./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_10-1.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version 0e0057cc
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_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_10-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme --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 b6366e3b98da5ee88513ec6586b547e61d25aed49a53277f23448bdf367b4562
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-11-26 11:54:20,859 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-26 11:54:20,980 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-26 11:54:20,992 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-26 11:54:20,993 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-26 11:54:21,038 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-26 11:54:21,042 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-26 11:54:21,042 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-26 11:54:21,043 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-26 11:54:21,049 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-11-26 11:54:21,049 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-26 11:54:21,050 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-26 11:54:21,051 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-26 11:54:21,051 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-26 11:54:21,051 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-26 11:54:21,052 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-26 11:54:21,052 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-26 11:54:21,053 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-26 11:54:21,053 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-26 11:54:21,053 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-26 11:54:21,054 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-26 11:54:21,055 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-26 11:54:21,057 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-26 11:54:21,057 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-26 11:54:21,058 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-26 11:54:21,058 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-26 11:54:21,058 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-26 11:54:21,059 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-26 11:54:21,060 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-26 11:54:21,060 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-11-26 11:54:21,062 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-26 11:54:21,062 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 11:54:21,063 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-26 11:54:21,063 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-26 11:54:21,063 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-26 11:54:21,063 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-26 11:54:21,064 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-26 11:54:21,064 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-26 11:54:21,064 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-26 11:54:21,064 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-26 11:54:21,065 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-26 11:54:21,065 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-26 11:54:21,065 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_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/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_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme
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 -> b6366e3b98da5ee88513ec6586b547e61d25aed49a53277f23448bdf367b4562
[2023-11-26 11:54:21,363 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-26 11:54:21,389 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-26 11:54:21,392 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-26 11:54:21,394 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-26 11:54:21,394 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-26 11:54:21,396 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/recursive-simple/fibo_2calls_10-1.c
[2023-11-26 11:54:24,672 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-26 11:54:24,872 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-26 11:54:24,872 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/sv-benchmarks/c/recursive-simple/fibo_2calls_10-1.c
[2023-11-26 11:54:24,881 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/data/9661e6a48/a82b17a09c12496691c610f82dc542fa/FLAGf7096f8ef
[2023-11-26 11:54:24,898 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/data/9661e6a48/a82b17a09c12496691c610f82dc542fa
[2023-11-26 11:54:24,901 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-26 11:54:24,903 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-26 11:54:24,904 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-26 11:54:24,905 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-26 11:54:24,911 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-26 11:54:24,912 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:54:24" (1/1) ...
[2023-11-26 11:54:24,919 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61fd69b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:24, skipping insertion in model container
[2023-11-26 11:54:24,920 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:54:24" (1/1) ...
[2023-11-26 11:54:24,944 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-26 11:54:25,131 WARN  L240   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_c5c93fcc-14ed-4610-b14b-c928db2cabb8/sv-benchmarks/c/recursive-simple/fibo_2calls_10-1.c[949,962]
[2023-11-26 11:54:25,137 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-26 11:54:25,153 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-26 11:54:25,171 WARN  L240   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_c5c93fcc-14ed-4610-b14b-c928db2cabb8/sv-benchmarks/c/recursive-simple/fibo_2calls_10-1.c[949,962]
[2023-11-26 11:54:25,172 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-26 11:54:25,186 INFO  L206         MainTranslator]: Completed translation
[2023-11-26 11:54:25,187 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:25 WrapperNode
[2023-11-26 11:54:25,187 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-26 11:54:25,188 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-26 11:54:25,189 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-26 11:54:25,189 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-26 11:54:25,198 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:25" (1/1) ...
[2023-11-26 11:54:25,207 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:25" (1/1) ...
[2023-11-26 11:54:25,229 INFO  L138                Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20
[2023-11-26 11:54:25,230 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-26 11:54:25,230 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-26 11:54:25,231 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-26 11:54:25,231 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-26 11:54:25,244 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:25" (1/1) ...
[2023-11-26 11:54:25,244 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:25" (1/1) ...
[2023-11-26 11:54:25,260 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:25" (1/1) ...
[2023-11-26 11:54:25,272 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].
[2023-11-26 11:54:25,273 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:25" (1/1) ...
[2023-11-26 11:54:25,273 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:25" (1/1) ...
[2023-11-26 11:54:25,287 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:25" (1/1) ...
[2023-11-26 11:54:25,289 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:25" (1/1) ...
[2023-11-26 11:54:25,290 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:25" (1/1) ...
[2023-11-26 11:54:25,291 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:25" (1/1) ...
[2023-11-26 11:54:25,293 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-26 11:54:25,294 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-26 11:54:25,295 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-26 11:54:25,295 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-26 11:54:25,296 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:25" (1/1) ...
[2023-11-26 11:54:25,305 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 11:54:25,321 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:54:25,335 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-11-26 11:54:25,338 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-11-26 11:54:25,369 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-26 11:54:25,369 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-26 11:54:25,370 INFO  L130     BoogieDeclarations]: Found specification of procedure fibo2
[2023-11-26 11:54:25,370 INFO  L138     BoogieDeclarations]: Found implementation of procedure fibo2
[2023-11-26 11:54:25,370 INFO  L130     BoogieDeclarations]: Found specification of procedure fibo1
[2023-11-26 11:54:25,370 INFO  L138     BoogieDeclarations]: Found implementation of procedure fibo1
[2023-11-26 11:54:25,371 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-26 11:54:25,371 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-26 11:54:25,455 INFO  L241             CfgBuilder]: Building ICFG
[2023-11-26 11:54:25,458 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-26 11:54:25,600 INFO  L282             CfgBuilder]: Performing block encoding
[2023-11-26 11:54:25,623 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-26 11:54:25,623 INFO  L309             CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-26 11:54:25,624 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:25 BoogieIcfgContainer
[2023-11-26 11:54:25,624 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-26 11:54:25,627 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-26 11:54:25,627 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-26 11:54:25,631 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-26 11:54:25,631 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:54:24" (1/3) ...
[2023-11-26 11:54:25,632 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79034993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:54:25, skipping insertion in model container
[2023-11-26 11:54:25,632 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:25" (2/3) ...
[2023-11-26 11:54:25,633 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79034993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:54:25, skipping insertion in model container
[2023-11-26 11:54:25,633 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:25" (3/3) ...
[2023-11-26 11:54:25,634 INFO  L112   eAbstractionObserver]: Analyzing ICFG fibo_2calls_10-1.c
[2023-11-26 11:54:25,657 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-26 11:54:25,657 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-26 11:54:25,713 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-26 11:54:25,720 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@5c0eab31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-26 11:54:25,720 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-26 11:54:25,725 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 26 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2023-11-26 11:54:25,733 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-11-26 11:54:25,733 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:54:25,734 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:54:25,735 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:54:25,741 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:54:25,741 INFO  L85        PathProgramCache]: Analyzing trace with hash -389521846, now seen corresponding path program 1 times
[2023-11-26 11:54:25,752 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:54:25,753 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315559458]
[2023-11-26 11:54:25,753 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:25,753 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:54:25,854 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:26,001 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2023-11-26 11:54:26,015 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:26,080 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:54:26,103 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:54:26,104 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315559458]
[2023-11-26 11:54:26,106 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315559458] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:54:26,106 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:54:26,106 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-26 11:54:26,109 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980243733]
[2023-11-26 11:54:26,110 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:54:26,115 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-26 11:54:26,116 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:54:26,175 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-26 11:54:26,176 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-26 11:54:26,179 INFO  L87              Difference]: Start difference. First operand  has 26 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand  has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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)
[2023-11-26 11:54:26,292 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:54:26,292 INFO  L93              Difference]: Finished difference Result 34 states and 43 transitions.
[2023-11-26 11:54:26,294 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-26 11:54:26,296 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 9
[2023-11-26 11:54:26,296 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:54:26,306 INFO  L225             Difference]: With dead ends: 34
[2023-11-26 11:54:26,306 INFO  L226             Difference]: Without dead ends: 26
[2023-11-26 11:54:26,309 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-11-26 11:54:26,313 INFO  L413           NwaCegarLoop]: 23 mSDtfsCounter, 12 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-26 11:54:26,315 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 73 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-26 11:54:26,333 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2023-11-26 11:54:26,355 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2023-11-26 11:54:26,356 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 26 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7)
[2023-11-26 11:54:26,358 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions.
[2023-11-26 11:54:26,360 INFO  L78                 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 9
[2023-11-26 11:54:26,360 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:54:26,361 INFO  L495      AbstractCegarLoop]: Abstraction has 26 states and 33 transitions.
[2023-11-26 11:54:26,361 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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)
[2023-11-26 11:54:26,361 INFO  L276                IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions.
[2023-11-26 11:54:26,363 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2023-11-26 11:54:26,363 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:54:26,363 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:54:26,363 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-26 11:54:26,364 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:54:26,365 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:54:26,365 INFO  L85        PathProgramCache]: Analyzing trace with hash 1524884472, now seen corresponding path program 1 times
[2023-11-26 11:54:26,365 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:54:26,366 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089950075]
[2023-11-26 11:54:26,366 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:26,366 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:54:26,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:26,428 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2023-11-26 11:54:26,433 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:26,482 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:54:26,482 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:54:26,483 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089950075]
[2023-11-26 11:54:26,483 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089950075] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:54:26,483 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:54:26,484 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-26 11:54:26,484 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942121105]
[2023-11-26 11:54:26,484 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:54:26,486 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-26 11:54:26,486 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:54:26,487 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-26 11:54:26,487 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-26 11:54:26,488 INFO  L87              Difference]: Start difference. First operand 26 states and 33 transitions. Second operand  has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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)
[2023-11-26 11:54:26,550 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:54:26,551 INFO  L93              Difference]: Finished difference Result 32 states and 40 transitions.
[2023-11-26 11:54:26,551 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-26 11:54:26,552 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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
[2023-11-26 11:54:26,552 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:54:26,553 INFO  L225             Difference]: With dead ends: 32
[2023-11-26 11:54:26,554 INFO  L226             Difference]: Without dead ends: 28
[2023-11-26 11:54:26,554 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-11-26 11:54:26,556 INFO  L413           NwaCegarLoop]: 22 mSDtfsCounter, 10 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-26 11:54:26,557 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 70 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-26 11:54:26,558 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2023-11-26 11:54:26,564 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26.
[2023-11-26 11:54:26,565 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 26 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7)
[2023-11-26 11:54:26,566 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions.
[2023-11-26 11:54:26,567 INFO  L78                 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 10
[2023-11-26 11:54:26,567 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:54:26,567 INFO  L495      AbstractCegarLoop]: Abstraction has 26 states and 33 transitions.
[2023-11-26 11:54:26,568 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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)
[2023-11-26 11:54:26,568 INFO  L276                IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions.
[2023-11-26 11:54:26,570 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2023-11-26 11:54:26,570 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:54:26,570 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:54:26,570 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-26 11:54:26,571 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:54:26,572 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:54:26,572 INFO  L85        PathProgramCache]: Analyzing trace with hash 741502751, now seen corresponding path program 1 times
[2023-11-26 11:54:26,572 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:54:26,573 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296132790]
[2023-11-26 11:54:26,573 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:26,573 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:54:26,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:26,695 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2023-11-26 11:54:26,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:26,770 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:26,775 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:26,820 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2023-11-26 11:54:26,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:26,827 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-26 11:54:26,828 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:54:26,828 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296132790]
[2023-11-26 11:54:26,828 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296132790] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:54:26,829 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076741279]
[2023-11-26 11:54:26,829 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:26,829 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:54:26,829 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:54:26,833 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:54:26,849 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-26 11:54:26,912 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:26,914 INFO  L262         TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-26 11:54:26,920 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:54:27,083 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-26 11:54:27,086 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-26 11:54:27,419 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-26 11:54:27,419 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076741279] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-26 11:54:27,420 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-26 11:54:27,426 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13
[2023-11-26 11:54:27,427 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254796756]
[2023-11-26 11:54:27,427 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-26 11:54:27,428 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-11-26 11:54:27,429 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:54:27,433 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-11-26 11:54:27,434 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-11-26 11:54:27,435 INFO  L87              Difference]: Start difference. First operand 26 states and 33 transitions. Second operand  has 13 states, 10 states have (on average 3.1) internal successors, (31), 13 states have internal predecessors, (31), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8)
[2023-11-26 11:54:27,679 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:54:27,679 INFO  L93              Difference]: Finished difference Result 54 states and 74 transitions.
[2023-11-26 11:54:27,680 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-11-26 11:54:27,680 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 10 states have (on average 3.1) internal successors, (31), 13 states have internal predecessors, (31), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) Word has length 22
[2023-11-26 11:54:27,680 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:54:27,685 INFO  L225             Difference]: With dead ends: 54
[2023-11-26 11:54:27,685 INFO  L226             Difference]: Without dead ends: 30
[2023-11-26 11:54:27,688 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306
[2023-11-26 11:54:27,692 INFO  L413           NwaCegarLoop]: 18 mSDtfsCounter, 28 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-26 11:54:27,694 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 96 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-26 11:54:27,698 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2023-11-26 11:54:27,712 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28.
[2023-11-26 11:54:27,712 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 28 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8)
[2023-11-26 11:54:27,714 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions.
[2023-11-26 11:54:27,714 INFO  L78                 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 22
[2023-11-26 11:54:27,715 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:54:27,715 INFO  L495      AbstractCegarLoop]: Abstraction has 28 states and 35 transitions.
[2023-11-26 11:54:27,715 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 10 states have (on average 3.1) internal successors, (31), 13 states have internal predecessors, (31), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8)
[2023-11-26 11:54:27,716 INFO  L276                IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions.
[2023-11-26 11:54:27,717 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2023-11-26 11:54:27,717 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:54:27,718 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:54:27,731 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-11-26 11:54:27,924 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:54:27,924 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:54:27,925 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:54:27,925 INFO  L85        PathProgramCache]: Analyzing trace with hash 1785876995, now seen corresponding path program 1 times
[2023-11-26 11:54:27,925 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:54:27,925 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700324636]
[2023-11-26 11:54:27,925 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:27,925 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:54:27,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:28,017 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2023-11-26 11:54:28,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:28,089 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:28,092 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:28,121 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:28,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:28,140 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-26 11:54:28,141 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:54:28,141 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700324636]
[2023-11-26 11:54:28,143 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700324636] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:54:28,145 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683217124]
[2023-11-26 11:54:28,146 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:28,146 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:54:28,146 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:54:28,147 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:54:28,166 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-26 11:54:28,210 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:28,211 INFO  L262         TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-26 11:54:28,212 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:54:28,261 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-26 11:54:28,261 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-26 11:54:28,450 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-26 11:54:28,450 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [683217124] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-26 11:54:28,450 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-26 11:54:28,451 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13
[2023-11-26 11:54:28,453 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136385424]
[2023-11-26 11:54:28,453 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-26 11:54:28,458 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-11-26 11:54:28,458 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:54:28,459 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-11-26 11:54:28,460 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156
[2023-11-26 11:54:28,460 INFO  L87              Difference]: Start difference. First operand 28 states and 35 transitions. Second operand  has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 13 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7)
[2023-11-26 11:54:28,608 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:54:28,608 INFO  L93              Difference]: Finished difference Result 50 states and 70 transitions.
[2023-11-26 11:54:28,609 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-11-26 11:54:28,609 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 13 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) Word has length 23
[2023-11-26 11:54:28,610 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:54:28,612 INFO  L225             Difference]: With dead ends: 50
[2023-11-26 11:54:28,613 INFO  L226             Difference]: Without dead ends: 46
[2023-11-26 11:54:28,613 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182
[2023-11-26 11:54:28,615 INFO  L413           NwaCegarLoop]: 18 mSDtfsCounter, 39 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-26 11:54:28,615 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 63 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-26 11:54:28,616 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2023-11-26 11:54:28,625 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44.
[2023-11-26 11:54:28,626 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 44 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 30 states have internal predecessors, (37), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15)
[2023-11-26 11:54:28,627 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 61 transitions.
[2023-11-26 11:54:28,628 INFO  L78                 Accepts]: Start accepts. Automaton has 44 states and 61 transitions. Word has length 23
[2023-11-26 11:54:28,628 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:54:28,628 INFO  L495      AbstractCegarLoop]: Abstraction has 44 states and 61 transitions.
[2023-11-26 11:54:28,629 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 13 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7)
[2023-11-26 11:54:28,629 INFO  L276                IsEmpty]: Start isEmpty. Operand 44 states and 61 transitions.
[2023-11-26 11:54:28,631 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2023-11-26 11:54:28,631 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:54:28,632 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:54:28,638 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-11-26 11:54:28,837 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:54:28,838 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:54:28,838 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:54:28,838 INFO  L85        PathProgramCache]: Analyzing trace with hash -1754399412, now seen corresponding path program 1 times
[2023-11-26 11:54:28,838 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:54:28,838 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780341519]
[2023-11-26 11:54:28,839 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:28,839 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:54:28,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:28,922 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2023-11-26 11:54:28,930 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:28,956 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:28,961 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:28,989 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:28,992 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:29,018 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2023-11-26 11:54:29,019 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:29,022 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2023-11-26 11:54:29,025 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:29,029 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2023-11-26 11:54:29,029 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:54:29,029 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780341519]
[2023-11-26 11:54:29,030 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780341519] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:54:29,031 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719958688]
[2023-11-26 11:54:29,033 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:29,034 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:54:29,034 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:54:29,035 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:54:29,062 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-26 11:54:29,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:29,105 INFO  L262         TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-11-26 11:54:29,108 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:54:29,211 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2023-11-26 11:54:29,211 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-26 11:54:29,600 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-26 11:54:29,600 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [719958688] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-26 11:54:29,601 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-26 11:54:29,601 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 15
[2023-11-26 11:54:29,601 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153089630]
[2023-11-26 11:54:29,601 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-26 11:54:29,603 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2023-11-26 11:54:29,603 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:54:29,604 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2023-11-26 11:54:29,605 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210
[2023-11-26 11:54:29,605 INFO  L87              Difference]: Start difference. First operand 44 states and 61 transitions. Second operand  has 15 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 15 states have internal predecessors, (46), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13)
[2023-11-26 11:54:29,865 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:54:29,866 INFO  L93              Difference]: Finished difference Result 104 states and 166 transitions.
[2023-11-26 11:54:29,866 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2023-11-26 11:54:29,866 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 15 states have internal predecessors, (46), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) Word has length 35
[2023-11-26 11:54:29,869 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:54:29,876 INFO  L225             Difference]: With dead ends: 104
[2023-11-26 11:54:29,876 INFO  L226             Difference]: Without dead ends: 62
[2023-11-26 11:54:29,881 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 74 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462
[2023-11-26 11:54:29,882 INFO  L413           NwaCegarLoop]: 19 mSDtfsCounter, 41 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-26 11:54:29,883 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 130 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-26 11:54:29,885 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2023-11-26 11:54:29,907 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2023-11-26 11:54:29,907 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 62 states, 40 states have (on average 1.25) internal successors, (50), 43 states have internal predecessors, (50), 12 states have call successors, (12), 5 states have call predecessors, (12), 9 states have return successors, (29), 13 states have call predecessors, (29), 12 states have call successors, (29)
[2023-11-26 11:54:29,909 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 91 transitions.
[2023-11-26 11:54:29,909 INFO  L78                 Accepts]: Start accepts. Automaton has 62 states and 91 transitions. Word has length 35
[2023-11-26 11:54:29,910 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:54:29,910 INFO  L495      AbstractCegarLoop]: Abstraction has 62 states and 91 transitions.
[2023-11-26 11:54:29,910 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 15 states have internal predecessors, (46), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13)
[2023-11-26 11:54:29,910 INFO  L276                IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions.
[2023-11-26 11:54:29,912 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2023-11-26 11:54:29,912 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:54:29,913 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:54:29,927 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-26 11:54:30,123 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:54:30,123 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:54:30,124 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:54:30,124 INFO  L85        PathProgramCache]: Analyzing trace with hash 2101254926, now seen corresponding path program 1 times
[2023-11-26 11:54:30,124 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:54:30,124 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982519316]
[2023-11-26 11:54:30,124 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:30,124 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:54:30,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:30,169 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2023-11-26 11:54:30,175 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:30,225 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:30,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:30,303 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:30,306 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:30,312 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:30,315 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:30,344 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:30,346 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:30,360 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2023-11-26 11:54:30,361 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:54:30,361 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982519316]
[2023-11-26 11:54:30,361 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982519316] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:54:30,361 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892830097]
[2023-11-26 11:54:30,361 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:30,362 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:54:30,362 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:54:30,363 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:54:30,381 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-11-26 11:54:30,419 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:30,420 INFO  L262         TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-11-26 11:54:30,422 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:54:30,521 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2023-11-26 11:54:30,521 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-26 11:54:30,924 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-26 11:54:30,925 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [892830097] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-26 11:54:30,925 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-26 11:54:30,925 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 18
[2023-11-26 11:54:30,925 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373296165]
[2023-11-26 11:54:30,925 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-26 11:54:30,926 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2023-11-26 11:54:30,926 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:54:30,927 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2023-11-26 11:54:30,927 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306
[2023-11-26 11:54:30,928 INFO  L87              Difference]: Start difference. First operand 62 states and 91 transitions. Second operand  has 18 states, 16 states have (on average 3.0625) internal successors, (49), 18 states have internal predecessors, (49), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13)
[2023-11-26 11:54:31,383 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:54:31,384 INFO  L93              Difference]: Finished difference Result 176 states and 320 transitions.
[2023-11-26 11:54:31,384 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2023-11-26 11:54:31,385 INFO  L78                 Accepts]: Start accepts. Automaton has  has 18 states, 16 states have (on average 3.0625) internal successors, (49), 18 states have internal predecessors, (49), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) Word has length 36
[2023-11-26 11:54:31,385 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:54:31,393 INFO  L225             Difference]: With dead ends: 176
[2023-11-26 11:54:31,393 INFO  L226             Difference]: Without dead ends: 116
[2023-11-26 11:54:31,396 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650
[2023-11-26 11:54:31,398 INFO  L413           NwaCegarLoop]: 30 mSDtfsCounter, 48 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-11-26 11:54:31,400 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 217 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-11-26 11:54:31,402 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 116 states.
[2023-11-26 11:54:31,447 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 102.
[2023-11-26 11:54:31,448 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 102 states, 65 states have (on average 1.2153846153846153) internal successors, (79), 68 states have internal predecessors, (79), 21 states have call successors, (21), 7 states have call predecessors, (21), 15 states have return successors, (65), 26 states have call predecessors, (65), 21 states have call successors, (65)
[2023-11-26 11:54:31,459 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 165 transitions.
[2023-11-26 11:54:31,459 INFO  L78                 Accepts]: Start accepts. Automaton has 102 states and 165 transitions. Word has length 36
[2023-11-26 11:54:31,459 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:54:31,460 INFO  L495      AbstractCegarLoop]: Abstraction has 102 states and 165 transitions.
[2023-11-26 11:54:31,462 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 16 states have (on average 3.0625) internal successors, (49), 18 states have internal predecessors, (49), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13)
[2023-11-26 11:54:31,462 INFO  L276                IsEmpty]: Start isEmpty. Operand 102 states and 165 transitions.
[2023-11-26 11:54:31,469 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2023-11-26 11:54:31,474 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:54:31,475 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:54:31,484 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-11-26 11:54:31,682 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:54:31,683 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:54:31,683 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:54:31,683 INFO  L85        PathProgramCache]: Analyzing trace with hash 644290867, now seen corresponding path program 1 times
[2023-11-26 11:54:31,683 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:54:31,684 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689684833]
[2023-11-26 11:54:31,684 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:31,684 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:54:31,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:31,778 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2023-11-26 11:54:31,786 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:31,851 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:31,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:31,899 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:31,902 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:31,951 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:31,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:31,956 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:31,958 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:31,962 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:31,964 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:31,979 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2023-11-26 11:54:31,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:31,983 INFO  L134       CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked.
[2023-11-26 11:54:31,983 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:54:31,983 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689684833]
[2023-11-26 11:54:31,984 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689684833] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:54:31,984 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192575932]
[2023-11-26 11:54:31,984 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:31,984 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:54:31,984 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:54:31,986 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:54:31,995 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-11-26 11:54:32,056 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:32,057 INFO  L262         TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-11-26 11:54:32,062 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:54:32,175 INFO  L134       CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2023-11-26 11:54:32,176 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-26 11:54:32,813 INFO  L134       CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2023-11-26 11:54:32,814 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192575932] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-26 11:54:32,814 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-26 11:54:32,814 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 20
[2023-11-26 11:54:32,814 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387091534]
[2023-11-26 11:54:32,814 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-26 11:54:32,815 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2023-11-26 11:54:32,815 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:54:32,816 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2023-11-26 11:54:32,817 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380
[2023-11-26 11:54:32,817 INFO  L87              Difference]: Start difference. First operand 102 states and 165 transitions. Second operand  has 20 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 20 states have internal predecessors, (59), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18)
[2023-11-26 11:54:33,332 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:54:33,333 INFO  L93              Difference]: Finished difference Result 254 states and 494 transitions.
[2023-11-26 11:54:33,333 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-11-26 11:54:33,334 INFO  L78                 Accepts]: Start accepts. Automaton has  has 20 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 20 states have internal predecessors, (59), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) Word has length 50
[2023-11-26 11:54:33,336 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:54:33,340 INFO  L225             Difference]: With dead ends: 254
[2023-11-26 11:54:33,341 INFO  L226             Difference]: Without dead ends: 154
[2023-11-26 11:54:33,343 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 107 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812
[2023-11-26 11:54:33,344 INFO  L413           NwaCegarLoop]: 29 mSDtfsCounter, 48 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-11-26 11:54:33,344 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 297 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-11-26 11:54:33,347 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 154 states.
[2023-11-26 11:54:33,395 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 108.
[2023-11-26 11:54:33,395 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 108 states, 70 states have (on average 1.2285714285714286) internal successors, (86), 71 states have internal predecessors, (86), 24 states have call successors, (24), 9 states have call predecessors, (24), 13 states have return successors, (66), 27 states have call predecessors, (66), 24 states have call successors, (66)
[2023-11-26 11:54:33,397 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 176 transitions.
[2023-11-26 11:54:33,398 INFO  L78                 Accepts]: Start accepts. Automaton has 108 states and 176 transitions. Word has length 50
[2023-11-26 11:54:33,398 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:54:33,399 INFO  L495      AbstractCegarLoop]: Abstraction has 108 states and 176 transitions.
[2023-11-26 11:54:33,399 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 20 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 20 states have internal predecessors, (59), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18)
[2023-11-26 11:54:33,399 INFO  L276                IsEmpty]: Start isEmpty. Operand 108 states and 176 transitions.
[2023-11-26 11:54:33,403 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2023-11-26 11:54:33,404 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:54:33,404 INFO  L195           NwaCegarLoop]: trace histogram [9, 9, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:54:33,411 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2023-11-26 11:54:33,611 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:54:33,611 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:54:33,611 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:54:33,612 INFO  L85        PathProgramCache]: Analyzing trace with hash -110138383, now seen corresponding path program 1 times
[2023-11-26 11:54:33,612 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:54:33,612 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538412353]
[2023-11-26 11:54:33,612 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:33,612 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:54:33,630 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:33,721 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2023-11-26 11:54:33,735 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:33,829 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:33,845 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:33,904 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:33,910 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:33,964 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:33,968 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:34,034 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:34,036 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:34,041 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:34,043 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:34,048 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:34,050 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:34,055 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:54:34,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:34,076 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51
[2023-11-26 11:54:34,083 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:34,093 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:34,097 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:34,104 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:34,107 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:34,112 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:34,113 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:34,115 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:34,117 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:34,119 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:34,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:34,122 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:54:34,124 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:34,127 INFO  L134       CoverageAnalysis]: Checked inductivity of 276 backedges. 44 proven. 79 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked.
[2023-11-26 11:54:34,127 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:54:34,128 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538412353]
[2023-11-26 11:54:34,128 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538412353] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:54:34,128 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563546449]
[2023-11-26 11:54:34,128 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:34,129 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:54:34,129 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:54:34,130 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:54:34,158 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-11-26 11:54:34,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:34,238 INFO  L262         TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 12 conjunts are in the unsatisfiable core
[2023-11-26 11:54:34,248 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:54:34,399 INFO  L134       CoverageAnalysis]: Checked inductivity of 276 backedges. 17 proven. 119 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked.
[2023-11-26 11:54:34,399 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-26 11:54:35,463 INFO  L134       CoverageAnalysis]: Checked inductivity of 276 backedges. 17 proven. 129 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked.
[2023-11-26 11:54:35,464 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [563546449] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-26 11:54:35,464 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-26 11:54:35,464 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 24
[2023-11-26 11:54:35,465 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972162385]
[2023-11-26 11:54:35,465 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-26 11:54:35,466 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2023-11-26 11:54:35,466 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:54:35,467 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2023-11-26 11:54:35,467 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552
[2023-11-26 11:54:35,468 INFO  L87              Difference]: Start difference. First operand 108 states and 176 transitions. Second operand  has 24 states, 22 states have (on average 3.409090909090909) internal successors, (75), 24 states have internal predecessors, (75), 18 states have call successors, (23), 1 states have call predecessors, (23), 9 states have return successors, (27), 11 states have call predecessors, (27), 18 states have call successors, (27)
[2023-11-26 11:54:36,011 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:54:36,012 INFO  L93              Difference]: Finished difference Result 239 states and 461 transitions.
[2023-11-26 11:54:36,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2023-11-26 11:54:36,013 INFO  L78                 Accepts]: Start accepts. Automaton has  has 24 states, 22 states have (on average 3.409090909090909) internal successors, (75), 24 states have internal predecessors, (75), 18 states have call successors, (23), 1 states have call predecessors, (23), 9 states have return successors, (27), 11 states have call predecessors, (27), 18 states have call successors, (27) Word has length 106
[2023-11-26 11:54:36,014 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:54:36,016 INFO  L225             Difference]: With dead ends: 239
[2023-11-26 11:54:36,016 INFO  L226             Difference]: Without dead ends: 106
[2023-11-26 11:54:36,018 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 225 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260
[2023-11-26 11:54:36,020 INFO  L413           NwaCegarLoop]: 26 mSDtfsCounter, 60 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-11-26 11:54:36,020 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 256 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-11-26 11:54:36,021 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 106 states.
[2023-11-26 11:54:36,036 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 83.
[2023-11-26 11:54:36,037 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 83 states, 56 states have (on average 1.1785714285714286) internal successors, (66), 57 states have internal predecessors, (66), 14 states have call successors, (14), 8 states have call predecessors, (14), 12 states have return successors, (35), 17 states have call predecessors, (35), 14 states have call successors, (35)
[2023-11-26 11:54:36,038 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 115 transitions.
[2023-11-26 11:54:36,038 INFO  L78                 Accepts]: Start accepts. Automaton has 83 states and 115 transitions. Word has length 106
[2023-11-26 11:54:36,038 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:54:36,039 INFO  L495      AbstractCegarLoop]: Abstraction has 83 states and 115 transitions.
[2023-11-26 11:54:36,039 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 24 states, 22 states have (on average 3.409090909090909) internal successors, (75), 24 states have internal predecessors, (75), 18 states have call successors, (23), 1 states have call predecessors, (23), 9 states have return successors, (27), 11 states have call predecessors, (27), 18 states have call successors, (27)
[2023-11-26 11:54:36,039 INFO  L276                IsEmpty]: Start isEmpty. Operand 83 states and 115 transitions.
[2023-11-26 11:54:36,044 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2023-11-26 11:54:36,045 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:54:36,045 INFO  L195           NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:54:36,056 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-11-26 11:54:36,256 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2023-11-26 11:54:36,256 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:54:36,257 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:54:36,257 INFO  L85        PathProgramCache]: Analyzing trace with hash 1404947450, now seen corresponding path program 1 times
[2023-11-26 11:54:36,257 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:54:36,257 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918843963]
[2023-11-26 11:54:36,257 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:36,257 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:54:36,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,404 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2023-11-26 11:54:36,431 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,533 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:36,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,613 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:36,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,659 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:36,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,728 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:36,731 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,787 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:36,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,791 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:36,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,796 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:36,798 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,801 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:54:36,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,818 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51
[2023-11-26 11:54:36,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,830 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:36,833 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,838 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:36,839 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,843 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:36,844 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,845 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:36,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,848 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:36,849 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,851 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:54:36,852 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,854 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106
[2023-11-26 11:54:36,858 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,862 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:36,864 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,868 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:36,869 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,870 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:36,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,873 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:36,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:36,877 INFO  L134       CoverageAnalysis]: Checked inductivity of 564 backedges. 73 proven. 135 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked.
[2023-11-26 11:54:36,877 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:54:36,877 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918843963]
[2023-11-26 11:54:36,878 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918843963] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:54:36,878 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577581706]
[2023-11-26 11:54:36,878 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:36,878 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:54:36,878 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:54:36,879 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:54:36,908 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-11-26 11:54:36,999 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:37,001 INFO  L262         TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 14 conjunts are in the unsatisfiable core
[2023-11-26 11:54:37,006 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:54:37,183 INFO  L134       CoverageAnalysis]: Checked inductivity of 564 backedges. 36 proven. 211 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked.
[2023-11-26 11:54:37,183 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-26 11:54:38,761 INFO  L134       CoverageAnalysis]: Checked inductivity of 564 backedges. 36 proven. 227 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked.
[2023-11-26 11:54:38,761 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577581706] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-26 11:54:38,762 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-26 11:54:38,762 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 15] total 26
[2023-11-26 11:54:38,762 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702270988]
[2023-11-26 11:54:38,762 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-26 11:54:38,763 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2023-11-26 11:54:38,763 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:54:38,764 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2023-11-26 11:54:38,765 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650
[2023-11-26 11:54:38,765 INFO  L87              Difference]: Start difference. First operand 83 states and 115 transitions. Second operand  has 26 states, 24 states have (on average 3.375) internal successors, (81), 26 states have internal predecessors, (81), 20 states have call successors, (25), 1 states have call predecessors, (25), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32)
[2023-11-26 11:54:39,334 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:54:39,335 INFO  L93              Difference]: Finished difference Result 213 states and 371 transitions.
[2023-11-26 11:54:39,335 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. 
[2023-11-26 11:54:39,335 INFO  L78                 Accepts]: Start accepts. Automaton has  has 26 states, 24 states have (on average 3.375) internal successors, (81), 26 states have internal predecessors, (81), 20 states have call successors, (25), 1 states have call predecessors, (25), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) Word has length 147
[2023-11-26 11:54:39,336 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:54:39,338 INFO  L225             Difference]: With dead ends: 213
[2023-11-26 11:54:39,338 INFO  L226             Difference]: Without dead ends: 133
[2023-11-26 11:54:39,340 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 317 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=275, Invalid=1285, Unknown=0, NotChecked=0, Total=1560
[2023-11-26 11:54:39,341 INFO  L413           NwaCegarLoop]: 28 mSDtfsCounter, 69 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-11-26 11:54:39,341 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 238 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-11-26 11:54:39,342 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 133 states.
[2023-11-26 11:54:39,352 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 113.
[2023-11-26 11:54:39,352 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 113 states, 76 states have (on average 1.2105263157894737) internal successors, (92), 77 states have internal predecessors, (92), 20 states have call successors, (20), 11 states have call predecessors, (20), 16 states have return successors, (56), 24 states have call predecessors, (56), 20 states have call successors, (56)
[2023-11-26 11:54:39,354 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 168 transitions.
[2023-11-26 11:54:39,355 INFO  L78                 Accepts]: Start accepts. Automaton has 113 states and 168 transitions. Word has length 147
[2023-11-26 11:54:39,355 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:54:39,355 INFO  L495      AbstractCegarLoop]: Abstraction has 113 states and 168 transitions.
[2023-11-26 11:54:39,356 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 26 states, 24 states have (on average 3.375) internal successors, (81), 26 states have internal predecessors, (81), 20 states have call successors, (25), 1 states have call predecessors, (25), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32)
[2023-11-26 11:54:39,356 INFO  L276                IsEmpty]: Start isEmpty. Operand 113 states and 168 transitions.
[2023-11-26 11:54:39,359 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 201
[2023-11-26 11:54:39,359 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:54:39,360 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 14, 14, 12, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:54:39,370 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2023-11-26 11:54:39,565 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8
[2023-11-26 11:54:39,566 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:54:39,566 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:54:39,566 INFO  L85        PathProgramCache]: Analyzing trace with hash -1995652508, now seen corresponding path program 1 times
[2023-11-26 11:54:39,566 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:54:39,566 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440856132]
[2023-11-26 11:54:39,567 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:39,567 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:54:39,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:39,792 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2023-11-26 11:54:39,836 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,007 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:40,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,121 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:40,131 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,201 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:40,208 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,250 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:40,253 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,259 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:40,261 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,264 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:40,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,267 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:40,268 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,269 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:40,270 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,272 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:54:40,275 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,328 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:40,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,332 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:40,334 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,337 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-26 11:54:40,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,375 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:40,376 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,393 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:40,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,398 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2023-11-26 11:54:40,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,405 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:40,407 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,410 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:40,411 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,412 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:40,413 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,415 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:40,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,418 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2023-11-26 11:54:40,423 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,430 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:40,434 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,438 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:40,439 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,442 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:40,443 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,444 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:40,445 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,447 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:40,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,449 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:54:40,451 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,475 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:40,476 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,478 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:40,479 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,481 INFO  L134       CoverageAnalysis]: Checked inductivity of 1073 backedges. 155 proven. 209 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked.
[2023-11-26 11:54:40,482 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:54:40,482 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440856132]
[2023-11-26 11:54:40,482 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440856132] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:54:40,482 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617329650]
[2023-11-26 11:54:40,483 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:40,483 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:54:40,483 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:54:40,484 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:54:40,514 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-11-26 11:54:40,640 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:40,643 INFO  L262         TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 16 conjunts are in the unsatisfiable core
[2023-11-26 11:54:40,648 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:54:40,836 INFO  L134       CoverageAnalysis]: Checked inductivity of 1073 backedges. 65 proven. 353 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked.
[2023-11-26 11:54:40,837 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-26 11:54:43,114 INFO  L134       CoverageAnalysis]: Checked inductivity of 1073 backedges. 65 proven. 377 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked.
[2023-11-26 11:54:43,114 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [617329650] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-26 11:54:43,114 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-26 11:54:43,114 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 17] total 28
[2023-11-26 11:54:43,115 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933066335]
[2023-11-26 11:54:43,115 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-26 11:54:43,116 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2023-11-26 11:54:43,116 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:54:43,117 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2023-11-26 11:54:43,118 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756
[2023-11-26 11:54:43,118 INFO  L87              Difference]: Start difference. First operand 113 states and 168 transitions. Second operand  has 28 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 28 states have internal predecessors, (90), 22 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (37), 14 states have call predecessors, (37), 22 states have call successors, (37)
[2023-11-26 11:54:43,840 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:54:43,841 INFO  L93              Difference]: Finished difference Result 259 states and 446 transitions.
[2023-11-26 11:54:43,841 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. 
[2023-11-26 11:54:43,842 INFO  L78                 Accepts]: Start accepts. Automaton has  has 28 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 28 states have internal predecessors, (90), 22 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (37), 14 states have call predecessors, (37), 22 states have call successors, (37) Word has length 200
[2023-11-26 11:54:43,843 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:54:43,846 INFO  L225             Difference]: With dead ends: 259
[2023-11-26 11:54:43,847 INFO  L226             Difference]: Without dead ends: 154
[2023-11-26 11:54:43,849 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 436 SyntacticMatches, 7 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=342, Invalid=1638, Unknown=0, NotChecked=0, Total=1980
[2023-11-26 11:54:43,850 INFO  L413           NwaCegarLoop]: 28 mSDtfsCounter, 95 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-11-26 11:54:43,851 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 281 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-11-26 11:54:43,853 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 154 states.
[2023-11-26 11:54:43,868 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 144.
[2023-11-26 11:54:43,868 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 144 states, 100 states have (on average 1.24) internal successors, (124), 98 states have internal predecessors, (124), 26 states have call successors, (26), 18 states have call predecessors, (26), 17 states have return successors, (73), 27 states have call predecessors, (73), 26 states have call successors, (73)
[2023-11-26 11:54:43,871 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 223 transitions.
[2023-11-26 11:54:43,872 INFO  L78                 Accepts]: Start accepts. Automaton has 144 states and 223 transitions. Word has length 200
[2023-11-26 11:54:43,873 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:54:43,873 INFO  L495      AbstractCegarLoop]: Abstraction has 144 states and 223 transitions.
[2023-11-26 11:54:43,873 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 28 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 28 states have internal predecessors, (90), 22 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (37), 14 states have call predecessors, (37), 22 states have call successors, (37)
[2023-11-26 11:54:43,873 INFO  L276                IsEmpty]: Start isEmpty. Operand 144 states and 223 transitions.
[2023-11-26 11:54:43,884 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 405
[2023-11-26 11:54:43,884 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:54:43,884 INFO  L195           NwaCegarLoop]: trace histogram [32, 32, 27, 27, 24, 23, 16, 16, 16, 16, 16, 16, 16, 13, 13, 13, 13, 13, 13, 13, 10, 9, 8, 3, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:54:43,891 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2023-11-26 11:54:44,091 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2023-11-26 11:54:44,092 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:54:44,092 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:54:44,092 INFO  L85        PathProgramCache]: Analyzing trace with hash -2130646165, now seen corresponding path program 2 times
[2023-11-26 11:54:44,092 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:54:44,093 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860867388]
[2023-11-26 11:54:44,093 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:44,093 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:54:44,188 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:44,639 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2023-11-26 11:54:44,693 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,051 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,254 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,269 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,370 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,380 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,478 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,530 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,533 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,539 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,542 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,545 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,547 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:45,548 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,549 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:45,550 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,552 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:54:45,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,608 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,612 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:45,613 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,621 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-26 11:54:45,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,660 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,677 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:45,679 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,682 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2023-11-26 11:54:45,686 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,693 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,694 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,697 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,699 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,701 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:45,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,706 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:45,707 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,709 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2023-11-26 11:54:45,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,729 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,735 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,742 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,747 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,751 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,752 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,754 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:45,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,757 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:45,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,759 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:54:45,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,763 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,766 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:45,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,768 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-26 11:54:45,770 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,774 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,776 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,779 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,780 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,781 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:45,782 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,783 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:45,784 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,786 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241
[2023-11-26 11:54:45,798 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,819 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,825 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,840 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,844 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,854 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,858 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,864 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,871 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,875 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,876 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,877 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:45,878 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,880 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:45,881 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,882 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:54:45,884 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,887 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,887 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,891 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:45,892 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,893 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-26 11:54:45,895 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,897 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,900 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:45,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,902 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2023-11-26 11:54:45,904 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,908 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,910 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,913 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,915 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:45,916 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,917 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:45,918 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,921 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2023-11-26 11:54:45,922 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,925 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:45,926 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,928 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:45,929 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:45,934 INFO  L134       CoverageAnalysis]: Checked inductivity of 4709 backedges. 250 proven. 672 refuted. 0 times theorem prover too weak. 3787 trivial. 0 not checked.
[2023-11-26 11:54:45,934 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:54:45,934 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860867388]
[2023-11-26 11:54:45,935 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860867388] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:54:45,935 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559661549]
[2023-11-26 11:54:45,935 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-11-26 11:54:45,935 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:54:45,935 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:54:45,936 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:54:45,954 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2023-11-26 11:54:46,187 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-11-26 11:54:46,187 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-26 11:54:46,192 INFO  L262         TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 18 conjunts are in the unsatisfiable core
[2023-11-26 11:54:46,200 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:54:46,432 INFO  L134       CoverageAnalysis]: Checked inductivity of 4709 backedges. 144 proven. 987 refuted. 0 times theorem prover too weak. 3578 trivial. 0 not checked.
[2023-11-26 11:54:46,432 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-26 11:54:49,994 INFO  L134       CoverageAnalysis]: Checked inductivity of 4709 backedges. 144 proven. 1020 refuted. 0 times theorem prover too weak. 3545 trivial. 0 not checked.
[2023-11-26 11:54:49,994 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [559661549] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-26 11:54:49,994 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-26 11:54:49,995 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 19] total 30
[2023-11-26 11:54:49,995 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610809466]
[2023-11-26 11:54:49,995 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-26 11:54:49,996 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 30 states
[2023-11-26 11:54:49,996 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:54:49,998 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants.
[2023-11-26 11:54:49,998 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=736, Unknown=0, NotChecked=0, Total=870
[2023-11-26 11:54:49,998 INFO  L87              Difference]: Start difference. First operand 144 states and 223 transitions. Second operand  has 30 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 30 states have internal predecessors, (96), 24 states have call successors, (30), 1 states have call predecessors, (30), 12 states have return successors, (40), 15 states have call predecessors, (40), 24 states have call successors, (40)
[2023-11-26 11:54:50,838 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:54:50,839 INFO  L93              Difference]: Finished difference Result 333 states and 593 transitions.
[2023-11-26 11:54:50,839 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. 
[2023-11-26 11:54:50,839 INFO  L78                 Accepts]: Start accepts. Automaton has  has 30 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 30 states have internal predecessors, (96), 24 states have call successors, (30), 1 states have call predecessors, (30), 12 states have return successors, (40), 15 states have call predecessors, (40), 24 states have call successors, (40) Word has length 404
[2023-11-26 11:54:50,840 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:54:50,843 INFO  L225             Difference]: With dead ends: 333
[2023-11-26 11:54:50,843 INFO  L226             Difference]: Without dead ends: 196
[2023-11-26 11:54:50,846 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 958 GetRequests, 902 SyntacticMatches, 8 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=406, Invalid=2044, Unknown=0, NotChecked=0, Total=2450
[2023-11-26 11:54:50,849 INFO  L413           NwaCegarLoop]: 27 mSDtfsCounter, 96 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-11-26 11:54:50,849 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 351 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-11-26 11:54:50,850 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 196 states.
[2023-11-26 11:54:50,867 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 172.
[2023-11-26 11:54:50,868 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 172 states, 121 states have (on average 1.2148760330578512) internal successors, (147), 117 states have internal predecessors, (147), 32 states have call successors, (32), 24 states have call predecessors, (32), 18 states have return successors, (92), 30 states have call predecessors, (92), 32 states have call successors, (92)
[2023-11-26 11:54:50,870 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 271 transitions.
[2023-11-26 11:54:50,871 INFO  L78                 Accepts]: Start accepts. Automaton has 172 states and 271 transitions. Word has length 404
[2023-11-26 11:54:50,873 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:54:50,873 INFO  L495      AbstractCegarLoop]: Abstraction has 172 states and 271 transitions.
[2023-11-26 11:54:50,873 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 30 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 30 states have internal predecessors, (96), 24 states have call successors, (30), 1 states have call predecessors, (30), 12 states have return successors, (40), 15 states have call predecessors, (40), 24 states have call successors, (40)
[2023-11-26 11:54:50,873 INFO  L276                IsEmpty]: Start isEmpty. Operand 172 states and 271 transitions.
[2023-11-26 11:54:50,920 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 624
[2023-11-26 11:54:50,921 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:54:50,921 INFO  L195           NwaCegarLoop]: trace histogram [46, 46, 45, 45, 38, 36, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 16, 13, 9, 8, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:54:50,931 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2023-11-26 11:54:51,128 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2023-11-26 11:54:51,128 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:54:51,129 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:54:51,129 INFO  L85        PathProgramCache]: Analyzing trace with hash 1982835301, now seen corresponding path program 3 times
[2023-11-26 11:54:51,129 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:54:51,130 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554458233]
[2023-11-26 11:54:51,130 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:51,130 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:54:51,252 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:52,556 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2023-11-26 11:54:52,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:53,614 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:53,669 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,088 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,388 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,404 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,514 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,523 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,578 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,583 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,592 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,594 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,597 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,601 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,602 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,606 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:54,607 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,608 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:54,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,610 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:54:54,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,614 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,615 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,616 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:54,617 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,619 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-26 11:54:54,622 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,665 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,668 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,704 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,707 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:54,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,711 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:54,713 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,716 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2023-11-26 11:54:54,719 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,727 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,728 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,731 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,732 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,733 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:54,734 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,736 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:54,737 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,739 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2023-11-26 11:54:54,750 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,782 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,800 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,810 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,812 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,816 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,820 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,821 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,822 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:54,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,824 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:54,825 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,827 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:54:54,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,831 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,833 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:54,834 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,836 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-26 11:54:54,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,842 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,844 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,846 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,849 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:54,850 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,851 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:54,852 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,854 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2023-11-26 11:54:54,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,860 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,861 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,864 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,865 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,866 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:54,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,868 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:54,869 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,871 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296
[2023-11-26 11:54:54,883 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,916 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,931 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,934 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,939 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,945 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,949 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,950 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,951 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:54,952 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,953 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:54,954 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,955 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:54:54,957 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,959 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,961 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,962 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:54,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,964 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-26 11:54:54,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,971 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,973 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,975 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,978 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:54,979 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,981 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:54,983 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,985 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2023-11-26 11:54:54,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:54,996 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:54,998 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,002 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:55,004 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,007 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:55,008 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,009 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:55,010 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,011 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:55,012 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,014 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:54:55,016 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,020 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:55,022 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,023 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:55,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,026 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473
[2023-11-26 11:54:55,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,193 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:55,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,294 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:55,300 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,352 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:55,355 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,360 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:55,362 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,364 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:55,365 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,366 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:55,367 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,369 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:55,369 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,371 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:54:55,373 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,416 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:55,418 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,421 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:55,425 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,430 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-26 11:54:55,434 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,441 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:55,443 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,452 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:55,454 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,456 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:55,457 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,458 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:55,464 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,466 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2023-11-26 11:54:55,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,511 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:55,514 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,552 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:54:55,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,570 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:54:55,571 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,574 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:54:55,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,585 INFO  L134       CoverageAnalysis]: Checked inductivity of 11369 backedges. 1730 proven. 1205 refuted. 0 times theorem prover too weak. 8434 trivial. 0 not checked.
[2023-11-26 11:54:55,585 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:54:55,586 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554458233]
[2023-11-26 11:54:55,586 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554458233] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:54:55,586 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876661321]
[2023-11-26 11:54:55,586 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2023-11-26 11:54:55,586 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:54:55,587 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:54:55,588 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:54:55,623 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2023-11-26 11:54:55,830 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s)
[2023-11-26 11:54:55,830 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-26 11:54:55,833 INFO  L262         TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 16 conjunts are in the unsatisfiable core
[2023-11-26 11:54:55,853 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:54:56,066 INFO  L134       CoverageAnalysis]: Checked inductivity of 11369 backedges. 1683 proven. 84 refuted. 0 times theorem prover too weak. 9602 trivial. 0 not checked.
[2023-11-26 11:54:56,066 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-26 11:54:58,593 INFO  L134       CoverageAnalysis]: Checked inductivity of 11369 backedges. 1683 proven. 89 refuted. 0 times theorem prover too weak. 9597 trivial. 0 not checked.
[2023-11-26 11:54:58,593 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876661321] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-26 11:54:58,593 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-26 11:54:58,594 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 14, 17] total 41
[2023-11-26 11:54:58,594 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578752724]
[2023-11-26 11:54:58,594 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-26 11:54:58,596 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 41 states
[2023-11-26 11:54:58,596 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:54:58,597 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants.
[2023-11-26 11:54:58,598 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1395, Unknown=0, NotChecked=0, Total=1640
[2023-11-26 11:54:58,599 INFO  L87              Difference]: Start difference. First operand 172 states and 271 transitions. Second operand  has 41 states, 41 states have (on average 2.8048780487804876) internal successors, (115), 41 states have internal predecessors, (115), 26 states have call successors, (38), 1 states have call predecessors, (38), 17 states have return successors, (49), 31 states have call predecessors, (49), 26 states have call successors, (49)
[2023-11-26 11:54:59,405 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:54:59,406 INFO  L93              Difference]: Finished difference Result 390 states and 702 transitions.
[2023-11-26 11:54:59,406 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-11-26 11:54:59,407 INFO  L78                 Accepts]: Start accepts. Automaton has  has 41 states, 41 states have (on average 2.8048780487804876) internal successors, (115), 41 states have internal predecessors, (115), 26 states have call successors, (38), 1 states have call predecessors, (38), 17 states have return successors, (49), 31 states have call predecessors, (49), 26 states have call successors, (49) Word has length 623
[2023-11-26 11:54:59,407 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:54:59,411 INFO  L225             Difference]: With dead ends: 390
[2023-11-26 11:54:59,411 INFO  L226             Difference]: Without dead ends: 219
[2023-11-26 11:54:59,414 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1465 GetRequests, 1407 SyntacticMatches, 8 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1168 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=414, Invalid=2238, Unknown=0, NotChecked=0, Total=2652
[2023-11-26 11:54:59,415 INFO  L413           NwaCegarLoop]: 57 mSDtfsCounter, 97 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-11-26 11:54:59,415 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 524 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-11-26 11:54:59,416 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 219 states.
[2023-11-26 11:54:59,434 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 215.
[2023-11-26 11:54:59,435 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 215 states, 154 states have (on average 1.051948051948052) internal successors, (162), 148 states have internal predecessors, (162), 42 states have call successors, (42), 35 states have call predecessors, (42), 18 states have return successors, (109), 31 states have call predecessors, (109), 42 states have call successors, (109)
[2023-11-26 11:54:59,438 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 313 transitions.
[2023-11-26 11:54:59,438 INFO  L78                 Accepts]: Start accepts. Automaton has 215 states and 313 transitions. Word has length 623
[2023-11-26 11:54:59,439 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:54:59,439 INFO  L495      AbstractCegarLoop]: Abstraction has 215 states and 313 transitions.
[2023-11-26 11:54:59,439 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 41 states, 41 states have (on average 2.8048780487804876) internal successors, (115), 41 states have internal predecessors, (115), 26 states have call successors, (38), 1 states have call predecessors, (38), 17 states have return successors, (49), 31 states have call predecessors, (49), 26 states have call successors, (49)
[2023-11-26 11:54:59,440 INFO  L276                IsEmpty]: Start isEmpty. Operand 215 states and 313 transitions.
[2023-11-26 11:54:59,450 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 977
[2023-11-26 11:54:59,450 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:54:59,451 INFO  L195           NwaCegarLoop]: trace histogram [74, 74, 69, 69, 58, 57, 37, 37, 37, 37, 37, 37, 37, 34, 34, 34, 34, 34, 34, 34, 24, 20, 16, 12, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:54:59,459 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2023-11-26 11:54:59,659 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2023-11-26 11:54:59,659 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:54:59,659 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:54:59,659 INFO  L85        PathProgramCache]: Analyzing trace with hash 990407125, now seen corresponding path program 4 times
[2023-11-26 11:54:59,660 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:54:59,660 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144184655]
[2023-11-26 11:54:59,660 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:54:59,660 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:54:59,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:01,613 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2023-11-26 11:55:01,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:02,727 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:02,777 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,205 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,426 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,550 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,636 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,642 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,682 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,685 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,691 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,692 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,695 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,696 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,698 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:03,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,700 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:03,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,702 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:55:03,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,760 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,762 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,764 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:03,765 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,768 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-26 11:55:03,772 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,781 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,784 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,787 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,790 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:03,791 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,793 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:03,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,796 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2023-11-26 11:55:03,801 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,815 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,821 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,826 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,828 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:03,829 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,830 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:03,831 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,833 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:55:03,834 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,837 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,839 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:03,840 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,842 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173
[2023-11-26 11:55:03,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,914 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,917 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:03,966 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:03,968 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,014 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,016 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,034 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,036 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,039 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:04,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,045 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:55:04,049 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,056 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,058 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,061 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241
[2023-11-26 11:55:04,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,116 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,123 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,145 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,161 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,165 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,177 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,179 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,183 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,185 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,192 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,193 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,195 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,196 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,197 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:04,198 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,200 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:55:04,201 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,204 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,206 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,207 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,208 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,210 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-26 11:55:04,212 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,216 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,218 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,221 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,224 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,225 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,226 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:04,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,229 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2023-11-26 11:55:04,232 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,239 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,246 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,248 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,251 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,252 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,254 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,255 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,256 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:04,257 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,258 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:55:04,260 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,263 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,264 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,266 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,267 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,268 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173
[2023-11-26 11:55:04,272 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,279 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,281 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,292 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,294 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,297 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,299 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,300 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,302 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:04,303 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,305 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:55:04,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,310 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,311 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,312 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,313 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,316 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486
[2023-11-26 11:55:04,390 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,484 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,532 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,585 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,591 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,603 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,607 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,613 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,616 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,620 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,622 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,624 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,627 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,629 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:04,630 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,631 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:55:04,633 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,635 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,638 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,638 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,640 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-26 11:55:04,642 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,646 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,648 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,651 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,657 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,658 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,659 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:04,660 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,661 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2023-11-26 11:55:04,665 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,672 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,675 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,686 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,688 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,691 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,692 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,694 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,697 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:04,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,699 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:55:04,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,704 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,707 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,708 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,710 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173
[2023-11-26 11:55:04,713 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,721 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,723 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,728 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,730 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,736 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,737 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,742 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,743 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,744 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:04,745 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,747 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:55:04,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,751 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,752 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,753 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,754 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,756 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241
[2023-11-26 11:55:04,776 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,813 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,821 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,842 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,858 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,862 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,868 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,870 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,874 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,876 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,878 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,881 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,882 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,884 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:04,885 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,892 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:55:04,894 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,896 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,897 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,898 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,903 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-26 11:55:04,908 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,912 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,918 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,919 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,921 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,923 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:04,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,925 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2023-11-26 11:55:04,928 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,934 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,937 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,940 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,942 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,945 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,947 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,957 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:04,958 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,959 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:55:04,960 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,963 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,964 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,965 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,967 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173
[2023-11-26 11:55:04,971 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,977 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,979 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,983 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,984 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,987 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,988 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,989 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,990 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2023-11-26 11:55:04,991 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,992 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-26 11:55:04,994 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,996 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-11-26 11:55:04,997 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:04,998 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-26 11:55:04,999 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:05,014 INFO  L134       CoverageAnalysis]: Checked inductivity of 28345 backedges. 691 proven. 2972 refuted. 0 times theorem prover too weak. 24682 trivial. 0 not checked.
[2023-11-26 11:55:05,014 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:05,014 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144184655]
[2023-11-26 11:55:05,014 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144184655] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:55:05,015 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349962314]
[2023-11-26 11:55:05,015 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2023-11-26 11:55:05,015 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:05,015 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:05,019 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:05,042 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5c93fcc-14ed-4610-b14b-c928db2cabb8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2023-11-26 11:55:05,461 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2023-11-26 11:55:05,461 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-26 11:55:05,469 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1736 conjuncts, 22 conjunts are in the unsatisfiable core
[2023-11-26 11:55:05,486 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:05,721 INFO  L134       CoverageAnalysis]: Checked inductivity of 28345 backedges. 11076 proven. 427 refuted. 0 times theorem prover too weak. 16842 trivial. 0 not checked.
[2023-11-26 11:55:05,721 INFO  L327         TraceCheckSpWp]: Computing backward predicates...