
[2024-11-14 04:40:19,958 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-14 04:40:19,968 INFO L200 MainTranslator]: Completed pre-run
[2024-11-14 04:40:19,984 WARN L250 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_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c[986,999]
[2024-11-14 04:40:19,987 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-14 04:40:20,003 INFO L204 MainTranslator]: Completed translation
[2024-11-14 04:40:20,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:20 WrapperNode
[2024-11-14 04:40:20,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-14 04:40:20,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-14 04:40:20,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-14 04:40:20,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-14 04:40:20,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:20" (1/1) ...
[2024-11-14 04:40:20,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:20" (1/1) ...
[2024-11-14 04:40:20,035 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43
[2024-11-14 04:40:20,035 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-14 04:40:20,036 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-14 04:40:20,036 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-14 04:40:20,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-14 04:40:20,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:20" (1/1) ...
[2024-11-14 04:40:20,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:20" (1/1) ...
[2024-11-14 04:40:20,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:20" (1/1) ...
[2024-11-14 04:40:20,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:20" (1/1) ...
[2024-11-14 04:40:20,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:20" (1/1) ...
[2024-11-14 04:40:20,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:20" (1/1) ...
[2024-11-14 04:40:20,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:20" (1/1) ...
[2024-11-14 04:40:20,051 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:20" (1/1) ...
[2024-11-14 04:40:20,058 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-14 04:40:20,058 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-14 04:40:20,058 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-14 04:40:20,059 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-14 04:40:20,059 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:20" (1/1) ...
[2024-11-14 04:40:20,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-14 04:40:20,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 04:40:20,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2024-11-14 04:40:20,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2024-11-14 04:40:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-14 04:40:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2024-11-14 04:40:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-14 04:40:20,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-14 04:40:20,197 INFO L238 CfgBuilder]: Building ICFG
[2024-11-14 04:40:20,199 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-14 04:40:20,322 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-14 04:40:20,322 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-14 04:40:20,351 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-14 04:40:20,352 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-14 04:40:20,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:40:20 BoogieIcfgContainer
[2024-11-14 04:40:20,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-14 04:40:20,355 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-14 04:40:20,356 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-14 04:40:20,361 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-14 04:40:20,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:40:19" (1/3) ...
[2024-11-14 04:40:20,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c56091d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:40:20, skipping insertion in model container
[2024-11-14 04:40:20,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:20" (2/3) ...
[2024-11-14 04:40:20,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c56091d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:40:20, skipping insertion in model container
[2024-11-14 04:40:20,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:40:20" (3/3) ...
[2024-11-14 04:40:20,365 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.v+cfa-reducer.c
[2024-11-14 04:40:20,382 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-14 04:40:20,384 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG gsv2008.c.i.v+cfa-reducer.c that has 1 procedures, 9 locations, 1 initial locations, 0 loop locations, and 1 error locations.
[2024-11-14 04:40:20,448 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-14 04:40:20,463 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6c2530ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 04:40:20,464 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-14 04:40:20,467 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 04:40:20,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-14 04:40:20,474 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-14 04:40:20,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-14 04:40:20,475 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-14 04:40:20,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 04:40:20,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1724589170, now seen corresponding path program 1 times
[2024-11-14 04:40:20,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 04:40:20,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204769355]
[2024-11-14 04:40:20,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 04:40:20,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 04:40:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 04:40:20,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 04:40:20,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 04:40:20,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204769355]
[2024-11-14 04:40:20,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204769355] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 04:40:20,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 04:40:20,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-14 04:40:20,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433818992]
[2024-11-14 04:40:20,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 04:40:20,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-14 04:40:20,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 04:40:20,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-14 04:40:20,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-14 04:40:20,696 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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)
[2024-11-14 04:40:20,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 04:40:20,735 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions.
[2024-11-14 04:40:20,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-14 04:40:20,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6
[2024-11-14 04:40:20,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 04:40:20,748 INFO L225 Difference]: With dead ends: 16
[2024-11-14 04:40:20,749 INFO L226 Difference]: Without dead ends: 8
[2024-11-14 04:40:20,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-14 04:40:20,755 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-14 04:40:20,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-14 04:40:20,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states.
[2024-11-14 04:40:20,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8.
[2024-11-14 04:40:20,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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)
[2024-11-14 04:40:20,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions.
[2024-11-14 04:40:20,794 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6
[2024-11-14 04:40:20,794 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-14 04:40:20,794 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions.
[2024-11-14 04:40:20,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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)
[2024-11-14 04:40:20,794 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions.
