./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/sum_2x3-2.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_2x3-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d9b45804bf1a403fd87b7e9f0e2fc3ea97d36c9de0ccb522dbdc14d8252502f
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 18:04:59,083 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 18:04:59,172 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 18:04:59,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 18:04:59,181 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 18:04:59,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 18:04:59,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 18:04:59,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 18:04:59,238 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 18:04:59,240 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 18:04:59,240 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 18:04:59,241 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 18:04:59,242 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 18:04:59,242 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 18:04:59,243 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 18:04:59,245 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 18:04:59,246 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 18:04:59,246 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 18:04:59,247 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 18:04:59,247 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 18:04:59,248 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 18:04:59,248 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 18:04:59,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 18:04:59,249 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 18:04:59,250 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 18:04:59,250 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 18:04:59,250 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 18:04:59,251 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 18:04:59,251 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 18:04:59,252 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 18:04:59,252 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 18:04:59,253 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 18:04:59,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:04:59,253 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 18:04:59,254 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 18:04:59,254 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 18:04:59,255 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 18:04:59,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 18:04:59,255 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 18:04:59,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 18:04:59,256 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 18:04:59,257 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 18:04:59,257 INFO L153 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_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d9b45804bf1a403fd87b7e9f0e2fc3ea97d36c9de0ccb522dbdc14d8252502f
[2024-11-08 18:04:59,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 18:04:59,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 18:04:59,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 18:04:59,555 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 18:04:59,556 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 18:04:59,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/recursive-simple/sum_2x3-2.c
Unable to find full path for "g++"
[2024-11-08 18:05:01,755 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 18:05:01,922 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 18:05:01,923 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/sv-benchmarks/c/recursive-simple/sum_2x3-2.c
[2024-11-08 18:05:01,931 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/data/94502fe07/238697106d974bd295a272f7f66baedf/FLAGf085ec46c
[2024-11-08 18:05:01,944 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/data/94502fe07/238697106d974bd295a272f7f66baedf
[2024-11-08 18:05:01,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 18:05:01,949 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 18:05:01,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 18:05:01,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 18:05:01,959 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 18:05:01,960 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:05:01" (1/1) ...
[2024-11-08 18:05:01,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7410db80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:01, skipping insertion in model container
[2024-11-08 18:05:01,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:05:01" (1/1) ...
[2024-11-08 18:05:01,989 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 18:05:02,167 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_13690bc5-8539-4cc4-b9da-4f04813a394b/sv-benchmarks/c/recursive-simple/sum_2x3-2.c[479,492]
[2024-11-08 18:05:02,172 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:05:02,182 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 18:05:02,199 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_13690bc5-8539-4cc4-b9da-4f04813a394b/sv-benchmarks/c/recursive-simple/sum_2x3-2.c[479,492]
[2024-11-08 18:05:02,200 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:05:02,219 INFO L204 MainTranslator]: Completed translation
[2024-11-08 18:05:02,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:02 WrapperNode
[2024-11-08 18:05:02,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 18:05:02,221 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 18:05:02,222 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 18:05:02,222 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 18:05:02,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:02" (1/1) ...
[2024-11-08 18:05:02,239 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:02" (1/1) ...
[2024-11-08 18:05:02,254 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19
[2024-11-08 18:05:02,255 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 18:05:02,255 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 18:05:02,256 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 18:05:02,256 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 18:05:02,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:02" (1/1) ...
[2024-11-08 18:05:02,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:02" (1/1) ...
[2024-11-08 18:05:02,269 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:02" (1/1) ...
[2024-11-08 18:05:02,281 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-08 18:05:02,281 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:02" (1/1) ...
[2024-11-08 18:05:02,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:02" (1/1) ...
[2024-11-08 18:05:02,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:02" (1/1) ...
[2024-11-08 18:05:02,285 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:02" (1/1) ...
[2024-11-08 18:05:02,286 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:02" (1/1) ...
[2024-11-08 18:05:02,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:02" (1/1) ...
[2024-11-08 18:05:02,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 18:05:02,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 18:05:02,290 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 18:05:02,290 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 18:05:02,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:02" (1/1) ...
[2024-11-08 18:05:02,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:05:02,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:05:02,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 18:05:02,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 18:05:02,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 18:05:02,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 18:05:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 18:05:02,362 INFO L130 BoogieDeclarations]: Found specification of procedure sum
[2024-11-08 18:05:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure sum
[2024-11-08 18:05:02,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 18:05:02,420 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 18:05:02,422 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 18:05:02,550 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-08 18:05:02,551 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 18:05:02,567 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 18:05:02,567 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 18:05:02,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:05:02 BoogieIcfgContainer
[2024-11-08 18:05:02,568 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 18:05:02,576 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 18:05:02,577 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 18:05:02,585 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 18:05:02,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:05:01" (1/3) ...
[2024-11-08 18:05:02,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3451b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:05:02, skipping insertion in model container
[2024-11-08 18:05:02,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:05:02" (2/3) ...
[2024-11-08 18:05:02,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3451b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:05:02, skipping insertion in model container
[2024-11-08 18:05:02,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:05:02" (3/3) ...
[2024-11-08 18:05:02,597 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_2x3-2.c
[2024-11-08 18:05:02,638 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 18:05:02,639 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 18:05:02,740 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 18:05:02,749 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=PETRI_NET, 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;@23e3dc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 18:05:02,750 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 18:05:02,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:05:02,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-08 18:05:02,764 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:05:02,765 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:05:02,765 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:05:02,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:05:02,772 INFO L85 PathProgramCache]: Analyzing trace with hash -358017204, now seen corresponding path program 1 times
[2024-11-08 18:05:02,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:05:02,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557786888]
[2024-11-08 18:05:02,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:05:02,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:05:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:03,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 18:05:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:03,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:05:03,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:05:03,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557786888]
[2024-11-08 18:05:03,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557786888] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:05:03,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:05:03,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 18:05:03,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70221818]
[2024-11-08 18:05:03,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:05:03,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 18:05:03,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:05:03,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 18:05:03,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 18:05:03,179 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:05:03,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:05:03,264 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions.
[2024-11-08 18:05:03,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 18:05:03,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10
[2024-11-08 18:05:03,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:05:03,276 INFO L225 Difference]: With dead ends: 25
[2024-11-08 18:05:03,276 INFO L226 Difference]: Without dead ends: 15
[2024-11-08 18:05:03,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 18:05:03,285 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 4 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 18:05:03,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 35 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 18:05:03,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2024-11-08 18:05:03,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2024-11-08 18:05:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 18:05:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions.
[2024-11-08 18:05:03,341 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10
[2024-11-08 18:05:03,342 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:05:03,342 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions.
[2024-11-08 18:05:03,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:05:03,343 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions.
[2024-11-08 18:05:03,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-11-08 18:05:03,347 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:05:03,347 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:05:03,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 18:05:03,348 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:05:03,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:05:03,351 INFO L85 PathProgramCache]: Analyzing trace with hash 679465686, now seen corresponding path program 1 times
[2024-11-08 18:05:03,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:05:03,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026475032]
[2024-11-08 18:05:03,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:05:03,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:05:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:03,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 18:05:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:03,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 18:05:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:03,674 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-08 18:05:03,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:05:03,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026475032]
[2024-11-08 18:05:03,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026475032] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:05:03,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214663679]
[2024-11-08 18:05:03,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:05:03,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:05:03,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:05:03,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:05:03,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 18:05:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:03,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 18:05:03,763 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:05:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-08 18:05:03,887 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:05:04,201 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 18:05:04,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214663679] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:05:04,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:05:04,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 10
[2024-11-08 18:05:04,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598051707]
[2024-11-08 18:05:04,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:05:04,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 18:05:04,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:05:04,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 18:05:04,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2024-11-08 18:05:04,206 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 10 states, 8 states have (on average 2.375) internal successors, (19), 10 states have internal predecessors, (19), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-08 18:05:04,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:05:04,275 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions.
[2024-11-08 18:05:04,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:05:04,276 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.375) internal successors, (19), 10 states have internal predecessors, (19), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 5 states have call successors, (5) Word has length 16
[2024-11-08 18:05:04,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:05:04,277 INFO L225 Difference]: With dead ends: 22
[2024-11-08 18:05:04,277 INFO L226 Difference]: Without dead ends: 18
[2024-11-08 18:05:04,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110
[2024-11-08 18:05:04,279 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 10 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 18:05:04,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 34 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:05:04,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2024-11-08 18:05:04,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2024-11-08 18:05:04,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-08 18:05:04,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions.
[2024-11-08 18:05:04,287 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 16
[2024-11-08 18:05:04,288 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:05:04,288 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions.
[2024-11-08 18:05:04,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.375) internal successors, (19), 10 states have internal predecessors, (19), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-08 18:05:04,289 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions.
[2024-11-08 18:05:04,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-11-08 18:05:04,290 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:05:04,290 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:05:04,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 18:05:04,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:05:04,492 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:05:04,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:05:04,493 INFO L85 PathProgramCache]: Analyzing trace with hash -41010676, now seen corresponding path program 2 times
[2024-11-08 18:05:04,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:05:04,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651579670]
[2024-11-08 18:05:04,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:05:04,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:05:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:04,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 18:05:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:05,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 18:05:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:05,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 18:05:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:05,295 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 18:05:05,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:05:05,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651579670]
[2024-11-08 18:05:05,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651579670] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:05:05,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847158709]
[2024-11-08 18:05:05,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 18:05:05,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:05:05,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:05:05,300 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:05:05,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 18:05:05,368 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 18:05:05,368 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 18:05:05,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 33 conjuncts are in the unsatisfiable core
[2024-11-08 18:05:05,374 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:05:05,570 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 18:05:05,570 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:05:06,369 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 18:05:06,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847158709] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:05:06,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:05:06,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22
[2024-11-08 18:05:06,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848161451]
[2024-11-08 18:05:06,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:05:06,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2024-11-08 18:05:06,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:05:06,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2024-11-08 18:05:06,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462
[2024-11-08 18:05:06,375 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 22 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 17 states have internal predecessors, (26), 5 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-08 18:05:06,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:05:06,676 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions.
[2024-11-08 18:05:06,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-08 18:05:06,677 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 17 states have internal predecessors, (26), 5 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 22
[2024-11-08 18:05:06,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:05:06,678 INFO L225 Difference]: With dead ends: 25
[2024-11-08 18:05:06,679 INFO L226 Difference]: Without dead ends: 21
[2024-11-08 18:05:06,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702
[2024-11-08 18:05:06,684 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 21 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 18:05:06,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 85 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 18:05:06,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2024-11-08 18:05:06,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2024-11-08 18:05:06,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-08 18:05:06,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions.
[2024-11-08 18:05:06,697 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 22
[2024-11-08 18:05:06,697 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:05:06,697 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions.
[2024-11-08 18:05:06,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 17 states have internal predecessors, (26), 5 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-08 18:05:06,698 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions.
[2024-11-08 18:05:06,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2024-11-08 18:05:06,700 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:05:06,700 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:05:06,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-08 18:05:06,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:05:06,902 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:05:06,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:05:06,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1769866774, now seen corresponding path program 3 times
[2024-11-08 18:05:06,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:05:06,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699634578]
[2024-11-08 18:05:06,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:05:06,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:05:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:06,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 18:05:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:07,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 18:05:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:07,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 18:05:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:07,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 18:05:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:05:07,184 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-11-08 18:05:07,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:05:07,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699634578]
[2024-11-08 18:05:07,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699634578] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:05:07,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919890849]
[2024-11-08 18:05:07,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-08 18:05:07,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:05:07,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:05:07,193 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:05:07,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 18:05:07,262 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2024-11-08 18:05:07,262 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 18:05:07,264 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-08 18:05:07,265 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:05:07,331 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-11-08 18:05:07,331 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:05:07,782 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-08 18:05:07,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919890849] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:05:07,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:05:07,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 9] total 13
[2024-11-08 18:05:07,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611098107]
[2024-11-08 18:05:07,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:05:07,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-08 18:05:07,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:05:07,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-08 18:05:07,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156
[2024-11-08 18:05:07,786 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 13 states, 10 states have (on average 2.7) internal successors, (27), 13 states have internal predecessors, (27), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (10), 4 states have call predecessors, (10), 8 states have call successors, (10)
[2024-11-08 18:05:07,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:05:07,873 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions.
[2024-11-08 18:05:07,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 18:05:07,874 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 2.7) internal successors, (27), 13 states have internal predecessors, (27), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (10), 4 states have call predecessors, (10), 8 states have call successors, (10) Word has length 28
[2024-11-08 18:05:07,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:05:07,874 INFO L225 Difference]: With dead ends: 31
[2024-11-08 18:05:07,874 INFO L226 Difference]: Without dead ends: 0
[2024-11-08 18:05:07,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 56 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210
[2024-11-08 18:05:07,876 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 18:05:07,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 46 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 18:05:07,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-08 18:05:07,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-08 18:05:07,882 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)
[2024-11-08 18:05:07,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-08 18:05:07,884 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28
[2024-11-08 18:05:07,884 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:05:07,884 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-08 18:05:07,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 2.7) internal successors, (27), 13 states have internal predecessors, (27), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (10), 4 states have call predecessors, (10), 8 states have call successors, (10)
[2024-11-08 18:05:07,885 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-08 18:05:07,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-08 18:05:07,889 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-08 18:05:07,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-08 18:05:08,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:05:08,097 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1]
[2024-11-08 18:05:08,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-08 18:05:08,266 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 18:05:08,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:05:08 BoogieIcfgContainer
[2024-11-08 18:05:08,306 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 18:05:08,307 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 18:05:08,307 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 18:05:08,307 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 18:05:08,308 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:05:02" (3/4) ...
[2024-11-08 18:05:08,313 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-08 18:05:08,320 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure sum
[2024-11-08 18:05:08,326 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-11-08 18:05:08,326 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-11-08 18:05:08,328 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-08 18:05:08,328 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-08 18:05:08,428 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/witness.graphml
[2024-11-08 18:05:08,429 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/witness.yml
[2024-11-08 18:05:08,429 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 18:05:08,430 INFO L158 Benchmark]: Toolchain (without parser) took 6480.67ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 99.4MB in the beginning and 53.0MB in the end (delta: 46.4MB). Peak memory consumption was 102.2MB. Max. memory is 16.1GB.
[2024-11-08 18:05:08,430 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 134.2MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 18:05:08,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.91ms. Allocated memory is still 134.2MB. Free memory was 99.4MB in the beginning and 87.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-08 18:05:08,431 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.42ms. Allocated memory is still 134.2MB. Free memory was 87.3MB in the beginning and 86.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 18:05:08,431 INFO L158 Benchmark]: Boogie Preprocessor took 33.58ms. Allocated memory is still 134.2MB. Free memory was 86.0MB in the beginning and 84.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:05:08,432 INFO L158 Benchmark]: RCFGBuilder took 278.51ms. Allocated memory is still 134.2MB. Free memory was 84.5MB in the beginning and 75.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-11-08 18:05:08,432 INFO L158 Benchmark]: TraceAbstraction took 5730.69ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 74.3MB in the beginning and 57.2MB in the end (delta: 17.2MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB.
[2024-11-08 18:05:08,433 INFO L158 Benchmark]: Witness Printer took 121.91ms. Allocated memory is still 188.7MB. Free memory was 57.2MB in the beginning and 53.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-08 18:05:08,435 INFO L338 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 134.2MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 269.91ms. Allocated memory is still 134.2MB. Free memory was 99.4MB in the beginning and 87.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 33.42ms. Allocated memory is still 134.2MB. Free memory was 87.3MB in the beginning and 86.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 33.58ms. Allocated memory is still 134.2MB. Free memory was 86.0MB in the beginning and 84.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 278.51ms. Allocated memory is still 134.2MB. Free memory was 84.5MB in the beginning and 75.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 5730.69ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 74.3MB in the beginning and 57.2MB in the end (delta: 17.2MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB.
* Witness Printer took 121.91ms. Allocated memory is still 188.7MB. Free memory was 57.2MB in the beginning and 53.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 18]: 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 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 200 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 157 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 254 IncrementalHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 43 mSDtfsCounter, 254 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 183 GetRequests, 126 SyntacticMatches, 7 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=3, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 675 SizeOfPredicates, 8 NumberOfNonLiveVariables, 249 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 96/144 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
- ProcedureContractResult [Line: 5]: Procedure Contract for sum
Derived contract for procedure sum. Ensures: (((((\result == ((long long) 2 + m)) && (2 == n)) || ((\result <= m) && (((long long) n + m) <= \result))) || ((\result == ((long long) m + 1)) && (n == 1))) || (2 < n))
RESULT: Ultimate proved your program to be correct!
[2024-11-08 18:05:08,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13690bc5-8539-4cc4-b9da-4f04813a394b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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