[2024-11-14 04:40:20,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-14 04:40:20,795 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-14 04:40:20,795 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-14 04:40:20,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-14 04:40:20,798 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-14 04:40:20,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 04:40:20,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1922594244, now seen corresponding path program 1 times
[2024-11-14 04:40:20,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 04:40:20,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286135774]
[2024-11-14 04:40:20,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 04:40:20,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 04:40:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 04:40:21,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 04:40:21,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 04:40:21,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286135774]
[2024-11-14 04:40:21,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286135774] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-14 04:40:21,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039572153]
[2024-11-14 04:40:21,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 04:40:21,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 04:40:21,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 04:40:21,013 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 04:40:21,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-14 04:40:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 04:40:21,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-14 04:40:21,083 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 04:40:21,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 04:40:21,159 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-14 04:40:21,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 04:40:21,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039572153] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-14 04:40:21,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1040532736]
[2024-11-14 04:40:21,266 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest
[2024-11-14 04:40:21,266 INFO L166 IcfgInterpreter]: Building call graph
[2024-11-14 04:40:21,269 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2024-11-14 04:40:21,274 INFO L176 IcfgInterpreter]: Starting interpretation
[2024-11-14 04:40:21,274 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2024-11-14 04:40:21,614 INFO L180 IcfgInterpreter]: Interpretation finished
[2024-11-14 04:40:21,909 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '85#(and (<= 1 |#StackHeapBarrier|) (= ~__return_65~0 0) (= ~__return_main~0 0))' at error location
[2024-11-14 04:40:21,909 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED
[2024-11-14 04:40:21,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-14 04:40:21,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2024-11-14 04:40:21,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367367225]
[2024-11-14 04:40:21,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-14 04:40:21,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-14 04:40:21,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 04:40:21,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-14 04:40:21,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156
[2024-11-14 04:40:21,913 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 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)
[2024-11-14 04:40:21,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 04:40:21,945 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions.
[2024-11-14 04:40:21,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-14 04:40:21,946 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 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 7
[2024-11-14 04:40:21,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 04:40:21,947 INFO L225 Difference]: With dead ends: 9
[2024-11-14 04:40:21,947 INFO L226 Difference]: Without dead ends: 0
[2024-11-14 04:40:21,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156
[2024-11-14 04:40:21,948 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-14 04:40:21,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-14 04:40:21,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-14 04:40:21,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-14 04:40:21,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 04:40:21,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-14 04:40:21,949 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7
[2024-11-14 04:40:21,949 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-14 04:40:21,949 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-14 04:40:21,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 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)
[2024-11-14 04:40:21,949 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-14 04:40:21,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-14 04:40:21,954 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-14 04:40:21,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-14 04:40:22,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 04:40:22,162 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-14 04:40:22,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-14 04:40:22,171 INFO L173 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-14 04:40:22,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:40:22 BoogieIcfgContainer
[2024-11-14 04:40:22,178 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-14 04:40:22,179 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-14 04:40:22,180 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-14 04:40:22,180 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-14 04:40:22,181 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:40:20" (3/4) ...
[2024-11-14 04:40:22,184 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-14 04:40:22,190 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-11-14 04:40:22,191 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-14 04:40:22,191 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-14 04:40:22,191 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-14 04:40:22,270 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/witness.graphml
[2024-11-14 04:40:22,270 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/witness.yml
[2024-11-14 04:40:22,271 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-14 04:40:22,272 INFO L158 Benchmark]: Toolchain (without parser) took 2522.42ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 55.6MB in the end (delta: 62.9MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB.
[2024-11-14 04:40:22,273 INFO L158 Benchmark]: CDTParser took 1.16ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-14 04:40:22,273 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.26ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 107.4MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-14 04:40:22,274 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.72ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 106.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-14 04:40:22,274 INFO L158 Benchmark]: Boogie Preprocessor took 21.90ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 105.8MB in the end (delta: 476.4kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-14 04:40:22,275 INFO L158 Benchmark]: RCFGBuilder took 294.00ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 95.3MB in the end (delta: 10.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-14 04:40:22,275 INFO L158 Benchmark]: TraceAbstraction took 1823.12ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 59.9MB in the end (delta: 34.7MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB.
[2024-11-14 04:40:22,276 INFO L158 Benchmark]: Witness Printer took 91.63ms. Allocated memory is still 142.6MB. Free memory was 59.9MB in the beginning and 55.6MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-14 04:40:22,279 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.16ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 253.26ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 107.4MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 30.72ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 106.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 21.90ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 105.8MB in the end (delta: 476.4kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 294.00ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 95.3MB in the end (delta: 10.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 1823.12ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 59.9MB in the end (delta: 34.7MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB.
* Witness Printer took 91.63ms. Allocated memory is still 142.6MB. Free memory was 59.9MB in the beginning and 55.6MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. 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
- PositiveResult [Line: 48]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 10 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 1 NumberOfNonLiveVariables, 46 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-14 04:40:22,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267f2f8f-32f2-4351-af5b-03e6bba6c5b2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE